HomeMy WebLinkAboutResolution - 4714 - Contract - Williams & Peters Construction Co Inc - Frankford Ave Reconstruction - 01_26_1995Resolution No. 4714
January 26, 1995
Item #14
RESOLUTION
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK:
THAT the Mayor of the City of Lubbock BE and is hereby authorized and directed to
execute for and on behalf of the City of Lubbock a Contract and all related documents by and
between the City of Lubbock and Williams & Peters Construction Co., Inc. of Lubbock, Texas,
to furnish and install all materials as bid for the Frankford Avenue Reconstruction - 66th to 82nd
Street for the City of Lubbock, which contract is attached hereto, which shall be spread upon the
minutes of the Council and as spread upon the minutes of this Council shall constitute and be a
part of this Resolution as if fully copied herein in detail.
Passed by the City Council this 26th day of
ATTEST:
etty M. Johnson, Cify Secretary
APPROVED AS TO CONTENT:
Victor KiInjan, Purchasing Manager
APPROVED AS TO FORM:
AssistantCitT Attorney
DGV:dp\Crk"ocs\Fmldord.Res
January 17, 1995
January 1995.
J
CITY OF LUBBOCK
SPECIFICATIONS FOR
FRANKFORD AVENUE RECONSTRUCTION
66TH STREET TO 82ND STREET
BID #13129
«� 0&- 6y
31
CITY OF LUBBOCK
Lubbock, Texas
City of Lubbock
P.O. Box 2000
Lubbock, Texas 79457
606-767-2167
Office of
Purchasing
MAILED TO VENDOR January 5,1995
CLOSE DATE: January 11,1995 @ 2:00 P.M.
Bid #13129 - FRANIFORD AVENUE RECONSTRUCTION 66TH STREET TO 82ND STREET
ADDENDUM #1
Please modify or amend Contract Documents as follows:
1. The plans show #6 dowels and the specifications state #8 dowels for 8 112" thick concrete
pavement. The specifications will govern and we will require #8 dowels for the concrete
pavement.
2. Bid item #9 on page 4 should be "35,200 square yards."
3. Fiber reinforced concrete shall be required in the concrete pavement
4. Page 5-2; specifications require crushed stone, crushed gravel or natural sand be used The
crushed material shall be required in the concrete pavement only. All other concrete may
incorporate other approved aggregate.
PLEASE RETURN ONE COPY WITH YOUR BID
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CITY OF LUBBOCKREQUEST FOR BIDS
FOR
TITLE: FRANKFORD AVENUE RECONSTRUCTION
66TH STREET TO 82ND STREET
ADDRESS: LUBBOCK, TEXAS
BID NUMBER: 13129
PROJECT NUMBER: 9925.9240
CONTRACT PREPARED BY: PURCHASING DEPARTMENT
INDEX
1. NOTICE TO BIDDERS
2. GENERAL INSTRUCTIONS TO BIDDERS
3. BID PROPOSAL - BID FOR UNIT PRICE CONTRACTS
4. PAYMENT BOND
S. PERFORMANCE BOND
6. CERTIFICATE OF INSURANCE
7. _ CONTRACT
8. GENERAL CONDITIONS OF THE AGREEMENT
9. CURRENT WAGE DETERMINATIONS
10. SPECIFICATIONS
II. SPECIAL CONDITIONS
12. NOTICE OF ACCEPTANCE
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NOTICE TO BIDS
BID 013129
Sealed bids addressed to Ron Shuffidd, Senior Buyer, City of Lubbock, Texas, will be received at the
office of the Purchasing Manager, Municipal Bldg., 1625 13th St., Room L-04, Lubbock, Texas, 79401, until 2 00
O'clock a.m. i lth day of January.1995. or as changed by the issuance of formal addenda to all planholders, to
furnish all labor and materials and perform all work for the construction of the following described project:
FRANKFORD AVENUE RECONSTRUCTION-66TH STREET TO 82ND STREET
After the expiration of the time and date above first written, said sealed bids- will be opened by the Buyer
at his office and publicly read aloud.
It is the sole responsibility of the bidder to insure that his bid is actually in the office of Purchasing
Manager for the City of Lubbock, prior to the expiration of the date above first written.
The City of Lubbock will consider the bids on the 26th day of Januarv.1995, at the Municipal Building,
1625 13th Street, Lubbock, Texas, or as soon thereafter as may be reasonably convenient, subject to the right to
reject any or all bids and waive any formalities. The successful bidder will be required to furnish a performance
bond and payment bond in aocordance with Article 5160, Vernon's Ann. Civil St., in the amount of 1000/a of the
total contract price in the event that said contract price exceeds $25,000.00. Said statutory bonds should be issued
by a company carrying a current P;st Rating of P- or e:nor, as the rating of the bond company is a factor that
will be considered in determination of the lowest EMMible bidder. If the contract price does not exceed
$25,000.00 the said statutory bonds will not be required.
Bidders are required, whether or not a payment or performance bond is required, to submit a cashier's or
certified check issued by a bank satisfactory to the City of Lubbock, or a proposal bond from a reliable surety
company, payable without recourse to the order of the City of Lubbock in an amount not less than 5% of the total
amount of the bid submitted as a guarantee that bidder will enter into a contract and execute all necessary bonds (if
required) within 10 days after notice of award of the contract to him.
It shall be each bidders sole responsibility to inspect the site of the work and to inform himself regarding
all local conditions under which the work is to be dune. It shall be understood and agreed that all such factors have
been thoroughly investigated and considered in the preparation of the bid submitted
The plans, specifications, proposal forms and contract documents may be examined at the office of the
Parkhill, Smith and Cooper, 4010 Avenue R, Lubbock, Texas 79412
Attention of each bidder is particularly called to the schedule of general prevailing rate of per diem wages
included in the contract documents on file in the office of the Purchasing Manager of the City of Lubbock, which
document is specifically referred to in this notice to bidders. Each bidder's attention is further directed to provision
of Article 5159a, Vernon's Ann. Civil St., and the requirements contained therein concerning the above wage scale
and payment by the contractor of the prevailing rates of wages as heretofore established by owner in said wage
scale.
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The City of Lubbock hereby notifies all bidders that in regard to any contract entered into pursuant to this
advertisement, minority and women business enterprises will be afforded equal opportunities to submit bids in
response to this invitation and will not be discriminated against on the grounds of race, color, sear, disability, or
national origin in consideration for an award.
There will be a pre -bid conference on 4th day of January,1995, at 10:00 o'clock am.. Purchasing
Conference Room L04, Lubbock Municipal Building, 1625 13th Street, Lubbock, Texas.
The City of Lubbock does not discriminate against persons with disabilities. City of Lubbock pre -bid
meetings and bid openings are available to all persons regardless of disability. If you would like bid information
made available in a more accessible format or if you require assistance, please contact the Purchasing Department
at (806) 767-2167 (Monday -Friday, 8:00 - 5:00 p.m.) or 1625 13th Street Room L-04 at least 48 hours in advance
of the meeting.
W
RON
SENIOR BUYER
ADVERTISEMENT FOR BIDS
BID # 13129
Sealed bids addressed to Ron Shuffield, Senior Buyer, Purchasing Department, City of Lubbock,
Texas, will be received at the Purchasing Office, Municipal Building, 1625 13th Street, Room L-04,
Lubbock, Texas, 79401 until 2:00 o'clock o.m. on the 11tb day of January.1995, or as changed by the
issuance of formal addenda to all planholders, to, furnish all labor and materials and perform all work for
the construction of the following described project:
FRANEFORD AVENUE RECONSTRUCTION-66TH STREET TO 82ND STREET
After the expiration of the time and date above first written, said sealed bids will be opened in the
office of the Buyer and publicly read aloud
The plans, specifications, bid forms and contract documents may be examine at the office of
Parkhill, Smith and Cooper, 4010 Avenue R, Lubbock, Texas 79412.
Attention of each bidder is parbcularly called to the Schedule of General Prevailing Rate of Per
Diem Wages included in the contract documents on file in the office of the Purchasing Manager of the
City of Lubbock, Texas. Each biddees attention is further directed to the provisions of Article 5159a,
Vernon's Ann. Civil St., and the requirements contained therein concerning such wage scales and
payment by the contractor of the prevailing rates of wages as heretofore established by the City of
Lubbock
The City of Lubbock hereby notifies all bidders that in regard to any contract entered into
pursuant to this advertisement, minority and women business enterprises will be afforded equal
opportunities to submit bids in response to this invitation and will not be discriminated against on the
grounds of race, color, sex, disability, or national origin in consideration for an award.
There will be a prebid conference on the 4tb day of January.1995. at 10:00 a.m„ in the
Personnel Conference Room 108, 1625 13th Street, Lubbock, Texas.
The City of Lubbock does not discriminate against persons with disabilities. City of Lubbock
pre -bid meetings and bid openings are available to all persons regardless of disability. If you would like
bid information made available in a more accessible format or if you require assistance, please contact the
Purchasing Department at (806) 767-2167 (Monday Friday, 8:00 - 5:00 p.m.) or 1625 13th Street, Room
L-04 at least 48 hours in advance of the meeting.
OF Lyoom
t.
/R&ON
SENIOR BUYER
GENERAL INSTRUCTIONS 70 BIDDERS
is
GENERAL INSTRUCTIONS TO BIDDERS
1. SOME OF WORK
The contractor shall fiunish all labor, superintendence, machinery. equipment and all materials necessary to complete this
project in accordance with contract documents for the FRANKFORD AVENUE RECONSTRUCTION-WM STREET
TO 92ND STREET.
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2. :..O RAC 1 DOCIA�
All work covered by this contract shall be done in accordance with contract documents described in the General Conditions.
All bidders shall be thoroughly familiar with all of the requirements set forth on the contract documents for the construction
of this project and shall be responsible for the satisfactory completion of all work contemplated by said contract documents.
3. PLANS FOR USE BY BIDDERS
It is the intent of the City of Lubbock that all parties with an interest in submitting a bid on the project covered by the
contract documents be given a reasonable opportunity to examine the documents and prepare a bid without charge of
forfeiture of deposit. The contract documents, may be examined without charge as noted in the Notice to Bidders.
4. TM E AND ORDER FOR COMPLETION
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The construction covered by the contract documents shall be fully completed within 200 (Two -Hundred) working calendar
days from the date specified in the Notice to Proceed issued by the City of Lubbock to the successful bidder.
The Contractor will be permitted to prosecute the work in the order of his own choosing, provided, however. the City
reserves the right to require the Contractor to submit a progress schedule of the work contemplated by the contract
documents. In the event the City requires a progress schedule to be submitted, and it is determined by the City that the
progress of the work is not in accordance with the progress schedule so submitted, the City may direct the Contractor to take
such action as the City deems necessary to insure completion of the project within the W= specified
5. PAYMENT
All payments due to Contractor shall be made in accordance with the provisions of the General Conditions of the contract
documents.
6. AFFIDAVITS OF BILLS PAID
,.. The City of Lubbock reserves the right, prior to final acceptance of this project to require the Contractor to execute an
affidavit that all bills for labor, materials and incidentals incurred in the construction of the improvements contemplated by
the contract documents have been paid in full and that there are no claims pending, of which the Contractor has been
notified
i . 7. MATERIALS AND WORKMANSHIP
The intent of these contract documents is that only materials and workmanship of the best quality and grade will be
furnished. The fact that the specifications may fail to be sufficiently complete in some detail will not relieve the Contractor
of full responsibility for providing materials of high quality and for protecting them adequately until incorporated into the
project. The presence or absence of a representative of the City on the site will not relieve the Contractor of full
responsibility of complying with this provision. The specifications for materials and methods set forth in the contract
documents provide minimum standards of quality which the Owner believes necessary to procure a satisfactory project.
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8. GUARANTEES
All equipment and materials incorporated in the project and all construction shall be guaranteed against defective materials
and workmanship. Prior to final acceptance, the Contractor shall famish to the Owner, a written general guarantee which
shall provide that the Contractor shall remedy any defects in the work, and pay for any and all damages of any nature
whatsoever resulting in such defects, when such defects appear within ONE year from date of final acceptance of the work
as a result of defective materials or workmanship, at no cost to the Owner (City of Lubbock).
PLANS FOR THE CONTRACTOR
The contractor will be furnished one set of plans and specifications, and related contract documents for his use during
construction. Plans and specifications for use during construction will only be furnished directly to the Contractor. The
Contractor shall then distribute copies of plans and specifications to suppliers, subcontractors or others, as required for -
proper prosecution of the work contemplated by the Contractor.
10. PROTECTION OF THE WORK
The Contractor shall be responsible for the care, preservation, conservation, and protection of all materials, supplies,
machinery, equipment, tools, apparatus, accessories, facilities, and all means of construction, and any and all parts of the
work whether the Contractor has been paid, partially paid, or not paid for such work, until the date the City issues its
certificate of completion to Contractor. The City reserves the right, after the bids have been opened and before the contract
has been awarded, to require of a bidder the following information:
(a) The experience record of the bidder showing completed jobs of a similar nature to the one covered by the proposed
contract and all work in progress with bond amounts and percentage completed.
(b) A sworn statement of the current financial condition of the bidder.
(c) Equipment schedule.
11. TEXAS STATE SALES TAX
This contract is issued by an organization which qualifies for exemption provisions pursuant to provisions of Article 20.04
of the Texas Limited Sales, Excise and Use Tax Act.
The Contractor must obtain a limited sales, excise and use tax permit which shall enable him to buy the materials to be
incorporated into the work without paying the tax at the time of purchase.
12. PROTECTION OF SUBSURFACE LINES AND STRUCTURES
It shall be the Contractor's responsibility to prosecute the work contemplated by the contract documents in such a way as to
exercise due care to locate and prevent damage to all underground pipelines, utility lines, conduits or other underground
structures which might or could be damaged by Contractor during the construction of the project contemplated by these
contract documents. The City of Lubbock agrees that it will furnish Contractor the location of all such underground lines
and utilities of which it has knowledge. However, such fact shall not relieve the Contractor of his responsibilities
aforementioned. All such underground lines or structures cut or damaged by Contractor during the prosecution of the work
contemplated by this contract shall be repaired immediately by Contractor to the satisfaction of the City of Lubbock Texas,
at Contractor's expense.
13. BARRICADES AND SAFETY MEASURES
The contractor shall, at his own expense, furnish and erect such barricades, fences, lights and danger signals, and shall take
such other precautionary measures for the protection of persons, property and the work as may be necessary. The
Contractor will be held responsible for all damage to the work due to failure of barricades, signs, and lights to protect it, and
when damage is incurred, the damaged portion shall be immediately removed and replaced by Contractor at his own cost
4
and expense. The Contractor's responsibility for maintenance of barricades, signs, and lights shall not cease until the date
of issuance to Contractor of City's certificate of acceptance of the project
14. EXPLOSIVES
The use of explosives will not be permitted unless written permission to do so is obtained by the Contractor from the City.
In all cases where written permission is obtained for the use of explosives, the Contractor shall assume full responsibility for
all damage which may occur as a direct or indirect result of the blasting. In addition, in all cases where explosives are
authorized to be used, the Contractor shall use utmost care so as not to endanger We or property and the Contractor shall
further use only such methods as are currently utilized by persons, firms, or corporation:; engaged in similar type of
construction activity.
Explosive materials shall not be stored or kept at the construction site by the Contractor.
In all cases where explosives are to be used during the construction of the project contemplated by this contract, it shall be
the duty of the Contractor to notify each utility company having structures (above or below the ground) in proximity to the
site of the work of Contractor's intention to use explosives, and such notice shall be given sufficiently in advance to enable
the companies to take such steps as they may deem necessary to protect their property from injury. Such notice, however,
shall not relieve the Contractor of responsibility for any damage resulting from his blasting operations.
15. CONTRACTOR'S REPRESENTATIVE
The successful bidder shall be required to have a responsible local representative available at all times while the work is in
progress under this contract. The successful bidder shall be required to furnish the name, address and telephone number
where such local representative may be reached during the time that the work contemplated by this contract is in progress.
16. INSURANCE
The Contractor shall not commence work under this contract until he has obtained all insurance as required in the General
r= Conditions of the contract documents, from an underwriter authorized to do business in the State of Texas and satisfactory
to the City. Proof of coverage shall be furnished to the City and written notice of cancellation or any material change will
be provided ten (10) days in advance of cancellation or change. All policies shall contain an agreement on the part of the
F insurer waiving the right to subrogation
The insurance certificates furnished shall name the City as an additional insured and shall further state that all
subcontractors are named as additional insureds, or in the alternative, shall be accompanied by a statement from the
Contractor to the effect that no work on this particular project shall be subcontracted.
RAMEWIF :•• ��, •• •
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! Attention of each bidder is particularly called to the schedule of general prevailing rate of per diem wages included in these
contract documents. The wage rate which must be paid on this project shall not be less than specified in the schedule of
general prevailing rates of per diem wages as above mentioned. The bidders' attention i., further directed to the
requirements of Article 5159a, Vernon's Annotated Civil Statutes providing for the payment of the wage schedules above
mentioned and the bidder's obligations thereunder. The inclusion of the schedule of general prevailing rate of per diem
wages in these contract documents does not release the Contractor from compliance with any wage law that may be
applicable. Construction work under this contract requiring an inspector will not be performed on weekends or holidays
unless the following conditions exist:
(1) The project being constructed is essential to the City of Lubbock's ability to provide the necessary service to its
citizens.
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(2) Delays in construction are due to factors outside the control of the Contractor. The Contractor is approaching the
penalty provisions of the contract and Contractor can show he has made a diligent effort to complete the contract
within the allotted time. ' -
Before construction work requiring an inspector is to be performed on weekends or holidays, the Contractor must notify the
Owner's Representative not less than three fall working days prior to the weekend or holiday he desires to do work and
obtain written permission from the Owner's Representative to do such work The final decision on whether to allow
construction work requiring an inspector on weekends or holidays will be made by the Owner's Representative.
In any event, if a condition should occur or arise at the site of this project or from the work being done under this contract
which is hazardous or dangerous to property or life, the Contractor shall immediately commence work, regardless of the day
of the week or the time of day, to correct or alleviate such condition so that it is no longer dangerous to property or life.
is. PAY TENT OF EMPLOYEES AND FILING OF PAYROLLS
The contractor and each of his subcontractors shall pay each of his employees engaged in work on the project under this
contract in full (less mandatory legal deductions) in cash, or by check readily cashable without discount, not less often than
once each week The Contractor and each of his subcontractors engaged at the site of the work shall not later than the
seventh day following the payment of wages, file with the Owner's Representative, or Engineer, a certified, sworn, legible
copy of such payroll. This shall contain the name of each employee, his classification, the number of hours worked on each
day, rate of pay, and net pay. The affidavit shall state that the copy is a true and correct copy of such payroll, that no rebates
or deductions (except as shown) have been made, or will in the future be made from the wages paid as shown thereon. The
Contractor must classify employees according to one of the classifications set forth in the schedule of general prevailin&rate
of per diem wages, which schedule is included in the contract documents.
The Contractor shall forfeit as a penalty to the City of Lubbock on whose behalf this contract is made, ten dollars for each
laborer, workman, or mechanic employed for each calendar day, or portion thereof; such laborer, workman or mechanic is
paid less than the wages assigned to his particular classification as set forth in the schedule of general prevailing rate of per
diem wages included in these contract documents.
19. PROVISIONS CONCERNING ESCALATOR CLAUSES
Proposals submitted containing any conditions which provide for changes in the stated bid price due to increases or
decreases in the cost of materials, labor or other items required for the project will be rejected and returned to the bidder
without being considered.
20. PREPARATION FOR PROPOSAL
The bidder shall submit his proposal on forms famished by the City. All blank spaces in the form shall be correctly filled in
and the bidder shall state the price both in words and numerals, for which he proposes to do the work contemplated or
furnish the materials required. Such prices shall be written in ink, distinctly and legibly, or typewritten. In case of
discrepancy between the price written in words and the price written in figures, the price written in words shall govern. If
the proposal is submitted by an individual, his name must be signed by him or his duly authorized agent. If a proposal is
submitted by a firm, association, or partnership, the name and address of each member must be given and the proposal
signed by a member of the firm, association or partnership, or person duly authorized. If the proposal is submitted by a
company or corporation, the company or corporate name and business address must be given, and the proposal signed by an
official or duly authorized agent. Powers of attorney authorizing agents or others to sign proposals must be properly
certified and must be in writing and submitted with the proposal. The proposal shall be executed in ink
Each proposal shall be enclosed in a sealed envelope, addressed as specified in the Notice to Bidders, and endorsed on the
outside of the envelope in the following manner:
(a) Bidder's name
(b) Proposal for (description of the project).
Bid proposals may be withdrawn and resubmitted at any time prior to the time set for opening of the bids, but no proposal
may be withdrawn or altered thereafter.
21. BOUND COPY OF CONTRACT DOCUMENTS
�.., Bidder understands and agrees that the contract to be executed by bidder shall be bound and include the following:
(a)
Notice to Bidders.
(b)
General Instructions to Bidders.
(c)
Bidder's Proposal.
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(d)
Statutory Bond (if required).
(e)
Contract Agreement.
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General Conditions.
(g)
Special Conditions (if any).
(h)
Specifications.
(i)
Insurance Certificates.
(j)
All other documents made available to bidder for his inspection in accordance with the Notice to Bidders.
If Plans and Specifications are too bulky or cumbersome to be physically bound, they are to be considered incorporated by
reference into the aforementioned contract documents.
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BID PROPOSAL
BID FOR UNIT PRICE
PROJECT NO: 13129 - FRANEFORD AVENUE RECONSTRUCTION 66TH STREET TO 82ND STREET
Proposal of W 1 LLt L85 * PETVS (f)OSTEUCT- N %.LIV(,(hereinafter called "Bidder")
To the Honorable Mayor and City Council City of Lubbock, Texas (hereinafter called "Owner")
Gentlemen:
The Bidder in compliance with your invitation forbids for Fa M KV02 J) A U F_ . -RE (D A,,5Te U (.TI D 11
having Carefully examined the plans, specifications, instructions to bidders, notice to bidders and all other related
contract documents and the site of the proposed work, and being familiar with all of the conditions surrounding the
construction of the proposed project including the availability of materials and labor, hereby proposes to furnish all
labor, materials, and supplies; and to construct the project in accordance with the plans, specifications and contract
documents, within the time set forth therein and at the prices stated in Exhibit "A".
The Bidder binds himself on acceptance of his proposal to execute a contract and any required bonds, according to
1 the accompanying forms, for performing and completing the said work within the time stated and for the prices
t stated in Exhibit "A" of this proposal.
* Bidder hereby agrees to commence the work on the above project on or before a date to be specified in a written
"Notice to Proceed" of the Owner and to fully complete the project within 200 (Two Hundred) working days
thereafter as stipulated in the specifications and other contract documents. Bidder hereby further agrees to pay the
r owner as liquidated damages the sum of $200.00 (Two Hundred Dollars) for each consecutive working day in
excess of the time set forth hereinabove for completion of this project, all as more fully set forth in the general
conditions of the contract.
Bidder understands and agrees that this bid proposal shall be completed and submitted in accordance with of the
General Instructions to Bidder.
Bidder understands that the Owner reserves the right to reject any or all bids and to waive any formality in the
bidding.
The bidder agrees that this bid shall be good and may not be withdrawn for a period of thirty (30) calendar days
after the scheduled closing time for receiving bids.
The undersigned Bidder hereby declares that he has visited the site of the work and has carefully examined the
plans, specifications, and contract documents pertaining to the work covered by this bid, and he further agrees to
commence work on or before the date specified in the written notice to proceed, and to substantially complete the
work on which he has bid; as provided in the contract documents.
Biddersr r are required, whether a not a payment o performance bond is required, to submit a cashier's check or
certified check issued by a bank satisfactory to the City of Lubbock, or a proposal bond from a reliable surety
company, payable without recourse to the order of the City of Lubbock in an amount not less than five percent
(S%) of the total amount of the bid submitted as a guarantee that bidder will enter into a contract and execute all
necessary bonds (if required) within 10 days after notice of award of the contract to him.
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Enclosed with this roposal is a Cashier's Check or Certified Check for NCR
Dollars (S or a Proposal Bond in the sum of S 9e Dollars
�* which it is agreed shall be collected and retained by the Owner as liquidated damages in the event the proposal is
f accepted by the Owner and the undersigned fails to execute the necessary contract documents and the required
bond (if airy) with the Owner within ten (10) days after the date of receipt of written notification of acceptance of
said proposal; otherwise said check or bond shall be returned to the undersigned upon demand.
Bidder understands and agrees that the contract to be executed by Bidder shall be bound and include all contract
documents made available to him for his inspection in accordance with the Notice to Bidders.
ill [ 13: � L'_ /• 1
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�I MOP �� �:I�,
(Seal if Bidder is a Corporation)
ATTEST:
LIST OF SUBCONTRACTORS
1. R u s e I" -FAt/rIe5
2.
3.
4.
5.
6.
7.
8.
9.
0.
Minority Owned
Yes No
— V-.***
"EXHIBIT A"
PROPOSAL
CITY OF LUBBOCK, TEXAS
FRANKFORD AVENUE RECONSTRUCTION
STREET IMPROVEMENTS
_ /_ I , 1995
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID
1.
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2.
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2752-94
4
V
29,730 Remove, Salvage, Deliver and Stockpile
S.Y. Existing Asphalt Surfacing at the location
shown on the drawings, complete, per
square
yard: _
Dollars
and - Cents ($�. �J_) $ Z� Z%01� r
The total amount for Item 1 consists of:
MATERIALS: $ d•OD
LABOR: $
29,940 Remove, Salvage, Deliver and Stockpile
S.Y. Existing Base Course Material at the
location shown on the drawings, complete,
per square yard: _
Dollars
and Cents ($ U) O ) $
The total amount for.Item 2 consists of:
MATERIALS: $(� /C� 1 00
LABOR: $ 2 l7`D.0 _
P - 1
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID (Continued)
.3. 205 Remove and Dispose of Existing Concrete
L.F. Curb and Gutter, complete, per linear
4. 120
S.Y.
5.
2752-94
39,700
S.Y.
foot:
Dollars
and /ylt�2 Cents ($ 5. Db ) $
The total amount for Item 3 consists of:
MATERIALS $ D DO
LABOR: $ Q Z 5 .
Remove and Dispose of Existing Concrete
Slabs, complete, per square yard:
Dollars /
and Cents ($ iD- 0d ) $ JJZ00.00
The total amount for Item 4'consists of:
MATERIALS: $_o x d
LABOR: $ 1 ; ZD0 , 60
Subgrade Preparation, per square
yard:
\c- J Dollars q 3, Z 9500'
. Ds
and, Cents ($�_..� -� ) $
The total 'amount for Item 5 consists of:
MATERIALS $Co
LABOR: $ L—T �D %..� --
P 2
r.
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Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID (Continued)
6. 1,900 Shoulder Grading, including topsoiling,
S.Y.
per square yard:
Dollars
and Cents
The total amount for Item 6 consists of:
MATERIALS: $ '760100 _
LABOR: $_
7. 500
6-inch Caliche Base Course, complete
S.Y.
in place, per square yard:
Dollars
and /" Cents ($
The total amount for Item 7 consists of:
MATERIALS: $_ [� OI�D• OU _
LABOR: $ I, DOD , D(D _
8. 34,700
9-inch Bituminous Base Course (Asphalt
S.Y.
Stabilized Base Course), complete in
place, per square yard: _
.QLJ Dollars
•. `
and Cents ($ Lk
The total amount for Item 8 consists of:
MATERIALS: - $ .ZGI 7,7Z6.60
LABOR: $
2752-94
P - 3
$� D. oo
$ R(o ZIO, Do
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID (Continued)
S.Y.
10.
11.
4,800
S.Y.
1%-inch Bituminous Surface Course,
including prime and tack coats, complete.
in place, per square yard:
Dollars `W
107)3l2D.oD
and Cents
The total amount for Item 9 consists of:
MATERIALS: $ 6. OD
i `-2j��,D77��
LABOR: V
8-inch Portland Cement Concrete
Pavement, complete in place, per
squareyard•
Dollars % 172 O G'6, 190
�.+ .
and Cents ($ 3' . oz.°) $
The total amount for Item 10 consists of:
215 Buried Slabs, complete in place, per
S.Y. square yard: .0
Dollars - z 30
and _ Cents ($ ?. k 07-) , w $ 7714
The total amount for Item 11 consists of:
MATERIALS:
LABOR: $ �- i7'v� J`b91. ?Z -JV."
2752-94 P - 4
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID (Continued)
12. 1,760 30-inch Concrete Curb and Gut -ter and
L.F. 30-inch Concrete Gutter, complete in
place, per linear foot:
Dollars
and Cents ($10. ) $1 1;26q,.SL�
The total amount for Item 12 consists of:
MATERIALS: .$ 42t251• 7 D
LABOR: $` 1 SOS. 4OV _
13. 175
6-inch Concrete Slabs, complete in
S.Y.
place, per square yard:
Dollars
06 and /%?� Cents ($Z� ,
b �
The total amount for Item 13 consists
of:
2. 506 - 00 _
MATERIALS :II
))$
LABOR: $ ! Cp go. oo _
14. 3,000
4-inch Concrete Sidewalks and Wheel-
S.Y.
chair Ramps, complete in place, per
square yard:
Dollars
and Cents ($ �,b )
$ (a 01 000 OD
The total amount for Item 14 consists
of:
MATERIALS: $_3(0. 000, OLD
-
LABOR: $ 2 � Don, 0p _
2752-94
P - 5
Item Quantity ,
No. & Unit Description of Item and Unit Prices Total Amount
BASE BID (Continued)
15. 115 Pavement Markers (Channel Markers),
Each complete in place, per each:
Dollars
and /f z Cents ($ +, b Q ) $
The total amount /for IItem 15 consists of:
MATERIALS: $
LABOR :$ r Q T D o
16. 50 Remove, Salvage and Reinstall Existing
Each Sprinkler Unit, pop-up spray type,
including trenching, backfilling and —
restoration of disturbed area, PVC
irrigation piping and fittings, and
connections to existing irrigation —
system,, complete in place, per each:
Dollars f
and ,/NCO Cents ($ Lrd ) $ Z, S0V, DV
The totaliamount'for Item 16 consists of:
MATERIALS: $ o , oo
LABOR: $ Z 55) o . 00
2752-94 P - 6
PW
Item Quantity
r7No.
& Unit
Description of Item and Unit Prices
Total Amount
BASE BID (Continued)
17. 50
Remove, Salvage and Reinstall Existing
Each
Sprinkler Unit, pop-up impact type,
including trenching, backfilling and
F7
restoration of disturbed area, PVC
.7
irrigation piping and fittings, and
connections to existing irrigation
I,
system, complete in place, per each:
D�oUars
rr+
!
)�) •
and ,.�,r9 Cents ($60.Dd )
$ �. O
The total amount for Item 17 consists
of:
Q�
MATERIALS: $nn,,..--���� D0 —
LABOR: $ �, C./C JtJ. D 0 —
18. 25 Furnish and Install New Sprinkler Unit,
Each pop-up spray -type, including trenching,
f backfilling and restoration of disturbed
area, PVC irrigation piping and fittings,
^' and connections to existing irrigation
system, completein place, per each:
Dollars
and Cents ( $ 55: DQ) $ 1 75. 0 0
The total amount for Item 18 consists of:
MATERIALS:
LABOR: $_I3Ofo. Z5
2752-94 P - 7
i
i
i
Item Quantity —
No. & Unit De"scription of Item and Unit Prices Total Amount
BASE BID (Continued)
19. 25 Furnish and Install New -Sprinkler Unit,
Each pop-up impact type, including trenching,
backfilling and restoration of disturbed
area, PVC irrigation piping and fittings,
and connections to existing irrigation
system, complete in place, per -each:
--r--- Dollars
and Cents ($ 75, ors) $ -_
The total amount for Item 19 consists of:
MATERIALS: $ / �}3, 75 -
LABOR: $ 1231,25
20. 1 Temporary Erosion, Sedimentation and
L.S. Water Pollution Prevention and Control, —
complete, per lump
//sum:
yzz'�� �Lf/�1G�(� _ Dollars /
V
and " Cents ($ 5MOO $ `ran(1. O 0
The total amount for Item 20 consists of:
MATERIALS: $ 100 , 00
LABOR: $ `t' 601 0y
SUBTOTAL BASE BID
(Items l.through 20, Inclusive) $ --_
2752-94 P - 8
E
l
r.a
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount
ADDITIVE ALTERNATE
A-1 500
Removal of Existing Painted Traffic
S.F.
Marking, including application of an
emulsified asphalt surface treatment,
complete, per square foot:
Dollars
p
and Cents ($ 1.5o )
$
The total amount for Item A-1 consists
MATERIALS: $
of:
LABOR: $
.M
A-2 18,000
Preformed Traffic Marking, 4-inch wide
L.F.
lines, yellow or white, complete in
place, per linear foot:
Dollars
andCents ($J.a �D )
$�7400160
r�-
The total amount for Item A-2 consists
of:
*„
MATERIALS: $—
r
LABOR: $_13 E00. O O
A-3 750
Preformed Traffic Marking, 8-inch wide
t
L.F.
lines, yellow or white, complete in
r
place, per linear foot:
Dollars
�..
and Cents
The total amount for Item A-3 consists
of:
n
N 0 9. `15
MATERIALS: $J
�..
LABOR: $105L , 2�
r� 2752-94 P - 9
k
Item Quantity
No. & Unit Description of Item and Unit Prices Total Amount -
ADDITIVE ALTERNATE (Continued
A-4 75 Preformed Traffic Marking, 24-inch
L.F. wide stopbars, white, complete in
place, per linear foot: _
Dollars
and zll Cents ($ 12, 00-) $
The total amount for Item A-4 consists of:
MATERIALS: $ 10 l 5. D�
LABOR: $ Z Z 5• d 0
A-5 80 Preformed Traffic Marking, various
Each traffic directional symbols, white,
complete in place, per each:
Dollars
and Cents ($ 150.yb ) $
The total amountfor Item A-5 consists of:
MATERIALS: $ . ( /0o • o 0
LABOR: $3.000 nn
SUBTOTAL ADDITIVE ALTERNATE
(Items A-1 through A-5, Inclusive) $ g3.175, 00
SUBTOTAL BASE BID `'gW
(Items l through 20, Inclusive) $�J
13m. i,o2sI91�-.�
TOTAL BASE BID + ADDITIVE ALTERNATE A,J•
(Items 1 through A-5, Inclusive) ;? �
D.v. 1, 0 69,189.8D
Bidder acknowledges receipt of the following addenda:
2752-94 P - 10
Fidft and Guaranty Insurance Underwriters, Inc.
Baltimore, Maryland
A Stock Company
Bid Bond
Bond Number ........................
Know All Men By These Presents:
That................................
................................................ ofP,. Q,. Box.. 9Q7, Lubbock= Texas....79452..
................... .................. .. ......... as Principal, and the other undersigned, as Surety, are
held and firmly bound unto City, of,Lubbock............................................................
......................................................................................................
as Obligee, in the full and just sum of Amount Bid
............................................................................................. Dollars,
lawful money of the United States, for the payment of which sum, well and truly to be made, we bind ourselves, our heirs,
executors, administrators,. successors, and assigns, jointly and severally, firmly by these presents.
Whereas, the said Principal is herewith submitting its proposal
For Frankford Avenue Street Paving
The Condition Of This Obligation is such that if the aforsaid Principal shall be awarded the contract the said
Principal will, within the time required, enter into a formal contract and give a good and sufficient bond to secure the
performance of the terms and conditions of the contract, then this obligation to be void: otherwise the Principal and Surety will
pay unto the Obligee the difference in money between the amount of the bid of the said Principal and the amount for which the
Obligee legally contracts with another party to perform the work if the latter amount be in excess of the former, but in no event
shall liability hereunder exceed the penal sum hereof.
Signed, sealed and delivered January 11, 1995
(Date)
.............................................. (Seal)
�jl)Il.i,l.ms . .,TtQ�TiO1� Ct1,�N C............................................. (Seal)
or Fidelity and Guaranty Insurance Underwriters, Inc.
--r am'.. • • .. (a W& in Corporation)
............................................. ...i)oris Davis'. ....................,� .....j:
`3ttomeyct
i
s
Contract 500 (8-94) J - `
q
y
27214
Fide14 and Guaranty Insurance Underwriters, Inc.
Power of Attorney
No, 334
Know all men by these presents: That Fidefihr and emeraaq hisminswe Usdai writsm Inc— a Corporation organized and existing under laws of the State of
Wiscorsin and havig its principal dfce at the City of Baltimore. in the State of Maryland. does hereby constitute and appoint Tim Sampson,
Linda Attaway, Alan Henry and Doris Davis
of the city of Lubbock Stated Texas its true and IawM AttorneOH n-Fact. salt in their separate apt* if more than one is
"M' named above, to sign its name as surety so, and to execute. seat and admWedge any and all bonds, tsadertaldrngs, rrortraccs and ether written irutrtarhe hts b the natrre thereof
an behalf of the Company in its liminess of guaranteeing the fidelity of persons: Warantesing the petformwes of cartnas; and m mting or quararuesirq bonds and
undemkirgs n K fired or permitted in any actions or proceedings slowed by law. II
In Witness Whored. the said FAe ft and Gaaraaty laatranoe Undarwritem ho. has armed this iutrtsment to be staled with its corporate seal. dtny attested
rM by the s#w ues d its vice Presider[ ud A=b m swenry. the 1st joy of October A o.19 44
i
FAoft and Gaararrtr IV-
1 (Signed By .. _ ........��.
l
r (Signed) By ..... . ,:Assn............. .....
Secreta
SWeelMaryland 1 ��
SS: Cam,
eafamor. cur F `
Onthts 1st dayd October %AD.19 94,bdom CameJohnA.Haas.Kcsf)msidsntdFid. , apdewraap,
Iptiaace Uadaraanitars, Ire. and Thames J F Secretary of said both of whom I am Of at:gtstited who be' by me severely duly
sworn aid. that they, the aid Jots A. Him . Fi tgerald were ace President and r d the aid Fit l`ny uiiad Gsharaaq
kmaaee Uedarrvritem lone. the ' , n and which the foregoing l=, sf they each icrawthe sal of said"corporation that the
seal affixed so said Power ofAtsome � aueh corporate sal. tft% ifoted by enter of the of said coryomiorL end that dseylsigned their names
thereto by bike order as Vice President and Anistart Sea , of the Company.
My commissianexpim1he 11th ch 5.
Notary RDix:
r This Paver of Attorney is granted under sr4 l i of the following Resolutions adopted by the Board of D'reemrs of the Fidality sad Guaranty las•rsmi*
Undarwrieem Ire. on September 24.1992 1 }.
Masked. that in connection with the my end surety instance business d the company, all bands. uordertakings. carrier's end other ilsti eM relating so
said business may be signed. executed and teadmwtedged by persons or entities appointed as Attomey(s}� act ptsstam to Paver of Attorney. in lemordance with
these msokrtiom. Said Powers) ofAttorney for and on behalf of the company may and shah be executed in the name and on behalf of the Company.siAW by the chairman, or
the President. or an 6ronthre Yice Presid % ore Senior Yice President. arm Vice President or ann AssistantYrce Pnasidem, jointly with the Secretary or a�rh Assistant Secretary.
wderther respective designations. The signsture of rich eHi cars maybe engraved printed or YHhopraphed The sigran of each at the foregoing ofh�ers and theseal d the
PM Company may be affixed by facsimile so any Power of Attorney or to any mWa u relating thereto appoitrg Attomsyis}irfact for piposas only of exensiting in end attesting
bonds and undertakings aid other writings obligatory in the nattae thereof. and. bless st nenty evoked and stbject to arty Iknitations set forth ths64 any such Power of
Attonnay or cerdicate bearing rich facsimile signacre or facsimile seal than be valid and binding upon the Company and any audh paNer a axesited s Certified by such
facsimile signaere are facsimile sal shall be void aid bkx*q upon the Company with respect to arty a un bout dertaking to which itatta is validly
r Usek" That Attoiner(**-fmct shall have the power and allionty. artless si bsegtiertiy revoked arnit in anyelse. sWisaw the terms hmitaadons of the
Power of Attorney issued u them, to erewte and deliver an behalf of the Company and to mark the seat d the CompON to arty and ob bards and unddttal . . end other
writings obligatory in the nature tared. and art/ rich i stnment neared by a r h Attor*sFiirW shall be as biding upon the Company as lf signs bylan Executive Officer
and sealed and attested to by the Seaewy of the Company. j
t Thomas J. Fizgera Id. an Assistant Secretary of the Fidelity and Gairady fosaramce Usderwritarr, loe., do hereby "certify that the kg are true acerpts
from the Resolutions of the said Company as adopted by its Board of Directors on September24.1992 and that these Resolutions are in force and of
t the undersigned Assistant Secretary ofthe Fdality and Guaranty has emits Undarwriisnss, bee. do hereby artily that the foregoing P rwer of Attorney is in full
face and effeux and has not been ravaked I
!" in Testimony Whereof. I have harsim set my hand end the sea F and Gaararty Underwriters. loc on the Ilih
day of January .19 95
.......
^" 1951 Assistant secretary
FS n (9 sN
0000
II'
W
ri
STATUTORY PAYMENT BOND PURSUANT TO ARTICLE 5160
OF THE REVISED CIVIL STATUTES OF TEXAS
r AS AMENDED BY
ACTS OF THE 56TH LEGISLATURE, REGULAR SESSION,
1959
KNOW ALL MEN BY THESE PRESENTS, that 14r) , VC- (hereinafter called the Principal(s), as
Principal(s), and
Gad ejr TY i� tic Aizaw " • Z- y S c obwe E Uk)D&-xtA) 9.er,;;i�5, .Z;k-
(hereinafteer caW e S lur�et�(gi as S l s are held
aanndfirmly bound unto the City of Lubbock (hereinafter called the Obligee), in
the amount of Juu �6µ�r�n �,c ,ry ds nrrS Dollars 121.qQ lawful money of the United States for the
payment whereof; the said Principal and Surety bind themselves, and their heirs, administrators, executors, successors and assigns,
Jointly and severally, firmly by these presents.
WHEREAS,, the Principal has entered into a certain written contract with the Obligee, dated the ,Noy of WH
—1� cJ-MRy , 19 q 5 . to
M. M Of w]I �A
and said Principal under the law is required before commencing the work provided for in said contract to execute a bond in the
amount of said contract which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at
length herein.
NOW, THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if the said Principal shall pay all
claimants supplying labor and material to him or a subcontractor in the prosecution of the work provided for in said contract, then,
this obligation shall be void, otherwise to remain in full force and effect,
PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article 5160 of the Revised Civil Statutes
of Texas as amended by Acts of the 56th Legislature, Regular Session, 1959, and all liabilities on this bond shall be determined in
accordance with the provisions of said Article to the same extent as if it were copied at length herein.
IN WITNESS WHEREOF, the said Principal (s) and Surety (s) have signed and sealed this instrument this day of
7' rr_ A& Aky 1916,
t
46rtv ( u k Aarti-nifo-MNI-E WILUArnS t ()F-T-EgS cANSTf-UCTjW CO,,j
urL4. ''D kok rEk5, � • Principal
•By: v By
la"
7 (Tide) fiol?IJEY - za- 7Ae-'( (Title) �jQ Es j N-T�
BOND CHECK
BEST RATING
LICENSED IN T AS
DATI - . ,9
By:
(Title)
By:
r�
�j�Qn erscompany represents that it is duly qualified to do business in Texas, and hereby designates
—, gent resident in Lubbock County to whom any requisite notices may be delivered and on whom service
of process may had in matters arising out of such suretyship.
Surety NI�u�2r?� PS� .•.�•v c-
R ids `�,
(Tide)4rrOgAL y_ZO -7Acq-
Approved as to form:
City of Lubbock
r
By. -
ILV� Q-1
tty Attorney
R Note: If signed by an officer of the Surety Company there must be on file a certified extract from the by-laws showing that this
person has authority to sign such obligation. If signed by an Attorney in Fact, we must have copy of power of attorney for our tiles.
F
F
17.
1 7
9
0
I'
STATUTORY PERFORMANCE BOND PURSUANT TO ARTICLE: 5160
OF THE REVISED CIVIL STATUTES OF TEXAS AS
AMENDED BY
ACTS OF THE 56TH LEGISLATURE, REGULAR SESSION 1959
KNOW ALL MEN BY THESE PRESENTS, that e. (hereinafle called the Principal(s), as Principal(s), and
(hereinafter call theEl
k _ $�re�r A and firmly bound unto the City of Lubbock (hereinafter called the Obligee), in
the amount of,� %,11�t� - � _ C,ars Dollars ($I 4& lawful money of the United States for the
payment whereof, the said Principal and Surety bind themselves, and th�administrators, executors, successors and assigns,
jointly and severally, firmly by these presents.
WHEREAS, the Princi has entered into a certain written contract with the Obligee, dared tha�' of
E�A /V tt no , 19 to
rgil r, po Qm Ht✓EIJ y-F- A&ptynTAtc n ol) k tk 6tr
In t r31aa
and said principal under the law is required before commencing the work provided for in said contract to execute a bond in the
amount of said contract which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at
length herein.
NOW, THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if the said Principal shall faithfully
perform the work in accordance with the plans, specifications and contract documents, then this obligation shall be void; otherwise
to remain in full force and effect.
PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article, 5160 of the Revised Civil Statutes
rof Texas as amended by Acts of the 56th Legislature, regular session 1959, and all liabilities on this bond shall be determined in
r accordance with the provisions of said article to the same extent as if it were copied at length herein.
IN WITNESS WHEREOF, the said Principal (s) and Surety (s) have signed and sealed this instrument this r & of
e- P-,xP, `( 19_1L.
C 1 ae-I IT, k GIB Ai'1y SJ� Qf3/�}C�
SuretyPE2u7�2tTE►2s
* By:
(Title)Fp12.E o FI�cT
BOND CHECK
r BEST RATING __.�.'_
LICENSED IN TEXAS
DATEI . BY
V41LLIAOSS O PE TEKS (bK)STIeVaIM Co,:
Principal I
v
critic) —MESH DENT
By:
(Title)
By:
(Title)
t"`
r
surety company represents that it is duly qualified to do business in Teas, and hereby designates
� = �r.,,,V a e� resident in Lubbock County to whom any requisite notices may be delivered and on whom service of
�" Process maybe had in matters arising out of such suretyship.
i
r„ Sum' ld�rp�QlraS� .��-•
a
i . .By. \ ,
'Title)^
Approved as to Form
City bock
�i Attorn
�5' ey
Note: U signed by an officer of the Surety Company, there must be on file a certified extract from the by-&Ii showing that this
person has authority to sign such obligation. U signed by an Attorney in Fact, we must have copy of power of attorney for our files.
n
27232
Fdelity and Guaranty Insurance Underwriters, Inc.
Power of Attorney
.., No. 334
Know all men by these presents: That FidaRy rod Gummy Instance Uodrrwritars. Inc« a corporation organized and edstig inter the laws of the Slate of
Wisconsin and having its principal office at the City of Baltimore. Oita State of Maryland. does hereby constitute and appoint Tim. Sampson,
Linda Attaway,'Alan Henry and Doris Davis
�., el the City of Lubbock , State of Texas its tire and lawM AttornsoHn4act. each in their separate capacity i( more than one is
named above, to sign its sterna as surety to. and to macute, seal and acbmAedge any and all bonds. usdenakiugs, contracts and other written instnanents in the nause thereof
on behalf of the Cortnpary in its business of guarxtuk g the fidelity d persons; guaranteeing the pertatmmu of contraax and eaaiting orgunrarReeig bonds and
undertakings regxired ar permitted in any atxions or procsedngs slowed by law.
in Wow Whereof, the said Fidelity and Guaranty lasuraws Urdaawriters. lim has caused this inttrunent to be coaled with its corporate seal. duly attested
byte signsansofisV-cePresidentand/ssistantS mMary.this 1st day of October ,AA.t9 94 .
Fidelfty and eesranty r er Ueda raters. be.
(Signedt By -- ... . ......... ..... ..........
51
President
1951
State of Marytrad I (signed) By y ' ...
lssotertr Secretary rt
Ss:
eahimotr City
on this 1st day a October / A.D.19 9 4 , beam name Jahn A. Htas. Vice Ausidend Fid
elity delity sad G rera"
Nesuraree urdaewritate. Ire. and Thomas J. F "Secretary of said both of whom I ant, lituain acquainted, who being by me wmily duly
r� sworn said, that they. the said JoM A Fleas J. Fa�eraid were rce President and OXUcretarf of the aid FWality and Guaranty
lasrarer umbrwdlsrat, lr —the in and which the foregoing Power of � they each knewthe seal of said corporation: that the
seal affoxed to said Power of Attorney , i corporate seal, that v�s i�foxed by order d the Boo tl rectos of a id conpx wjm, and that they signed their names
duereto by Ilxe order as Vice President and Assistant Sens "" . d the Company..
R" My Commissioneopiresthe llth ch i'
.........
Notary Public
This Power of Attorney is granted rider at the following Resolutions adopted by the Board of Dieemrs of the Faddity and Guaranty bnrsaa
Underwritns. Ire. on September 2a, t992
Resented, that inconnection with the fidelity and surety insmncs business of the Compare, all bards, uncl rtakings. contracts arced other irmnnanents relating to
ISM said business may be signed. executeit and aekrwr ledged by persons ar amities appointed as AUwrw lsF *hct wimart to a Power of Attorney issued in accordance with
time rasoirttions. Said Power(s) of Attorney for and on behalf of the Company may and shall be sucuted in the tame and on behalf of the Company. either by the Chairman, or
the Presidem or an Executive Vice Presidert or a Senior Vice Presidert, or a Vice President or an Assistant Yuce Ptaskienu. icir* with the SeadW ar an Assistant Secretary.
ender their respactive designations. The agretue of such offers maybe engraved prated or kthographed. The signature of each of the foregoing officers and the seal of the
Company maybe affixed by facsimile to any Power of Attorney orto any certificate relating thereto appointing Attomey(s} n-W for pisposes only of exeat* in and attesting
bonds and udertakirgs and other writings obligatory in the natnrr thereof. and. unless a bsequenrcly revoked and subject w any limitations set forth therein, any wch Power of
Attorney or certificate bearing such faminile signature or facsimile seal tall be valid and b'ading upon the Company and any such power to a woad and rartdied by a h
facsimile signature and facsmile seal shall be valid and binding upon the Company with respect to any bord or t,dertakig to which it is validly attached.
Resebed. That Attorney(sWact stall have the power and authority. bless wbsequently revoked and in are sass. subject to the tent arid limitations of the
Power of Attorney issued to them, to execute and deliver on behalf of the Company and to attach the seal of the Company to arty and all bands and urdertakigs. and other
` wrings obligatory it the natre thereof, and are such i stnnent axearted by such Alton*sHn+= shall be as binding upon the Company as d signed by an Executive officer
and sealed and attested to by the Secretary of the Compare.
l Thomas J. Frngerakl an Assistant Secretary of the Fidelity aid Guaranty Irsarsaice Underwriters, ire., do hereby vanillin that the foregoing are true acerpts
from the Resolutions of the said Company as adopted by its Board of Directors on September 24,1992 and that two ResdWo ns are i i fuhl force and effect.
I, the undersigned Assistant Secretary of the Fidelity aid Guaranty lasararce Underwriters lac. do hereby cartify that the foregoing Power of Attorney is in full
force and affect and has not been revoked
In Testimony Whereof. I have hereunto set my hand and the sea F aid Guaranty Undawrif aL lie. onthis $ th
dayof February .1995
A4-- 7
2ryj`� ..........................
Assatant Secretary
1951
r� \ fS 81 (944)
L--� L- Lm L_� L... C_.; _ L---� L -- L::-� L ILL L- t-- LL� i.L LL: L--� t i -L:
CERTIFICATE OF INSURANCE
TO: CITY OF LUBBOCK
Lubbock, Texas
DATE: February 8, 1999
Typeof Bid #13129—Frankford
PrOjcct: Avenue Reconstruction
Williams & Peters Construction
THIS IS TO CERTIFY THATr a m any, T n r _ (Name and Address of Insured) is, at the date of this certificate, insured by
this Company with respect to the business operations hereinafter described, for the types of insurance and in accordance with the
provisions of the standard policies used by this Company, the further hereinafter described. Exceptions to standard policy noted
hereon.
TYPE OF INSURANCE
Policy No. Effective
Expires
Limits of Liability
Workmen's WC941038 9-1-94
9-1-95
Statuatory Workers' Compensation
Compensation
Employers' Liability—$500,000
Each Acc; $500,000
Each Employee.
Owner's PrOt"BD 2-8-95
2-8-96
Per Person
$1 .000.000 CSL
five or Conlin-
Per Occurrence
$
gent Liability
Property Damage
S
Contractor's
Per Person
$
Protective or
Per Occurrence
$
Contingent
Property Damage
S
Liability
071FJ1163983 6-6-94
6-6-95
Per Person
$1,000,000 CSL
Automobile
ence
$
Additional Insured to
City of
Lubbock p��c,Dege
Comprehensive 071GL823094 6-6-94 6-6-95
General LiabilityAdditional Insured to City of Lubbock $1,000.000 Occ.
$2,000,000 Agg.
Umbrella Liability 071XS24105960 6-6-94 6-6-95 $5,000,000
The foregoing Policies (do) cover all sub -contractors.
Locations Covered Frankf ord Avenue, 66th Street to 82nd Street, Lubbock, Tx
DESCRIPTION of Operations Covered
Reconstruction of roadway.
y,
The above. policies either in the body thereof or by appropriate endorsement provide that they may not be changed or canceled by the
insurer in less than the legal time required after the insured has received written notice of such change or cancellation, or in case
there is no legal requirement, in less than five days in advance of cancellation. Workers' Comp —Colonial Casualty Ins.
L L
FIVE COPIES OF THIS CERTIFICATE
MUST BE SENT TO THE OWNER.
as
All other —Aetna Casualty & Surety Cos.
(Name of Insurer)
By:
. az&!��2 Z4"W_��
Title President — Authorized Agent
COMMERCIAL EXCESS LIABILITY (UMBRELLA) INSURANCE
POLICY - SCHEDULE OF UNDERLYING INSURANCE
LIFE & CASUALTY
CASUALTY
AUTO LIABILITY
06/06/94
COLONIAL CASUALTY
LIABILITY
06/06/94
071 FJ 1163983 CCF
1,000,000.00 PER
06/06/95
TBD
500,000.00 PER ACCIDENT
500,000.00 PER EMPLOYEE
500,000.00 TOTAL POLICY LIMIT
06/06/95
D0013 (ED. 01.86)
PRINTED IN U.S.A.
COVERAGE PART NUMBER: COMMERCIAL GENERAL LIABILITY
THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY.
ADDITIONAL INSURED -OWNERS, LESSEES OR CONTRACTORS
(FORM B)
This endorsement modifies insurance provided under the following:
COMMERCIAL GENERAL LIABILITY COVERAGE PART
WHO IS AN INSURED (Section II) is amended to include as an insured the person or organization shown in the
Schedule, but only with respect to liability arising out of "your work" for that insured by or for you.
SCHEDULE
NAME OF PERSON OR ORGANIZATION:
CITY OF LUBBOCK
P.O. BOX 2000
LUBBOCK, TX 79457
CG2010 (ED. 11-85)
CAT. 768200
PRINTED IN U.S.A.
TE9901B
i
n ADDITIONAL INSURED
r
This endorsement modifies insurance provided under the following:
e� BUSINESS AUTO COVERAGE FORM
f GARAGE COVERAGE FORM
TRUCKERS COVERAGE FORM
This endorsement chances the policy effective on the inception date of the policy unless another date is indicated below:
Endorsement Effective
Policy Number
Named Insured
Countersigned by
(Authorized Representative)
The provisions and exclusions that apply to LIABILITY COVERAGE also apply to this endorsement.
C1W 4n LUBDOCZ
P.O. BOX 2000
LUBBOCK* i% 79457
r
(Enter Name and Address of Additional Insured.)
is an insured, but only with respect to legal responsibility for acts or omissions of a person for whom Liability Coverage is afforded
under this policy.
The additional insured is not required to pay for any premiums stated in the policy or earned from the policy. Any return premium
and any dividend, if applicable, declared by us shall be paid to you.
You are authorized to act for the additional insured in all matters pertaining to this insurance.
I We will mail the additional insured notice of any cancellation of this policy. If the cancellation is by us, we will give ten days notice to
the additional insured.
r' The additional insured will retain any right of recovery as a claimant under this policy.
711
OW
FORM TE 99 01B — ADDITIONAL INSURED
Texas Standard Automobile Endorsement
i" Prescribed March 18, 1992
1
L C- L_ L- L- L 1-
CONTRACT
STATE OF TEXAS
COUNTY OF LUBBOCK
r,.., THIS AGREEMENT, made and entered into this 26th day of Janu&a 1995, by and between the City of Lubbock, County
of Lubbock, State of Texas, acting by and through David R. Langston, Mayor, thereunto authorized to do so, hereinafter referred to
as OWNER, and WILLIAMS & PETERS CONSTRUCTION CO.. INC. of the Citybboc of County of Labbock and the
State of Tein, hereinafter termed CONTRACTOR
WITNESSETH: That for and in consideration of the payments and agreements hereinafter mentioned, to be made and performed
by the OWNER and under the conditions expressed in the bond bearing even date herewith (if any) the CONTRACTOR hereby
agrees with OWNER to commence and complete the construction of certain improvements described as follows:
BID #13129 - FRANKFORD AVENUE RECONSTRUCTION 66TH STREET TO 82ND STREET FOR $1,069,189.80
j and all extra work in connection therewith, under the terms as stated in the contract documents and at his (or their) own proper cost
and expense to furnish all materials, supplies, machinery, equipment, tools, superintendence, labor, insurance and other accessories
and services necessary to complete the said construction in accordance with the contract documents as defined in the General
Condition of Agreement.
The CONTRACTOR hereby agrees to commence work within ten days after the date written notice to do so shall have been given
to him and to substantially complete same within the time specified in the contract documents.
The OWNER agrees to pay the CONTRACTOR in current funds for the performance of the contract in accordance with the
proposal submitted therefore, subject to additions and deductions, as provided in the contract documents and to make payment on
account thereof as provided therein.
IN WITNESS WBEREOF, the parties to these presents have executed this agreement in Lubbock, Lubbock County, Texas in the
year and day first above written.
• • • V6 • •'
F r.. 01JA
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t.
CONTRACTOR
WILLIAMS & PETERS CONSTRUCTION CO., INC.
TITLE: IF29 Es 1 p E ti -r
COMPLETE ADDRESS:
P.O. Box 3907
Lubbock. Texas 79452
LL L- LV L- L` : L✓ L-- L�:: L- � L- L_m� L-. C _ U U- t- I---- L- L
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;I TKINKSIDIN V romfolli #:I n I
Whenever the word Owner, or the expression Party of the First Part, or First Party, are used in this contract, it shall be
understood as referring to the City of Lubbock, Texas.
2. CONTRACTOR
Whenever the word Contractor, or the expression Party of the Second Part, or Second Party, is used, it shall be understood
to mean the person, persons, co -partnership or corporation, to -wit: WILLUMS & PETERS CONSTRUCITON CO..
NC. who has agreed to perform the work embraced in this contract, or to his or their legal representative.
Whenever the word Owner's Representative or representative is used in this contract, it shall be understood as referring to
LARRY HERTEL. CITY ENGINEERCity of Lubbock, under whose supervision these contract documents, including the
plans and specifications, were prepared, and who will inspect constructions; or to such other representative, supervisor, or
inspector as may be authorized by said Owner to act in any particular under this agreement Engineers, supervisor or
inspectors will act for the Owner under the direction of Owner's Representative, but shall not directly supervise the
Contractor or men acting in behalf of the Contractor.
The contract's documents shall consist of the Notice to Bidders, General Instructions to Bidders, Proposal, Signed
Agreement, Statutory Bonds (if required), General Conditions of the Agreement, Special Conditions of the Agreement (if
any), Specifications, Plans, Insurance Certificate, and all other documents made available to Bidder for his inspection in
accordance with the Notice to Bidders.
S. INTERPRETATION OF PHRASES
Whenever the words "Directed," "Permitted," "Designated," "Rogdred," "Considered Necessary," "Prescribed," or words of
t 1 like import are used, it shall be understood that the direction, requirement, permission, order, designation or prescription of
the Owner's Representative is intended; and similarly, the words "Approved," "Acceptable," "Satisfactory," or words of like
import shall mean approved by or acceptable or satisfactory to the Owner's Representative.
6. SUBCONTRACTOR
The term Subcontractor, as employed herein, includes only those having a direct contract with the Contractor for
performance of work on the project contemplated by these contract documents. Owner shall have no responsibility to any
Subcontractor employed by Contractor for performance of work on the project contemplated by these contract documents,
but said Subcontractors will look exclusively to Contractor for any payments due Subcontractor.
,li jy • •I
Written notice shall be deemed to have been duly served if delivered in person to the individual or to a member of the firm
or to an oM= of the corporation for whom it is intended, or if delivered at or sent certified mail to the last business address
known to him who gives the notice.
8. CORK
Unless otherwise stipulated, the Contractor shall provide and pay for all materials, supplies, machinery, equipment, tools,
superintendence, labor, insurance, and all water, light, power, fuel, transportation and all other facilities necessary for the
execution and completion of the work covered by the contract documents. Unless otherwise specified, all materials shall be new and both workmanship and materials shall be of a good quality. The Contractor shall, if required, furnish satisfactory
evidence as to the kind and quality of materials. Materials or work described in words which so applied have well known,
technical or trade meaning shall be held to refer such recognized standards.
All work shall be done and all materials furnished in strict conformity with the contract documents.
9. SUBSTANTIALLY COMPLETED The term "Substantially Completed" is meant that the structure or project contemplated by the contract documents has been
made suitable for use or occupancy or the facility is in a condition to serve its intended purpose, but still may require minor
miscellaneous work and adjustment.
10. LAYOUT
Except as specifically provided herein, the Contractor shall be responsible for laying out all work and shall accomplish this
work in a manner acceptable to the Owner's Representative. The Owner's Representative will check the Contractor's layout
of all major structures and any other layout work done by the Contractor at Contractor's request, but this check does not --
relieve the Contractor of the responsibility of correctly locating all work in accordance with the Plans and Specifications.
11. KEEPING OF PLANS AND SPECIFICATIONS ACCESSIBLE
The Contractor shall be furnished with one copies of all Plans, Profiles and Specifications without expense to him and he
shall keep one copy of same consistently accessible on the job site.
12. RIGHT OF ENTRY
The Owner's Representative may make periodic visits to the site to observe the progress of quality of the executed work and
to determine, in general, if the work is proceeding in accordance with the contract documents. He will not be required to
make exhaustive or continuous onsite inspections to check the quality or quantity of the work, nor will he be responsible for
the construction means, methods, techniques, sequences or procedures,'or the safety precautions incident thereto. His
efforts will be directed towards providing assurances for the Owner that the completed project will conform to the
requirements of the contract documents, but he will not be responsible for the Contractor's failure to perform the work in
accordance with the Contract Documents. On the basis of his onsite observations, he will keep the Owner informed of the
progress of the work and will endeavor to guard the Owner against defects and deficiencies in the work of the Contractor.
13. LINES AND GRADES
All lines and grades shall be furnished by the Owner's Representative whenever necessary for the commencement of the
work contemplated by these contract documents or the completion of the work contemplated by these contract documents.
Whenever necessary, Contractor shall suspend his work in order to permit Owner's Representative to comply with this
requirement, but such suspension will be as brief as practical and Contractor shall be allowed no extra compensation
therefore. The Contractor shall give the Owner's Representative ample notice of the time and place where lines and grades
will be needed. All stakes, marks, etc., shall be carefully preserved by the Contractor, and in case of careless destruction or
removal by him, his Subcontractors, or his employees, such stakes, marks, etc., shall be replaced by the Owner's
Representative at Contractor's expense.
A
14. OWNER'S REPRESErTI'ATIWS AUTHORITY AND DUTY
Unless otherwise specified, it is mutually agreed between the parties to this Agreement that the Owner's Representative
shall review all work included herein. He has the authority to stop the work whenever such stoppage may be necessary to
insure the proper execution of the contract. In order to permit delays and disputes and to discourage litigation, it is further
agreed that the Owner's Representative shall, in all cases, determine the amounts and quantities of the several kinds of work
which are to be paid for under this contract. He shall determine all questions in relation to said work and the construction
thereof, and shall, in all cases, decide every question which may arise relative to the execution of this contract on the part of
said Contractor. The Owner's R.epresentatives's estimates and findings shall be conditions precedent to the right of the
parties hereto to arbitration or to any action on the contract, and to any rights of the Contractor to receive any money under
this contract; provided, however, that should Owner's Representative render any decision or give any direction, which in the
opinion of either party hereto, is not in accordance with the meaning and intent of this contract, tither party may file with
said Owner's Representative within 30 days his written objection to the decision or direction so rendered, and by such action
may reserve the right to submit the questions so raised to arbitration as hereinafter provided. It is the intent of this
Agreement that there shall be no delay in the execution of the worts, therefore, written dwisions or direction of the Owner's
Representative as rendered shall be promptly carried out, and any claim arising therefrom shall be thereafter adjusted to
arbitration as hereinafter provided
The Owner's Representative shall, within a reasonable time, render and deliver to both the Owner and the Contractor a
written decision on all claims of the parties hereto and on all questions which may arise relative to the execution of the work
or the interpretation of the contract, specifications and plans. Should the Owner's Representative fail to make such decision
within a reasonable time, an appeal to arbitration may be taken as if his decision had bey rendered against the party
., appealing.
15. SUPERINTENDENCE AND INSPECTION
It is agreed by the Contractor that the Owner's Representative shall be and is hereby authorized to appoint from time to time
JJsuch subordinate engineers, supervisors, or inspectors as the said Owner's Representative may deem proper to inspect the
materials furnished and the work done under this Agreement, and to see that said material is furnished and said work is
done in accordance with the specifications therefore. The Contractor shall furnish all reasonable aid and assistance
1 required by the subordinate engineers, supervisors or inspectors for the proper inspection and examination of the work. The
Contractor shall regard and obey the directions and instructions of any subordinate engineers, supervisors or inspectors so
appointed, when such directions and instructions are consistent with the obligations of this Agreement and accompanying
plans and specifications provided, however, should the Contractor object to any orders by any subordinate engineer,
supervisor or inspector, the Contractor may within six (6) days make written appeal to the Owner's Representative for his
decision.
The Contractor shall give personal attention to the faithful prosecution and completion of this contract and shall keep on the
work, during its progress, a competent superintendent and any necessary assistants, all satisfactory to Owner's
Representative. The superintendent shall represent the Contractor in his absence and all directions given to him shall be
binding as if given to the Contractor. Adequate supervision by competent and reasonable representatives of the Contractor
is essential to the proper performance of the work and lack of such supervision shall be grounds for suspending operations
of the Contractor.
The work, from its commencement to completion, shall be under the exclusive charge and control of the Contractor and all
risk in connection therewith shall be borne by the Contractor.
The Owner or Owner's Representatives will not be responsible for the acts or omissions of the Contractor, or any
subcontractors, or any of his agents or employees, or any other persons performing any of the work.
r
17. CONTRACTOR'S UNDERSTANDING
It is understood and agreed that the Contractor has, by careful examination, satisfied himself as to the nature and location of
the work, the confirmation of the ground,, the character, quality and quantity of materials to be encountered, the character of
equipment and facilities needed preliminary to and during the prosecution of the work, and the general and local conditions,
and all other matters which in any way effect the work under this contract. No verbal agreement or conversation with any
officer, agent, or employee of the Owner, either before or after the execution of this contract, shall effect or modify any of
the terms or obligations herein contained.
18. CHARACTER OF WORKMEN The Contractor agrees to employ only orderly and competent men, skillful in the performance in the type of work required
under this contract, to do the work; and agrees that whenever the Owner's Representative shall inform him in writing that any man or men on the work, arc, in his opinion, incompetent, unfaithful, or disorderly, such man or men shall be
discharged from the work and shall not again be employed on the work without the Owner's Representative's written
consent.
19. CONSTRUCTION PLANT
The Contractor shall provide all labor, tools, equipment, machinery and materials necessary in the prosecution and
completion of this contract where it is not otherwise specifically provided that Owner shall furnish same, and it is also
understood that Owner shall not be held responsible for the care, preservation, conservation, or protection of any materials,
tools, equipment or machinery or any part of the work until it is finally completed and accepted
The building of structures for the housing of men or equipment will be permitted only at such places as the Owner's
Representative shall direct, and the sanitary conditions of the grounds in or about such structure shall at all times be
maintained in a manner satisfactory to the Owner's Representative.
20. !SANITATION
Necessary sanitary conveniences for the use of laborers on the work site, properly secluded from public observation, shall be
constructed and maintained by the Contractor in such manner and at such points as shall be approved by the Owner's
Representative and their use shall be strictly enforced _
21. OBSERVATION AND TESTING
The Owner or Owner's Representative shall have the right at all reasonable times to observe and test the work Contractor
shall make necessary arrangements and provide proper facilities and access for such observation and testing at any location
wherever work is in preparation or progress. Contractor shall ascertain the scope of any observation which may be
contemplated by Owner or Owner's Representative and shall give ample notice as to the time each part of the work will be
ready for such observation. Owner or Owner's Representative may reject any work found to be defective or not in
accordance with the contract documents, regardless of the stage of its completion or the time or place of discovery of such
errors and regardless of whether Owner's Observer has previously accepted the work through oversight or otherwise. If any
work should be covered without approval or consent of the Owner, it must, if requested by Owner or Owner's
Representative, be uncovered for examination at Contractor's expense. In the event that any part of the work is being
fabricated or manufactured at a location where it is not convenient for Owner or Owner's Representative to make
observations of such work or require testing of said work, then m such event Owner or Owner's Representative may require
Contractor to furnish Owner or Owner's Representative certificates of inspection, testing or approval made by persons
competent to perform such tasks at the location where that part of the work is being manufactured or fabricated All such
tests will be m accordance with the methods prescribed by the American Society for Testing and Materials or such other
applicable organization as may be required by law or the contract documents.
i I i
If work which is to be ' or roved is covered without written approval or consent of the
any required inspected, tested, approved up
Owner or Owner's Representative, it must, if requested by the Owner or Owner's Representative, be uncovered for
observation and testing at the Contractor's expense. The cost of all such inspections, tests and approvals shall be borne by
the Contractor unless otherwise provided herein. Any work which fails to meet the requirements of any such tests,
inspections or approval, and any work which meets the requirements of any such tests or approval but does not meet the
requirements of the contract documents shall be considered defective. Such defective work shall be corrected at the
Contractor's expense.
Neither observations by the Owner or Owner's Representative, nor inspections, tests, or approvals made by Owner, Owner's
Representative, or other persons authorized under this agreement to make such inspections, tests, or approvals shall relieve
the Contractor from his obligation to perform the work in accordance with the requirements of the contract documents.
22. DEFECTS AND THEIR REMEDIES
It is further agreed that if the work or any part thereof, or any material brought on the sita° of the work for use in the work or
selected for the same, shall be deemed by the Owner or Owners' Representative as unsuitable or not in conformity with
plans, specification and contract documents, the Contractor shall, after receipt of written notice thereof from the Owner's
Representative, forthwith remove such material and rebuild or otherwise remedy such work so that it shall be in full
accordance with this oontract. It is further agreed that any remedial action contemplated as hereimbove set forth shall be at
Contractor's expense.
23. CHANGES AND ALTERATIONS
The Contractor further agrees that the Owner may make such changes and alterations as the Owner may see fit, in the line,
grade, form dimensions, plans or or materials for the work herein contemplated, or any part thereof, either before or after
the beginning of the construction, without affecting the validity of this contract and the accompanying bond.
If such changes or alterations diminish the quantity of the work to be done, they shall not constitute the basis for a claim for
damages, or anticipated profits on the work that may be dispensed with. H they inCreasc the amount of work, and the
increased work can fairly be classified under the specifications, such increase shall be paid according to the quantity
actually done and at the unit price established for such work under this contract; otherwise such additional work shall be
paid for as provided under Extra Work In case the Owner shall make such changes or alterations as shall make useless any
work already done or material already furnished or used in said work, then the Owner sheall recompense the Contractor for
any material or labor so used, and for any actual loss occasioned by such change, due to actual expenses incurred in
preparation for the work as originally planned.
24. EXTRA WORK
The term "extra work" as used in this contract shall be understood to mean and include all work that may be required by the
�+ Owner or Owner's Representative to be done by the Contractor to accomplish any change, alteration or addition to the work
as shown on the plans and specifications or contract documents and not covered by Contractor's proposal, except as
provided under Changes and Alterations herein.
It is agreed that the Contractor shall perform all extra work under the direction of the Owner's Representative when
presented with a written work order signed by the Owner's Representative; subject, however, to the right of the Contractor
to require written confirmation of such extra work order by the Owner. It is also agreed that the compensation to be paid to
the Contractor for performing said extra work shall be determined by the following methods:
Method (A) - By agreed unit prices; or
Method (B) By agreed lump sum; or
Method (C) - If neither Method (A) or Method (B) be agreed upon before the extra work is commenced, then
the Contractor shall be paid the actual field cost of the work, plus fifteen (15%) per cent.
In the event said extra work be performed and paid for under Method (C), then the provisions of this paragraph shall apply
and the "actual field cost" is hereby defined to include the cost of all workmen, such as foremen, timekeepers, mechanics
and laborers, materials, supplies, teams, trucks, rentals on machinery and equipment, for the time actually employed or used
on such extra work, plus actual transportation charges necessarily incurred, together with all expenses incurred directly on
account of such extra work, including Social Security, Old Age Benefits, Maintenance Bonds, Public Liability and Property
Damage and Workmen's Compensation and all other insurances as may be required by law or ordinances or directed by the
Owner or Owner's Representative, or by them agreed to. Owner's Representative may direct the form in which accounts of
the actual field cost shall be kept and records of these accounts shall be made available to the Owner's Representative.. The
Owner's Representative may also specify in writing, before the work commences, the method of doing the work and the type
and kind of machinery and equipment to be used, otherwise, these matters shall be determined by the Contractor. Unless
otherwise agreed upon, the prices for the use of machinery and equipment shall be determined by using 100%, unless
otherwise specified, of the latest Schedule of Equipment and Ownership Expenses adopted by the Associated General
Contractors of America. Where practical, the terms and prices for the use of machinery and equipment shall be
incorporated in the written extra work order. The fifteen percent (15%) of the actual field cost to be paid to Contractor shall
cover and compensate him for his profit, overhead, general superintendence and field office expense, and all other elements
of cost and expense not embraced within the actual field cost as herein defined, save that where the Contractor's Camp or
Field Office must be maintained primarily on account of such Extra Work, then the cost to maintain and operate the same
shall be included in the "actual field cost"
No claim for extra work of any kind will be allowed unless ordered in writing by Owner's Representative. In case any
orders or instructions appear to the Contractor to involve extra work for which he should receive compensation or an
adjustment in the construction time, he shall make written request to the Owner's Representative for a written order
authorizing such extra work Should a difference of opinion arise as to what does or does not constitute extra work or as to
the payment therefore, and the Owner's Representative insists upon its performance, the Contractor shall proceed with the
work after making written request for written order and shall keep adequate and accurate account of the actual field cost
thereat, as provided under Method (C). The Contractor will thereby preserve the right to submit the matter of payment to
arbitration as herein below provided.
25. DISCREPANCIES AND OMISSIONS
It is further agreed that it is the intent of this contract that all work described in the proposal, the specifications, plans and
other contract documents, is to be done for the prices quoted by the Contractor and that such price shall include all
appurtenances necessary to complete the work in accordance with the intent of these contract documents as interpreted by
Owner's Representative. If the Contractor finds any discrepancies or omissions in these plans, specifications, or contract
documents, he should notify the Owners' Representative and obtain a clarification before the bids are received, and if no
such request is received by the Owner's Representative prior to the opening of bids, then it shall be considered that the
Contractor fully understands the work to be included and has provided sufficient sums in his proposal to complete the work
in accordance with these plans and specifications. It is further understood that any request for clarification must be
submitted no later than five days prior to the opening of bids.
26. RIGHT OF OWNER TO MODIFY METHODS AND EQUIPMENT
If at any time the methods or equipment used by the Contractor are found to be inadequate to secure the quality of work
with the rate of progress required under this contract, the Owner or Owner's Representative may order the Contractor in
writing to increase their safety or improve their character and efficiency and the Contractor shall comply with such order.
If, at any time, the working force of the Contractor is inadequate for securing the progress herein specified, the Contractor
shall, if so ordered in writing, increase his force or equipment, or both, to such an extent as to give reasonable assurance of
compliance with the schedule of progress.
The Contractor shall take out and procure a policy or policies of Workmen's Compensation Insurance with an insurance
company licensed to transact business in the State of Texas, which policy shall comply with the Workmen's Compensation
laws of the State of Texas. The Contractor shall at all times exercise reasonable precaution for the safety of employees and
others on or near the work and shall comply with all applicable provisions of federal, state and municipal laws and building
and construction codes. All machinery and equipment and other physical hazards shall be guarded in accordance with the
"Manual of Accident Prevention in Construction" of Associated General Contractors of America, except where incompatible
with federal, state or municipal laws or regulations. The Contractor, his sureties and insurance carriers shall defend,
indemnify and save harmless the Owner and all of its officers, agents and employees from all suits, actions, or claims of any
character whatsoever, brought for or on account of any injuries or damages received or sustained by any person or persons
or property, on account of any negligent act or fault of the Contractor or any subcontractor, their agents or employees, in the
execution and supervision of said contract, and the project which is the subject matter of this contract, on account of the
failure of Contractor or any subcontractor to provide necessary barricades, warning lights, or signs and will be required to
pay any judgment with costs which may be obtained against the Owner or any of its officers, agents, or employees including
attorney's fees.
The safety precautions taken shall be the sole responsibility of the Contractor, in his sole discretion as an Independent
Contractor, inclusion of this paragraph in the Agreement, as well as any notice which may be given by the Owners or the
Owner's Representative concerning omissions under this paragraph as the work progresses, are intended as reminders to the
Contractor of his duty and shall not be construed as any assumption of duty to supervise safety precautions by either the
Contractor or any of his subcontractors.
The Contractor shall procure and carry at his sole cost and expense through the life of ties contract, insurance protection as
hereinafter specified. Coverage in excess of that specified herein also shall be acceptable. Such insurance shall be carried
with an insurance company authorized to transact business in the State of Texas and shall cover all operations in connection
with this contract, whether performed by the Contractor or a subcontractor, or separate policies shall be provided covering
the operation of each subcontractor. A certificate of insurance specifying each and all coverages shall be submitted prior to
contract execution.
A Comprehensive General Liability Insurance
The contractor shall have Comprehensive General Liability Insurance with limits of $1,000,000.00 Combined
Single Limit m the aggregate and per occurrence to include:
Premises and Operations
Explosion & Collapse Hazard
Underground Damage Hazard
Products & Completed Operations Hazard
Contractual Liability
Independent Contractors Coverage
Personal Injury (with exclusion "e" waived)
f ' The City is to be named as an additional insured on this policy for this specific job, and copy of the endorsement
doing so is to be attached to the Certificate of Insurance.
B. Owner's Protective or Contingent Public Liability Insurance and Property Damage Liability Insurance.
The Contractor shall obtain an Owner's Protective or Contingent Public Liability Insurance policy naming the City
of Lubbock as insured and the amount of such policy shall be as follows:
For bodily injuries, including accidental death and or property damage, $ 1,000,000.00 Combined Single Limit.
This policy shall be submitted prior to contract execution. —
C. Comprehensive Automobile Liability Insurance
The Contractor shall have Comprehensive Automobile Liability Insurance with limits of not less than;
Bodily Injury/Property Damage, $1.000.000.00 Combined Single Limit,
to include all owned and nonowned cars including: Employers Nonownership Liability Hired and Nonowned
Vehicles. The City is to be named as an additional insured on this policy for this specific job and copy of the
endorsement doing so is to be attached to the Certificate of Insurance.
D. Builder's Risk Insurance
The Contractor shall obtain a Builder's Risk policy in the amount of 0% of the total contract price (1001/a of
potential loss) naming the City of Lubbock as insured.
E. Umbrella Liability Insurance
The Contractor shall have Umbrella Liability Insurance in the amount of $2.000.000 on all contracts with coverage
to correspond with Comprehensive General Liability and Comprehensive Automobile Liability coverages.
F. Worker's Compensation and Employers Liability Insurance
Worker's Compensation Insurance covering all employees whether employed by the Contractor or any
Subcontractor on the job with Employers Liability of at least $ 1,000,000.00
1. Definitions:
Certificate of coverage ("certificate") - A copy of a certificate of insurance, a certificate of authority to self -
insure issued by the commission, or a coverage agreement (1WCC-81, TWCC-82, TWCC-83, or 7WCC-
84), showing statutory workers' compensation insurance coverage for the person's or entity's employees
providing services on a project, for the duration of the project
Duration of the project - includes the time from the beginning of the work on the project until the
contractor's/person's work on the project has been completed and accepted by the governmental entity.
Persons providing services on the project ("subcontractor" in 0406.096) - includes all persons or entities
performing all or part of the services the contractor has undertaken to perform on the project, regardless of
whether that person contracted directly with the contractor and regardless of whether that person has
employees. This includes, without limitation, independent contractors, subcontractors, leasing companies,
motor carriers, owner -operators, employees of any such entity, or employees of any entity which furnishes
persons to provide services on the project "Services" include, without limitation, providing, hauling, or
delivering equipment or materials, or providing labor, transportation, or other service related to a project _
"Services" does not include activities unrelated to the project, such as fooft cverage vendors, office supply
deliveries, and delivery of portable toilets.
2. The contractor shall provide coverage, based on proper reporting of classification codes and payroll
amounts and filing of any coverage agreements, which meets the statutory requirements of Texas Labor
Code, Section 401.011(44) for all employees of the contractor providing services on the project, for the
duration of the project -
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f- 3. The Contractor must provide a certificate of coverage to the governmental entity prior to being awarded
the contract.
4. If the coverage period shown on the contractor's current certificate of coverage ends during the duration of
the project, the contractor must, prior to the end of the coverage period, file a new certificate of coverage
with the governmental entity showing that coverage has been extended.
5. The contractor shall obtain from each person providing services on the project, and provide to the
governmental entity:
(a) a certificate of coverage, prior to that person beginning work on the project, so the governmental
entity will have on file certificates of coverage showing coverage for all persons providing
services on the project; and
(b) no later than seven days after receipt by the contractor, a new certificate of coverage showing
extension of coverage, if the coverage period shown on the current certificate of coverage ends
during the duration of the project.
6 The contractor shall retain all required certificates of coverage for -the duration of the project and for one
year thereafter.
7. The contractor shall notify the governmental entity in writing by certified mail or personal delivery,
within 10 days after the contractor knew or should have known, of any change that materially affects the
provision of coverage of any person providing services on the project.
8. The contractor shall post on each project site a notice, in the text, form and manner prescribed by the
Texas Workers' Compensation Commission, informing all persons providing services on the project that
they are required to be covered, and stating how a person may verify coverage and report lack of coverage.
9. The contractor shall oontractually require each person with whom it contracts to provide services on the
project, to:
(a) provide coverage, based on proper reporting of classification codes and payroll amounts and
r of coverage agreement statutory requirements
� filing any g gree ents, which meets the statuto of Texas Labor Code,
Section 401.011(44) for all of its employees providing services on the project, for the duration of
the project;
(b) provide to the contractor, prior to that person beginning work on the project, a certificate of
coverage showing that coverage is being provided for all employees of the person providing
services on the project, for the duration of the pmject;
(c) . provide the contractor, prior to the end of the coverage period, a new certificate of coverage
showing extension of coverage, if the coverage period shown on the current certificate of
coverage ends during the duration of the project;
(d) obtain from each other person with whom it contracts, and provide to the contractor:
(1) a certificate of coverage, prior to the other person beginning work on the project; and
(2) a new certificate of coverage showing extension of coverage, prior to the end of the
coverage period, if the coverage period shown on the current certificate of coverage ends
during the duration of the project;
r" (e) retain all required certificates of coverage on file for the duration of the project and for one year
. , thereafter,
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(f) notify the governmental entity in writing by certified mail or personal delivery, within 10 days
after the person knew or should have known, of any change that materially affects the provision
of coverage of any person providing services on the project; and —
(g) contractually require each person with whom it contracts to perform as required by paragraphs
(1) - (7), with the certificates of coverage to be provided to the person for whom they are _
providing services.
10. By signing this contract or providing or causing to be provided a certificate of coverage, the contractor is
representing to the governmental entity that all employees of the contractor who will provide services on
the project will be covered by wwkers's compensation coverage for the duration of the project, that the
coverage will be based on proper reporting of classification codes and payroll amounts, and that all
coverage agreements will be filed with the appropriate insurance carrier or, in the case of a self -insured,
with the commission's Division of Self -Insurance Regulation. Providing Use or misleading information
may subject the contractor to administrative penalties, criminal penalties, civil penalties, or other civil
actions.
11. The contractor's failure to comply with any of these provisions is a breach of contract by the contractor
which entitles the governmental entity to declare the contract void if the contractor does not remedy the
breach within ten days after receipt of notice of breach from the governmental entity.
G. Proof of Coverage
Before work on this contract is commenced, each Contractor and subcontractor shall submit to the Owner for
approval five Certificates of Insurance covering each insurance policy carried and offered as evidence of
compliance with the above insurance requirements, signed by an authorized representative of the insurance
company setting forth:
(1) The name and address of the insured.
(2) The location of the operations to which the insurance applies.
(3) The name of the policy and type or types of insurance in force thereunder on the date borne by such
certificate.
(4) The expiration date of the policy and the limit or limits of liability thereunder on the date borne by such
certificate.
(5) A provision that the policy may be canceled only by mailing written notice to the named insured at the
address shown in the bid specifications.
(6) A provision that written notice shall be given to the City ten days prior to any change in or cancellation of
the policies shown on the certificate.
() The certificate or certificates shall be on the form (or identical copies thereof) contained in the job
specifications. No substitute of nor amendment thereto will be acceptable.
(9) If policy limits are paid, new policy must be secured for new coverage to complete project.
(9) A Contractor shall: —
(a) provide coverage for its employees providing services on a project, for the duration of the project
based on proper reporting of classification codes and payroll amounts and filling of any coverage
agreements;
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(b) provide a certificate of coverage showing workers' compensation coverage to the governmental
entity prior to beginning work on the project;
(c) provide the governmental entity, prior to the end of the coverage period, a new certificate of
coverage showing extension of coverage, if the coverage period shown on the contractor's current
certificate of coverage ends during the duration of the project;
(d) obtain from each person providing services on a project, and provide to the governmental entity:
(i) a certificate of coverage, prior to that person beginning work on the project, so the
governmental entity will have on file certifies of coverage showing coverage for all
persons providing services on the project; and -
(ii) no later than seven days after receipt by the contractor, a new certificate of coverage
showing extension of coverage, if the coverage period shown on the current certificate of
coverage ends during the duration of the project;
(e) retain all required certificates of coverage on file for the duration of the project and for one year
thereafter;
(f) notify the governmental entity in writing by certified mail or personal delivery, within 10 days
after the contractor knew or should have known, of any change that materially affects the
provision of coverage of any person providing services on the project;
(g) post a notice on each project site informing all persons providing services on the project that they
are required to be covered, and stating how a person may verify current coverage and report
failure to provide coverage. This notice does not satisfy other posting requirements imposed by
the Act or other commission rules. This notice must be printed in at least 19 point normal type,
and shall be in both English and Spanish and any other language common to the worker
population. The text for the notices shall be the following text provided by the commission on
the sample notice, without any additional words or changes:
REQUIRED WORKERS' COMPENS477ON COVERAGE
"The law requires that each person working on this site or providing services related to this
construction projed must be covered by workers' compensation insurance. This includes
persons providing, hauling, or delivering equipment and materials, or provi&vg labor or
transportation or other service related to the project, regardless of the identity of their
employer or status as an employee."
"Call the Texas Workers' Compensation Commission at 5l2/440-3789 to receive information
on the legal requirement for coverage, to verify w*ether your employer has provided the
required coverage, or to report an employer's fallure to provide coverage." and
(h) contractually require each person with whom it contracts to provide services on a project, to:
(i) provide coverage based on proper reporting of classification codes and payroll amounts
and filing of any coverage agreements for all of its employees providing services on the
project, for the duration of the project;
(ii) provide a certificate of coverage to the contractor prior to that person beginning work on
the project;
(iii) include in all contracts to provide services on the project the language in subsection (e)
(3) of this rule;
29.
30.
(iv) provide the contractor, prior to the end of the coverage period, a new certificate of
coverage showing extension of coverage, if the coverage period shown on the current
certificate of coverage ends during the duration of the project;
(v) obtain from each other person with whom it contracts, and provide to the contractor:
(1) a certificate of coverage, prior to the other person beginning work on the
project; and
(2) prior to the end of the coverage period, a new certificate of coverage showing
extension of the coverage period, if the coverage period shown on the current
certificate of coverage ends during the duration of the project;
(vi) retain all required certificates of coverage on file for the duration of the project and for
one year thereafter,
(vii) notify the governmental entity in writing by certified mail or personal delivery, within
10 days after the person knew or should have known, of any change that materially
affects the provision of coverage of any person providing services on the project; and
(vin) contractually require each other person with whom it contracts, to perform as required
by paragraphs (A) - (H), with the certificate of coverage to be provided to the person for
whom they are providing services.
DISABLED EMPLOYEES
Contractors having more than 15 employees agree to comply with the Americans with Disabilities Act of 1990, and agree
not to discriminate against a qualified individual with a disability because of the disability of such individual in regard to
job application procedures, the hiring, advancement, or discharge of employees, employee compensation, job training, and
other terms, conditions, and priviliges of employment.
PROTECTION AGAINST CLAIMS OF SUBCONTRACTORS, LABORERS, MATERIALMEN, AND FURNISHERS OF
MACHINERY, EQUIPMENT AND SUPPLIES
The Contractor agrees that he will indemnify and save the Owner harmless from all claims growing out of any demands of
subcontractors, laborers, workmen, mechanics, materialmen and furnishers of machinery and parts thereo4 equipment,
power tools, all suppliers, including commissary, incurred in the furtherance of the performance of this contract. When
Owner so desires, the Contractor shall furnish satisfactory evidence that all obligations of the nature hereinabove designated
have been paid, discharged or waived
If during the progress of the work, Contractor shall allow any indebtedness to accrue for work famished by any of those
designated in the preceding paragraph and shall fail to pay and discharge any such indebtedness within five (5) days after
demand is made, then Owner may, during the period for which such indebtedness shall remain unpaid, withhold from the
unpaid portion of this contract, a sum equal to the amount of such unpaid indebtedness or may apply the sum so withheld to
discharge any such indebtedness.
Any and all communications between any party under this paragraph must be in writing.
31. PROTECTION AGAINST ROYALTIES OR PATENT INVENTION
The contractor shall pay all royalties and license fees, and shall provide for the use of any design, device, material or
process covered by letters patent or copyright by suitable legal agreement with the Patentee or Owner thereof. The
Contractor shall defend all suits or claims for infringement of any patent or copyrights and shall indemnify and save the
Owner harmless from any loss on account thereof; except that Owner shall defend all such suits and claims and shall be
responsible for all such loss when a particular design, device, material or process or the product of a particular manufacturer
or manufacturers is specified or required in these contract documents by Owner, provided, however, if choice of alternate
design, device, material or process is allowed to the Contractor, then Contractor shall indemnify and save Owner harmless
from any loss on account thereof If the material or process specified or required. by Owner is an infringement, the
Contractor shall be responsible for such loss unless he promptly gives written notice to the Owner of such infringement.
32. LAWS AND ORDINANCES
The Contractor shall at all times observe and comply with all federal, state and local laws, ordinances and regulations,
which in any manner effect the contract or the work, and shall indemnify and save harmless the Owner against any claims
arising from the violation of any such laws, ordinances, and regulations, whether by the Contractor or his employees. If the
Contractor observes that the plans and specifications are at variance therewith, he shall promptly notify the Owners'
Representative in writing and any necessary changes shall be adjusted as provided in th.- contract for changes in the work.
G, If the Contractor performs any work knowing it to be contrary to such laws, ordinances, rules and regulations, and without
such notice to the Owner's Representative, he shall bear all costs arising therefrom.
The Owner is a municipal corporation of the State of Texas and the law from which it derives its powers, insofar as the
same regulates the objects for which, or the manner in which, or the conditions under which the Owner may enter into
contracts, shall be controlling, and shall be considered as part of this contract to the same effect as though embodied herein.
33. ASSIGNMENT AND SUBLETTING
The Contractor further agrees that he will retain personal control and will give his personal attention to the fi,lfillment of
this contract. The Contractor further agrees that subletting of any portion or feature of the work, or materials required in
the performance of this contract, shall not relieve the Contractor from his full obligations to the Owner, as provided by this
contractual agreement.
It is hereby understood and mutually agreed by and between the Contractor and the Owner, that the date of beginning and
time for completion as specified in the contract of work to be done hereunder are essential conditions of this contract; and it
is further mutually understood and agreed that the work embraced in this contract shall be commenced on a date to be
specified in the Notice to Proceed.
If the Contractor should neglect, fail, or refuse to complete the work within the time herein specified, or any proper
extension thereof granted by the Owner, then the Contractor does hereby agree as part of the consideration for the awarding
C of this contract, the Owner may withhold permanently from Contractor's total compensation, the sum of $200.00 (Two
Hundred) PER DAY, not as a penalty, but as liquidated damages for the breach of the contract as herein set forth for each
and every working day that the Contractor shall be in default after the time stipulated for completing the work.
It is expressly understood and agreed, by and between Contractor and the Owner, that the time for the completion of the
work described herein is reasonable time for the completion of the same, taking into consideration the average climatic
change and conditions and usual industrial conditions prevailing in this locality. -
The amount is fixed and agreed upon by and between the Contractor and the Owner because of the impracticability and
extreme difficulty in fixing and ascertaining actual damages the Owner would in such event sustain, and the amount is
agreed to be damages the Owner would sustain and shall be retained by the Owner from current periodical estimates for
payments or from final payment.
It is farther agreed and understood between the Contractor and Owner that time is of the essence of this contract.
l It is the meaning and intent of this contract, unless otherwise herein specifically provided, that the Contractor shall be
l allowed to prosecute his work at such time and sessions, in such order of precedence, and in such manner as shall be most
conductive to economy of construction; provided, however, that the order and time of prosecution shall be such that the
r` work shall be substantially completed as a whole and in part, in accordance with this contract, the plans and specifications,
and within the time of completion designated in the proposals; provided, also, that when the Owner is having other work
done, either by contract or by his own force, the Owner's Representative may direct the time and manner of constructing
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work done under this contract so that conflicts will be avoided and the construction of the various works being done for the
Owner shall be harmonized.
The Contractor shall submit, at such times as may reasonably be requested by the Owner's Representative, schedules which
shall show the order in which the Contractor proposes to carry on the work, with dates at which the Contractor will start the
several parts of the work and estimated dates of completion of the several parts.
36. EXTENSION OF TINM
The Contractor agrees that he has submitted his proposal in full recognition of the time required for the completion of this
project, taking into consideration the average climatic range and industrial conditions prevailing in this locality, and has
considered the liquidated damage provisions of paragraph 33 hereinabove set forth and that he shall not be entitled to, nor
will he request, an extension of time on this contract, except when his work has been delayed by an act or neglect of the —
Owner, Owner's Representative, employees of the Owner or other contractors employed by the owner, or by changes ordered
in the work, or by strike, walkouts, acts of God or the public enemy, fire or flood. The Contractor may apply in writing for
an extension of time, submitting therewith all written justification as may be required by Owner's Representative for such an
extension as requested by Contractor. The Owner's Representative within ten (10) days after receipt of a written request for
an extension of time by the Contractor supported by all requested documentation shall then submit such written request to
the City Council of the City of Lubbock for their consideration. Should the Contractor disagree with the action of City
Council on granting an extension of time, such disagreement shall be settled by arbitration as hereinafter provided. —
37. 111DR CE AND DELAYS
In executing the contract agreement, the Contractor agrees that in undertaking to complete the work within the time herein
fixed, he has taken into consideration and made allowances for all hindrances and delays incident to such work, whether
growing out of delays in securing material or workmen or otherwise. No charge shall be made by the Contractor for
hindrance or delays from any cause during the progress of any part of the work embraced in this contract except where the
work is stopped by order of the Owner or Owner's Representative for the Owner's convenience, in which event, such
expense as in the judgment of the Owner's Representative that is caused by such stoppage shall be paid by Owner to
Contractor.
38. QUANTITIES AND MEASUREMENTS
No extra or customary measurements of any kind will be allowed, but the actual measured or computed length, area, solid
eontents,'number and weight only shall be considered, unless otherwise specifically provided.In the event this contract is let
on a unit price basis, then Owner and Contractor agree that this contract, including the specifications, plans and other
contract documents are intended to show clearly all work to be done and material to be furnished hereunder. Where the
estimated quantities are shown for the various classes of work to be done and material to be furnished under this contract,
they are approximate and are to be used only as a basis for estimating the probable cost of the work and for comparing their
proposals offered for the work It is understood and agreed that the actual amount of work to be done and the materials to be furnished under this contract may differ somewhat from these estimates, and that where the basis for payment under this
contract is the unit price method, payment shall be for the actual amount of work done and materials furnished on the
projec
39. PROTECTION OF ADJOINING PROPERTY
The Contractor shall take proper means to protect the adjacent or adjoining property or properties in any way encountered,
which may be injured or seriously affected by any process of construction to be undertaken under this agreement, from any
damage or injury by reason of said process of construction; and he shall be liable for any and all claims for such damage on
account of his failure to fully protect all adjacent property. The Contractor agrees to indemnify, save and hold harmless the _
Owner against any claim or claims for damages due to any injury to any adjacent or adjoining property, arising or growing
out of the performance of this contract, but such indemnity shall not apply to any claim of any kind arising out of the
existence or character of the work _
` 40. PRICE FOR WORK
In consideration of the furnishing of all necessary labor, equipment and material and the completion of all work by the
Contractor, and on the delivery of all materials embraced in this contract in full conformity with the specifications and
stipulations herein contained, the Owner agrees to pay the Contractor the price set forth in the proposal attached hereto,
which has been made a part of this contract, and the Contractor hereby agrees to receive such price in full for furnishing all
materials and all labor required for the aforesaid work, also, for all expenses incurred by him and for well and truly
performing the same and the whole thereof in the manner and according to this agreement, the attached specifications,
plans, contract documents and requirements of Owner's Representative.
41. PAYMENTS
No payments made or certificates given shall be considered as conclusive evidence of the performance of the contract, either
wholly or in part, nor shall any certificate or payment be considered as acceptance of defective work Contractor shall at
any time requested during the progress of the work furnish the Owner or Owner's Representative with a verifying certificate
showing the Contractor's total outstanding indebtedness in connection with the work. Before final payment is made,
Contractor shall satisfy Owner, by affidavit or otherwise, that there are no outstanding liens against Owner's premises by
reason of any work under the contract. Acceptance by Contractor of final payment of the contract price shall constitute a
�-+ waiver of all claims against Owner which have not theretofore been timely filed as provided in this contract.
42. PARTIAL PAYMENTS
On or before the tenth day of each month, the Contractor shall submit to Owner's Representative an application for partial
payment. Owner's Representative shall review said application for partial payment and the progress of the work made by
the Contractor and if found to be in order shall prepare a certificate for partial payment showing as completely as practical
the total value of the work done by the Contractor up to and including the last day of the preceding month; said statement
shall also include the value of all sound materials delivered on site of the work that are to be fabricated into the work
The Owner shall then pay the Contractor on or before the fifteenth day of the current month the total amount of the Owner's
Representative's Certificate of Partial Payment, less 3% of the amount thereof, which 5% shall be retained until final
payment, and further, less all previous payments and all further sums that may be retained by Owner under the terms of this
agreement It is understood, however, that in case the whole work be near to completion, and this fact is certified to by
Owner's Representative and some unexpected and some unusual delay occurs due to no fault or negligence on the part of the
Contractor, the Owner may upon written recommendation of Owner's Representative pay a reasonable and equitable portion
of the retained percentage due Contractor.
43. FINAL COMPLETION AND ACCEPTANCE
Within thirty-one (31) days after the Contractor has given the Owner's Representative written notice that the work has been
completed or substantially completed, the Owner's Representative and the Owner shall inspect the work and within said
time, if the work be found to be completed or substantially completed in accordance with the contract documents, the
Owner's Representative shall issue to the Owner and Contractor his certificate of completion, and thereupon it shall be the
duty of the Owner within thirty-one (31) days to issue a certificate of aacptance of the work to the Contractor.
44. FINAL PAYMENT
Upon the issuance of the certificate of completion, the Owner's Representative shall pi-ooecd to make final measurement and
prepare a final statement of the value of all work performed and materials furnished under the terms of the agreement, and
shall certify same to the Owner, who shall pay to the Contractor on or before the 31 st day after the date of certificate of
�. completion, the balance due Contractor under the terms of this agreement, provided he has fully performed his contractual
I obligations under the terms of this contract; and said payment shall become due in any event upon said performance by the
l Contractor. Neither the certificate of acceptance nor the final payment, nor any provisions, in the contract documents shall
relieve the Contractor of the obligation for fulfillment of any warranty which may be required in the special conditions (if
any) of this contract or required in the specifications made a part of this contract
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45. CORRECTION OF WORK BEFORE FINAL PAYMENT FOR WORK
Contractor shall promptly remove from Owners' premises all materials condemned by the Owner's Representative on
account of failure to conform to the contract, whether actually incorporated in the work or not, and Contractor shall at his
own expense promptly replace such condemned materials with other materials conforming to the requirements of the
contract. Contractor shall also bear the expense of restoring all work of other contractors damaged by any such removal or
replacement If Contractor does not remove and replace any such condemned work within a reasonable time after a written
notice by the Owner or the Owner's Representative, Owner may remove and replace it at Contractor's expense.
46. CORRECTION OF WORK AFTER FINAL PAYMENT
Neither the final payment nor certificate nor any provision in this contract shall relieve the Contractor of responsibility for
faulty materials or workmanship, and he shall remedy any defects due thereto and pay for any damage to other work
resulting therefrom, which shall appear within a period of one (1) year from the date of substantial completion. The Owner
or the Owner's Representative shall give notice of observed defects with reasonable promptness.
47. PAYMENT WTTHBELD
The Owner may, on account of subsequently discovered evidence, withhold or nullify the whole or part of any certificate to
such extent as may be necessary to protect himself from loss on account of.
(a) Defective work not remedied.
(b) Claims filed or reasonable evidence indicating possible filing of claims.
(c) Failure of the Contractor to make payments promptly to subcontractors or for materials or labor.
(d) Damage to another contractor.
When the above grounds are removed, or the Contractor provides a surety bond satisfactory to the Owner, which will
protect the Owner in the amount withheld, payment shall be made for amounts withheld because of them.
48. TIME OF FILING CLAIMS
It is further agreed by both parties hereto that all questions of dispute or adjustment presented by the Contractor shall be in
writing and filed with the Owner's Representative within fifteen (15) days after the Owner's Representative has given any
directions, order or instruction to which the Contractor desires to take exception. The Owners' Representative shall reply to
such written exceptions by the Contractor and render his final decision in writing. In case the Contractor should appeal
from the decision of the Owner's Representative, any demand for arbitration shall be filed with the Owner's Representative
and the Owner in writing within ten (10) days after the date of delivery to Contractor of the final decision of the Owner's
Representative. It is further agreed that final acceptance of the work by the Owner and the acceptance by the Contractor of
the final payment shall be a bar to any claim by either party, except where noted otherwise in the contract documents.
49. ABANDONMENT BY CONTRACTOR
In case the Contractor should abandon and fail or refuse to resume work within ten (10) days after written notification from
the Owner or the Owner's Representative, or if the Contractor fails to comply with the orders of the Owner's Representative,
when such orders are consistent with this contract, this Agreement, or the Specifications hereto attached, then the Surety on
the bond shall be notified in writing and directed to complete the work and a copy of said notice shall be delivered to the
Contractor.
After receiving said notice of abandonment, the Contractor shall not remove from the work any machinery, equipment,
tools, materials or supplies then on the job, but the same, together with any materials and equipment under the contract for
work, may be held for use on the work by the Owner or the Surety of the Contractor, or another contractor, in completion of
the work; and the Contractor shall not receive any rental or credit therefore (except when used in connection with Extra
Work, where credit shall be allowed as provided for under paragraph 24 of this contract); it being understood that the use of
such equipment and materials will ultimately reduce the cost to complete the work and be reflected in the final settlement.
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In case the Surety should fail to commence compliance with the notice for completion h=mbefore provided for within ten
(10) days after service of such notice, then the Owner may provide for completion of the work in either of the following
P'7 elective manners:
(a) The Owner may employ such force of men and use of machinery, equipment, tools, materials and supplies as said
Owner may deem necessary to complete the work and charge the expense of such labor, machinery, equipment,
tools, materials and supplies to said Contractor, and the expense so charged shall be deducted and paid by the
Owner out of such moneys as may be due, or that may thereafter at any time become due to the Contractor under
and by virtue of this Agreement In case such expense is less than the sum which would have been payable under
this contract, if the same had been completed by the Contractor, then said Contractor shall receive the difference.
In case such expense is greater than the sum which would have been payable under this contract, if the same had
been completed by said Contractor, then the Contractor and/or his Surety shall pay the amount of such excess to
the Owner, or
(b) The Owner, under sealed bids, after notice published as required by law, at leash twice in a newspaper having a
general circulation in the County of location of the work, may let the contract for the completion of the work under
substantially the same terms and conditions which are provided in this contract. In case of any increase in cost to
the Owner under the new contract as compared to what would have been the caft under this contract, such increase
shall be charged to the Contractor and the Surety shall be and remain bound therefore. However, should the cost to
complete any such new contract prove to be less than that which would have bum the cost to complete the work
under this contract, the Contractor or his Surety shall be credited therewith.
When the work shall have been substantially completed, the Contractor and his Surety shall be so notified and certificates of
completion and acceptance, as provided in paragraph 42 heremabove set forth, shall be issued. A complete itemized
statement of the contract accounts, certified to by Owner's Representative as being correct shall then be prepared and
delivered to Contractor and his Surety, whereon the Contractor or his Surety, or the Owner as the case may be, shall pay the
balance due as reflected by said statement within 30 days after the date of certificate of completion
In the event the statement of accounts shows that the cost to complete the work is less than that which would have been the
cost to the Owner had the work been completed by the Contractor under the terms of this contract, or when the Contractor
and/or his Surety shall pay the balance shown to be due by them to the Owner, then all machinery, equipment, tools,
materials or supplies left on the site of the work shall be turned over to the Contractor and/or his Surety. Should the cost to
complete the work exceed the contract price, and the Contractor and/or his Surety fail to pay the amount due the Owner
within the time designated hereinabove, and there remains any machinery, equipment, tools, materials or supplies on the
site of the work, notice thereof, together with an itemized list of such equipment and materials shall be mailed to the
Contractor and his Surety at the respective addresses designated in this contract; provided, however, that actual written
notice given in any manner will satisfy this condition After mailing, or other giving of such notice, such property shall be
held at the risk of the Contractor and his Surety subject only to the duty of the Owner to exercise ordinary care to protect
such property. After fifteen (15) days from the date of said notice the Owner may sell such machinery, equipment, tools,
materials or supplies and apply the net sum derived from such sale to the credit of the Contractor and his Surety. Such sale
may be made at either public or private sale, with or without notice, as the Owner may el,xt. The Owner shall release any
machinery, equipment, tools, materials, or supplies which remain on the'yobsitc and belong to persons other than the
Contractor or his Surety, to their proper owners.
50. ABANDONMENT BY OWNER
r" In case the Owner shall fail to comply with the terms of this contract, and should fail or refuse to comply with said terms
Y within ten (10) days after written notification by the Contractor, then the Contractor may suspend or wholly abandon the
work, and may remove therefrom all machinery, tools, and equipment, and all materials on the ground that have not been
included in payments to the Contractor and have not been incorporated into the work. Thereupon, the Owner's
rRepresentative shall make an estimate of the total amount earned by the Contractor, which estimate shall include the value
of all work actually completed by said Contractor at the prices stated in the the attached proposal, the value of all partially
completed work at a fair and equitable price, and the amount of all Extra Work performed at the prices agreed upon, or
provided for by the terms of this contract, and a reasonable sum to cover the cost of any provisions made by the Contractor
to carry the whole work to completion, and which cannot be utilized. The Owner's Representative shall then make a final
statement of the balance due the Contractor by deducting from the above estimate all previous payments by the Owner and
all other sums that may be retained by the Owner under the terms of this Agreement, and shall certify same to the Owner
who shall pay to the Contractor on or before thirty (30) days after the date of the notification by the Contractor the balance
shown by said final statement as due the Contractor, under the terms of this Agreement.
51. BONDS
The successful bidder shall be required to furnish a performance bond and payment bond in accordance with Article 5160,
Vernon's Annotated Civil Statutes in the amount of 100% of the total contract price, in the event said contract price exceeds
$25,000.00. If the contract price does not exceed $25,000.00, the statutory bonds will not be required. All bonds, if
required, shall be submitted on forms supplied by the Owner, and executed by an approved Surety Company authorized to
do business in the State of Texas. And it is further agreed that this contract shall not be in effect until such bonds are so
furnished.
52. SPECIAL CONDTfIONS
In the event special conditions are contained herein as part of the contract documents and said special conditions conflict
with any of the general conditions contained in this contract, then in such event the special conditions shall control.
53. LOSSES FROM NATURAL CAUSES
Unless otherwise specified herein, all loss or damage to the Contractor arising out of the nature of the work to be done, or
from the action of the elements, or from any unforeseen circumstance and the prosecution of the same, or from unusual
obstructions or difficulties which may be encountered in the prosecution of the work, shall be sustained and borne by the
Contractor at his own cost and expense.
54. INDEPENDENT CONTRACTOR
Contractor is, and shall remain, an independent contractor with full, complete and exclusive power and authority to direct,
supervise, and control his own employees and to determine the method of the performance of the work covered hereby. The
fact that the Owner or Owner's Representative shall have the right to observe Contractor's work during his performance and
to carry out the other prerogatives which are expressly reserved to and vested in the Owner or Owners Representative
hereunder, is not intended to and shall not at any time change or effect the status of the Contractor as an independent
contractor with respect to either the Owner or Owner's Representative or to the Contractor's own employees or to any other
person, firm, or corporation.
55. CLEANING UP
The Contractor shall at all times keep the premises free from accumulation of debris caused by the work, and at the
completion of the work he shall remove all such debris and also his tools, scaffolding, and surplus materials and shall leave
the work room clean or its equivalent. The work shall be left in good order and condition. In case of dispute Owner may
remove the debris and charge the cost to the Contractor. —
No Text
�. 6 Aw, 7L;U4.
January 8, 1987
Agenda Item f18
Awi
DGV:da
RESOLUTION
WHEREAS, the City Council has heretofore established the general
prevailing rate of per diem wages for each craft or type of workmen or
mechanics needed to execute public works contracts for the City of Lubbock
in accordance'with the provisions of Vernon's Ann.Civ.St., Art. 5159a; and
WHEREAS, such wage rates were established by Resolution No. 719
enacted February 12, 1981, updated by Resolution No. 1590 enacted February
23, 1984; and
WHEREAS, such rates need to be updated at the present time in order
to reflect the current prevailing rate of per diem wages; NOW THEREFORE:
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK:
THAT the general prevailing rate of per diem wages for public works
.contracts shall be as set forth in the following named exhibits, which
exhibits shall be attached hereto and made a part hereof for all intents
and purposes:
Exhibit A: Building Construction Trades
Exhibit B: Paving and Highway Construction Trades
Exhibit C: Electrical Trades
Exhibit D: Overtime Rate
Exhibit E: Weekend and Holiday Rate
Such wage rates are hereby found and declared to be the general prevailing
rate of per diem wages in all localities where public works are undertaken
on behalf of the City of Lubbock and such wage rates shall be included in
all public works contracts as provided by law.
Passed by the City Council this 8th day of January , 1987.
. TTE •
Ranettc-Boyd, City Secretary
APPROVED T. O?�TENT:
• Bi 1 Pyne, D rector of Building
Services
B.C. McMINN, MAYOR
APPROVED A(S�(TOO FORM:
�(�'`
I A A
Oorrald G. Vandiver, First
Assistant City Attorney
EXHIBIT A
City of Lubbock
Building Construction Trades
Prevailing Rates
Craft Hourly Rate
Acoustical Ceiling Installer
$11.60
Air Conditioner Installer
8.35
Air Conditioner Installer -Helper
5.50
Bricklayer
10.50
Bricklayer -Helper
5.00
Carpenter
11.00
Carpenter -Helper
5.50
Cement Finisher
7.35
Drywall Hanger -
8.70
Electrician -
10.50
Electrician -Helper
5.25
Equipment Operator -
Heavy
8.00
Light
5.70
Floor Installer
8.00
Glazier
7.50
Insulator, Piping/Boiler
9.50
Insulator -Helper
5.00
Iron Worker
7.30
Laborer, General
4.75
Mortar Mixer
5.60
Painter
8.75
Plumber
9.25
Plumber -Helper
6.00
Roofer
7.65
Roofer -Helper
4.75
Sheet Metal Worker
8.75
Sheet Metal Worker -Helper
5.50
Welder - Certified
8.00
EXHIBIT B
Paving and Highway Construction
Prevailing Wage Rates
Craft
Hourly Rate
Asphalt Heaterman
$5.25
Asphalt Shoveler
4.75
Concrete Finisher
7.35
Concrete Finisher -Helper
4.75
Electrician
10.50
Flagger
4.75
Form Setter
6.50
Form Setter -Helper
5.50
Laborer, General
4.75
Laborer, Utility
5.80
' Mechanic
6.50
Mechanic -Helper
6.00
POWER EQUIPMENT OPERATORS "
' Asphalt Paving Machine
6.00
Bulldozer
5.25
Concrete Paving Machinist
6.50
Front End Loader
5.85
Heavy Equipment Operator
6.40
Light Equipment Operator
6.40
Motor Grade Operator
8.00
Roller
5.25
Scraper
5.25
Tractor
5.50
Truck Driver -
Light
5.25
Heavy
5.25
.IA
EXHIBIT C
Electric Construction Trades
Prevailing Wage Rates
Craft Hourly Rate
Power Line Foreman $11.00
Lineman Journeyman 10.45
Lineman Apprentice Series 8.90
Groundman Series 7_25
EXHIBIT D
Prevailing Wage Rates
Overtime Rate
The rate for overtime (in excess of forty hours per week) is 1 1/2
times base rate.
EXHIBIT E
Prevailing Wage Rates
Weekend and Holiday Rate.
The rate for weekend and holiday is 1 1/2 times base rate.
U
a
City of Lubbock, Texas
STREET IMPROVEMENTS
FRANKFORD AVENUE RECONSTRUCTION
(66TH STREET TO 82ND STREET)
Project No. 9925.9240
Bid No. 13129
November 1994
Technical Specifications
ii- 1d"9'F
Parkhill. Smith & Cooper, Inc.
Engineers • Architects • Planners
11
ii'Ig -'I
TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS
SECTION 1
DEMOLITION. REMOVAL AND SALVAGING
OF EXISTING MATERIALS
Paragraph Page
1. Description 1-1
2. Construction Methods 1-1
3. Method of Measurement 1-2
4. Basis of Payment 1-2
SECTION 2
EXCAVATION. SUBGRADE PREPARATION. GRADING.
EMBANKMENT AND TOPSOILING
1. Description 2-1
2. Construction Methods 2-1
3. Topsoil 2-7
4. Method of Measurement 2-8
5. Basis of Payment 2-8
SECTION 3
FLEXIBLE BASE COURSE (CALICHE)
1. Description 3-1
2. Materials 3-1
3. Construction Methods 3-2
4. Method of Measurement 3-4
5. Basis of Payment 3-5
SECTION 4
ITUMINOUS BASE AND SURFACE COURSE
1.
Description
4-1
2.
Materials
4-1
3.
Equipment
4-7
4.
Construction Methods
4-7
5.
Method of Measurement
4-10
6.
Basis of Payment
4-10
2752-94
TOC - 1
n
l
r
Paragraph
1.
2.
3.
4.
5.
6.
7.
8.
1.
2.
3.
4.
5.
1.
2.
3.
4.
1.
2.
3.
4.
1.
2.
3.
4.
5.
2752-94
TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS (Continued)
SECTION 5
PORTLAND CEMENT CONCRETE
Description
Materials
Construction Methods
Repairs of Defective Pavement Slabs
Removal and Replacement of Defective Pavement Areas
Tolerance in Pavement Thickness
Method of Measurement
Basis of Payment
SECTION 6
CONCRETE SLABS, CURB AND GUTTER
AND MI_,SCELLANEOUS CONCRETE WORK
Description
Concrete
Construction Methods
Method of Measurement
Basis of Payment
SECTION
JOINT SEALING FILLER
Description
Concrete
Construction Methods
Method of Measurement and Basis of Payment
SECTION 8
MISCELLANEOUS ITEMS OF CONSTRUCTION
Description
Pavement Markers (Channel Markers)
Method of Measurement
Basis of Payment
SECTION 9
TEMPORARY EROSION. SEDIMENTATION AND WATER
POLLUTION PREVENTION AND CONTROL
Description
Materials
Construction Methods
Method of Measurement
Basis of Payment
TOC - 2
Page
5-1
5-1
5-5
5-26
5-28
5-28
5-29
5-29
6-1
6-1
6-1
6-4
6-4
7-1
7-1
7-1
7-2
8-1
8-1
8-1
8-1
9-1
9-1
9-2
9-4
9-5
TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS (Continued)
SECTION 10
SPRINKLER SYSTEM
Paragraph
1. Description
2. Materials
3. Construction Methods
4. Method of Measurement
S. Basis of Payment
SECTION 11
PAVEMENT TRAFFIC MARKING
ADDITIVE ALTERNATE
Page
10-1
10-1
10-3
10-5
10-5
1. Description 11-1
2. Materials 11-1
3. Construction Methods 11-3
4. Method of Measurement 11-5
5. Basis of Payment 11-5
2752-94 TOC - 3
i'.
SECTION 1
DEMOLITION, REMOVAL AND SALVAGING
t OF EXISTING MATERIALS
f 1. DESCRIPTION
4
1-1
General
This item shall consist of the demolition, removal, and salvage or
disposal
of certain portions of existing paving materials, including existing
asphalt
surfacing
and base material, existing concrete slabs and existing
-
concrete curb and
conformity with the
gutter, in accordance with these specifications and in
dimensions and typical cross sections shown on the plans and
with the
lines and
grades established for the project.
1-2 Classification \,
Materials to be removed consist of asphaltic concrete, portland cement
concrete pavement and concrete curb and gutter. No consideration shall be given
to differences in thickness or volume of material for each material removed. All
pavement of each type to be removed shall be considered as being the same and
equal and no consideration shall be given to differences in thickness of
material.
2. CONSTRUCTION METHODS
2-1 General
All lines separating pavement, concrete slabs or curb and gutter to be
removed from that to remain in place shall be cut neatly and in a straight line,
or shall be separated at an existing expansion or construction joint. Cuts shall
l be made by means of sawing, or other methods approved by the Owner's
l Representative which will produce a satisfactory edge. In no case shall the line
be cut with a motor grader blade.
r
4
2-2 Removing and Salvaging Existing Asphalt Surfacing and Base Material
The existing asphalt surfacing to be removed shall be salvaged and
stockpiled by the Contractor at the location shown on the drawings.
The existing asphalt surfacing to be removed shall be scarified, broken
up and pulverized by means of grid rollers, scarifiers or other suitable
equipment, such that no remaining piece of the existing surfacing is larger than
2-inches in its largest dimension.
All existing base course material shall be removed by equipment and
methods that does not disturb the underlying paving courses. The removed base
course material shall be removed, salvaged, delivered and stockpiled at the
location shown on the drawings.
No material shall be stockpiled on any subgrade, base or surface course
constructed under these specifications, nor on any existing paved surface.
2752-94 1 - 1
7
After removal of the stockpiled material, all areas used for
stockpiling shall be restored to their former condition. No additional
compensation shall be allowed for cleaning or restoring of the areas where --
salvaged materials are stockpiled.
2-3 Removing and Disposing of Existing Concrete Slabs and Concrete Curb
and Gutter
All existing concrete slabs and curb and gutter to be removed shall be
broken up by suitable methods and equipment, and shall be removed from the
construction site and properly disposed of at the Contractor's expense.
The limits of removal of concrete slabs and curb and gutter shall be
as shown on the plans or as directed by the Owner's Representative. All existing
concrete to be removed shall be broken into pieces with an approximate maximum
dimension of 24-inches and an approximate minimum dimension of 6-inches.
The Contractor shall be responsible for all damage to all adjacent
paving, curb and gutter, and other structures, and shall repair said damage to
the satisfaction of the Owner's Representative. No additional compensation shall
be allowed for the repair of such damage.
3. METHOD OF MEASUREMENT
The quantity of existing asphalt surfacing material to be removed, salvaged,
delivered and stockpiled to be paid for under this item shall be the number of
square yards, measured by surface area in its original position, without regard
for thickness, completed and accepted.
The quantity of existing base course material to be removed, salvaged,
delivered and stockpiled to be paid for under this item shall be the number of
square yards, measured by surface area in its original position, without regard
for thickness, completed and accepted.
The quantity of existing concrete slabs to be removed to be paid for under
this item shall be the number of square yards, measured by surface area in its
original position, without regard for thickness, completed and accepted.
The quantity of existing concrete curb and gutter to be removed to be paid
for under this item, and shall be the number of linear feet of concrete curb and
gutter removed, measured in its original position, completed and accepted.
4. BASIS OF PAYMENT
Payment for this work will be made at the contract unit price for the units
as shown below for the various items, which unit price shall be full compensation
for all cutting or sawing; for all scarifying; for all breaking, pulverizing,
mixing, removing and salvaging or disposing of existing surfacing and base
materials, existing concrete slabs and structures, and existing curb and gutter;
for all hauling and stockpiling of salvaged materials; and for all labor,
equipment, tools and incidentals necessary to complete this item.
2752-94 1 2
Payment shall be made under the following items:
Remove, Salvage, Deliver and Stockpile Existing Asphalt Surfacing at
the location shown on the Drawings, complete, per square yard;
Remove, Salvage, Deliver and Stockpile Existing Base Course Material,
at the location shown on the Drawings, complete, per square yard;
Remove and Dispose of Existing Concrete Curb and Gutter, complete, per
linear foot; and
Remove and Dispose of Existing Concrete Slabs, complete, per square
yard.
2752-94
END OF SECTION
1 - 3
I
d
=SECTION 2
EXCAVATION. SUBGRADE PREPARATION. GRADING.
EMBANKMENT AND TOPSOILING
1. DESCRIPTION
1-1 General
(" This item shall consist of excavation, subgrade preparation, grading,
embankment and topsoiling of all materials within the limits of the work required
to complete the construction of the various items included in this project in
�•. accordance with these specifications and in conformity with the dimensions and
typical sections shown on the plans and with the lines and grades established for
the project.
All suitable material taken from excavation shall be used in the
formation of embankment, subgrade, and for backfilling as indicated on the plans
or as directed by the Owner's Representative.
It is anticipated that no borrow material will be required for the
construction of this project. However, if the volume of excavation removed from
the construction site is not sufficient for constructing the project fill to the
grades indicated, the deficiency shall be supplied from borrow sites approved by
the Owner's Representative at the Contractor's expense. If the volume of
excavation material removed from the project construction area exceeds that
required to construct the project to the grades indicated, the excess material
shall become the property of the Contractor and shall be properly disposed of in
areas off the construction site at the Contractor's expense.
1-2 Classification
All material excavated shall be defined as unclassified excavation and
shall include all excavation performed under this item regardless of the material
encountered. Existing asphaltic concrete pavement and base material, concrete
slabs and curb and gutter shall be salvaged or removed in accordance with Section
1, DEMOLITION, REMOVAL AND SALVAGING OF EXISTING MATERIALS, of these
specifications.
2. CONSTRUCTION METHODS
2-1 General
The rough excavation shall be carried to the necessary depth to obtain
the specified depth of subgrade densification shown on the plans. Likewise, on
embankments, the depth of subgrade densification shall be as shown on the plans.
Should the Contractor, through negligence or other fault, excavate below the
designated lines, he shall replace the excavation with approved materials, in an
approved manner and condition, at his own expense. The Owner's Representative
shall have complete control over the excavation, moving, placing, and disposition
of all material and shall determine the suitability of material to be placed in
embankments. All material determined unsuitable shall be disposed of in waste
areas or as directed. Topsoil shall not be used in fills or in subgrades but
shall be handled and placed as directed.
F 2752-94 2 - 1
The Contractor shall inform and satisfy himself as to the character,
quantity, and distribution of all material to be excavated. No payment will be
made for any excavated material which is used for purposes other than those
designated. All spoil areas shall be leveled to a uniform line and section and
shall present a neat appearance before project acceptance.
Those areas outside of the pavement areas in which the top layer of
soil material becomes compacted, due to hauling or to any other activity of the
Contractor, shall be scarified and disced to a depth of 4 inches, as directed,
to loosen and pulverize the soil.
If it is necessary to interrupt existing surface drainage, sewers or
underdrainage, conduits, utilities, or similar underground structures, or parts
thereof, the Contractor shall be responsible for and shall take all necessary
precautions to protect and preserve or provide temporary services. The
Contractor shall, at his own expense, satisfactorily repair all damage to such
facilities or structures which may result from any of his operations during the
period of the contract.
2-2 Excavation
Excavation shall be performed as indicated on the contract plans to the
lines ,grades, and elevation shown or as directed by the Owner's Representative,
and shall be made so that the requirements for formation of embankments can be
followed. No excavation or stripping shall be started until the Owner's
Representative has taken cross -sectional elevations and measurements of the
existing ground surface, and has set control base lines for the proposed work.
All material encountered within the limits indicated shall be removed and
disposed of as directed. During the process of excavation, the grade shall be
maintained so that it will be well drained at all times. When directed,
temporary drains and drainage ditches shall be installed to intercept or divert
surface water which may affect the work.
When selective grading is specified or required as indicated on the
plans, the excavated material shall be handled to allow the selected material to
be properly placed in the embankment and in the capping of pavement subgrades as
determined from the soil profile and soil characteristics.
The Contractor shall so schedule the work that excavated material can
be placed in its proper section of the pavement construction.If the Contractor
for his convenience desires to stockpile material, it shall be stockpiled in
approved areas for later use.
Rock, shale, hardpan, loose rock, boulders, or other material —
unsatisfactory for subgrades, roads, shoulders, intermediate areas, or any areas
intended for turfing shall be excavated to a minimum depth of 12 inches below the
contemplated surface of the subgrade or the designated grades. Muck, peat, _
matted roots, or other yielding material, unsatisfactory for subgrade foundation,
shall be removed to a depth specified, to provide a satisfactory foundation.
Unsatisfactory materials shall become the property of the Contractor and shall
be disposed of at locations approved by the Owner's Representative at the
Contractor's expense. The portion so excavated shall be refilled with suitable
selected material as specified, obtained from the grading operations or borrow
2752-94 2 - 2
area and thoroughly compacted by rolling. The necessary refilling will
constitute a part of the embankment. Where rock cuts are made and refilled with
selectedmaterial, or where trenching out is done to provide for a course of
pavement, the depths thus created shall be ditched at frequent intervals to
provide adequate drainage.
The Owner reserves the right to make minor adjustments or revisions in
lines or grades, if found necessary, as the work progresses due to discrepancies
in the plans or to obtain satisfactory construction.
The removal of existing structures and utilities required to permit the
orderly progress of work will be accomplished by the Contractor as an incidental
part of the work, unless otherwise shown on the plans.
In cut areas, the subgrade under areas to be paved shall be compacted
to the depths and to the densities at optimum moisture as shown on the plans or
as specified by the specifications, and as determined by the compaction control
tests specified in ASTM D-698. Any unsuitable materials encountered shall be
removed.
4 In cut areas, the subgrade material shall be removed to the depths
indicated on the drawings. The bottom layer of ;subgrade shall be compacted to
the depths and density as shown on the drawings. The remaining layers of
subgrade shall be constructed as embankment as shown on the drawings.
No payment or measurement for payment will be made for suitable
materials removed, manipulated, and replaced in order to obtain density except
as specified above. Any removal, manipulation, aeration, replacement, and
recompaction of suitable materials necessary to obtain the required density,
*^ except as specified above, shall be considered as incidental. to the excavation
and embankment operations, and shall be performed by the Contractor at no
additional cost to the project.
Stones or rock fragments, larger than 4 inches in their greatest
dimension will not be permitted in the top 12 inches of the subgrade. The
finished grading operations conforming to the typical cross section shall be
completed and maintained ahead of the paving operations.
In cuts, all loose or protruding rocks on the back slopes shall be
!' barred loose or otherwise removed to line or finished grade of slope. All
cut -and -fill slopes shall be uniformly dressed to the slope, cross section, and
alignment shown on the plans or as directed by the Owner's Representative.
Blasting will not be permitted.
2-3 Preparation of Embankment Area
Embankment areas shall be cleared and grubbed. All depressions or
holes below the ground surface, whether caused by grubbing or otherwise, shall
be backfilled with suitable material and compacted to ground surface before the
construction of the embankment will be permitted to start.
2752-94 2 - 3
r
F
Immediately prior to the placing of the fill materials, the entire area
upon which the embankment is to be placed, except where limited by rock, shall
be scarified and broken by means of a disc harrow or plow, or other approved
equipment, to a depth of 6 inches. Scarifying shall be done approximately
parallel to the axis of the fill. All roots, debris, large stones, or
objectionable material that would cause interference with the compaction of the
foundation or fill shall be removed from the area and disposed of as directed.
A thin layer (approximately 3 inches) of the fill material shall be spread over
the scarified foundation and the whole area compacted as required in the
specifications.
Where embankments are to'be placed on natural slopes steeper than
3-to-1, horizontal benches shall be constructed as directed by the Owner's
Representative. Suitable excavated material shall be incorporated in
embankments.
No direct payment shall be made for the preparation of the embankment
area.
2-4 Stripping
All vegetation such as trees, brush, heavy sods, heavy growth of grass,
decayed vegetable matter, rubbish, and any other unsuitable material within the
area upon which embankment is to be placed shall be stripped or otherwise removed
before the embankment is started, and in no case shall such objectionable
material be allowed in or under the embankment. No direct payment will be made
for stripping.
2-5 Formation of Embankments
Embankments shall be formed of satisfactory materials placed in
successive horizontal layers of not more than 8 inches in loose depth for the
full width of the cross section.
The grading operations shall be conducted, and the various soil strata
shall be placed, to produce a soil structure as shown on the typical cross
section or as directed. All materials entering the embankment shall be
reasonably free of organic matter such as leaves, grass, roots, and other
objectionable material. Soil, granular material, shale, and any other material
permitted for use in embankment shall be spread in successive layers as
specified.
Operations on earthwork shall be suspended at any time when
satisfactory results cannot be obtained because of rain, freezing weather, or
other unsatisfactory conditions of the field. The Contractor shall drag, blade,
or slope the embankment to provide proper surface drainage.
The material in the layers shall be of the proper moisture content
before rolling to obtain the prescribed compaction. Wetting or drying of the
material and manipulation when necessary�to secure a uniform moisture content
throughout the layer shall be required. Should the material be too wet to permit
proper compaction or rolling, all work on all portions of the embankment thus
affected shall be delayed until the material has dried to the required moisture
content. Sprinkling shall be done with approved equipment that will sufficiently
2752-94 2 - 4
i
distribute the water. Sufficient equipment to furnish the required water shall
be available at all times. Samples of all embankment materials for testing, both
r" before and after placement and compaction, will be taken at frequent intervals.
From these tests, corrections, adjustments, and modifications of methods,
materials, and moisture content will be made to construct the embankment.
Rolling operations shall be continued until the embankment is compacted
to not less than 95%, for noncohesive soils; and 90% for cohesive soils of the
maximum density, at optimum moisture, as determined by the compaction control
tests in ASTM D-698. Under all areas to be paved, the embankment shall be
compacted to the depths and to the densities at optimum moisture as shown on the
plans or as specified in the specifications, as determined by the compaction
control tests specified in ASTM D-698. On all areas outside of the pavement
i areas, no compaction will be required on the top 4 inches. Any areas
inaccessible to a roller shall be consolidated and compacted by mechanical
r— tampers.
During construction of the embankment, the Contractor shall route his
equipment at all times, both when loaded and when empty, over the layers as they
are placed and shall distribute the travel evenly over the entire width of the
embankment. The equipment shall be operated in such a manner that hardpan,
cemented gravel, clay, or other chunky soil material will be broken up into small
particles and become incorporated with the other material in the layer.
In the construction of embankments, starting layers shall be placed in
the deepest portion of the fill; as placement progresses, layers shall be
constructed approximately parallel to the finished pavement grade line.
When rock and other embankment material are excavated at approximately
the same time, the rock shall be incorporated into the outer portion of the
embankment and the other materials shall be incorporated under the future paved
areas. Stones or fragmentary rock larger than 4 inches in their greatest
r, dimension will not be allowed in the top 12 inches of the subgrade. Rockfill
shall be brought up in layers as specified or as directed and every effort shall
be exerted to fill the voids with the finer material to form a dense, compact
mass. Rock or boulders shall not be disposed of outside of: the excavation or
embankment areas, except at places and in the manner designated by the owner's
Representative.
Frozen material shall not be placed in the embankment nor shall
embankment be placed upon frozen material.
The Contractor shall be responsible for the stability of all
embankments made under the contract and shall replace any portion which, in the
opinion of the Owner's Representative, has become displaced due to carelessness
or negligence on the part of the Contractor.
There .will be no separate, measurement or payment for compacted
embankment, and all costs incidental to placing in layers, compacting, discing,
watering, mixing, sloping, and other necessary operations of the embankments will
be included in the contract price for excavation.
2752-94 2 - 5
When stockpiling of excavated material and later rehandling of such
material is done for the convenience of the Contractor, no extra payment will be
made for the rehandling of stockpiled materials.
2-6 Eouipment
The -Contractor may use any type of earth -moving, compaction, and
watering equipment he may desire or has at his disposal; provided the equipment
is in a satisfactory- condition and is of such capacity that the construction
schedule can be maintained as planned by the Contractor and as approved by the
Owner's Representative in accordance with the total calendar days or working days
bid for the construction. The Contractor shall furnish, operate, and maintain
such equipment as is necessary to control uniform density, layers, section, and
smoothness of grade.
2-7 Preparation and Protection of the Top of the Sub rg ade
On areas to be paved, the specified depth in cut areas and the top of
embankment shall be compacted to the density specified. When completed, the
surface shall be true to the lines, grades, and cross section shown on the plans
or as directed by the Owner's Representative. After all drains, structures,
ducts, and other underground appurtenances along the edges or under the pavement
have been completed, the subgrade shall be compacted to the depth and density
specified as determined by the compaction control tests specified in ASTM D-698.
Any irregularities or depressions that develop under rolling shall be corrected
by loosening the material at these places and adding, removing, or replacing
material until the surface is smooth and uniform. Any portion of the area which
is not accessible to a roller shall be compacted to the required density by
approved mechanical: tampers. The material shall be. sprinkled with water during
rolling or tamping as required or when directed by the Owner's Representative.
All soft and yielding material and material which will not compact
readily when rolled or tamped shall be removed as directed by the Owner's
Representative and replaced with suitable material. After grading operations are
complete, all loose stones larger than 2 inches in their greatest dimension shall
be removed from the surface of all proposed graded paving areas and disposed of
as directed by the Owner's Representative.
At all times, the top of the subgrade shall be kept in such condition
that it will drain readily and effectively. In handling materials, tools, and
equipment, the Contractor shall protect the subgrade from damage by laying planks
when directed and shall take other precautions as weeded. In no case will
vehicles be allowed to travel in a single track. If ruts are formed, the
subgrade shall be reshaped and rolled. Storage or stockpiling of materials on the
top of the subgrade will not be permitted. Until the subgrade has been checked
and approved, no stabilized subgrade, subbase, base, surface course, or pavement
shall be laid thereon.
2-8 Haul
No payment will be made separately or directly for haul on any part of
the work. All hauling will be considered a necessary and incidental part of the
work and its cost shall be considered by the Contractor and included in the
contract unit price for the pay items of work involved.
2752-94 2 - 6
2-9 Tolerances
In those areas upon which a subbase, base course, or surface course is
to be placed, the top of the subgrade shall be of such smoothness that, when
tested with a 16-foot straightedge applied parallel and at right angles to the
centerline, it shall not show any deviation in excess of % inch, or shall not be
more than 0.05 foot from true grade as established by grade hubs or pins. Any
r deviation in excess of these amounts shall be corrected by loosening, adding, or
removing materials, reshaping, and recompacting by sprinkling and rolling.
3. TOPSOIL
Topsoil shall be salvaged from stripping or other grading operations.
r Topsoil shall be the surface layer of soil with no admixture of refuse or any
material toxic to plant growth, and it shall be reasonably free from subsoil and
stumps, roots, brush, stones (2 inches or more in diameter), clay lumps or
similar objects. Brush and other vegetation which will not be incorporated with
l the soil during handling operations shall be cut and removed. Ordinary sods and
l herbaceous growth such as grass and weeds are not to be removed but shall be
thoroughly broken up and intermixed with the soil during -handling operations.
All areas outside the paved areas within the grading limits shall be
topsoiled unless otherwise shown on the plans or otherwise directed by the
Owner's Representative.
Suitable equipment necessary for proper preparation and treatment of the
ground surface, stripping of topsoil, and for the handling and placing of all
required materials shall be on hand, in good condition, and approved by the
Owner's Representative before the various operations are started.
Immediately prior to dumping and spreading the topsoil on any area, the
6 surface shall be loosened by discs or spike -tooth harrows, 'or by other means
approved by the Owner's Representative, to a minimum depth of 2 inches to
facilitate bonding of the topsoil to the covered subgrade soil. The surface of
the area to be topsoiled shall be cleared of all stones larger than 2 inches in
any diameter and all litter or other material which may be detrimental to proper
bonding, the rise of capillary moisture, or the proper growth of the desired
planting. Limited areas, as shown on the plans, which are too compact to respond
., to these operations shall receive special scarification.
Grades on the area to be topsoiled, which have been established shall be
maintained in a true and even condition. Where grades have not been established,
the areas shall be smooth -graded and the surface left at the prescribed grades,
in an even and properly compacted condition to prevent, insofar as practical, the
formation of low places or pockets where water will stand.
Prior to the stripping of topsoil from designated areas, any vegetation,
briers, stumps and large roots, rubbish or stones found on such areas, which may
interfere with subsequent operations, shall be removed using methods approved by
the Owner's Representative. Heavy sod or other cover, which cannot be
incorporated into the topsoil by discing or other means shall be removed.
2752-94 2 - 7
The Contractor shall remove topsoil from the designated areas and to the
depth as directed by the Owner's Representative. The topsoil shall be spread on
areas already tilled and smooth -graded, or stockpiled in areas approved by the
Owner's Representative. Any topsoil stockpiled by the Contractor shall be
rehandled and placed without additional compensation.
In unpaved excavation areas, at least the upper 4 inches of material shall
be topsoil, unless otherwise shown on the plans or stated in the special
provisions. Spreading shall not be done when the ground or topsoil is frozen, ✓-
excessively wet, or otherwise in a condition detrimental to the work.. Spreading
shall be carried on so that turfing operations can proceed with a minimum of soil
preparation or tilling.
After spreading, any large, stiff clods and hard lumps shall be broken with
a pulverizer or by other effective means, and all stones or rocks (2 inches or
more in diameter), roots, litter, or any foreign matter shall be raked up and
disposed of by the Contractor. After spreading is completed, the topsoil shall
be satisfactorily compacted by rolling with a cultipacker or by other means
approved by the Owner's Representative. The compacted topsoil surface shall
conform to the required lines, grades, and cross sections. Any topsoil or other
dirt falling upon pavements as a result of hauling or handling of topsoil shall
be promptly removed.
No direct payment will be made for topsoil as such.
4. METHOD OF .MEASUREMENT
Subgrade preparation required for the construction of the various pavements
or base courses shall be measured and paid for on a square yard basis.
Shoulder grading, including topsoiling, shall be measured and paid for on
a square yard basis. Shoulder grading shall be measured from the new back of
curb to the adjacent limits of grading. -
Excavated material which is stockpiled and later rehandled will not be
measured :for payment. Measurement shall not be made for the yardage of material
excavated without authorization beyond normal slope lines, or the yardage of
material used for purposes other than those directed.
5. BASIS OF PAYMENT
Payment will be made at the contract unit price per square yard for subgrade
preparation. Payment will also be made -at the contract unit price per square
yard for shoulder grading.
The contract unit prices paid shall be full compensation for furnishing all
labor, materials, equipment, tools and incidentals necessary to complete this
item of work in accordance with the provisions of this Section. No additional
compensation will be allowed, nor deductions made, due to variations in the
volume of excavation and grading caused by field changes in the grades as shown
on the plans, and no additional compensation will be made or allowed for
disposing of waste or excess materials.
2752-94 2 - 8
Payment shall be made under the following items:
Subgrade Preparation, per square yard; and
Shoulder Grading, including topsoiling, per square yard.
END OF SECTION
2752-94
2 - 9
SECTION 3
FLEXIBLE BASE COURSE (CALICHE)
1. DESCRIPTION
This item shall consist of a flexible base course composed of caliche,
caliche-gravel, caliche limestone, or material of similar characteristics,
constructed on a prepared subgrade in accordance with these specifications and
in conformity with the dimensions and typical cross section shown on the plans
and with the lines and grades established for the project.
2. MATERIALS
2-1
Caliche Base Materials
The caliche base course material shall consist of caliche, caliche-
gravel, caliche limestone, or similar materials
obtained from sources approved
by the Owner's Representative prior to use of
the materials. All acceptable
7�1
material
shall be screened, and the oversized
material shall be crushed and
returned
to the screened material in such manner and proportions that will
produce a
uniform product.
Fi
The gradation of the material, as finally processed and blended, shall
meet the following requirements when tested in accordance with AASHTO T-11 and
T-27:
Sieve Designation
(square openings)
Percentage
Retained
by Weight
on Sieves
2-inch
0
1 1/2-inch
0 -
5
7/8-inch
8 -
30
1/2-inch
30 -
55
No. 4
50 -
70
No. 40
70 -
90
That portion of the material, including the blended filler, passing a
No. 40 mesh sieve shall be known as the "soil binder" and shall meet the
following requirements when prepared in accordance with Test Method Tex. 101-E:
Liquid Limit 45 maximum
Plasticity Index - 15 maximum, 3 minimum
Linear Shrinkage - 10 maximum
The caliche base course material, when tested in accordance with Test
Method Tex-116-E (Wet Ball Mill Test), shall have a maximum allowable value of
55.
2752-94 3 - 1
7
4
If necessary, the Contractor shall blend or combine materials so that
the final processed material meets all of the requirements of these
specifications. The Contractor shall make such modifications in materials and
methods as are necessary to secure a material which is capable of being compacted
into a dense and well -bonded base course.
If filler, in addition to that naturally priesent in the base course
material, is necessary for satisfactory bonding of the material, for changing the
soil constants of the material passing the No. 40 mesh sieve, or for correcting
the gradation to the limitations of the specified gradation, it shall be
uniformly blended with the base course material on the project, at the crushing
plant, or at the mixing plant. The material for such purpose shall be obtained
from sources approved by the Owner's Representative and it shall be of a
gradation necessary to accomplish the specified gradation in the final processed
material.
3. CONSTRUCTION METHODS
3-1 General
The flexible base course shall be placed where designated on the plans
or as directed by the Owner's Representative. The material shall be shaped and
thoroughly compacted within the tolerances specified.
3-2 Equipment
All equipment necessary for the proper construction of this work shall
be on the project, shall be in first-class working condition, and shall have been
approved by the Owner's Representative before construction is permitted to start.
Provision shall be made by the Contractor for furnishing water at the
site of the work using equipment of ample capacity and design to assure uniform
application.
The processing equipment shall be designed, constructed and operated and shall have sufficient capacity to thoroughly mix all materials and water in
the proportions required to produce a base course of the gradation and
consistency required.
3-3 Preparing Underlying Course
Before any base material is placed, the underlying course shall be
prepared and conditioned as specified. The underlying course shall be checked r'
and accepted by the Owner's Representative before placing and spreading
operations are started.
Grade control between the edges of the pavement shall be by grade
stakes, steel pins or forms placed in lanes parallel to the centerline of the
pavement and at intervals which will permit string lines or check boards to be
placed between the stakes, pins or forms.
To protect the underlying course and to insure proper drainage, the
spreading of the base shall begin along the centerline of the pavement on a
crowned section or on the high side of the pavement with a one-way slope.
2752-94 3 - 2
r
r
F
3-4 Materials Acceptable in Existing Condition
When the entire caliche base material is secured in a uniform and
satisfactory condition and contains approximately the required moisture, such
approved material may be moved directly to the spreading equipment for placing.
It is the intent of this section of the specifications to secure materials that
will not require further mixing. The moisture content of the flexible base
material shall be approximately that required to obtain maximum density, and
shall be within 2% of optimum moisture or other moisture content as directed by
the Owner's Representative. Any minor deficiency or excess of moisture may be
corrected by surface sprinkling or by aeration. In such instances, some mixing
or manipulation may be required, immediately preceding the rolling, to obtain the
required moisture content. The final operation shall be blading or dragging, if
necessary, to obtain a smooth uniform surface true to line and grade.
3-5 Ggneral Methods for Placing
The base course shall be constructed in multiple layers. Any layer
shall be not less than 3 inches nor more than 6 inches of compacted thickness.
The material, as spread, shall be of uniform gradation with no pockets of fine
or coarse materials. The base, unless otherwise permitted by the Owner's
Representative, shall not be spread more than 2,000 square yards in advance of
the rolling. Any necessary sprinkling shall be kept within this limit. No
material shall be placed in snow or on a soft, muddy or frozen course.
During the placing and spreading, sufficient caution shall be exercised
to prevent the incorporation of subgrade, shoulder or foreign material in the
base course mixture.
3-6 Finishing and Compacting
After spreading or mixing, the flexible base shall be thoroughly
compacted by rolling and sprinkling, when necessary. Sufficient rollers shall
be furnished to adequately handle the rate of placing and spreading of the base
course.
Rolling shall progress gradually from the sides to the center of:the
lane under construction, or from one side toward previously placed material by
lapping uniformly each preceding track by at least 12 inches. The rolling shall
continue until the material is thoroughly set and stable, and the base material
has been compacted to not less than 100% of maximum density as determined by the
compaction -control tests specified in ASTM D-698. Blading and rolling shall be
done alternately, as required or directed, to obtain a smooth, even, and
uniformly compacted base.
The course shall not be rolled when the underlying course is soft or
yielding or when the rolling causes undulation in the salvaged base course. When
the rolling develops irregularities that exceed 1/2-inch when tested with a
16-foot straightedge, the irregular surface shall be loosened and refilled with
the same kind of material as that used in constructing the course and again
rolled as required.
Along places inaccessible to rollers, the base material shall be tamped
thoroughly with mechanical or hand tampers..
2752-94 3 3
The sprinkling during rolling, if necessary, shall be in the amount and
by equipment approved by the Owner's Representative. Water shall not be added
in such a manner or quantity that free water will reach the underlying layer and
cause it to become soft.
All irregularities, depressions or weak spots which develop during
compaction shall be corrected immediately by scarifying the areas affected,
adding or removing material as required, reshaping, and recompacting by
sprinkling and rolling. Immediately prior to placing of surfacing, the base
shall be checked for grade and cross-section, and any deviation in excess of
three -eights (3/8) inch from grade or true cross-section shall be corrected.
"Blue -tops" set to finished base elevations shall be set by the Contractor at the
centerline and quarter points of the pavement at minimum 50-foot intervals in
order to check the base for proper grade and elevation.
3-7 Protection
Work on the flexible base course shall not be conducted during freezing
temperature nor when the subgrade is wet. When the base material contains frozen
materials or when the underlying course is frozen, the construction shall be
stopped.
Traffic may be allowed to travel on the flexible base course as
directed by the Owner's Representative, during construction. During this period,
the caliche base shall be satisfactorily maintained by the use of water trucks,
blades, drags, and such other equipment as may be required. The base course
shall be so maintained until the wearing surface is placed thereon. The surface
shall not be placed on base course that exceeds optimum moisture by two (2)
percent or more.
Hauling equipment may be routed over completed portions of the base
course, provided no damage results and provided that such equipment is routed
over the full width of the base course to avoid rutting or uneven compaction.
However, the Owner's Representative in charge shall have full and specific
authority to stop all hauling over completed or partially completed base course
when, in his opinion, such hauling is causing damage. Any damage resulting to
the base course from routing equipment over the base course shall be repaired by
the Contractor at his own expense.
3-8 Maintenance
Following the final shaping of the material, the base course shall be
maintained throughout its entire length by the use of standard motor graders and
rollers until, in the judgement of the Owner's Representative, the base meets all
requirements and is acceptable for the construction of the next course.
4. METHOD OF MEASUREMENT
The quantity of flexible base course to be paid for shall be the number of
square yards of flexible base course of the thickness specified, placed,
compacted and accepted.
2752-94 3 - 4
1
5. BASIS OF PAYMENT
Payment shall be made at the contract unit price per square yard for minimum
6-inch flexible base course, composed of new caliche base material. This price
shall be full compensation for all preparation, furnishing, hauling and placing
of flexible base course materials, and for all labor, equipment, tools, and
incidentals necessary to complete these items.
Payment will be made under the following item:
6-inch Caliche Base Course, complete in place, per square yard.
END OF SECTION
2752-94
3 - 5
7
SECTION 4
BITUMINOUS BASE AND SURFACE COURSE
1. DESCRIPTION
This item shall consist of a surface course or base course composed of
mineral aggregate and bituminous material mixed in a central mixing plant and
placed on a prepared course in accordance with these specifications and shall
conform to the lines, grades, thicknesses and typical cross sections shown on the
plans or as directed by the Owner's Representative. The Contractor shall furnish
all materials, labor, superintendence and incidentals necessary to complete the
work in accordance with the drawings and as specified herein.
2. MATERIALS
2-1 Bituminous Material
Bituminous material for the bituminous base course: and surface course
mixtures shall meet the requirements of Texas Department of Transportation, 1993
Standard Specifications for Construction of Highways, Streets and Bridges, Item
300, Asphalts, Oils and Emulsions, Viscosity Grade AC-10 Asphalt Cement, and
shall be homogeneous, free of water and shall not foam when heated to 347° F.
Bituminous material for the bituminous surface course mixture shall
further meet the requirements of Article 300.2, Latex Modified Asphalt, using
Viscosity Grade AC-10 Asphalt Cement.
2-2 Bituminous Prime and-Tac"oats
The asphalts for the bituminous prime and tack coats shall be cutback
asphalts of the rapid curing type or the medium curing type. The asphalts used
shall be in accordance with the requirements of Texas Department of
r, Transportation, 1993 Standard Specifications for Construction of Highways,
kStreets and Bridges, Item 300, Asphalts, Oils and Emulsions. The prime coat
shall be MC-30 and tack coat shall be RC-250.
Neither the prime coat nor the tack coat shall be applied when the
air temperature is below 50• F. and falling, but may be applied when the air
temperature is 40' F. and is rising. No prime coat or tack coat shall be applied
r+ when the general weather conditions, in the opinion of the Owner's
t Representative, are not suitable.
i 2-3 Bituminous Base Course (Asphalt Stabilized Basel,
General - The bituminous base course shall consist of a compacted
mixture composed of graded gravel base material from sources approved by the
Owner's Representative and bituminous material, mixed and applied while hot,
placed on a previously prepared course. Once the aggregate material source is
approved, the Contractor will not change the source without approval from the
Owner's representative. All methods employed in performing the work and all
equipment, plant and machinery used for handling materials and, executing any part
of the work shall be subject to the approval of the Owner's Representative before
2752-94 4 - 1
r
the work is started. Equipment, tools, machinery and plant shall be maintained
in first class condition, and whenever found unsatisfactory shall be changed or
improved as required.
The percent of bituminous material in the bituminous base course shall be
determined by -the Owner's Representative in accordance with Test Method Tex 126-E
and Tex 204-F or other established procedures. —
Mineral Aggregate - The mineral aggregate (graded gravel) shall be
crushed and shall be screened as necessary to meet the requirements herein
specified, and shall consist of durable aggregate particles otherwise specified
below. -
Stockpiling.Storage. Proportioning and Mixing - The processed
mineral aggregate materials shall be stockpiled on an area previously cleared of
trash, weeds and grass in order to prevent contamination of the aggregate
stockpile materials. The aggregate stockpiles shall be not less than 10-feet in
height, and constructed in layers not exceeding 18-inches in depth, or as
directed by the Owner's representative. The plant shall have and maintain at
least a'two (2) day supply of aggregate on hand unless otherwise approved by the
Owner's representative. Material shall be stockpiled in such a manner as to
prevent segregation of aggregate, and mixing of aggregate from adjacent
stockpiles or other sources. Maintaining the specified gradation requirements
for the individual stockpiles, and proportioning from these stockpiles will be
the Contractor's responsibility.
Gradation - Unless otherwise approved by the Owner's representative,
the grading of the mineral aggregate shall meet the following requirements:
The mixture shall meet the Texas Department of Transportation, 1993
Standard Specifications for Construction of Highways, Streets and Bridges, Item
345 Asphalt Stabilized Base (Plant Mix), Grade 4, with the following gradation
requirements:
Sieve Size
1 1/2"
7/8"
1/2"
No. 4
No. 40
Percent Passing by Weight
100
70-92
45 -
70
30 -
50
10 -
30
The "soil binder" shall consist of all material passing the No. 40
sieve. The soil binder shall meet the following requirements when prepared in
accordance with the Test Methods Tex-101-E procedure:
The liquid limit shall not exceed . . . . 45
The plasticity index shall not exceed 15
The linear shrinkage shall not exceed 5
Samples for testing the material shall be taken prior to the mixing
operations. Where more than one material is used, tests shall be conducted on
2752-94 4 2
r
y
f
the combined materials. The mineral aggregate shall not contain more than 0.5%
moisture prior to entering the pugmill for mixing with asphalt.
Bituminous Base Course Mixture - The mixture shall consist of a
uniform mixture of mineral aggregate and bituminous material. The mineral
aggregate will conform to the gradation and material requirements herein
specified. The bituminous material shall compose from 4% to 9% of the mixture
by weight. The design percentage shall be determined in accordance with Test
Method Tex-126-E or Test Method Tex-204-F, and procedures outlined in Texas
Department of Transportation Bulletin C-14. The percent of bituminous material
by extraction per ASTM D-2172, ASTM D-4125 Method of Test for Asphalt Content by
Nuclear Method, Test Method Tex-210-F or -Test Method Tex-126-F.
2-4 Bituminous Surface Course
General - The mineral aggregate shall be composed of coarse
aggregate, fine aggregate and, if required,mineral filler. Samples of the
coarse aggregate, fine aggregate and mineral filler shall be submitted to the
City of Lubbock Testing Laboratory for testing and approval by the Owner's
representative. Approval of other material and of the source of supply must be
obtained from the Owner's representative prior to delivery.
The combined mineral aggregate, after final processing by the mixing
plant, and prior to addition of asphalt and mineral filler, shall have a sand
equivalent value of not less than 40 when tested in accordance with ASTM D-2419.
The percent of flat and elongated pieces shall not exceed 25% when tested in
accordance with Test Method Tex-224-F.
If the index of retained strength is less than 70% when tested in
accordance with ASTM D-1075, or the tensile strength ratio is less than 70% when
tested in accordance with AASHTO T-283, the aggregate shall be rejected or
conditioned with an anti -stripping agent as approved by the Owner's
*., representative.
Prior to stockpiling of aggregates, the area shall be cleared of
trash, weeds and grass, and be relatively smooth. Aggregates shall be separated
into stockpiles of different gradation such that the grading requirements of the
6 specified type will be met when the materials are combined in the bituminous
mixture. No coarse aggregate stockpile shall contain more than 10% by weight of
material that will pass a No. 10 sieve. Fine aggregate stockpiles may contain
small coarse aggregate in the amount of up to 15% by weight, 100% of which shall
pass a 1/4-inch sieve. The coarse aggregate shall meet the material requirements
�. herein specified for coarse aggregates.
i
Coarse Aggregate - The coarse aggregate shall be that part of the
aggregate retained on the No. 10 sieve; shall consist of clean, tough, durable
fragments of crushed stone of uniform quality throughout; mixing or combining
crushed gravel and crushed stone will not be permitted. The aggregate shall be
crushed to the extent that produces a minimum of 85% crushed faces when tested
r" in accordance with Test Method Tex-460-A. The aggregate shall have a maximum
I doss of 18% when subjected to 5 cycles of the Magnesium Sulfate Test (ASTM C-88).
F2752-94 4 - 3
When tested in accordance with Test Method Tex-217-F, the amount of
organic matter, clays, loans or particles coated therewith or other undesirable
materials, shall not exceed 2%.
When the coarse aggregate is sampled during delivery to the plant,
from the stockpile, or from the cold bin, the material removed, when tested in
accordance with Test Method Tex-217-F (Part II, Decantation), shall not exceed
2%. The plasticity index of that part of the fine aggregate contained in the
coarse aggregate passing the No. 40 sieve shall not be more than 6 when tested
by ASTM D-4318. However, where the coarse aggregate contains less than 5% of the
fine aggregate, and the fine aggregate is of the same or similar material as the
coarse aggregate, the plasticity index requirements for the material passing the
No. 40 sieve may be waived by the Owner's representative in writing.
When the coarse aggregate is sampled from the hot bins and tested in
accordance with Test Method Tex-217-F (Part II, Decantation), the amount of
material removed shall not exceed 1%.
Tests performed as specified herein represent material processed or
placed until a subsequent test is performed.
The coarse aggregate shall have an abrasion of not more than 40% loss
by weight when subjected to the Los Angeles Abrasion Test, ASTM C-131. Coarse
aggregate from each source shall meet the abrasion requirements specified.
Fine Aggregate - Fine aggregate for the bituminous surface course
shall be that part of the aggregate passing the No. 10 mesh sieve and shall
consist of sand or stone screenings or a combination thereof. Sand shall be
composed of sound, durable particles free from loam, coating or other deleterious
substances. Screenings shall be of the same or similar materials as specified
for coarse aggregate. That portion of the sand passing the No. 40 sieve shall
have a plasticity index of not more than 6, when tested in accordance with ASTM
D-4318. The plasticity index of the screenings passing the No. 40 sieve shall
not be more than 9 when tested in accordance with ASTM D-4318. Fine aggregates
from each source shall meet plasticity index requirements.
Mineral Filler - Mineral filler for the bituminous surface course
shall consist of thoroughly dry stone dust, slate dust, Portland cement or other
mineral dust approved by the Owner's Representative. It shall be free from
injurious materials and shall meet the following grading requirements, when
tested in accordance with ASTM D-242:
Passing No.
30 sieve . . . . . . . . .
100%
by weight
Passing No.
80 sieve, not less than
95 -
100% by weight
Passing No.
200 sieve, not less than
70 -
100% by weight
Bituminous Surface Course Mixture - The bituminous surface course
shall consist of a uniform mixture of coarse aggregate, fine aggregate, lime and
bituminous material with latex additive. The grading of each constituent of the
mineral aggregate shall be well graded from coarse to fine, and shall not vary
from the low limit on one sieve to the high limit of the adjacent sieve, or vice
versa. The final designated gradations shall produce a relatively smooth line
2752-94 4 - 4
7
when plotted on a 0.45 power semilogarithmic gradation chart when tested in
accordance with ASTM C-136. The bituminous surface course mixture shall the
following City of Lubbock, Type C (modified), master gradation specification:
7
F
Sieve
Size
1-
3/4-
1/2-
3/8-
No.
4
No.
8
No.
16
No.
30
No.
50
No.
100
No.
200
Bitumen percent
(of
total mix)
2-5 Tests
Percent by Weight Passing
100
98 - 100
81 - 93
65 - 85
43 - 63
33 - 45
22 - 34
13 - 27
7 - 19
3 - 11
1 - 6
4.0 - 7.5
Material Certifications - The Contractor shall furnish test
certificates for bituminous materials, .latex and lime, made by a competent
commercial laboratory, on each material source, as specified in this section,
which he proposes to use before any such material is ordered or shipped. No
material may be used until such test result certificates have been examined by
the Owner's Representative and the source and quality of the material approved.
Laboratory Control - If the Contractor or supplier wishes to use a
material or source that has not previously been approved by the City of Lubbock,
he will be required to request approval in writing of the material not less than
60 days prior to anticipated use of the material. The City of Lubbock laboratory
test results shall be the sole consideration for approval of materials, mix
designs, adequacy of procedures, etc. The results of such testing shall be
evaluated and final approval given by the City Engineer.
The City of Lubbock will utilize its own testing laboratory to
monitor the plant mixing for bituminous base and surface course materials. This
laboratory control will be provided by the City of Lubbock. A representative of
the City Engineer will be at the plant with full authority to control the mixing
operation. In those instances where irregularities occur and the limits of the
specification are exceeded for aggregate, bituminous base, or bituminous surface,
appropriate corrections will be required.
Tolerances - The Owner's representative will designate the exact
grading of the aggregate and bituminous material content to be used in the
mixture (Job Mix Formula). The paving mixture produced shall not vary from the
designated grading and asphalt content by more than the tolerances allowed herein
and shall remain within the master grading specified. The respective tolerances,
based on the percent by weight of the mixture, are listed as follows:
2752-94 4 - 5
F
Material Tolerance. plus or minus
Aggregate passing
No. 4 sieve or larger . . . . . . . . . . 4 percent
Aggregate passing Nos.
8, 16, 30 or 50 sieves . . . . . . . 3 percent
Aggregate passing
Nos. 100 or 200 sieves . . . . . . . . . 2 percent
Bitumen . . . . . . . . . . . . . . . . . 0.25 percent
Extraction/Gradation Tests and Design Criteria
(1) Samples of the mixture when tested in accordance with ASTM D-
2172 shall not vary from the grading proportions of the
aggregate and the asphalt content designated by the Owner's
representative by more than the respective tolerance specified
above. Durine construction. if eradine or asphalt content
exceeds the tolerances specified herein. Production will be
discontinued until such time as the mixture has been corrected
and subsequent grading and extraction tests indicate results
within the specified tolerance. All material so constructed.
which exceeds the tolerances specified, will be removed and
replaced at no cost to the Owner.
(2) Design Method - The bituminous mixture shall be designed and
tested in accordance with these specifications and methods
outlines in Chapter III, "Marshall Method of Mix Design," Mix
Design for Asphaltic Cement, Asphalt Institute Manual MS-2,
and shall meet the following requirements when tested in
accordance with ASTM D-1559 and ASTM D-3203:
Minimum Maximum
Marshall Method
Number of blows
Each end of specimen 75
Stability, lbs. 1,800
Flow, units of'0.01" 8 14
Percent air voids 3 5
Percent voids in
mineral aggregate 13
(3) Sampling and Testing - It is the intent of this specification
that the mixture will be designed to produce a mixture of
optimum density and stability, as determined by the Owner's
representative, when tested in accordance with these
specifications and applicable ASTM procedures.
Samples of the completed pavement shall be removed from
locations designated by the Owner's representative to
determine the composition, compaction and density of the
pavement. Samples for each day or fraction thereof shall be
taken by City personnel. The Contractor shall replace the
pavement at no cost to the City. If the pavement is found to
be deficient in composition, compaction or thickness,
2752-94 4 - 6
satisfactory correction shall be made as: directed by the
Owner's representative.
Tests on Marshall specimens shall be made twice daily or as
directed by the Owner's representative to retain job control.
The mixture shall comply with the requirements specified
herein. If the laboratory stability and/or field tests of the
mixture produced has a value lower than that specified, and in
the opinion of the Owner's representative: is not due to a
change in source or quality of materials, production may
proceed, and the mix shall be changed until the
laboratory/field tests equals or exceeds the specified values.
If there is, in the opinion of the Owner's representative, an
apparent change in any material from that used in the design
mixtures, production will be discontinued until a new design
mix is determined by trial mixes.
3. EQUIPMENT
All equipment used in the construction of the bituminous base and surface
courses shall meet the approval of the Owner's Representative and be maintained
in first class condition throughout the period of construction.
The asphalt distributor shall be an approved type, self-propelled pressure
distributor, so constructed and operated as to distribute the material evenly and
smoothly in the quantity specified or directed. Suitable means for heating,
controlling the heat, determining the temperature of the contents of the tank,
adjusting and controlling the rate of application and for measuring volume of
asphalt shall be provided. The distributor shall be calibrated prior to
application of any material under these specifications or a certificate of
calibration, satisfactory to the Owner's Representative, shall be supplied by the
Contractor.
Trucks in which the material is hauled from the plant to the point of
deposition shall be tight to the material transported and so constructed that the
entire load may be quickly dumped at the point of deposition. Trucks shall be
clean of all foreign materials and maintained in a satisfactory condition.
Equipment for rolling the surface shall consist of three -wheel tandem
jj rollers weighing not less than eight (8) tons and self-propelled pneumatic
01 rollers. Other small equipment such as shovels, hand tamps and smoothing irons
shall be furnished and maintained in good condition.
4. CONSTRUCTION METHODS
4-1 Application of Bituminous Prime Coat and Bituminous Tack Coat
A bituminous prime coat shall be applied to the entire flexible
(caliche) base course surface prior to placing the bituminous surface course.
A bituminous prime coat shall not be applied to the bituminous base course
(asphalt stabilized base course).
2752-94 4 - 7
When required by the Owner's Representative, a bituminous tack coat
shall be applied to all surfaces which are to receive a bituminous base or
surface course. The tack coat shall be applied immediately prior to placing the
bituminous surface course.
The bituminous prime coat shall be applied at least 24-hours in
advance of placing the bituminous surface course. The -r-aliche base course shall
first be brought truly to the section and grade as established, and shall be
tested with a satisfactory 16-foot straightedge. Any deviation in excess of 3/8-
inch from the straightedge or from the true cross section shall be corrected by
scarifying the base, then adding or removing material, reshaping and compacting
by sprinkling and rolling. .No "scab" or "featheredge" patches will be permitted.
After correcting any defects, the base shall be cleaned of all foreign material,
and all dust and loose particles shall be swept from the surface with a rotary
broom, and other approved methods, until the surface is in a condition to receive
the prime coat. If the surface has become dry, it shall be sprinkled with water
immediately in advance of the prime coat application in order to assure uniform
spread and penetration of the asphalt.
At any time, the Owner's Representative may order proof rolling to
test the uniformity of compaction of the subgrade or base course. Proof rolling
shall be accomplished using a 25-ton pneumatic roller, or other rolling devices
as approved by the Owner's Representative. Proof rolling shall be accomplished
by the Contractor at his expense. All irregularities, depressions, or weak or
soft areas which develop during proof rolling shall be corrected immediately by
the Contractor.
When the flexible (caliche) base is in proper condition, the prime
coat shall be applied with an approved distributor at a rate of 0.25 gallons per
square yard, or as directed by the Owner's Representative. The tack coat shall
be applied at a rate of approximately 0.10 gallon per square yard, or as directed
by the Owner's Representative. The asphalt shall be applied at the temperature
recommended by the Asphalt Institute. Application by means of hose and spray
attached to the distributor will be permitted upon approval by the Owner's
Representative, in areas inaccessible to the distributor. The prime and tack
coats shall not be applied during periods of inclement weather nor on a base
which contains an excess of water. No traffic shall be permitted over the
freshly applied prime coat, but when it has penetrated and/or cured sufficiently
that the wheels of vehicles do not track or pick up oil from the surface, the
surface course may placed thereon. If the prime coat is damaged before
placing the surface course, such damage shall be repaired as directed. Prime
coats shall not be applied more than 7 days in advance of surface placing. Areas
that have been primed longer than the specified time shall be reprimed at the
Contractor's expense.
4-2 Bituminous Surface Course Laying
After the tack coat has been applied and the areas to be paved have
been put in proper condition to receive the surfacing, the bituminous surface
course mixture, heated and prepared as specified, shall be hauled to the point
of placement and placed on the prepared surface. The mixture shall be so spread
by the finishing machine in a uniform layer, that the finished thickness, as
specified, is obtained over the entire area to be surfaced, after compaction.
2752-94 4 - 8
Laying shall be by means of the mechanical finishing machine wherever this is
possible. Hand placing will be permitted where it is impracticable to operate
the finishing machine. When hand placing is used, the material shall be dumped
outside the area on which it is to be spread, and the entire load shall be spread
and shaped so that the specified amount is placed on the base. Compaction shall
be by means of lightly oiled, hot hand tamps. All contact surfaces of gutters
and structures shall be painted with a thin, uniform coating of cut -back asphalt
as required for the prime coat. The mixture when placed, shall be at a
temperature of between 300° F. and 350° F. and the dispatch of vehicles and
placing of material, shall be done in a manner which will cause as little loss
of heat as possible.
4-3 Rolling
While still hot and as soon as it will bear the weight of the roller
without undue displacement or hair cracking, the surface shall be rolled with a
three -wheel roller, as specified weighing not less than eight (8) tons. One
roller shall be provided for each two thousand (2,000) square yards of pavement
laid per day. The three -wheel roller shall be followed by a tandem roller and/or
pneumatic tired rollers, as directed by the Owner's Representative, but in any
case, the final rolling shall be done with tandem roller. Pavement shall be
rolled in a longitudinal direction, beginning at the side, and progressing toward
the crown of the pavement. Each successive trip of the roller shall overlap the
previous one by one-half (1/2) of the width of the roller wheel. Alternate trips
shall be of slightly different length. The motion of the roller shall at all
times be slow enough to avoid displacement of the hot mixture, and any
displacement occurring shall immediately be corrected by the: use of rakes and
fresh mixture, if required. Rolling shall continue until the surface has been
thoroughly compacted and is of a uniform texture and true to grade and cross
section. Adjacent to the gutters the surface shall be finished uniformly high
so that when compacted it shall be slightly above the gutter lip. The rollers
shall not be allowed to stand on pavement which has not cooled to normal
atmospheric temperature. To prevent adhesion of the surfacing to the roller, the
wheels shall be kept properly moistened with water but an excess of water will
not be permitted. Necessary precautions shall be taken to prevent the dripping
of gasoline, oil, grease, or other foreign material on the pavement either when
the rollers are in operation or when standing.
When the Owner's Representative has determined that conditions are
such that adequate compaction or surface texture is not being obtained with the
tandem or three -wheel rollers, the Contractor shall supplement these rollers with
pneumatic rollers conforming to the requirements included above. The pneumatic
roller shall follow the steel -wheel rollers while the course is still warm. The
rolling shall continue until all the surface course has been subjected to at
least three coverages, and has an in -place density of 98 percent of laboratory
density as determined by ASTM D-1188 or ASTM D-2726.
r 4-4 Joints
is Joints between successive strip
shall be carefully made in such a manner as
bond between the old and new surfaces.
unprotected end of the freshly laid mixture
is discontinued for such a length of time
h 2752-94 4 - 9
s
and between existing and new paving
to insure a thorough and continuous
The roller shall pass over the
only when the laying of the mixture
as to permit the mixture to become.
t"'
chilled. In all cases, when the work is resumed, the material laid shall be cut
back to its full depth so as to expose a fresh vertical surface. All such
surfaces, as well as the edge of a strip against which another strip is to be
placed, shall be painted with hot asphalt prior to placement of fresh material
against it. Hot smoothing irons may be used for sealing joints but in such
cases, extreme care shall be exercised to avoid burning the surface. Joints with
existing surfacing shall be constructed substantially as specified above in a
manner which will produce a smooth continuous surface between :the old and new
sections.
In making the joint between existing pavements and the new surfacing,
the old pavement shall be sawed to a straight line. Transverse joint shall also
be sawed when new surfacing is being adjoined to surfaces which have been in
place more than 12 hours, or if the old joint has been damaged or is dirty.
4-5 Surface Tests
The surface of the pavement after compaction, shall be true to the
grades and cross sections as established, and when tested with a sixteen (16)
foot straightedge, shall have no deviation in excess of one -sixteenth (1/16) inch
per foot measured from the nearest point of contact, and the maximum ordinate
measured from the face of the straightedge shall not exceed one -quarter (1/4)
inch at any point. Any humps or depressions exceeding the specified tolerance
or which retain water on the surface, shall be corrected by removing the
defective work, replacing with new material and recompacting as directed by the
Owner's Representative, all at the expense of the Contractor.
4-6 Cleanup
After the completion of placement of the wearing course, all debris
resulting from the construction shall be cleaned up and removed from the site of
the work. Areas, which have been disturbed during the construction, shall be
raked or graded as required and left in a clean and neat condition. Gutters
shall be cleaned of all dirt, aggregate, or other material which would clog the
gutter. The entire premises of the work shall be left in a clean condition
satisfactory to the Owner's Representative, and all costs of a cleanup shall be
borne by the Contractor.
5. METHOD OF MEASUREMENT
The quantity of bituminous base course and surface course to be paid for
will be the number of square yards of base course or surface course of the
thickness specified, completed and accepted. Bituminous prime and tack coats
will not be measured and paid for separately. Bituminous prime and tack coats
will be included in the unit price bid for bituminous surface course.
6. BASIS OF PAYMENT
Payment for bituminous base course and bituminous surface course shall be
made at the contract unit price per square yard of each material placed, for the
thicknesses specified. Payment for bituminous prime coat and bituminous tack
coat shall be made at the contract unit price per square yard of each material
placed. The prices shall be full compensation for furnishing all materials, for
2752-94 4 - 10
all preparation, mixing, delivering, and placing of these materials, and for all
labor, equipment, tools and incidentals necessary to complete the item.
Payment will be made under the following items:
9-inch Bituminous Base Course (Asphalt Stabilized Base Course),
complete in place, per square yard; and
1%-inch Bituminous Surface Course, including prime and tack coats,
complete in place, per square yard.
2752-94
END OF SECTION
4 - 11
r
F
F
F
7
SECTION 5
PORTLAND CEMENT CONCRETE
1. DESCRIPTION
This work shall consist of pavement composed of portland cement concrete,
with or without reinforcement as shown on the plans constructed in accordance
with these specifications and shall conform to the lines, grades, thicknesses,
and typical cross sections shown on the plans. Concrete pavement shall be
constructed with the use of conventional stationary forming as specified herein.
The slip -form method of pavement construction will not be allowed.
2. MATERIALS
2-1 FineneAggregate
Fine aggregate for concrete shall conform to the requirements of ASTM
C33 and shall meet the requirements of Table 1.
Table 1. - Requirements for Gradation of Fine Aggregates
Sieve Designations
Percentage
By Weight
(square openings)
Passing
Sieves
3/8-inch
100
No. 4
95 -
100
No. 8
80 -
100
No. 16
50 -
85
No. 30
25 -
60
No. 50
10 -
30
No. 100
2 -
10
2-2 Coarse Aggregate
Coarse aggregate shall conform to the requirements of ASTM C33 and Item
No. 360, Concrete Pavement, of the Texas Department of Transportation 1993
Standard Specifications for Construction of Highways, Streets and Bridges.
Gradation shall be in accordance with Table 2.
2752-94 5 - 1
Table 2. - Requirements for Gradation of Coarse Aggregates
Concrete
Sieve
Designations
Percentage By Weight Passing Sieves
(square
openings)
1%-inch - No.4
2-inch
100
1-1/2-inch
95 - 100
1-inch
---
3/4-inch
35 - 70
1/2-inch
---
3/8-inch
10 - 30
No. 4
0 - 5
The aggregate shall have a maximum loss of 18% when subjected to 5
cycles of the Magnesium Sulfate Soundness Test (ASTM C-88)
The percentage of wear shall be no more than 40 when tested in
accordance with ASTM C131 or ASTM C535. _
Aggregates delivered to the mixer shall consist of crushed stone,
crushed gravel, or natural sand. Crushing shall result in a product in which the
coarse aggregate shall have at least 95% by weight of particles with one or more
fractured faces and 75% by weight of particles with two or more fractured faces.
The aggregate shall be composed of sound, tough, durable particles and shall meet
the requirements for deleterious substances given in ASTM C33. The aggregate in
any size group shall not contain more than 8 percent by weight of flat or
elongated pieces. A flat or elongated particle is one having a ratio between the
maximum and the minimum dimensions of a circumscribing rectangular prism
exceeding 5 to 1.
2-3 Cement
Cement shall conform to the requirements of ASTM C150, Type I or Type
III, standard brand of cement. If the use of high, early strength cement is not
required by these specifications, and the Contractor desires to use it, he shall
obtain written permission of the Owner's Representative and shall assume all
additional costs incurred by the use of such cement. If Type III cement is used,
the average 7-day strength shall be higher than the average 3-day strength.
The Contractor shall furnish vendors' certified test reports for each
carload, or equivalent, of cement shipped to the project. The report shall be
delivered to the Owner's Representative before permission to use the cement is
granted. All such .test reports shall be subject to verification by testing
sample materials received for use on the project.
If, for any reason, cement becomes partially set or contains lumps of
caked cement, it shall be rejected. Cement salvaged from discarded or used bags --
shall not be used.
2752-94 5 - 2
r
i.
2-4 Premolded Joint Filler
Premolded joint filler for expansion joints shall conform to the
requirements of ASTM D1751 or ASTM D1752 as specified and shall be punched to
admit the dowels where called for on the plans. The filler for each joint shall
be furnished in a single piece for the full depth and width required for the
joint, unless otherwise specified by the Owner's Representative. When the use
of more than one piece is authorized for a joint, the abutting ends shall be
fastened securely and held accurately to shape by stapling; or other positive
fastening means satisfactory to the Owner's Representative.
2-5 Joint Sealer
The joint sealer for the joints in the concrete pavement shall be in
accordance with Section 7,-JOINT SEALING FILLER, of these specifications and
shall be of the type specified.
2-6 Steel Reinforcing;
Bar mats for steel reinforcing shall conform to the requirements of
ASTM A184 fabricated with bars conforming to the requirements of ASTM A615 or
A616, Grade 60. Welded wire fabric for steel reinforcing shall conform to the
requirements of ASTM A497 using deformed wire in both directions.
Splices for bars shall be made as shown on the plans by lapping the
bars the required amount and securely wiring them together. Where details of
splices are not shown or where unanticipated splices are required, they shall be
l made in a location approved by the Owner's Representative and the length of lap
shall be 30 bar diameters, but not less than 12 inches.
Welded wire fabric shall be placed as shown on the drawings. Adequate
methods for proper placing of the fabric and for maintaining proper position
during placement of concrete will be required and shall be subject to approval
of the Owner's Representative. Welded wire fabric shall overlap at splices a
distance not less than the spacing of the cross wires plus 2 inches.
2-7 Fiber Reinforcement
Fiber reinforcement shall be 100 percent virgin polypropylene collated,
fibrillated fibers specifically manufactured for use as concrete reinforcement,
containing no reprocessed olefin materials. The physical characteristics of the
fiber to be used shall be as follows: specific gravity: 0.91; tensile strength:
70 to 110 ksi; length of fibers: %-inch.
Fibrous concrete reinforcement materials provided by this section shall
produce concrete conforming to the requirements for each type and class of
concrete listed. Quantities of fibers used shall conform. to manufacturer's
recommendations, unless otherwise directed by the Owner's Representative.
2-8 Smooth Dowel Bars
Unless otherwise specifically shown on the plans all dowel bars shall
be plain round bars conforming to the requirements of ASTM A615, Grade 60.
Dowels shall be fabricated or cut to length at the shop or mill prior
to delivery to the site. Dowels shall be free of loose flaky rust and loose
scale, and shall be clean and straight. Dowels shall be free of any burring or
2752-94
5 - 3
deformation. .Before delivery to the construction site, a minimum of two-thirds
of the length of each dowel bar shall be painted with one coat of zinc -chromate
paint. If plastic or epoxy -coated steel dowels are used, no paint coating is
required, except when specified for a particular situation on the contract plans.
Coated dowels shall conform to the requirements given in AASHTO M254.
Split dowels, used at the Contractor's option, shall be of the threaded
type, of approved design.- The external and internal threaded portion of the
split dowels shall conform to the thread designation as defined in the National
Bureau of Standards Handbook H28.
The sleeves for dowel bars at expansion joints shall be metal of an
approved design to cover 2 to 3'.inches of the dowel', with a closed end, and with
a suitable stop to hold the end of the bar at least 1 inch from the closed end
of the sleeve. Sleeves shall be of such design that they will not collapse
during construction.
The diameter and length of the smooth dowel bars shall be as follows:
Nominal Pavement
Thickness Diameter Length Spacing
(inches) (inches) (inches) (inches)
6- 7 3/4 18 12
8-12 1 19 12
2-9 Deformed Dowel Bars
Deformed bars shall be used for dowel bars only in the locations
specifically noted on the plans. The deformed bars shall conform to the
requirements of ASTM A615, Grade 60. Deformed dowel bars may be sheared to
length.
2-10 Tie Bars
Tie bars shall conform to the requirements of ASTM A615, Grade 60.
2-11 Water
Water used in mixing or curing shall be clean and free of oil, salt,
acid, alkali, sugar, vegetable, or other substances injurious to the finished
product.-- If. the water is. of questionable quality, it shall be tested in
accordance with and shall meet the suggested requirements of AASHTO'T 26. Water
..testing shall be done at the discretion of the Owner's Representative. Water
known.to be of potable quality may be used without testing.. Where the source of
water is relatively shallow, the intake shall be so enclosed as to exclude silt,
mud, grass, or other foreign materials.
2-12.Cover Material for Curing
Curing materials shall conform to one of the following specifications:
(a) Liquid membrane -forming compounds for curing concrete shall
conform to the requirements of ASTM C309, Type 2 (all resin base).
2752-94 : 5 - 4
(b) White polyethylene film for curing concrete shall conform to the
requirements of ASTH C171.
rr
(c) White burlap -polyethylene sheeting for curing concrete shall
conform to the requirements of ASTH C171.
(d) Waterproof paper for curing concrete shall conform to the
requirements of ASTH C171.
2-13 Admixtures
The use of any material added to the concrete mix shall be approved by
the Owner's Representative. The Contractor shall submit certificates indicating
that the material to be furnished meets all of the requirements indicated below.
In addition, the Owner's Representative may require the Contractor to submit
d
complete test data from an approved laboratory showing that the material to be
furnished meets all of the requirements of the cited specifications. Subsequent
tests will be made of samples taken by the Owner's Representative from the supply
of the material being furnished or proposed for use on the: work to determine
whether the admixture is uniform in quality with that approved. Admixtures shall
not be used to replace cement.
(a) Air -Entraining Admixtures. Air -entraining admixtures shall meet
the requirements of ASTH C260 and shall be added to the mixer in the amount
necessary to produce the specified air content. The air -entraining agent and the
I
water reducer admixture shall be compatible.
(b) Water -Reducing Admixtures. Water -reducing, set -controlling
admixtures shall meet the requirements of ASTM C494, Type A, water -reducing or
Type D, water -reducing and retarding. Water -reducing admixtures shall be added
at the mixer separately from -air -entraining admixtures in accordance with the
manufacturer's printed instructions.
(c) High -Range Water -Reducing Admixtures. High -range water -reducing
r'r admixtures (super plasticizer) shall meet the requirements of ASTM C494, Type F
or Type G. The high -range water -reducing admixture and the air entraining agent
shall be compatible.
3. CONSTRUCTION METHODS
3-1 General
The Contractor shall furnish all labor, materials and services
necessary for and incidental to the completion of all work as shown on the
drawings and specified herein. All machinery and equipment owned or controlled
by the Contractor, which he proposed to use on the work, shall be of sufficient
size to meet the requirements of the work, and shall be such as to produce
satisfactory work; all work shall be subject to the inspection and approval of
the Owner's Representative. The Contractor shall employ, at all times, a
sufficient force of workmen of such experience and ability that the work can be
prosecuted in a satisfactory and workmanlike manner.
2752-94
5 - 5
3-2 Equipment.
Equipment and tools necessary for handling materials and performing all
parts of the work shall be approved by the Owner's Representative as to design,
capacity, and mechanical condition. The equipment shall be at the job site
before the start of construction operations for examination and approval.
(a) Batching Plant and Equipment.
(1) General. The batching plant shall include bins, weighing
hoppers, and scales for the fine aggregate and for each size of coarse aggregate.
If bulk cement is used, a bin, hopper,'and separate scale for cement shall be
included. The weighing hoppers shall be_properly sealed and .vented to preclude
dusting during operation.
(2) Bins and hopper. Bins with adequate separate compartments
for fine aggregate and for each required size of coarse aggregate .shall be
provided in the batching plant. Each compartment shall discharge efficiently and '-
freely into the weighing hopper. Means of.control shall be provided so that, as
the quantity desired in the weighing hopper is approached, the material may be
added slowly and shut off with precision. A port or other opening for removing
an overload of any one of the several materials from the hopper shall be
provided. Weighing hoppers shall be constructed to eliminate accumulations of
materials and to discharge fully.
(3) Scales. The scales for weighing aggregates and cement shall
be of either the beam or the springless dial type. They shall be accurate within
0.5 percent throughout their range of use. When beam -type scales are used,
provisions such as a "telltale" dial shall be made for indicating to the operator
that the required load in the weighing hopper is being approached. A device on
,,the weighing beams shall clearly indicate critical position. Poises shall be
designed to be locked in any position and to prevent unauthorized change. The
weight beam and "telltale" device shall be in full view of the operator while
.charging the hopper, and the operator shall have convenient access to all
controls.
Scales shall be inspected and sealed as often as the Owner's
Representative may deem necessary to assure their continued accuracy. The
Contractor shall have on hand not less than ten 50-pound weights. These weights
shall be used for testing of all scales as directed by the Owner's
Representative.
(b) Mixers
(1) General. Concrete may be mixed at a central plant, or wholly
or in part in truck mixers. Each mixer shall have attached in a prominent place
a manufacturer's nameplate showing the capacity of the drum in terms of volume
of mixed concrete and the .speed of rotation of the mixing drum or blades.
A device accurate within 3 percent and satisfactory to the
Owner's Representative shall be provided at the mixer for determining the amount
of air -entraining agent or other admixture to be added to each batch. --
2752-94 5 - 6 _
Mixers shall be examined daily for the accumulation of hard
concrete or mortar and the wear of blades.
(2) Central plant mixer. Mixing shall be in an approved mixer
capable of combining the aggregates, cement, and water into a thoroughly mixed
and uniform mass within the specified mixing period, and of discharging the
mixture without segregation. Central plant mixers shall be equipped with an
acceptable timing device that will not permit the batch to be discharged until
the specified mixing time has elapsed. The water system for a central mixer
shall be either a calibrated measuring tank or a meter and shall not necessarily
be an integral part of the mixer.
The mixers shall be cleaned at suitable intervals and shall
° be examined daily for changes in condition due to accumulation of hard concrete
�• or mortar or wear of blades. The pickup and throwover blades shall be replaced
when they have worn down 3/4-inch or more. The Contractor shall have a copy of
the manufacturer's design on hand showing dimensions and arrangement of blades
in reference to original height and depth.
(3) Truck mixers and truck agitators. Truck mixers used for
mixing and hauling concrete and truck agitators used for hauling central -mixed
concrete shall conform to the requirements of ASTM C94.
(4) Nonag,,itator trucks. Nonagitating hauling equipment shall
conform to the requirements of ASTM C94.
7 (c) Finishing Equipme
(1) Finishing machine. The finishing machine shall be equipped
with one or more oscillating -type transverse screeds.- In lieu of a finishing
machine, a vibratory screed, supplemented by hand-held vibrators, will be allowed
for pavements constructed with concrete containing super -plasticizer. An
adequate number of hand-held vibrators shall be provided to insure adequate
r consolidation of the concrete.
(2) Vibrators. For side -form construction, vibrators shall be
r,,, the internal type with either immersed tube or multiple spuds, for the full width
t of the concrete slab. They may be attached to the spreader or the finishing
machine, or they may be mounted on a separate carriage. They shall not come in
contact with the joint, load -transfer devices, subgrade, or side forms.- The
j" frequency of the internal type shall not be less than 7,000 vibrations per minute
for spud vibrators. When spud -type internal vibrators are used adjacent to the
side forms, they shall have a frequency of not less than 3,500 vibrations per
r minute. Hand vibrators should be used to consolidate the concrete along forms
and other isolated areas.
(d) Concrete Saw. When sawing of joints is specified, the Contractor
shall provide sawing equipment adequate in number of units and power to complete
the sawing to the required dimensions and at the required rate. The Contractor
shall provide at least one standby saw in good working order. An ample supply
of saw blades shall be maintained at the site of the work at all times during
sawing operations. The Contractor shall provide adequate artificial lighting
2752-94 5 - 7
f
facilities for night sawing. All of this equipment shall be on the job both
before and at all times during concrete placement.
(e) Forms. Straight side forms shall be made of steel having a
thickness of not less than 7/32-inch and shall be furnished in sections not less
than 10 feet in length. Forms shall be in one piece for the full depth required _
except as hereinafter permitted. Where the drawings require several different
thicknesses for the same slab, forms may be built up with metal or wood to
provide an increase in depth of not more than 25 percent. The required form
depth may be obtained by securely bolting or welding to the bottom of the form
a tubular metal section of the proper thickness or by securely bolting wood
planks to the bottom of the form. The tubular metal section or wood planks shall
completely cover the underside of the base of the form and shall extend beyond
the edge of the base a sufficient distance to provide the necessary stability.
The base width of the one-piece form, or built-up form, shall be not less than
eight -tenths of the vertical height of the form, except that forms 8 inches or
less in vertical height shall have a base width not less than the vertical height
of the form. Flexible or curved forms of proper radius shall be used for curves
of 100-foot radius or less. Flexible or curved forms shall be of a design
acceptable to the Owner's Representative. Forms shall be provided with adequate
devices for secure settings so that when in place they will withstand, without
visible spring or settlement, the impact and vibration of the spreading,
consolidating and finishing equipment. Flange braces shall extend outward on the _
base not less than two-thirds the height of the form. Forms with battered top
surfaces and bent, twisted, or broken forms shall be removed from the work.
Repaired forms shall not be used until inspected and approved. Built-up forms
shall not be used, except as approved by the Owner's Representative. The top —
face of the form shall not vary from a true plane more than 1/8-inch in 10 feet,
and the upstanding leg shall not vary more than 1/4-inch. The forms shall
contain provisions for locking the ends of abutting sections together tightly for
secure setting.
3-3 Form Setting
Forms shall be set sufficiently in advance of the concrete placement
to insure continuous paving operation. After the forms have been set to correct
grade, the grade shall be thoroughly tamped, either mechanically or by hand, at
both the inside and outside edges of the base of the forms. Forms shall be
staked into place with not less than 3 pins for each 10-foot section. A pin
shall be placed at each side of every joint.
Form sections shall be tightly locked and shall be free from play or
movement in any direction. The forms shall not deviate from true line by more
than 1/4-inch at any point. Forms shall be so set that they will withstand,
without visible spring or settlement, the impact and vibration of the
consolidating and finishing equipment. Forms shall be cleaned and oiled prior
to the placing of concrete.
The alignment and grade elevations of the forms shall be checked and
corrections made by the Contractor immediately before placing the concrete, When
any form has been disturbed or any grade has become unstable, the form shall be
reset and rechecked. --
2752-94 5 - 8
3-4 Conditioning of Underlying Course
The prepared grade shall be well moistened with water, without
saturating, immediately ahead of concrete placement to prevent rapid loss of
moisture from the concrete. Ruts or depressions in the subgrade or subbase
caused by hauling or usage of other equipment shall be filled as they develop
with suitable material (not with concrete or concrete aggregates) and thoroughly
compacted by rolling in accordance with applicable sections of these
specifications. The underlying course shall be accurately cut to grade and all
excess material shall be removed prior to concrete construction. Low areas may
be filled and compacted in a manner approved by the Owner's Representative, to
a condition equal to that of the surrounding grade or, if permitted, filled with
concrete integral with the pavement•.
In cold weather, the underlying subbase shall be protected so that it
will be entirely free from frost when the concrete is placed. The use of
chemicals to eliminate frost in the underlying material will not be permitted.
At anytime, the Owner's Representative may order proof rolling to test
the uniformity of compaction of the subgrade or base course. Proof rolling shall
be accomplished using a 25-ton pneumatic roller, or other rolling devices as
approved by the Owner's Representative. Proof rolling shall be accomplished by
the Contractor at his expense. All irregularities, depressions, or weak or soft
areas which develop during proof rolling shall be corrected immediately by the
Contractor.
3-5 Handling, Measuring, and Batching Material
�.. The batch plant site, layout, equipment, and provisions for
r! transporting material shall assure a continuous supply of material to the work.
Stockpiles shall be built up in layers of not more than 3 feet in thickness.
Each layer shall be completely in place before beginning the next layer and shall
not be allowed to "cone" down over the next lower layer. Aggregates from
different sources and of different grading shall not be stockpiled together.
Improperly placed stockpiles will not be accepted.
The Contractor shall maintain a stockpile of aggregates for ten days
of concrete construction.
Aggregates shall be handled from stockpiles or other sources to the
batching plant in such manner to secure the specified grading of the material.
Aggregates that have become segregated or mixed with earth or foreign material
shall not be used. All aggregates produced or handled by hydraulic methods, and
washed aggregates, shall be stockpiled orbinnedfor draining at least 12 hours
before being batched. Rail shipments requiring more than 12 hours will be
accepted as adequate binning only if the car bodies permit free drainage. The
fine aggregate and coarse aggregate shall be separately weighed into hoppers in
the respective amounts set by the Owner's Representative in the job mix. Cement
shall be measured by weight. Separate scales and hopper, with a device to
positively indicate the complete discharge of the batch of cement into the batch
box or container, shall be used for weighing the cement.
When required by the contract or when permitted, batching plants shall
be equipped to proportion aggregates and bulk cement, by weight, automatically
2752-94 5 - 9
using interlocked proportioning devices of an approved type. When bulk cement
is used, the Contractor shall use a suitable method of handling the cement from
weighing hopper to transporting container or into the batch itself for
transportation to the mixer, such as a chute, boot, or other approved device, to
prevent loss of cement. The device shall be arranged to provide positive
assurance of the actual presence in each batch of the entire cement content
specified.
When cement is placed in contact with the aggregates, batches may be
rejected unless mixed within 1-1/2 hours of such contact. Batching shall be
conducted so that the results in the weights of each material required will be
within a tolerance of 1 percent for cement and 2 percent for aggregates.
Water may be measured either by volume or by weight. The accuracy of
measuring the water shall be within plus or minus l percent of required amounts.
Unless the water is to be weighed, the water -measuring equipment shall include
an auxiliary tank from which the measuring tank shall be filled. The measuring
tank shall be equipped with an outside tap and valve to provide for checking the
setting, unless other means are provided for readily and accurately determining
the amount of water in the tank. The volume of the auxiliary tank shall be at
least equal to that of the measuring tank.
Methods and .equipment for adding air -entraining agent or other
admixtures to the batch, when required, shall be approved by the Owner's
Representative. All admixtures shall be measured into the mixer with an accuracy
of plus or minus 3 percent.
Fiber reinforcement shall be added to the concrete mixture at the batch
plant by methods, and at quantities recommended by fiber manufacturer. Fibers
shall be thoroughly mixed into the concrete.
3-6 Proportions
Proportioning requirements for concrete shall be designed for the
following compressive strengths at 28 days:
Class A Concrete
(30-inch curb and gutter, 30-inch gutter,
4-inch sidewalks and wheelchair ramps) . . . . 3,000 psi
Class C Concrete
(Portland cement concrete pavement and
6-inch miscellaneous concrete slabs) . . . . 3,600 psi
The proportioning requirements for Class C concrete shall also be
designed to achieve a minimum 3,000 psi compressive strength at 7-days and for
Class A concrete to achieve a minimum 2,100 psi compressive strength at 7-days.
Prior to the start of paving operations and after approval of all
material to be used in the concrete,.the Contractor shall submit to the Owner's
Representative for approval, test certificates from an approved commercial
laboratory, on each of the concrete mixes proposed for use on the project. The
Owner's Representative will review all concrete mix designs- No concrete shall
2752-94 5 - 10
I I I I .
.l! ..
r
f "f
be produced for use on the project prior to approval of a mix design by the
Owner's Representative. Concrete mix test certifications shall include tests
made on six (6) compressive strength test specimens (cylinders). Three (3)
cylinders for each design shall be tested at 7 days and three (3) at 28 days.
The costs of preconstruction mix designs and tests shall be borne by the
Contractor.. Additional test certificates shall be furnished by the Contractor
at his expense if the material source is changed or -if the construction phase
tests indicate marked variations from the original preconstruction tests.
Compressive strength shall be as specified above for the various classes of
concrete at 28 days using test cylinders prepared in accordance with ASTM C31 and
tested in accordance with ASTM C39. The mixes determined shall be workable
concrete having a slump range of 3 to 5 inches for Class A concrete, and a slump
range of 1 to 2-1/2 inches for Class C concrete. Slumps shall be as determined
by ASTM C143. If high -range water -reducing admixtures (superplasticizers) are
used, the initial slump range of 1 to 2-1/2 inches for Class C concrete shall not
exceed 5 inches after the addition of the high -range water -reducing admixture.
The minimum cement content shall be maintained to produce concrete of
suitable durability and workability. The maximum water -cement ratio specified
for concrete shall not be exceeded. Entrained air shall be required to increase
durability and provide workability.
The cement content and the water -cement ratio, including free surface
i"
moisture on the aggregates but not including moisture
absorbed by
the aggregates,
shall be in accordance with the following. The
cement content shall be
determined in accordance with ASTM C138.
Class A
Class
Minimum sack cement per cubic yard
5
5.5
Maximum gallons water per sack of cement
6.5
5.5
7
F.
Air -entraining admixture shall be added in such a manner that will
insure uniform distribution of the agent throughout the batch. The air content
of freshly mixed air -entrained concrete shall be based upon trial mixes with the
materials to be used in the work adjusted to produce concrete of the required
plasticity and workability. The percentage of air entrainment in the mix shall
be 5-1/2 percent plus or minus 1-1/2 percentage points. Air content shall be
determined by testing in accordance with ASTM C231 for gravel and stone coarse
aggregate and ASTM C173 for highly porous coarse aggregate. All concrete shall
be air -entrained concrete.
3-7 Field Test Specimens
During construction, concrete samples shall be taken in the field to
determine the consistency, air content and strength of the concrete. Compressive
strength test specimens shall be made each day that concrete is placed. Test
specimens will be made entirely at the discretion of the Owner's Representative.
Each strength test shall consist of five (5) test cylinders made from the same
batch of concrete. The test cylinders shall be molded in accordance with ASTM
C31. At the start of concrete operations or when the aggregate: source, aggregate
characteristics or mix design is changed, additional groups of test cylinders may
be required until the Owner's Representative is satisfied that the concrete
2752-94 5 - 11
7
mixture being used complies with the strength requirements of these
specifications.
Concrete pavement shall be tested for compressive strength on a lot
basis. A lot will consist of each day's production. Two sets of cylinders,
consisting of five (5) cylinders each, will be made for each lot. Random samples
will be taken from the plastic concrete at the site in accordance with accepted
statistical procedures.
When it appears that the test specimens will fail to conform to the
requirements for strength, the Owner's Representative shall have the right to
order changes in the concrete sufficient to increase the strength to meet these
requirements. When a satisfactory relationship between 7-day and 28-day
strengths has been established and approved, the 7-day test results may be used
as an indication of the 28-day strengths. However, the 7-day test results will
not replace the results of the 28-day tests if the 28-day results fall below the
requirement.
3-8 Mixing Concrete _
The concrete may be mixed in a central mix plant or in truck mixers.
The mixer shall be of an approved type and capacity. Mixing time shall be
measured from the time all materials, except water, are emptied into the drum.
Ready -mixed concrete shall be mixed and delivered in accordance with the
requirements of ASTM C94, except that the minimum required revolutions of the
mixing speed for transit mixed concrete may be reduced to not less than that
recommended by the mixer manufacturer. The number of revolutions recommended by
the mixer manufacturer shall be indicated on the manufacturer's serial plate
attached to the mixer. The Contractor shall furnish test data acceptable to the
Owner's Representative verifying that the make and model of the mixer will
produce uniform concrete conforming to the provisions of ASTM C94 at the reduced
number of revolutions shown on the serial plate.
When mixed in a central mixing plant, the mixing time shall not be less
than 50 seconds nor more than 90 seconds. Mixing time ends when the discharge
chute opens. Transfer time in multiple drum mixers is included in mixing time.
The contents of an individual mixer drum shall be removed before a succeeding
batch is emptied therein.
The mixer shall be operated at the drum speed as shown on the
manufacturer's nameplate on the approved mixer. Any concrete mixed less than the
specified time shall be discarded at the Contractor's expense. The volume of
concrete mixed per batch shall not exceed the mixer's nominal capacity in cubic
feet, as shown on the manufacturer's standard rating plate on the mixer. An
overload up to 10 percent above the mixer's nominal capacity may be permitted
provided concrete test data for segregation and uniform consistency are
satisfactory, and provided no spillage of concrete takes place. The batch shall
be charged into the drum so that a portion of the mixing water shall enter in
advance of the cement and aggregates.The flow of water shall be uniform, and
all water shall be in the drum by the end of the first 15 seconds of the mixing
period. The throat of the drum shall be kept free of such accumulations as may
restrict the free flow of materials into the drum.
2752-94 5 - 12
t
Mixed concrete from the central mixing plant shall be transported in
truck mixers, truck agitators, or nonagitating trucks. The time elapsing from
the time water is added to the mix until the concrete is deposited in place at
the work site shall not exceed 30 minutes when the concrete is hauled in
nonagitating trucks, nor 60 minutes when the concrete is hauled in truck mixers
or truck agitators. Retempering concrete by adding water or by other means will
not be permitted. All these operations must be performed within 45 minutes after
the initial mixing operations and the water -cement ratio must not be exceeded.
Admixtures for increasing the workability or for accelerating the set will be
permitted only when specified in the contract.
3-9 Limitations of Mixing
No concrete shall be mixed, placed, or finished when the natural light
is insufficient, unless an adequate and approved artificial lighting system is
operated.
Unless authorized in writing by the Owner's Representative, mixing and
concreting operations shall be discontinued when a descending, air temperature in
the shade and away from artificial heat reaches 40 degrees F and shall not be
resumed until an ascending air temperature in the shade and away from artificial
heat reaches 35 degrees F.
When concreting is authorized during cold weather, the aggregates may
be heated by either steam or day heat prior to being placed in the mixer. The
apparatus used shall heat the mass uniformly and shall be arranged to preclude
the possible occurrence of overheated areas which might be detrimental to the
materials. Unless otherwise authorized, the temperature of the mixed concrete
shall not be less than 50 degrees F and not more than 80 degrees F at the time
of placement in the forms.
If the air temperature is 35 degrees F or less at the time of placing
concrete, the Owner's Representative may require the water and/or the aggregates
to be heated to not less than 70 degrees F nor more than 150 degrees F. Concrete
shall not be placed on frozen subgrade nor shall frozen aggregates be used in the
concrete.
During periods of warm weather when the maximum daily air temperature
is likely to exceed 85 degrees F., the following precautions shall be taken. The
forms and the underlying material shall be sprinkled with water immediately
before placing the concrete. The concrete shall be placed at the coolest
temperature practicable, and in no case shall the temperature of the concrete
when deposited in the forms exceed 90 degrees F. A retarder shall be used for
concrete deposited in the forms when the temperature of the concrete exceeds 85
degrees F. The aggregates and/or mixing water shall be cooled as necessary to
maintain the concrete temperature at or not more than the specified maximum.
Concrete shall be placed in the forms continuously and rapidly at a rate adequate
to assure finishing of the concrete prior to initial set of the concrete. The
finished surface of the newly laid pavement shall be kept damp by applying a
waterfog or mist with approved spraying equipment until the pavement is covered
by the curing medium.
2752-94 5 - 13
7
3-10 Structural and Miscellaneous Concrete
(a) Placing Concrete. All concrete shall be placed during daylight,
unless otherwise approved. The concrete shall not be placed until the depth and
character of foundation, the adequacy of forms and falsework, and the placing of
the steel reinforcing have been approved. Concrete shall be placed as soon as
practical after mixing and in no case -later than 1 hour after water has been
added to the mix. The method and manner of placing shall be such to avoid
segregation and displacement of the reinforcement. Troughs, pipes, and chutes
shall be used as an aid in placing concrete when necessary. Dropping the
concrete a distance of more than 5 feet, or depositing a large quantity at one
point, will not be permitted. Concrete shall be placed upon clean, damp
surfaces, free from running water, or upon properly consolidated soil.
The concrete shall be compacted with suitable mechanical vibrators
operating within the concrete. When necessary, vibrating shall be supplemented
by hand spading with suitable tools to assure proper and adequate compaction.
Vibrators shall be manipulated so as to work the concrete thoroughly around the
reinforcement and embedded fixtures and into corners and angles of the forms.
The vibration at any joint shall be of sufficient duration to accomplish
compaction but shall not be prolonged to the point where segregation occurs.
(b) Placing Reinforcement. All reinforcement shall be accurately
placed, as shown on the plans, and shall be firmly held in position during
concreting. Bars shall be fastened together at intersections. The reinforcement
shall be supported by approved plastic chairs. Shop drawings, lists, and bending
details shall be supplied by the Contractor when required.
(c) Embedded Items. Before placing concrete, any items that are to
be embedded shall be firmly and securely fastened in place as indicated. All
such items shall be clean and free from coating, rust, scale, oil, or any foreign
matter. The embedding of wood shall be avoided. The concrete shall be spaded
and consolidated around and against embedded items.
(d) Construction Joints. When the placing of concrete is suspended,
necessary provisions shall be made for joining future work before the placed
concrete takes its initial set. For the proper bonding of old and new concrete,
such provisions shall be made for grooves, steps, keys, dovetails, reinforcing
bars or other devices as may be prescribed. The work shall be arranged so that
a section begun on any day shall be finished during daylight of the same day.
Before depositing new concrete on or against concrete which has hardened, the
surface of the hardened concrete shall be cleaned by a heavy steel broom,
roughened slightly, wetted, and covered with a neat coating of cement paste or
grout.
(e) Defective Woxk. Any defective work disclosed after the forms have
been removed shall be immediately removed and replaced. If any dimensions are
deficient, or if any section is not constructed to the proper grade, or if the
surface of the concrete is bulged, uneven or shows honeycomb, which in the
opinion of the Owner's Representative cannot be repaired satisfactorily, the
entire section shall be removed and replaced at the expense of the Contractor.
2752-94 5 - 14
I
I
(f) Surface Finish. All exposed concrete surfaces shall be true,
smooth, free from open or rough spaces, depressions, or projections. The
concrete in horizontal plane surfaces shall be brought flush with the finished
top surface at the proper elevation and shall be struck -off with a straightedge
and floated. Mortar finishing shall not be permitted, nor shall dry cement or
sand -cement mortar be spread over the concrete during the finishing of horizontal
plane surfaces.
The surface finish
If forms can be removed while the
pointed and wetted and then rubbed
are removed. If the concrete has
r, stone shall be used to finish the
done with a rubbing machine.
F
of exposed concrete shall be a rubbed finish.
concrete is still green, the surface shall be
with a wooden float until all irregularities
hardened before being rubbed, a carborundum
surface. When approved, the finishing can be
(g) Curing and Protection. All concrete shall be properly cured and
protected by the Contractor. The work shall be protected from the elements,
flowing water, and from defacement of any nature during the building operations.
The concrete shall be cured as soon as it has sufficiently hardened by covering
with an approved material. Water -absorptive coverings shall be thoroughly
saturated when placed and kept saturated for a period of at least 3 days. All
curing mats or blankets shall be sufficiently weighted or tied down to keep the
concrete surface covered and to prevent the surface from being exposed to
currents of air. Where wooden forms are used, they shall be kept wet at all
times until removed to prevent the opening of joints and drying out of the
concrete. Traffic shall not be allowed on concrete surfaces for 7 days after the
concrete has been placed.
When concrete is placed at temperatures below 40' F., the
Contractor shall provide satisfactory methods and means to protect the mix from
injury by freezing. The aggregates, or water, or both, shall be heated in order
to place the concrete at temperatures between 50' and 100' F.
After the concrete has been placed, the Contractor shall provide
sufficient protection such as cover, canvas, framework, heating apparatus, etc.,
to enclose and protect the structure and maintain the temperature of the mix at
not less than 50' F. until at least 60% of the designed strength has been
attained.
The City Sanitation Department shall be notified of all street
struction that may obstruct or close any alley or alley return. and if
Possible, the leth of time -said all" o r�allev return shall be closed to
traffic. The Contractor shall properly barricade closed alleys and alley returns
during the period of construction and as long afterward as the Owner's
Representative may require for concrete curing. Before opening alleys or alley
returns to traffic, the Contractor shall properly fill, level and compact
excavations. In all cases, no alley or alley return shall be opened to traffic
without the approval of the Owner's Representative.
2752-94
5 - 15
3-11 Concrete_ for Pavements
(a) Placing Concrete. The concrete -shall be deposited on the
moistened grade to require as little rehandling as possible. Unless truck
mixers, truck agitators, or nonagitating hauling equipment are equipped with
means for discharge of concrete without segregation of the materials, the
concrete shall be unloaded into an approved spreading device and mechanically
spread on the grade to prevent segregation of the materials. Placing shall be
continuous between transverse joints without the use of intermediate bulkheads.
Necessary hand spreading shall be done with shovels and not rakes. Workmen shall
not be allowed to walk in the freshly mixed concrete with boots or shoes coated
with earth or foreign substances.
When concrete is to be placed adjoining a previously constructed
lane of pavement and when mechanical equipment will be operated upon the existing
lane -of pavement, the concrete shall be at least 7 days old and at a compressive
strength approved by the Owner's Representative. If only finishing equipment is
carried on the existing lane, paving in adjoining lanes may be permitted after
3 days, if approved by the Owner's Representative.
Concrete shall be thoroughly consolidated against and along the
faces of all forms and along the full length and on both sides of all joint
assemblies by means of vibrators inserted in the concrete. Vibrators shall not
be permitted to come in contact with a joint assembly, the grade, or a side form.
In no case shall the vibrator be operated longer than 15 seconds in any one
location, nor shall the vibrators be used to move the concrete.
Concrete shall be deposited as near to expansion and contraction
joints as possible without disturbing them but shall not be dumped from the
discharge bucket or hopper onto a joint assembly unless the hopper- is well
centered on the joint assembly.
Should any concrete materials fall on or be worked into the
surface of a completed slab, they shall be removed immediately by approved
methods.
(b) Strike -Off of Concrete and Placement of Reinforcement. Following
the placing of the concrete, it shall be struck off, using a finishing machine
or a vibratory screed with supplemental hand-held vibrators, to conform to the
cross section shown on the plans and to an elevation such that when the concrete
is properly consolidated and finished, the surface of the pavement shall be at
the elevation shown on the plans. When reinforced concrete pavement is placed
in two layers, the bottom layer shall be struck off to such length and depth that
the :sheet of reinforcing steel fabric or bar mat may be laid full length on the
concrete in -its final positionwithout further manipulation. The reinforcement
shall then be placed directly upon the concrete, after which the top layer of the
concrete shall be placed, struck off, and screeded. If any portion of the bottom
layer of concrete has been placed more than 30 minutes without being covered with
the top layer or if initial set has taken place, it shall be removed and replaced
with freshly mixed concrete at the Contractor's expense. When reinforced
2752-94 5 16
r
a concrete is placed in one layer, the reinforcement may be positioned,in advance
of concrete placement or it may be placed in plastic concrete by mechanical or
r vibratory means after spreading.
Reinforcing steel, at the time concrete is placed, shall be free
of mud, oil, or other organic matter that may adversely affect or reduce bond.
Reinforcing steel with rust, mill scale, or a combination of both will be
considered satisfactory, provided the minimum dimensions, weight, and tensile
properties of a hand wire -brushed test specimen are not less than the applicable
ASTM specification requirements.
(c) Joints
(1) General
a) Longitudinal and transverse joints. Longitudinal and
transverse joints shall be constructed as indicated on the plans and in
accordance with these requirements. All joints shall be constructed true to line
with their faces perpendicular to the surface of the pavement. Joints shall not
vary more than 1/4-inch from a true line or from their designated position. The
vertical surface of the pavement adjacent to all expansion joints shall be
finished to a true plane and edged to a radius of 1/4-inch or as shown on the
plans. The surface across the joints shall be tested with a In -foot straightedge
as the joints are finished and any irregularities in excess of 1/8-inch shall be
corrected before the concrete has hardened. Transverse joints shall be at right
angles to the centerline of the pavement and shall extend the full width of the
., slab. The transverse joints in succeeding lanes shall be placed in line with
similar joints in the first lane. All joints shall be so prepared, finished, or
cut to provide a groove of the width and depth shown on the plans.
The surface across the joints shall be tested with a 10-foot straightedge as the
joints are finished and any irregularities in excess of 1/8-inch shall be
corrected before the concrete has hardened. Transverse joints shall be at right
angles to the centerline of the pavement and shall extend the full width of the
r- slab. The transverse joints in succeeding lanes shall be placed. in line with
similar joints in the first lane. All joints shall be so prepared, finished, or
cut to provide a groove of the width and depth shown on the plans.
7 b) Tie bars. Tie bars shall consist of deformed bars
installed principally in longitudinal joints as shown on the plans. Tie bars
shall be placed at right angles to the centerline of the concrete slab and shall
^; be spaced at intervals as shown on the plans. They shall be held in position
parallel to the pavement surface and midway between the surfaces of the slab.
When tie bars extend into an unpaved lane, they may be bent at right angles
r., against the form at longitudinal construction joints, unless threaded bolt or
other assembled tie bars are specified. These bars shall not be painted,
greased, or enclosed in sleeves.
c) bars. ars. Dowel bars or other load -transfer units of
an approved type shall be placed across transverse or other joints in the manner
as specified on the plans. They shall be of the dimensions and spacings
�•. specified and held rigidly in the middle of the slab depth in the proper
horizontal and vertical alignment by an approved assembly device to be left
2752-94 5 - 17 -.
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r
permanently in place. The dowel or load -transfer and joint devices shall be
rigid enough to permit complete assembly, as a unit ready to be lifted and placed
into position. Dowels shall be placed by the bonded -in -place method.
Installation by removing and replacing dowels in preformed holes will not be
permitted. Dowels in longitudinal and transverse construction joints shall be
held securely in place parallel to the surface as indicated, by means of devices
fastened to the form. Dowels in expansion joints and tie bars and dowels
installed within the paving lane shall be held securely in place as indicated,
by means of rigid metal bars or wires so arranged as to provide rigid support for
the dowels throughout the paving operation, with a minimum of four continuous
bars or wires extending across the paving lane. The dowels shall be welded to
the assembly or held firmly by mechanical_ locking arrangements that will prevent
the dowels from rising, sliding out, or becoming distorted during paving
operations. The dowel assemblies shall be held securely in the proper location
by means of suitable pins or anchors. When split dowels are used, the female
portion of.the split dowel shall be securely fastened to the pavement form in
such manner as to maintain the proper position and alignment of the dowel during
concrete placement and so that no mortar or other foreign matter will enter the
socket or coupling. Prior to assembly of split dowels, the external and internal
threads shall be cleaned thoroughly to remove all cement, cement mortar, grit,
dirt, and other foreign matter. In the final assembly of the split dowels a
minimum torque of 200 foot-pounds shall be applied. The spacing of dowels in
longitudinal construction joints shall be as indicated except that where the
planned spacing cannot be maintained because of form length or interference with
form braces, closer spacing with additional dowels shall be used. Dowels in
longitudinal joints shall be omitted when the center of the dowel would be
located within a horizontal distance from a transverse joint equal to one-fourth
of slab thickness. The method used in holding dowels in position shall develop
such accuracy that the error in alignment of any dowel from its required position
after the pavement has been finished shall be not greater than 1/8-inch per foot.
The Contractor shall furnish an approved template for checking the position of
the dowels.
The portion of each dowel painted with rust preventative
paint, as required under Paragraph 2-7, shall be thoroughly coated with asphalt
MC-70, or an approved lubricant, to prevent the concrete from binding to that
portion of the dowel. If free -sliding plastic -coated or epoxy -coated steel
dowels are used, a lubrication bond breaker shall be used.
(2) Installation
The top of an assembled joint device shall be set at the
proper distance below the pavement surface and the elevation shall be checked.
Such devices shall be set to the required position and line and shall be securely
held in place by stakes or other means during the placing and finishing of the
concrete. The premolded joint material shall be placed and held in a vertical
position; if constructed in sections, there shall be no offsets between adjacent
units. Dowel bars shall be checked for exact position and alignment as soon as
the joint device is staked in place, and the device shall be tested to determine
whether it is firmly supported. The maximum permissible tolerance on dowel bar
2752-94 5 - 18
r-
r
sa
alignment in each plane, horizontal and vertical, shall not exceed 2 percent or
1/8-inch per foot of a dowel bar. Proper alignment may be obtained with well -
fabricated dowel baskets and dowel assemblies.
When joints in concrete pavements are sawed, the joints shall
be cut as shown on the plans. Equipment shall be as described in Paragraph 3-
2(d). The circular cutter shall be capable of cutting a groove in a straight
line and shall produce a slot at least 1/8-inch wide and to the depth shown on
the plans. When shown on the plans or required by the specifications, the top
portion of the slot or groove shall be widened by means of a second shallower cut
or by suitable and approved beveling to provide adequate space for joint sealers.
Sawing of the joints shall commence as soon as the concrete has hardened
sufficiently to permit cutting without chipping, spelling, or tearing. Sawing
shall be carried on both during the day and night as required. The joints shall
be sawed at the required spacing consecutively in sequence of the concrete
placement, unless otherwise approved by the Owner's Representative.
(3) Longitudinal Joints.
a) Construction. Longitudinal construction ,joints
necessary for lane construction shall be formed against suitable side forms
(usually made of steel), as indicated in the plans. Wooden forms may be.used
under special conditions, when approved by the Owner's Representative. —Where
butt -type joints with dowels are designated, the dowels for this type shall be
painted and greased. The edges of the joint shall be finished with a grooving
tool or edging tool, and a space or slot shall be formed along the joint of the
dimensions, as indicated, to receive the joint sealing material. Longitudinal
construction joints shall be sawed to provide a groove at the: top conforming to
the details and dimensions indicated on the plans. Provisions shall be made for
the installation of tie bars as noted on the plans.
b) Contraction or weakened -plane type. The longitudinal
groove sawed in the top of the slab shall be installed where indicated on the
drawings. The groove shall be sawed with approved equipment in the hardened
concrete to the dimensions required. The sawed groove shall be straight and of
uniform width and depth. The groove shall be clean cut so that spalling will be
avoided at intersections with transverse joints. Tie bars shall be installed
across these joints where indicated on the plans.
(4) Transverse Joints.
a) Expansion. Transverse expansion joints shall be
installed at the locations and spacing as shown on the plans. The joints shall
be installed at right angles to the centerline and perpendicular to the surface
of the pavement. The joints shall be installed and finished to insure complete
separation of the slabs. Expansion joints shall be of the premolded type
conforming to these specifications and with the plans and shall be the full width
of the pavement strip.
All concrete shall be cleaned from
material. Before the pavement is opened to traffic, this
clean and filled with approved joint sealing material.
r 2752-94 5 - 19
m the top of the joint
space shall be swept
I
All devices used for the installation of expansion
joints shall be approved by the Owner's Representative. They shall be easily
removable without disturbing the concrete and held in proper transverse and
vertical alignment. Immediately after forms are removed, any concrete bridging
the joint space at the ends shall be removed for the full width and depth of the
joint.
When specified, expansion joints shall be equipped with
dowels of the dimensions and at the spacing and location indicated on the plans.
The dowels shall be firmly supported in place and accurately aligned parallel to
the subgrade and the centerline of the pavement by means of a dowel assembly
which will remain in the pavement and will _ensure that the dowels are not
displaced during construction.
Other types of load -transfer devices may be used, when
approved by the Owner's Representative.
b) Contraction. Transverse contraction joints, weakened -
plane joints, or both, shall be installed at the locations and spacing as shown
on the plans. These joints will be installed by sawing a groove into the
concrete surface after the concrete has hardened in the same manner as specified
in Paragraph 3-11(c)(3)b), of this Section. Dowel bar assemblies shall be
installed, when required, as shown on the plans.
c) Construction. Transverse construction joints shall be
installed at the end of each day's placing operations and at any other points
within a paving lane when concrete placement is interrupted for more than 30
minutes or it appears that the concrete will obtain its initial set before fresh
concrete arrives. The joint shall be located at a contraction or expansion
joint. If the pouring of the concrete has been stopped, causing a joint to fall
in another location, it shall not be installed; but the fresh concrete shall be
removed back to the previously spaced regular joint. Construction joints shall
be doweled unless shown otherwise.
(d) Final Strike -Off. Consolidation, and Finishing
(1) Sequence. The sequence of operations shall be the strike -off
and consolidation, floating and removal of laitance, straightedging, and final
surface finish. The addition of superficial water to the surface of the concrete
to assist in finishing operations generally will not be permitted. If the
application of water to the surface is permitted, it shall be applied as a fog
spray by means of approved spray equipment.
(2) Finishing at Joints. The concrete adjacent to joints shall
be compacted or firmly placed without voids or segregation against the joint
material; it shall be firmly placed without voids or segregation under and around
all load -transfer devices, joint assembly units, and other features designed to
extend into the pavement. Concrete adjacent to joints shall be mechanically
vibrated as required in Paragraphs 3-10(a) and 3-11(a). After the concrete has
been placed and vibrated adjacent to the joints, the finishing machine shall be
operated in a manner to avoid damage or misalignment of joints. If uninterrupted
operations of the finishing machine, to, over, and beyond the joints, cause
2752-94 5 20
4
segregation of concrete, damage to, or misalignment of the joints, the finishing
machine shall be stopped when the screed is approximately B inches from the
joint. Segregated concrete shall be removed from the front of and off the joint;
y the screed shall be lifted and set directly on top of the joint, and the forward
motion of the finishing machine shall be resumed. Thereafter, the finishing
„ machine may be run over the joint without lifting the screed, provided there is
no segregated concrete immediately between the joint and the screed or on top of
the joint.
(3) Machine Finishing. The concrete shall be spread as soon as
it is placed, and it shall be struck off and screeded by an approved finishing
machine. The, machine shall go over -each area as many times and at such intervals
as necessary to give the proper consolidation and to leave a surface of uniform
texture. Excessive operation over a given area shall be avoided. When side
forms are used, the tops of the forms shall be kept clean by an effective device
attached to the machine, and the travel of the machine on the forms shall be
maintained true without lift, wobbling, or other variation tending to affect the
precision finish. During the first pass of the finishing machine, a uniform ridge
of concrete shall be maintained ahead of the front screed for its entire length.
When in operation, the screed shall be moved forward with a combined longitudinal
and transverse shearing motion, always moving in the direction in which the work
is progressing, and so manipulated that neither end is raised from the side forms
during the striking -off process. If necessary, this shall be repeated until the
surface is of uniform texture, true to grade and cross section, and free from
porous areas.
(4) Hand Finishing. Hand finishing methods will not be
permitted, except under the following conditions: In the event of breakdown of
the mechanical equipment, hand methods may be used to finish the concrete already
deposited on the grade; or in areas of narrow widths or of irregular dimensions
where operation of the mechanical equipment is impractical. Concrete, as soon
as placed, shall be struck off and screeded. An approved portable screed shall
be used. A second screed shall be provided for striking off the bottom layer of
concrete when reinforcement is used.
The screed for the surface shall be at least 2 feet longer
than the maximum.width of the slab to be struck off. It shall be of approved
design, sufficiently rigid to retain its shape, and shall be constructed either
of metal or of other suitable material covered with metal. Consolidation shall
be attained by the use of a suitable vibrator.
(5) Floating. After the concrete has been struck offand
consolidated, it shall be further smoothed, trued, and consolidated by means of
a longitudinal float, using one of the following methods:
a) bland Method. The hand -operated longitudinal float shall
not be less than 12 feet in length and 6 inches in width, properly stiffened to
prevent flexibility and warping. The longitudinal float, operated from foot
bridges resting on the side forms and spanning but not touching the concrete,
shall be worked with a sawing motion, while held in a floating position parallel
r to the pavement centerline and passing gradually from one side of the pavement
to the other. Forward movement along the centerline of the pavement shall be in
2752-94 5 - 21
F
successive advances of not more than one-half the length of the float. Any
excess water or soupy material shall be wasted over the pavement edge or side
forms on each pass.
b) Mechanical Method. The Contractor may use a machine
composed of a cutting and smoothing float(s), suspended from and guided by a
rigid frame. The frame shall be carried by four or more visible wheels riding
on, and constantly in contact with, the side forms or pavement subbase. If
necessary, long -handled floats having blades not less than 5 feet in length and
6 inches in width may be used to smooth and fill in open -textured areas in the
pavement. Long -handled floats shall not be used to float the entire surface of
the pavement in lieu of mechanical methods. When'strike-off and consolidation
are done by hand and the crown of the pavement will not permit the use of the
longitudinal float, the surface shall be floated transversely by means of a
long -handled float. Care shall be taken not to work the crown, out of the
pavement during the operation. After floating, any excess water and laitance
shall be removed from the surface of the pavement by a straightedge 10 feet or
more in length. Successive drags shall be lapped one-half the length of the
blade.
(6) Straight -Edge Testing and Surface Correction. After the
pavement has been struck off and consolidated and while the concrete is still
plastic, it shall be tested for trueness with a 16-foot straightedge. For this
purpose the Contractor shall furnish and use an accurate 16-foot straightedge
swung from handles 3 feet longer than one-half the width of the slab. The
straightedge shall be held in contact with the surface in successive positions
parallel to the centerline and the whole area gone over from one side of the slab
to the other, as necessary. Advancing shall be in successive stages of not more
than one-half the length of the straightedge. Any excess water and laitance
shall be removed from the surface of the pavement. Any depressions shall be
immediately filled with freshly mixed concrete, struck off, consolidated, and
refinished. High areas shall be cut down and refinished. Special attention
shall be given to assure that the surface across joints meets the requirements
for smoothness. Straightedge testing and surface corrections shall continue
until the entire surface is found to be free from observable departures from the
straightedge and until the slab conforms to the required grade and cross section.
The use of long -handled wood floats shall be confined to a minimum; they may be
used only in emergencies and in areas not accessible to finishing equipment.
(e) Surface Texture
The surface of the pavement shall be finished with either a broom
or burlap drag .finish for all newly constructed concrete pavements.
(1) Brush or Broom Finish. If the pavement surface texture is
to be a type of brush or broom finish, it shall be applied when the water sheen
has practically disappeared. The equipment shall operate transversely across the
pavement surface, providing corrugations that are uniform in appearance and
approximately 1/16 of an inch in depth. It is important that the texturing
equipment not tear.or unduly roughen the pavement surface during the operation.
Any imperfections resulting from the texturing operation shall be corrected.
2752-94 1. 5 - 22
F."!
(2) Burlap Drat Finish.
pavement surface, it shall be at least
rough -textured surface, the transverse
approximately 1 foot from the trailing
burlap threads produces the desired wide
pavement surface. The corrugations
approximately 1/16 of an inch in depth.
If a burlap drag is used to texture the
15 ounces per square yard. To obtain a
threads of the burlap should be removed
edge. A heavy buildup of grout on the
sweeping longitudinal striations on the
shall be uniform in appearance and
(f) Surface Test
As soon as the concrete has hardened sufficiently, the pavement
surface shall be tested with a 16-foot straightedge or other specified device.
Areas in a slab showing high spots of more than 1/4-inch but not exceeding
1/2-inch in 16 feet shall be marked and immediately ground down with an approved
grinding machine to an elevation that will fall within the tolerance of 1/4-inch
or less. Where the departure from correct cross section exceeds 1/2-inch, the
pavement shall be removed and replaced at the expense of the Contractor when so
directed by the Owner's Representative.
Any areas or sections so removed shall be removed to the nearest
joints in all directions. Removal of slabs shall be as specified in Paragraph 5.
(g) Curing
Immediately after the finishing operations have; been completed and
marring of the concrete will not occur, the entire surface of the newly placed
concrete shall be cured in accordance with one of the methods below. In all
cases in which curing requires the use of water, the curing shall have prior
right to all water supply or supplies. Failure to provide sufficient cover
material of whatever kind the Contractor may elect to use, or lack of water to
adequately take care of both curing and other requirements,.shall be cause for
immediate suspension of concreting operations. The concrete: shall not be left
rexposed for more than 1/2-hour during the curing period. The following are
!I alternate approved methods for curing concrete pavements.
(1) Impervious Membrane Method. The entire surface of the
`
pavement shall be sprayed uniformly with white pigmented curing compound
immediately after the finishing of the surface and before the set of the concrete
nCuring
has taken place. The curing compound shall not be applied during rainfall.
compound shall be applied by mechanical sprayers under pressure at the
rate of 1 gallon to not more than 75 square feet. The curing compound shall be
applied uniformly until the surface presents a uniform white appearance and
completely conceals the natural color of the concrete. Curing compound shall be
i
maintained for a curing period of 14 days, unless otherwise approved by the
Owner's Representative. The spraying equipment shall be of the fully atomizing
r.,
type equipped with a tank agitator. At the time of use, the: compound shall be
a thoroughly mixed condition with the pigment uniformly dispersed throughout the
vehicle. During application the compound shall be stirred continuously by
effective mechanical means. Hand spraying of odd widths or shapes and concrete
r
surfaces exposed by the removal of forms will be permitted. Curing compound
shall not be applied to the inside faces of joints to be sealed, but approved
means shall be used to insure proper curing of such joint faces for 72 hours.
The curing compound shall be of such character that the film will harden within
30 minutes after application. Should the film become damaged from any cause
2752-94 5 - 23
r""
within the required curing period, the damaged portions shall be repaired
immediately with additional compound. Upon removal of side forms, the sides of
the exposed slabs shall be protected immediately to provide a curing treatment
equal to that provided for the surface.
(2) Polyethylene Films. The top surface and sides of :the
pavement shall be entirely covered with polyethylene sheeting. The units shall
be lapped at least 18 inches. The sheeting shall be placed and weighted to cause
it to remain in contact with the surface covered. The sheeting shall have
dimensions that will extend at least twice the thickness of the pavement beyond
the edges of the pavement. Unless otherwise specified, the sheeting shall be
maintained in place for 72 hours after the concrete has been placed.
(3) Waterproof Paper. The top surface and sides of the pavement
shall be entirely covered with waterproofed paper. The units shall be lapped at
least 18 inches. The paper.shall be placed and weighted to cause it to remain
in contact with the surface covered. The paper shall have dimensions that will
extend at least twice the thickness of the pavement beyond the edges of the slab.
The surface of the pavement shall be thoroughly wetted_prior to placing of the
paper. Unless otherwise specified, the paper shall be maintained in place for
72 hours after the concrete has been placed.
(4) White Burlap-Rolyeth lene Sheets. The surface of the
pavement shall be entirely covered with the sheeting. The sheeting used shall
be such length (or width) that it will extend at least twice the thickness of the
pavement beyond the edges of the slab. The sheeting shall be placed so that the
entire surface and both edges of the slab are completely covered. The sheeting
shall be placed and weighted to remain in contact with the surface covered,.and
the covering shall be maintained fully wetted and in position for 72 hours after
the concrete has been placed.
(5) Curing in Cold Weather. When the average daily temperature
is below 40 degrees F, curing shall consist of covering the newly laid pavement
with not less than 12 inches of loose, dry hay or straw, or equivalent protective
curing authorized by the Owner's Representative, which shall be retained in place
for 10 days.. The hay or straw shall be secured to avoid being blown away.
Admixture for curing or temperature control may be used only when authorized by
the Owner's Representative.
When the concrete is being placed and the air temperaturemay be
expected to drop below 35 degrees F, a sufficient supply of straw, hay, grass,
or other suitable blanketing material such as burlap or polyethylene shall be
provided along the work. Any time the temperature may be expected to reach the
freezing point during the day or night, the material so provided shall be spread
over the pavement to a sufficient depth to prevent freezing of the concrete. The
period of time such protection shall be maintained shall not be less than 10
days. A minimum of 3 days is required when high, early strength concrete is
used. The Contractor shall be responsible for the quality and strength of the
concrete placed during cold weather, and any concrete injured by frost action
shall be removed and replaced at the Contractor's expense.
2752-94 5 - 24
r
(h) Removing Forms
Unless otherwise specified, forms shall not be removed from
freshly placed concrete until it has set for at least 12 hours, except where
auxiliary forms are used temporarily in widened areas. Forms shall be removed
carefully to avoid damage to the pavement. After the forms have been removed,
the sides of the slab shall be cured as outlined in one of the methods indicated
in Paragraph 3-11(g). Major honeycombed areas shall be considered as defective
work and shall be removed and replaced. Any area or section so removed shall be
removed to the nearest joints in all directions.
(i) Sealing Joints
The joints in the pavement shall be sealed in accordance with
Section 7, JOINT SEALING FILLER, of these specifications.
(j) Protection of Pavement
The Contractor shall protect the pavement and its appurtenances
against both public traffic and traffic caused by the Contractor's employees and
agents. This shall include watchmen to direct traffic and the erection and
maintenance of warning signs, lights, pavement bridges, or crossovers, etc. The
location and type of device or facility required to protect the work and provide
adequately for traffic shall be the responsibility of the Contractor. Any damage
to the pavement occurring prior to final acceptance shall be repaired or the
pavement replaced at the Contractor's expense. In order that the concrete be
properly protected against the effects of rain before the concrete is
sufficiently hardened, the Contractor will be required to have available at all
times materials for the protection of the edges and surfacesof the unhardened
concrete. Such protective materials shall consist of rolled polyethylene
sheeting at least 4 mils thick of sufficient length and width to cover the
plastic concrete slab and any edges. The sheeting may be mounted on either the
paver or a separate movable bridge from which it can be unrolled without dragging
over the plastic concrete surface. When rain appears imminent, all paving
operations shall stop and all available personnel shall begin covering the
surface of the unhardened concrete with the protective covering.
(k) Opening,, to Traffic
The Owner's Representative shall decide when the pavement shall
be opened to traffic. The pavement will not be opened to traffic until test
specimens molded and cured in accordance with ASTM C31 have attained a minimum
compressive strength of 3,200 pounds per square inch when tested in accordance
with ASTM C39. If such tests are not conducted, the pavement shall not be opened
to traffic until 28 days after the concrete was placed. Prior to opening to
traffic, the pavement shall be cleaned.
(1) Surface Tolerances
Extreme care must be exercised in all phases of the operation to
L assure the pavement will pass the specified tolerances. The following tolerances
are applicable:
Lateral deviation from established alignment gnment of the pavement
edge shall not exceed plus or minus 0.10 foot in 100 feet of pavement length or
0.02 foot in any one slab.
2752-94 5 - 25
i
b) Vertical deviation from established grade shall not exceed
plus or minus 0.04 foot at any point.
c) Surface smoothness deviations shall not exceed 1/4-inch from
a 16-foot straightedge placed in any direction, including placement along and
spanning any pavement joint or .edge.
4. REPAIRS OF DEFECTIVE PAVEMENT.SLABS
4-1 General
Broken slabs, random cracks, nonworking contraction joints near cracks,
and spalls along joints and cracks shall be replaced or repaired as specified
hereinafter at no cost to the Owner.
4-2 Broken Slabs
-- Pavement slabs containing multiple cracks through more than 1/4 of the
depth of the slab separating the slab into three or more parts and pavement slabs
with one or more cracks through more than 1/4 of the depth of the pavement
extending diagonally across more than 1/3 of the slab either transversely or
longitudinally shall be entirely removed and replaced. Pavement slabs containing
a single diagonal crack intersecting the transverse and longitudinal joints
within 1/3 of the width and length of the slab from the corner shall be repaired
by removing and replacing the smaller portion of the slab. Repairs of broken
slabs shall be made in conformance with Paragraph 5.
4-3 Grooving and Repairing Cracks in Pavement Slabs
Random cracks penetrating more than 1/4 of the depth of the pavement
shall be grooved, the crack filled with epoxy -resin and the groove filled with
epoxy -resin grout. The top of the crack shall be grooved to a minimum depth of
3/4-inch and to a width not less than 3/8-inch nor more than 5/8-inch by means
of an approved grooving machine. The grooving machine shall be of the vertical
rotary -cutting type and shall be capable of following closely the path of the
crack and of widening the top of the crack to the required section without
spalling or otherwise damaging the concrete. Random cracks that are tight and
that penetrate less than 1/4 of the depth of the pavement shall be filled with
epoxy -resin. When necessary, the depth of crack penetration shall be determined
by inspection of cores not less than 4 inches in diameter drilled by the
Contractor at his expense at locations directed. The core holes shall be
refilled with portland-cement concrete bonded to the pavement with epoxy -resin
grout. In addition, when a longitudinal crack is continuous across one or more
slabs and penetrates more than 1/4 the depth of pavement, core holes not less
than 6 inches in diameter shall be drilled through the full depth of slab at both
ends of the crack. In the operation to drill cores at the longitudinal -crack
ends. the core bits shall be so positioned that the core removed will include not
more than 3 inches of the crack. Sandblasting and high-pressure air jets shall
be used to remove any fines near the apparent ends of the crack to permit
accurate determination of ends of the crack. All fines, dust, and other loose
material on the wall of the cored holes shall be removed by scrubbing with a
stiff -bristle brush, followed by washing and dewatering of the core hole. These
core holes shall be refilled with epoxy -resin concrete. - A prime coat of
epoxy -resin binder thinned with 3 parts toluene to 7 parts epoxy binder, by
2752-94 5 - 26
f"
is
volume, shall be applied and brushed into the vertical wall of the core hole.
Placement of the epoxy -resin concrete shall be delayed until the prime coat
becomes stringy or approaches dry to touch. The epoxy -resin concrete shall be
placed in layers not over 6 inches thick. The time interval between placement
of additional layers shall be such that temperature of the epoxy -resin concrete
does not exceed 140 degrees F. at any time during hardening.
--- 4-4 Nonworking (uncracked) Contraction Joints
When a transverse random crack terminates in or crosses a transverse
contraction joint, the uncracked portion of the joint shall be filled with
epoxy -resin mortar or grout and the crack shall be routed and sealed. When a
transverse random crack approximately parallels the planned contraction joint and
is within a distance of 25 percent of the slab length from a contraction joint,
the crack shall be routed and sealed, and the joint shall be filled with
epoxy -resin grout or mortar. When a transverse random crank is more than 25
percent of a slab length from the nearest contraction joint, both the joint and
the crack shall be sealed. Joints to be filled with epoxy -resin mortar or grout
shall be thoroughly cleaned. Cleaning and sealing of cracks and joints shall be
as specified in Section 7, JOINT SEALING FILLER, of these specifications.
4-5 Spalling Along Joints and Cracks
Spalls shall be repaired by making a saw cut atleast1 inch outside
the spelled area and to a minimum depth of 2 inches. When the spalled area abuts
a joint, the saw cut shall be made to a depth of 2 inches or 1/6 the slab
thickness, whichever is greater. The concrete between the saw cut and the joint
or primary crack shall be removed to a minimum depth of 2 inches below the
original concrete surface, and to such additional depth where necessary to expose
a surface of sound, unweathered concrete that is uncontaminated by oils, grease,
deicing salts or solutions, or other substances that would inhibit the
performance of the epoxy -resin bonding material. Removal of the concrete volume
between the saw cut and the joint or primary crack shall be accomplished using
a hydraulic impact hammer, or other methods approved by the Owner's
Representative. The Contractor shall exercise care in removing the required
concrete such that no damage is inflicted on the adjoining concrete slab. Damage
of adjoining concrete shall be repaired by the Contractor at his expense to the
satisfaction of the Owner's Representative.
The concrete void to be patched shall be thoroughlycleanedwith
it compressed air, sandblasting, or other approved methods to remove all loose
material. A prime coat of epoxy -resin binder thinned with 3 parts toluene to 7
� parts epoxy binder, by volume, shall be applied to the dry, cleaned surface of
4 all sides of the cavity, except the joint or primary crack face. The prime coat
shall be applied in a thin coating and scrubbed into the surface with a
stiff -bristle brush. Placement of portland-cement concrete or epoxy -resin
concrete or mortar shall be delayed until the prime coat becomes stringy or
approaches dry to touch. The epoxy concrete shall then be placed in the cavity
in layers not exceeding 2 inches thick. The time interval between placement of
additional layers shall be such that the temperature of the epoxy -resin concrete
does not exceed 140 degrees F. at any time during hardening. Mechanical plate,
screed, float vibrators, or hand tampers shall be used to consolidate the
^. concrete or mortar. Excess mortar or concrete on the adjacent surfaces of the
hardened concrete shall be removed before it hardens. After the finishing
2752-94 5 - 27
operations and while the epoxy -resin concrete or mortar is still tacky, a thin
coating of portland cement shall be uniformly spread on the surface of the
repaired area and lightly brushed into the surface. If the spelled area to be
patched abuts a working joint or a working crack which penetrates the full depth
of a slab, an insert or other bond -breaking medium shall be used to maintain
working joints or cracks during the repair work. Surface embedment of a flexible
polyethylene or other suitable type hose shall be used for forming a groove along
the working crack to be filled with appropriate type of joint -sealing material.
The hose shall be removed carefully before the concrete hardens sufficiently to
form a high bond. The groove shall be thoroughly cleaned and filled with a
sealer as specified in Section 7, JOINT SEALING FILLER, of these specifications.
5. REMOVAL AND REPLACEMENT OF DEFECTIVE PAVEMENT AREAS
Defectivepavement areas shall be removed and replaced as specified herein
with pavements of the thickness and quality required by these specifications.
The defective pavement shall be carefully removed in such manner that the
adjacent pavement will not be damaged and the existing keys or dowels at the
joints will be left intact. When a portion of an unfractured slab is to be
replaced, a saw cut 2 inches deep shall be made transversely across the slab in
the required location, and the concrete shall be removed to provide an
essentially vertical face in the remaining portion of the slab. Prior to
placement of the fresh concrete, the face of the slab shall be cleaned of debris
and loose concrete, and then thoroughly coated with epoxy -resin grout. The
epoxy -resin coating shall be approximately 1/16-inch, and shall be applied by
scrubbing a thin coat of grout into the surface with a stiff -bristle brush
followed by a second application. Strips of polyethylene sheeting shall be
placed on the vertical faces of adjacent slabs at the juncture with the slab to
be patched as -a bond -breaking medium. Placement of the fresh portland-cement
concrete shall be accomplished while the epoxy -resin is still tacky and in such
manner that the grout coating will not be removed. Longitudinal and transverse
joints of the replaced slab or portion thereof shall be constructed as indicated.
The joints shall be sealed as specified in Section 7, JOINT SEALING FILLER, of
these specifications. The replaced pavements will be paid for at the contract
price but no payment will be made for the defective pavements removed nor for the
cost of removing the defective pavements.
6. TOLERANCE IN PAVEMENT THICKNESS
The thickness of the pavement shall be determined by average caliper
measurement of cores tested in accordance with ASTM C174. The Owner's
Representative may elect to measure thickness of concrete pavement prior to
placement based on measurements from a string line stretched across the forms or
in the plastic concrete behind the concrete placing operation.
Areas found deficient in thickness shall be removed and replaced with
concrete of the thickness shown on the plans at the Contractor's expense. If
cores are used to determine the concrete thickness, the core holes shall be
filled with non -shrink grout by the Contractor at the Contractor's expense.
2752-94 5 - 28
1 7. METHOD OF MEASUREMENT
The quantity of portland cement concrete used in the construction of
concrete pavement to be paid for shall be the number of square yards of concrete
pavement of the thickness specified, in place, completed and accepted, less
deductions as hereinafter required for deficient strength. No separate
measurement shall be made for thickened edge areas of portland cement concrete
pavement.
r' The quantity of portland cement concrete used 'in the construction of
concrete curb and gutter, concrete gutters and valley gutters, concrete spandrels
and miscellaneous concrete slabs (other than concrete pavements), concrete
sidewalks and wheelchair'ramps, and other miscellaneous concrete work to be paid
l for shall be included in Section 6, CONCRETE SLABS, CUES AND GUTTER AND
l MISCELLANEOUS CONCRETE WORK, of these specifications.
8. BASIS OF PAYMENT
The quantities of portland cement concrete used in this project shall be
paid for at the contract unit price bid for the various items of concrete work,
which price and payment shall be full compensation for furnishing and placing all
materials, including structural excavation and backf ill, forms and forming, steel
dowels and other reinforcement, joint preparation, joint seal materials and
installation, and surface texturing.
Portland cement concrete used in the construction of concrete curb and
gutter, concrete gutters and concrete slabs shall be considered incidental to the
various items of concrete work and shall be paid for at the contract unit price
for the various items of concrete work as included in Section 6,.CONCRETE SLABS
CURB AND GUTTER AND MISCELLANEOUS CONCRETE WORK, of these specifications.
In this section, payment will be made under the following item:
8-inch Portland Cement Concrete Pavement, complete in place, per
square yard; and
Buried Slabs, complete in place, per square yard.
No additional payment over the contract unit price bid shall be made for any
concrete which has an average thickness in excess of that shown on the plans.
No additional payment for thickened edge pavement shall be made over the contract
until price bid for concrete pavement.
2752-94
4. .
END OF SECTION
5-29
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SECTION 6
CONCRETE SLABS. CURB AND GUTTER
AND MISCELLANEOUS CONCRETE WORK
1. - DESCRIPTION
This item shall consist of concrete curb and gutter, concrete gutter,
concrete slabs,' concrete sidewalks and wheelchair ramps, and other miscellaneous
concrete work constructed in accordance with these specifications at the
specified locations in accordance with the dimensions, lines and grades as shown
on the plans or required by the Owner's Representative.
2. CONCRETE
Concrete materials and reinforcing steel used in concrete slabs, curb and
gutter and miscellaneous concrete work shall conform to the requirements of
Section 5, PORTLAND CEMENT CONCRETE, of these specifications.
3. CONSTRUCTION METHODS
3-1 General
The Contractor shall furnish all labor, materials and services
r' necessary for, and incidental to, the completion of all work as shown on the
drawings and specified herein. All machinery and equipment owned or controlled
by the Contractor, which he proposes to use on the work, shall be of sufficient
size to meet the requirements of the work, and shall be such as to produce
satisfactory work; all work shall be subject to the inspection and approval of
the Owner's Representative. The Contractor shall employ, at all times, a
sufficient force of workmen of such experience and ability that the work can be
prosecuted in a satisfactory and workmanlike manner.
3-2 Preparing Base and Subgrade
Excavation or filling for curb and gutters, slabs and other
miscellaneous concrete work shall conform to the lines and grades as shown on the
plans or as established in the field. Where concrete work is on fill, the fill
material shall be placed in layers and given compaction, by appropriate methods
in accordance with Section 2, EXCAVATION, SUBGRADE PREPARATION, GRADING,
EMBANKMENT AND TOPSOILING, of these specifications. Placing of curb and gutter
or other concrete work on narrow embankment will not be permitted. Where curb
and gutter or other concrete work is in "cut," the subgrade shall be excavated
to the required depth and fine graded, sprinkled and tamped by hand tampers or
other appropriate method. In any case the base and subgrade shall be brought
uniformly to the grade required by the grades established in the field and the
detail of the sections shown on the plans, and thoroughly compacted.
At any time, the Owner's Representative may order proof rolling to test
r the uniformity of compaction of the subgrade or base course. Proof rolling shall
be accomplished using a 25-ton pneumatic roller, or other rolling devices as
7 approved by the Owner's Representative. Proof rolling shall be accomplished by
the Contractor at his expense. All irregularities, depressions, or weak or soft
E 2752-94 6 1
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areas which develop during proof rolling shall be corrected immediately by the
Contractor.
3-3 Forms
Forms for curb and gutter shall be approved type metal forms. The form
sections shall be straight, free of warp and of a depth equal to the depth of the
concrete section formed. Forms shall be constructed accurately to lines and
grades as shown on the plans or as established in the field, shall be adequately
braced so that they .will not move during placing of the concrete,, and shall
remain in place at least twelve (12) hours after placing of concrete. Forms
shall be oiled with a light oil before each use and forms which are to be reused
shall be cleaned immediately after use and maintained in good condition.. Forms
for concrete slabs and other concrete work shall also conform to provisions of
this paragraph. Forms for curb and gutter on curves with a radius of 150 feet
or less shall be flexible steel forms.
3-4 Machine Laid Curb and Gutter
The concrete curb and gutter sections may be formed with a curb and
gutter laydown machine, provided the machine is capable of laying the curb and
gutter to the proper guide, alignment and cross-section, and is equipped with
adequate vibrators to produce a dense concrete free of honeycombs.
Laydown machines that cannot meet the above requirements will not be
acceptable for use.
3-5 Placing
Concrete shall be deposited in place in such a manner as to require the
minimum of rehandling and shall be placed in a manner which will produce a
uniformly dense'section, free of honeycomb or other voids, conforming to the
grade, thickness and shapes shown on the plans. Before placing concrete, the
subgrade, base or subbase shall be sprinkled so that it is in a thoroughly
moistened condition (but not muddy). The concrete base course shall be formed
to the true section as shown on the plans for the various sections. The section
shall be shaped by the use of a metal screed shaped to the true cross-section of
the finished section, or by other method approved by the Owner's Representative.
On curb and gutter sections, the front face of the curb shall be formed by a
method approved by the Owner's Representative.
During placing operations, should the cross-section of the newly -placed
curb and gutter deviate from the cross-section shown on the plans, or other
.cross-section as approved by the Owner's Representative, by more than 1/8 inch,
the Contractor shall make immediate corrections to the cross-section as required
to produce the specified cross-section. The Contractor will be allowed a maximum
of 100_1inear feet of curb and gutter to make any adjustments required to produce
the specifiedcross-section, within an allowable deviation of 1/8 inch. Should
the Contractor ;be unable to achieve the required cross-section within the allowed
100 linear feet of curb and gutter, all curb and gutter operations shall cease
until the Contractor demonstrates, on a test site away from this project, the
Ability to produce the required curb and gutter cross-section.
2752-94 6 2
Any curb and gutter that deviates from the specified cross-section by
more than 1/4 inch shall be removed and replaced by the Contractor at his
expense.
Concrete shall be thoroughly spaded or vibrated in order to eliminate
honeycomb. Honeycombed places in the back of curb or face of gutter will not be
permitted. Small honeycombed places shall be patched immediately as directed by
the Owner's Representative. Concrete shall not be placed when the temperature
is less than 40° F. and under no circumstances shall it be placed on frozen
ground.
3-6 Joints
Curbs and gutters shall be constructed with an expansion joint at the
tangent point of each return at intersections and at the end of each day's
concrete pour. A construction or contraction joint shall be located at intervals
corresponding to the joint interval of the adjacent concrete pavement or as
directed by the Owner's Representative. Joints in the new concrete pavement
shall extend through the new curb and gutter unless otherwise directed by the
Owner's representative. All joints shall be perpendicular to the surface of the
concrete and to the axis of the section. The contraction joints shall.be made
by cutting into the curb and gutter sections with a trowel a depth of 2% inches;
these joints shall be finished as specified under finishing.
r' Expansion joint material shall be an approved pre -formed bituminous
is impregnated non -extruding type jointing material, meeting the requirements of
AASHTO M 213. The joint material shall be 1/2 inch thick, and shaped to the
r- section of the curb and gutter or other work.
3-7 Finishing
. Curb and gutter, gutter, concrete slabs and other miscellaneous
concrete work shall be accurately shaped to the cross section shown on the plans
or approved by the Owner's Representative and finished to a surface of uniform
texture by floating with a wood float and trowelling. The final finishing shall
be done with a brush, the last stroke being one from the back of the curb to the
lip of the gutter and transversely on other work. Both sides of all joints, the
lip of the gutter and back edge of the curb shall be finished with an .approved
edging tool before the final brushing. Curbs at top and bottom of curb section
shall be accurately shaped and finished and the finished curb and gutter shall
present a uniform appearance without "waves" in the face of the curb or "pockets"
in the gutters or slabs. Particular care shall be exercised at all valley
gutters, both in setting forms and finishing, to insure that the shape of the
gutter shall conform to the details of the plans and that no water pockets will
be formed either in the gutter or the pavement. At construction joints the
mortar shall be cut the full width of the joint in the base course. The
construction and contraction joints shall be neatly formed and finished with an
approved edging or grouting tool of. such design to groove the joint approximately
3/4" in depth.
3-8 Backfilling
After the concrete work has set sufficiently, the spaces adjacent to
the structure shall be refilled to the required elevation with approved material
r 2752-94 6 - 3
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in accordance with Section 2, EXCAVATION, SUBGRADE PREPARATION, GRADING,
EMBANKMENT AND TOPSOILING, of these specifications.
3-9 Cleaning and Restoration of Site
After the backfill is completed, the Contractor shall dispose of all
surplus material, dirt, and rubbish from the site. Surplus dirt may be deposited
in embankments, shoulders or as ordered by the Owner's Representative. The
Contractor shall restore all disturbed areas to their original condition, unless
otherwise shown on the drawings.
After all work is completed, the Contractor shall remove all tools and
equipment, leaving the entire site free, clear and in good condition.
Performance of the .work described in this section. is not. payable
directly but shall be considered as a subsidiary obligation of the Contractor,
covered under the contract unit price for the structure.
4. METHOD OF MEASUREMENT
Actual installed quantities of .curb and gutter, concrete slabs, and other
miscellaneous concrete work will be measured. Curb and gutter and gutter will
be measured and paid for on a linear foot basis. Concrete slabs, concrete
sidewalks and wheelchair ramps, and other miscellaneous concrete work will be
measured and paid for on a square yard basis. The quantity of concrete slabs
will include concrete spandrels and concrete gutters wider than 30-inches...
Portland cement concrete pavement and buried slabs will be included in
Section 5, PORTLAND CEMENT CONCRETE PAVEMENT, of these specifications.
5. BASIS OF PAYMENT
Payment for this work will be made at the contract unit price fortheunits
as shown below for the various items, which unit price shall include all costs
of labor, superintendence, materials, and equipment necessary for theproper
performance of the work, including all excavation, grading and reinforcing in
accordance with the plans and specifications.
Payment shall be made for the following items:
30•inch Concrete Curb and Gutter and 30-inch Concrete
Gutter, complete in place, per linear foot;
-6-inch Concrete Slabs, complete in place, per square yard;
and
4-inch Concrete Sidewalks and Wheelchair Ramps, complete in
place, per square yard.
END OF SECTION
2752-94 6 - 4
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1. DESCRIPTION
This item shall consist of providing and installing a resilient and adhesive
joint sealing filler capable of effectively sealing joints in pavements.
I 2. MATERIALS
2-1 Joint Sealers
Each lot or batch of sealing compound shall be delivered to the j obsite
in the manufacturer's original sealed container. Each container shall be marked
with the manufacturer's name, batch or lot number, and the safe heating
� temperature and shall be accompanied by the manufacturer's certification stating
l.; that the compound meets the requirements of this specification.
Joint sealing materials shall be machine -applied. Hand -mixed joint
sealing materials will not be allowed. Joint sealing materials shall meet the
requirements of one or more of the following:
(a) ASTM D3405 JOINT SEALANTS, HOT -POURED, FOR CONCRETE AND ASPHALT
PAVEMENTS, to be used in joints between Portland cement concrete and bituminous
concrete.
(b) ASTM D3406 - JOINT SEALANTS, HOT -POURED, ELASTOMERIC-TYPE, FOR
PORTLAND CEMENT CONCRETE PAVEMENTS, to be used for all other joints in portland
cement concrete pavement.
2-2 Backer Rod and Bond Breaker
. Backer rod shall be an extruded, closed cell polyethylene or urethane
material designed for filling joints and shall be compatible with the joint
sealing material. The diameter of the backer rod shall be approximately 25
percent greater than the width of the joint. A non-metallic bond breaker will
be required if the backer rod material adheres to the joint sealing material.
3. CONSTRUCTION METHODS
"' 3-1 Time of Application
Joints shall be sealed as soon after completion of the curing period
as feasible and before the pavement is opened to traffic, including construction
,a equipment traffic. The pavement temperature shall be above 50' F., or as
recommended by joint sealing material manufacturer, at the time of installation
of the joint sealing material.
3-2 Preparation of Joints
7 Immediately before sealing, the joints shall be thoroughly cleaned of
all laitance, curing compound, and other foreign material. Cleaning shall be
.•• accomplished by sandblasting. The joints shall be sandblasted immediately prior
to the sealing operation unless otherwise directed by the Owner's Representative.
2752-94 7 - 1
The sandblasted joints shall be cleaned out by the use of an oil free high
pressure air jet. The final blowing operation shall precede the sealing
operation by no more than 50 feet. After the joints have been blown by air, the
compressible filler shall be installed in the joint followed by the installation
of the bond breaker. The bond breaker shall be as recommended by the
manufacturer of the sealing material. The joint faces shall be surface dry when
the seal is applied.
3-3 Installation of Sealants
Joints shall be inspected for proper width, depth, alignment, and
preparation, and shall be approved by the Owner's Representative before sealing
is allowed. Sealants shall be installed in accordance with the following
requirements.
The joint sealant shall be applied uniformly solid from bottom to top
and shall be filled without formation of entrapped air or voids. A backing
material shall be placed as shown on the plans and shall be nonadhesive to the
concrete or the sealant material. The heating kettle shall be an indirect heating
type, constructed as a double boiler. A positive temperature control and
mechanical agitation shall be provided. The sealant shall not be heated to more
than 20°F. below the safe heating temperature. The safe heating temperature can
be obtained from the manufacturer's shipping container. A direct connecting
pressure type extruding device with nozzles shaped for insertion into the joint
shall be provided. Any sealant spilled on the surface of the pavement shall be
removed immediately.
After the sealant has been allowed sufficient time to cure, the joint
shall be checked for depressions. If depressions greater than 1/8-inch occur,
additional sealant shall be applied to completely fill the joint.
4. METHOD OF MEASUREMENT AND BASIS OF PAYMENT
The performance of this work shall not be paid for directly but shall be
considered as a subsidiary obligation of the Contractor covered under other
contract items. The cost of this work shall be included in the contract unit
price for portland cement concrete pavement.
END OF SECTION
2752-94 7 2
R:
SECTION 8
MISCELLANEOUS ITEMS OF CONSTRUCTION
.1. DESCRIPTION
This item shall consist of the installation of traffic lane marking composed
of reflectorized pavement markers. The Contractor shall furnish all materials,
equipment, tools, labor, superintendence and incidentals necessary to complete
the work in accordance with the plans and as specified herein.
2. PAVEMENT MARKERS (CHANNEL MARKERS)
Pavement markers provided and installed under this item shall conform to the
requirements of Item 672, RAISED PAVEMENT MARKERS, of the Texas Department of
Transportation (TxDOT) 1993 Standard Specifications for Construction of Highways,
Streets and Bridges. Pavement markers shall be minimum. 6-inch diameter,
reflective.
Oft Pavement markers shall be Type II-C-R, containing two (2) reflective faces,
one of which reflects white light and one of which reflects red light. The body
of the markers, other than the reflective media, shall be white in color and
ceramic in construction. Markers shall be minimum 6-inch diameter, with a
minimum 1%-inch height, and shall be spaced at 24-inch centers, or as directed
by the Owner's Representative.
The markers shall be attached to the concrete pavement using an epoxy
adhesive in accordance with TxDOT Item 575, EPDXY, of the Texas Department of
Transportation (TxDOT) 1993 Standard Specifications for Construction of Highways,
Streets and Bridges.
3. METHOD OF MEASUREMENT
The quantity of pavement markers to be paid for this item shall be the
number of markers installed, completed and accepted.
4. BASIS OF PAYMENT
Payment will be made at the contract unit price per each for pavement
markers. The contract unit price paid shall be full compensation for all
materials; and for all labor, equipment, tools and incidentals necessary to
complete this item.
Payment will be made under the following item:
2752-94
Pavement Markers (Channel Markers), complete in place, per each.
END OF SECTION
8 - 1
7
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1. DESCRIPTION
This item shall govern the measures necessary to control soil erosion,
sedimentation and water pollution which may degrade receiving waters including
rivers, streams, lakes, playas, reservoirs, tidal waters, groundwater and
wetlands. The control measures contained herein shall be installed and
maintained throughout the construction contract period, including any turf
establishment period, and will be coordinated with the permanent or existing
temporary pollution control features specified elsewhere in the plans and
specifications to provide effective and continuous water pollution control.
These control measures shall not be used as a substitute for the permanent
pollution control measures unless otherwise directed by the Owner in writing.
The controls may include silt fences, dikes, dams, berms, sediment basins, mats,
soil retention blankets, temporary seeding, mulch, channel liners, slope drains
or other structural or non-structural water pollution controls.
2. MATERIALS
2-1 General
The items, estimated quantities and locations of the control measures
will be shown on the plans; however, the Owner's Representative may increase or
decrease the quantity of these items. The control measure materials will be as
herein specified or as shown on the plans.. The Owner may allow other materials
and work as the need arises and as approved in writing. All control measure
materials will be approved by the Owner prior to use on this project.
2-2 Silt Fence
Silt fence materials shall consist of the following:
(a) Fabric. The filter fabric shall be of nonwoven polypropylene,
polyethylene or polyamide thermoplastic fibers with non -ravelling edges. The
fabric shall be nonbiodegradable, inert to most soil chemicals, ultraviolet
resistant, unaffected by moisture or other weather conditions, and permeable to
water while retaining sediment. The fabric shall be supplied in rolls with
minimum width of 36 inches.
The filter fabric will have the
characteristics:
2752-94
Minimum Weight:
Maximum Water Flow Rate:
Equivalent Opening Size
(US standard sieve no.):
Minimum Burst Strength (ASTM D 3786):
Minimum Ultraviolet Resistance;
Strength Retention (ASTM D 1682):
9 - 1
following physical
4.5 oz./s.y.
40 gal./s.f./minute
40 to 100
300 psi
70 percent
(b) Posts. Posts will be painted or galvanized steel Tee or Y-posts
with anchor plates, not less than 5 feet in length with a minimum weight of 1.3
pounds per foot and a minimum Brinell hardness of 143. Hangars shall be adequate
to secure fence and fabric to posts. Posts and anchor plates will conform to
ASTM A 702.
C. Wire Fence. Wire fence will be welded wire fabric 2 x 4 - W1.0
x W1.0 and will conform to requirements of ASTM A 82 or A 496.
2-3 Sediment Containment Dikes
Sediment containment dikes shall consist of the following:
(a) Hay Bales. "Hay Bales" will be free of Johnson grass or other
nocuous weeds. The bales will consist of either hay or straw in good condition
and be securely tied by wire. Stakes for anchoring bales will be #4 reinforcing
bars, 1/2 inch steel pickets or 2 inch x 2 inch wooden stakes. Completed dikes
will be at least 18 inches in height and will have sufficient weight and
stability to prevent displacement by runoff. Hay bale dikes will not be allowed
on paved areas, but may be used in unpaved drainageways.
b. Sand Bags. Fabric used to contain the sand may be permeable to
water, but will be able to completely contain the sand within the bags. The
fabric and seams will be of sufficient strength to prevent puncture or rupture
when subjected to conditions which may be encountered during placement or when
in place. Completed dikes will have sufficient weight and stability to prevent
displacement by runoff. Sand bag dikes may be used in paved areas and/or unpaved
areas.
Dikes used across concrete curb and gutter sections shall be
constructed to a minimum height of 6-inches and a minimum length of 2-feet
(measured perpindicular to the curb), and shall be located with one end of the
dike tight against the face of the curb to inhibit the flow of water. Dikes used
in concrete drainage aprons or channels shall be constructed to a minimum height
of 6-inch, and shall extend the full width of the apron or channel. Dikes used
in unpaved drainageways shall be constructed to a minimum height of 18-inches.
3. CONSTRUCTION METHODS
3-1 General
The Owner's Representative has the authority to limit the disturbed
surface area exposed by construction operations. The Contractor shall provide
control measures to prevent or minimize impact to receiving waters as required
by: the plans and/or as directed by the Owner's Representative in writing.
The Contractor shall effectively prevent and control erosion and
sedimentation on the site at the earliest practicable time. Control measures,
where applicable, will be implemented prior to the commencement of each
construction operation or immediately after the area has been disturbed. Control
measures will remain in place throughout the construction period and any turf
establishment period.
2752-94 9 - 2
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Should the control measures fail to function effectively, the
Contractor shall act immediately to bring the erosion and sedimentation under
control by maintaining existing controls or by providing additional controls as
directed by the Owner's Representative. When in the opinion of the Owner's
Representative the site is adequately stabilized, the control measures will be
removed and properly disposed of by the Contractor.
All erosion, sediment and water pollution controls will be maintained
in good working order. The Contractor shall provide a non-freezing rain gauge
to be located at the project site. Within 24 hours of a rainfall event of 0.5
inches or more as measured by the project rain gauge, the Contractor and Owner's
Representative will inspect the entire project to determine the condition of the
control measures. Sediment will be removed and devices repaired as soon as
practicable but no later than 7 days after the surrounding exposed ground has
dried sufficiently to prevent further damage from equipment needed for the
repair.
In the event of continuous rainfall over a 24-hour period, or other
circumstances that preclude equipment operation in the area, the Contractor will
hand carry and install additional backup devices as determined by the Owner's
Representative. The Contractor will remove silt accumulations and deposit the
spoils in an area approved by the Owner's Representative as soon as practical.
Any corrective action needed for the control measures will be accomplished,. in the
sequence directed by the Owner's Representative, however areas adjacent to
waterbodies shall generally have priority followed by devices protecting storm
sewer inlets.
The Contractor shall also conform to the following practices and
controls:
(a) Disposal areas, stockpiles, and haul roads used for this project,
including areas not within the project limits, shall be constructed and
maintained in a manner that will minimize and control the amount of sediment that
may enter receiving waters. Disposal areas shall not be located in any wetland,
f waterbody or streambed. Construction roads may not be located in or cross any
waterbody or streambed without prior approval of the Owner's Representative and
shall be done in compliance with applicable rules and regulations.
(b) Construction operations in rivers, streams, lakes, tidal water
wetlands and other waterbodies shall be restricted to those areas where it is
necessary to perform the work shown on the plans. Wherever streams are crossed,
temporary bridges, timber mats or other structures shall be used.
(c) Protected storage for paints, chemicals, solvents, fertilizers and
other potentially toxic materials will be provided by the Contractor and the
location approved by the Owner's Representative.
(d) Construction staging areas and vehicle maintenance areas shall be
constructed by the Contractor in a manner to minimize the runoff of pollutants
and their location will be approved by the Owner's Representative. The
Contractor shall prevent pollution of receiving waters with petroleum products
or other hazardous or regulated substances. When work areas of material sources
2752-94 9 - 3
F
are located adjacent to a waterbody, control measures such as dikes, gabions, or
rock berms, shall be used to keep sediment and other contaminants from entering
the adjacent waterbody. Care shall be taken during the construction and removal
of such barriers to minimize down -gradient sedimentation.
(e) All waterways shall be cleared as soon as practicable of temporary
embankment, temporary bridges, matting, falsework, piling, debris or other
obstructions placed during construction operations that are not a part of the
finished work.
(f) Disturbance of vegetation shall be minimized and limited to only
what is shown on the construction plans or as directed by the Owner's
Representative in writing.
(g) Construction entrances shall be stabilized by the use of rock,
timber matting or other acceptable techniques when necessary to minimize the off -
site vehicle tracking of sediment. The Contractor shall clean paved surfaces as
necessary to remove sediment which has accumulated on the roadway.
3-2 Silt Fence
The filter fabric will be securely attached to the posts and the wire
fence with the bottom 12 inches of filter fabric buried in a trench a minimum of
6 inches keep to prevent sediment from passing under the fence. When the fence
is constructed on impervious material, a 12 inch flap of fabric will be extended
upstream from the bottom of the silt fence and weighted to limit particulate
loss.
Vertical joints will be overlapped a minimum of 12 inches with the ends
sewn or otherwise securely tied. No horizontal joints will be allowed in the
filter fabric.
The silt fence will be a minimum of 12 inches high. Posts will be
embedded in the ground a minimum of 12 inches and spaced a maximum of 8 feet
apart. Posts will be placed on a slight angle toward the anticipated runoff
source.
Torn or punctured fabric will be repaired by the placement of a patch
consisting of an additional layer of fabric over the damaged area. The patch
will overlap the damaged area a minimum of 12 inches in all directions and will
be securely attached to the repaired fabric.
3-3 Sediment Containment Dikes
The Contractor may select either bales or sand bag materials for the
dikes, unless otherwise indicated. Bales or sand bags will be placed with ends
tightly abutting. If placed in unpaved areas, the dike will be embedded in the
soil a minimum of 4 inches and a maximum of 6 inches. Bales will be securely
anchored in place by a minimum of 2 stakes per bale. Stakes will be angled
toward the previously placed bale to force the bales together. Stakes will be
embedded in the soil a minimum of 18 inches. Bales will not be used when
underlying material such as concrete or asphalt prevents anchorage by stakes.
2752-94 9 - 4
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iIf placed on paved surfaces, the dike will consist of sand bags placed
with the ends tightly together. The sand bags will be placed side by side to a
width as required to minimize sand bag movement or displacement during rainfall
occurrences.
4. METHOD OF MEASUREMENT
Work performed as specified in this section will be measured by the lump
5. BASIS OF PAYMENT
Work will be paid at the lump sum bid and will be full compensation for all
work including the furnishing of all materials, equipment, tools, labor and
1, incidentals necessary to complete the work, including maintaining, servicing or
replacing the measures as required to comply with the requirements of this
specification during the construction period. If the Contractor is required to
install temporary erosion, sediment and water pollution control measures due to
his negligence, carelessness, lack of maintenance, or failure to install
permanent controls as a part of the work as scheduled, and are ordered in writing
by the Owner's Representative, such work shall be performed at the Contractor's
expense.
In case of failure of the part of the Contractor to prevent and control soil
erosion, sedimentation and water pollution which may degrade receiving water, the
Owner reserves the right to employ outside assistance or to use Owner's forces
to provide the necessary corrective measures. All costs including engineering
costs will be deducted from any moneys due or to become due to the Contractor.
Payment will be made under the following item:
2752-94
r
Temporary Erosion, Sedimentation and Water Pollution
Prevention and Control, complete, per lump sum.
END OF SECTION
9 - 5
SECTION 10
SPRINKLER SYSTEM
1. GENERAL
1.1 Description
This project includes the construction of concrete sidewalks and
wheelchair ramps, which will require the removal and replacement of portions of
certain existing sprinkler systems. This specification item includes removing,
salvaging and reinstalling existing sprinkler head units, and furnishing and
installing new sprinkler head units and underground irrigation system piping, in
accordance with these specifications and as approved by the Owner's
Representative.
The Contractor shall inspect the construction site and determine the
exact location, number and types of sprinklers to be removed, salvaged and
reinstalled.
The Contractor shall be responsible for providing a sprinkler layout
that will adequately irrigate the areas currently irrigated by the existing
sprinkler systems. The Contractor's proposed sprinkler layout is subject to
approval by the Owner's Representative prior to construction.
1.2 Materials
The equipment to be furnished and installed under this specification
consists of the necessary piping, sprinklers, fittings and related appurtenances
for the removal and reinstallation of existing underground sprinkler systems, and
the installation of approved improvements to existing underground sprinkler
systems, as described herein or as directed by the Owner's Representative.
1.3 Submittals
The Contractor shall submit four (4) copies of complete manufacturer's
technical data and installation instructions for all new items of equipment to
be furnished. NOTE: The Contractor shall provide written material ¢uarantees
with all equipment submittals.
2. PRODUCTS
2.1 General
a. Acceptable
Manufacturers
The Contractor shall remove, salvage and reinstall all
existing
4V
sprinkler
head units
included in this project. Should the approved
sprinkler
system improvements
require new sprinkler heads, the new sprinkler head units
shall be
existing
identical in manufacturer, size, style and type to the
sprinkler head units in each respective sprinkler system.
remaining
All new
equipment
is subject
to compliance with the requirements of these specifications.
2752-94
10 - 1
r
r
Manufacturers offering products which may be incorporated in the work
include, but are not limited to, the following:
Rain Bird Weathermatic
Toro Hunter
b. Guarantees
The Contractor shall provide a guarantee for all labor and material
for a period of one year, from the date of acceptance. The Contractor shall
provide a manufacturers guarantee for all new sprinkler system components, i.e.
sprinkler head units for a period of five years, from the date of acceptance.
c. Substitutions _
Substitution of products identical to the existing sprinkler system
components shall be approved prior to installation. Substitution requests must
be accompanied by all of the following within thirty (30) days prior to
installation: —
1. Actual sample of each type of equipment proposed as a
substitute.
2. Original manufacturers catalog sheet indicating the full
specification for that particular item.
2.2 Piping and Fittings
The pipe used to replace portions of the existing sprinkler systems
removed under this project shall be replaced with piping meeting the following r
requirements, and of the same diameter as the piping removed.
a. Pipe. Shall be Class 200 PVC meeting the requirements of ASTM
D2241.
b. Fittings for pipe 3 inches and larger. Shall be manufactured from
the same material as the pipe with a minimum pressure rating of not
less than that specified for the pipe. Fittings shall be bell -and -
spigot type with elastomeric rings conforming to ASTM D3139.
c. Fittings for pipe under 3 inches. Shall be manufactured from the
same materials as the pipe with a minimum pressure rating of not
less than that specified for the pipe. Fittings shall be socket
fittings conforming to ASTM C1466 and solvent welded with cement
conforming to ASTM D2564.
2.3 Sprinkler Heads
a. ,Spray-T,ype Sprinkler Heads, Pop-up
Spray -type sprinklers shall be pop-up type for full circle or part
circle coverage, as required by the approved layout. The pop-up height shall be
a minimum 2-inches. Metallic parts shall be made of stainless steel or brass.
The sprinkler housing shall be of molded, seamless plastic, or brass
construction. The water flow and radius of spray shall be fully adjustable. The
sprinkler shall be mounted up to 1/2 inch below finished grade.
2752-94 10 - 2
i
i
r
b. Impact -Type Sprinkler Heads, Pop-up
Impact -type sprinklers shall be pop-up type for full circle or part
circle coverage, as required by the approved layout. The pop-up height shall be
a minimum 2-inches. Metallic parts shall be made of stainless steel or brass.
The sprinkler case shall be of high -strength plastic. The impact head shall be
of molded plastic or brass construction. The radius of spray shall be fully
adjustable. The sprinkler shall be mounted up to 1/2 inch below finished grade.
3. CONSTRUCTION METHODS
3.1 General
a. The Contractor shall provide a layout of each proposed sprinkler
system improvement at least fourteen (14) days prior to starting
construction. The layouts shall be approved in writing by the
Owner's Representative prior to removal of any existing sprinkler
head units.
a. Before installation begins, the Contractor shall place a flag stake
where each and every new or salvaged sprinkler is to be located in
accordance with the approved layout.
b. The Contractor shall work in harmony with the Owner with the intent
of the sprinkler design to irrigate the lawn areas currently
irrigated by the existing sprinkler system. Slight adjustments and
relocations to achieve the intent shall not be considered
justification for Change Orders.
3.2 Excavation and Backfillina
2752-94
a. Trenching shall be to obtain a minimum full depth of cover of 24-
inches.
b. All excavations in this contract shall be unclassified and includes
earth, loose rock or caliche in wet or dry state.
c. All turf and other landscaping materials displaced by the
construction of the improvements shall be carefully removed and
salvaged, and replanted adjacent to the improvements in order to
restore the disturbed landscape areas.
d. All trenches shall be backfilled with the material removed except
where special backfill specifications of certain pipe may be
specified, or where unsatisfactory materials are encountered.
e. Centerload plastic pipe with a small amount of.backfill to prevent
arching and whipping under pressure.
f. All trenches and adjoining areas shall be hand raked to leave the
grade in as good or better condition than before construction.
10 - 3
g. All trench backf ill shall be flooded to prevent. settling and low
areas.
h. All settling and low areas that occur within the first six (6)
months will be the responsibility of the Contractor to fill and
level.
i. All landscape areas disturbed during the construction of the
improvements shall be restored to the condition of the area prior to
the start of construction. In addition to properly backfilling the --
trenches, restoration of the disturbed areas will include re-
establishing turf and other landscaping removed or damaged during
construction. Turf and other landscaping materials salvaged during
construction may be replanted to restore the disturbed areas. Prior
to acceptance of the project, the disturbed areas shall be restored
to the satisfaction of the Owner's Representative.
3.3 Boring
a. All existing pavement and sidewalks shall -be bored. Cutting and `
removal of any existing pavement or sidewalk will NOT be permitted
unless indicated on the plans.
b. The Contractor shall be responsible for all boring. --
c. The boring size shall accommodate pipe sleeves for the sizes of pipe
shown or required.
3.4 Testing and Inspection
a. Do not allow any of the work in this section to be covered or —
enclosed until it has been inspected, tested and approved by the
Owner's representative.
b. Prior to backfilling, the Contractor shall operate the existing
sprinkler system for a period of at least 30 minutes in the presence
of the Owner's Representative. This test shall be done with all
couplings exposed.
c. The Owner's Representative shall inspect the sprinkler system
installation for leaks and proper operation. The Contractor shall
be responsible for repairing leaks and providing proper sprinkler
head operation. Repeat the testing and inspection procedure, as
required, until the system operates to the satisfaction of the
Owner's Representative.
d. The Contractor shall adjust heads for proper coverage.
2752-94 10 - 4
4. METHOD OF MEASUREMENT
The quantity of existing sprinkler head units removed, salvaged and
reinstalled, as specified herein or as directed by the Owner's Representative,
shall be measured per each of the various types included in the bid Proposal,
complete in place, installed in accordance with these specifications and the
manufacturer's recommendations, and accepted by the Owner's Representative.
A
The quantity of new sprinkler head units furnished and installed, as
r■ specified herein or as directed by the Owner's Representative, shall be measured
per each of the various types'included in the bid Proposal, complete in place,
installed in accordance with these specifications and the manufacturer's
recommendations, and accepted by the Owner's Representative.
The quantity of new underground PVC irrigation piping and fittings installed,
and connections made to the existing sprinkler system, shall not be measured for
separate payment, but shall be considered subsidiary to the sprinkler head unit
installation.
5. BASIS OF PAYMENT
Payment shall be made at the contract unit price bid per each for removing,
salvaging and reinstalling existing sprinkler head units of the various types
included in the bid Proposal, including removal of the existing sprinkler head
units and associating underground piping, installation of new underground PVC
irrigation piping and fittings required to complete the system, and for
trenching, backfilling and the specified restoration of the disturbed
landscaping. This price shall be full compensation for furnishing all materials
and for all labor, equipment, tools and incidentals necessary to complete the
item.
Payment shall be made at the contract unit price bid per each for furnishing
and installing new sprinkler head units of the various types included in the bid
Proposal, including installation of new underground PVC irrigation piping and
fittings required to complete the system, and for trenching, backfilling and the
specified restoration of the disturbed landscaping. This price shall be full
compensation for furnishing all materials and for all labor, equipment, tools and
incidentals necessary to complete the item.
r., No direct payment shall be made for underground PVC irrigation piping and
fittings required to install the new or existing sprinkler head units. No direct
payment shall be made for furnishing and installing grass sod as required to
restore disturbed landscaped areas. Payment for these items shall be considered
subsidiary to the installation of the new or existing sprinkler heads.
i,
Payment will be made under the following items:
2752-94
F
Remove, Salvage and Reinstall Existing Sprinkler Unit, pop-up spray
type, including trenching, backfilling and restoration of the disturbed
area, PVC irrigation piping and fittings, and connections to existing
irrigation system, complete in place, per each;
10 - 5
Remove, Salvage and Reinstall Existing Sprinkler Unit, pop-up impact
type, including trenching, backfilling and restoration of the disturbed
area, PVC irrigation piping and fittings, and connections to existing
irrigation system, complete in place, per each;
Furnish and Install New Sprinkler Unit, pop-up spray type, including
trenching, backfilling and restoration of the disturbed area, PVC
irrigation piping and fittings, and connections to existing irrigation
system, complete in place, per each; and
Furnish and Install New Sprinkler Unit, pop-up impact type, including
trenching, backfilling and restoration of the disturbed area, .PVC
irrigation piping and fittings, and connections to existing irrigation
system, complete in place, per each.
END OF SECTION
2752-94 10 - 6
I
t
ADDITIVE ALTERNATE
SECTION 11
PAVEMENT TRAFFIC MARKING
L. DESCRIPTION
�.. This item shall consist of furnishing and installing retroreflective
f preformed pavement markings in accordance with these specifications and at the
i locations shown on the plans, or as directed by the Owner's Representative. This
item shall also consist of the removal of existing painted traffic marking from
existing pavement at the locations specified herein, or as directed by the
Owner's Representative.
2. MATERIALS
2-1 General
The preformed pavement marking films shall consist of white or yellow
films with glass or ceramic beads incorporated to provide immediate and
continuing retroreflection. Preformed pavement marking for 4-inch wide lines
(yellow or white), 8-inch wide lines (yellow or white), and directional symbols
and legends (white) shall be 3M Stamark High Performance Tape, Series 380. or
approved equal. Preformed pavement marking for 24-inch wide stopbars (white)
shall be 3M Stamark Intersection Grade Tape, Series 420, or approved equal.
Preformed pavement marking shall be high durability, retroreflective,
pliant polymer films capable of being adhered to asphalt cement concrete pavement
or portland cement concrete pavement by a precoated pressure sensitive adhesive.
A primer may be used to precondition the pavement surface at the recommendation
of the marking manufacturer. The marking film shall conform to the pavement
contours by the action of traffic. The marking films shall be capable of
application on new asphalt concrete wearing courses during the paving operation
(inlaid installation) in accordance with the manufacturer's instructions.
Following proper installation and tamping, the marking shall be immediately ready
for opening to traffic.
Preformed pavement marking, words and symbols shall conform to the
applicable shapes and sizes as outlined in the current edition of the "Texas
Manual on Uniform Traffic Control Devices for Streets and Highways." Preformed
pavement films shall consist of white or yellow films with pigments selected and
blended to conform to standard highway colors through the expected life of the
film.
Prior to installation, the Contractor shall identify proper solvents
and/or primers (where recommended by the marking manufacturer) to be applied at
the time of installation, all equipment necessary for proper installation, and
manufacturer's recommendations for marking installation that will assure
effective product performance. The preformed marking materials shall be suitable
for use for a minimum of one (1) year after the date of receipt when stored in
accordance with the manufacturer's recommendations.
2752-94 11 - 1
2-2 Classification
Preformed pavement marking shall be classified as high durability
retroreflective pavement marking film for preformed transverse, channelizing, and
word\symbol marking subjected to high traffic volumes and severe wear conditions
such as repeated shear action from crossover or encroachment on channelization
lines, and stop, start, or turn movements.
2-3 Requirements for 3M Series 380 or Approved Equal Material
(a) Composition. Preformed pavement marking films shall be composed
of a mixture of high quality polymeric materials, pigments and retroreflective
glass beads distributed throughout its base sectional area, with a reflective
layer of ceramic beads bonded to a durable polyurethane topcoat surface. The
patterned surface shall have approximately 50% t 15% of the surface area raised -"
and presenting a near vertical face (0' to 60° angle from a line perpendicular
to pavement surface) to traffic in any direction. The channels between the
raised areas shall be substantially free of exposed beads or particles.
(b) Reflectance. White and yellow films shall have the following
initial expected retroreflectance values as measured in accordance with the
testing procedures of ASTM D4061. The photometric quality to be measured shall
be specific luminance (SL), and shall be expressed as millicandelas per square
foot per footcandle. The metric equivalent shall be expressed as millicandelas
per square meter per lux. The test distance shall be 50-feet (15-meters), and
the sample size shall be 2.0-feet by 2.5-feet (0.61-meters by 0.70-meters).
EXPECTED INITIAL REFLECTANCE:
White Sample
Yellow
_
Sample
Entrance angle
86.0' 86.5°*
86.0°
86.50*
Observation Angle
0.20 1.00
0.20
1.00
Specific Luminance, SL
1100 700
800
500 --
- * These retroreflection values are based on dark room photometric
readings per ASTM D4061, The Ecolux Retroreflectometer measurement geometry is
an 86.5° entrance angle and a 1.0° observation angle.
(c) Beads - Index of Refraction. All ceramic beads bonded to the
polyurethane coated patterned surface shall have a minimum index of refraction
of 1.70 when tested using the liquid oil immersion method. The glass beads mixed
into the pliant polymer shall have a minimum index of refraction of 1.50 when
tested using the liquid oil immersion method. Details on the liquid oil
immersion method are available from the R.P. Cargille Laboratories, Inc., Cedar
Grove, NJ.
(d) Acid Resistance. The beads shall show resistance to corrosion of
their surface after exposure to a 1% solution (by weight) of sulfuric acid.
Microscopic examination of the sample shall show no more than 15% of the beads
having a formation of a very distinct opaque white or corroded layer on their
surface.
(e) Color. The preformed markings shall consist of white and yellow
films with pigments selected and blended to conform to standard highway colors.
2752-94 11 - 2
� I i
r
e
{
(f) Skid Resistance. The patterned
surface of the
retroreflective
pliant polymer shall :provide an initial average
skid resistance
value of 45 BPN
*..
when tested in accordance with ASTM E303, except
values will be
taken at downweb
and at 45° angle from the downweb. These two values will
be averaged to
`
determine the skid resistance of the patterned
surface.
(g) Patchability. The pavement marking material shall be capable of
use patching worn areas of the same type in accordance with manufacturer's
instructions.
(h) Thickness. The patterned material without adhesive shall have a
minimum thickness of 0.065-inches (1.651mm) at the thickest portion of the
patterned cross-section, and a minimum thickness of 0.02-inches (0.508mm) at the
thinnest portion of the cross-section.
2-4 Requirements for 3M Series 420 or Approved Equal Material
(a) Composition. Preformed pavement marking films shall be composed
of a mixture of high quality polymeric materials, pigments and retroreflective
glass beads distributed throughout its base sectional area, with a reflective
layer of beads and a layer of skid resistant ceramic particles bonded to the top
urethane wear surface. The urethane wear surface shall have Fl nominal thickness
of 0.005-inches (0.13mm). The film shall have a precoated pressure sensitive
adhesive. The edges of the preformed film shall be clean cut and true.
(b) Color. The daytime color of the white film shall provide a
minimum initial luminance factor Y, of 80, and shall conform to the following
chromaticity requirements: x-0.290, y-0.315; x-0.310, y-0.295; x-0.330, y-0.360;
x-0.350, y-0.340. Measurements shall be made in accordance with ASTM E1349,
using illuminant "C" and 0/45 (45/0) geometry. Calculations shall be made in
accordance with ASTM D308 for the 2 standard observer.
(c) Reflectance. White film shall have the following initial minimum
reflectance values as measured in accordance with the testing procedures of ASTM
D4061. The photometric quality to be measured shall be specific luminance (SL),
and shall be expressed as millicandelas per square foot per footcandle. The
metric equivalent shall be expressed as millicandelas per square meter per lux.
The test distance shall be 50-feet (15-meters) , and the sample size shall be 2.0-
feet by 2.5-feet (0.61-meters by 0.70-meters).
MINIMUM INITIAL REFLECTANCE:
White Sample
Entrance angle 86.0° 86.0 86.50
Observation Angle 0.2* 0.5° 1.00
Specific Luminance, SL 700 500_ 400
(d) Skid Resistance. The surface of the retroreflective film shall
provide an initial minimum average skid resistance value of 55 BPN when tested
in accordance with ASTM E303.
(e) Retained Skid Resistance. The surface of the retroreflective film
shall retain an average skid resistance value of 45 BPN when tested in accordance
2752-94 11 - 3
with ASTM E303, for a period of one (1) year when installed in non -snow removal
areas The 45 BPN minimum value shall be an average of several readings taken in
both the wheel track and non -wheel track areas.
(f) Patchability. The pavement marking material shall be capable of
use patching worn areas of the same type in accordance with manufacturer's
instructions
(g) Tensile Strength and Elongation. The film shall have a minimum
tensile strength of 150 pounds per square inch of cross-section when measured in
the direction of the length of the roll and tested in accordance with ASTM D638,
except that a sample 6-inches by 1-inch (15.24cm x 2.54cm) shall be tested at a
temperature between 70°F and 80°F (21"C"and 26°C) using a jaw speed of 10 to 12
inches per minute (25.4cm to 30.5cm per minute). The sample shall not exceed 50%
elongation at break when tested by this method.
(h) Reflectivity Retention. No more than 15% of the beads shall be
lost due to popout and the predominant mode of failure shall be "wear down" of
the beads, when the film is tested with the Taber Abraser Simulation Test using
an H-18 wheel load and a 125 gram load, inspected at 200 cycles.
(i) Glass Beads. The size, quality and refractive index of the glass
beads shall be such that the performance requirements for the markings shall be
met The bead adhesion shall be such that beads are not easily removed when the
material surface is scratched with a thumbnail.
(j) Glass Bead Retention. The film shall have glass bead retention
qualities such that when a 2-inch by 6-inch (5.08cm x 15.24cm) sample is bent
over a %-inch (1.27cm) diameter mandrel, with the 2-inch dimension perpendicular
to the mandrel axis, microscopic examination of the area shall show no more than
10% of the beads with entrapment by the binder of less than 40%.
(k) Thickness. The patterned material without adhesive shall have a
minimum thickness of 0.060-inches (1.52mm).
3. CONSTRUCTION METHODS
3-1 General
The markings shall be applied in accordance with the manufacturer's
installation instructions. Preformed pavement marking for 4-inch wide lines, fl-
inch wide lines, and directional symbols and legends (3M Series 380, or approved
equal) installed in new asphalt concrete surfaces shall be inlaid in the new
surface, as described herein.
3-2 Weather Limitations
Preformed marking film shall be applied only upon dry and clean
pavement surfaces, when the weather is not foggy or windy, .and when the
atmospheric and pavement temperatures are within the manufacturer's recommended
application temperature ranges. Application of preformed marking will not be
performed when, in the opinion of the Owner's Representative, the weather
conditions are not conducive to said application.
2752 - 94 k11 - 4
7
3-3 Removal of Existing Painted Traffic Markings
The removal of existing painted traffic markings shall be accomplished
by water blasting, water -sand blasting, or by other methods proven satisfactory
to the Owner's Representative, that do not cause excessive damage to the existing
pavement surface. After removal of the existing markings, the existing asphalt
surface shall receive a single -course emulsified asphalt surface treatment in
Jr accordance with these specifications and approved by the Owner's Representative.
The surface treatment shall consist of emulsified asphalt conforming
to Grade SS-1 in accordance with ASTM D977, with an application temperature of
75° to 130° F. The emulsified asphalt shall be diluted with a sufficient
quantity of water to produce a mixture in which the amount asphalt, as a percent
of the total volume of the mixture, is ten percent (10%). The diluted asphalt
emulsion shall be applied to the pavement area at an approximate rate of 0.15 to
0.20 gallons per square yard. The Owner's Representative shall determine the
exact rate of distribution of the emulsified asphalt surface treatment. The
Contractor shall be responsible for protecting the emulsified asphalt surface
treatment from traffic or other damage until the treatment is fully cured or
accepted by the Owner's Representative. The Contractor shall repair any damage
to the surface treatment to the satisfaction of the Owner's Representative prior
to application of new pavement marking. New pavement marking will not be applied
over the surface treatment until the emulsified asphalt is fully cured.
Existing traffic markings shall be removed from existing pavement areas
approaching the intersections of 66th Street and Frankford Avenue, and 82nd
Street and Frankford Avenue. Generally, the limits of removal shall be as
required to provide for the new traffic marking as shown on the plans. The exact
limits of marking removal shall be as directed by the Owner's Representative.
3-4 Equipment
The marking film manufacturer shall provide automatic or manual film
application equipment. The application equipment shall be capable of applying
two (2) 4-inch (110mm) lines simultaneously, with a 4-inch (110mm) space between
them. The equipment shall apply an unlined precoated pressure sensitive adhesive
pavement marking film. Additional supplemental equipment for application of
primers, if required, or for manual tamping of the applied marking shall also be
provided by the film manufacturer. All equipment for the work shall be approved
by the Owner's Representative and shall include the equipment necessary to clean
! the surface to be marked, any mechanical application machinery if required, and
any auxiliary equipment as may be necessary to satisfactorily complete the work.
3-5 Preparation of the Pavement Surface
Immediately prior to application of the preformed markings, the
pavement surface shall be dry and free from all dirt, grease, oil laitance, or
other foreign material which would reduce the bond between the film and the
pavement surface. The pavement surface shall be cleaned by sweeping and blowing,
or by other methods as required.
3-6 Layout of Markings
On areas of pavement where no previously applied markings are available
to serve as a guide, the proposed markings shall be laid out in advance of the
film application.
2752-94 11 - 5
3-7 Marking Application
Marking films shall be applied at the locations and to the dimensions
and spacing shown on the plans or as directed by the Owner's Representative.
Markings shall not be applied until the layout and condition of the pavement
surface have been approved by the Owner's Representative. Marking film shall be
applied to the pavement surface in accordance with the film manufacturer's
recommendations. If required, a 'primer shall be applied prior to film
application.
Marking films applied in areas of new asphalt concrete surfaces,
constructed under this project, shall be installed as inlaid marking. The
marking films will be applied to the new asphalt surface prior to the final
rolling of the mat. The paving Contractor's final rolling of the fresh asphalt
surface shall inlay the film into the mat. Marking films applied to existing
asphalt surfaces or new or existing portland cement concrete surfaces shall not
be inlaid, but shall be applied directly to the completed pavement surface
The edges of the markings shall not vary from a straight line by more
than 1/2-inch in 50-feet, and the dimensions of the markings shall be within a
tolerance of plus or minus 5-percent,
The Contractor shall furnish certified test reports for all materials
shipped to the project. The reports shall not be interpreted as a basis for
final acceptance of the work.
3-8 Protection of Markings
After application, all markings shall be protected from damage until
the material adhesive has set, or as recommended by the material manufacturer.
Any damaged markings shall be immediately replaced.
3-9 Defective Workmanshia or Materials
When any material not conforming to the requirements of these
specifications or the plans has been delivered to the project or has been
incorporated in the work, or any work performed is of inferior quality, such
material or work shall be considered defective and shall be corrected as directed
by the Owner's Representative, at the expense of the Contractor.
3-10 performance Requirements and Material Replacement Obligations
The film manufacturer shall provide replacement film and adhesive for
materials determined to be inadequate due to:
(1) Failure to meet the minimum retained reflectance values as
specified herein; and/or
(2) Loss of film adhesion or complete wear -through.
The warranty period for the films shall be four (4) years for 4-inch
and 8-inch lines inlaid into the new asphalt concrete surfaces; four (4) years for 4-inch and 8-inch lines applied to new portland cement concrete surfaces; two
(2) years for legends and symbols inlaid into the new asphalt concrete surfaces;
two (2) years for legends and symbols 'primed and overlaid on existing asphalt
concrete surfaces; two (2) years for legends and symbols primed and overlaid on
2752-94 11 - 6
existing or new portland cement concrete surfaces; two (2) years for 24-inch
stopbars inlaid into new asphalt concrete surfaces; and one (1) year for 24-inch
,.� stopbars overlaid on existing asphalt concrete, existing portland cement concrete
f or new portland cement concrete surfaces.
The prime Contractor shall be responsible for providing installation,
at no expense to the Owner, for any marking materials found to be defective and
replaced within one (1) year of the final acceptance of the completed project.
4. METHOD OF MEASUREMENT
The quantity of existing painted traffic markings to be removed, as
specified herein or as directed by the Owner's Representative, shall be the area
of each word, symbol or shape removed, measured in square feet., and shall include
furnishing and applying an emulsified asphalt surface treatment on the existing
pavement after removal operations, as specified. The removal of existing
pavement markings, including the emulsified asphalt surface treatment, shall be
performed in accordance with these specifications and accepted by the Owner's
Representative.
fThe quantity of asphalt emulsion used for the emulsified asphalt surface
treatment shall not be measured directly, but shall be considered a subsidiary
item to the removal operation. This emulsified asphalt surface treatment shall
r" be applied to the existing pavement surface following the removal of existing
painted traffic markings. The application shall be performed in accordance with
these specifications and accepted by the Owner's Representative.
The quantity of preformed pavement marking film for lines, as shown on the
plans, shall be the number of linear feet of marking film, of the various widths
shown in the Proposal, installed, complete, measured in place, performed in
accordance with these specifications and accepted by the Owner's Representative.
The quantity of preformed pavement marking film for various traffic
directional symbols, as shown on the plans, shall be measured per each symbol
installed, complete in place, performed in accordance with these specifications
and accepted by the Owner's Representative.
5. BASIS OF PAYMENT
Payment shall be made at the contract unit price bid per square foot of
existing painted traffic marking removed, including furnishing and applying an
emulsified asphalt surface treatment on the existing pavement surface. This
price shall be full compensation for furnishing all materials and for all labor,
equipment, tools and incidentals necessary to complete the item.
No direct payment shall be made for the emulsified asphalt surface
treatment. Emulsified asphalt materials and application shall.be considered
subsidiary to the bid item for removal of existing painted traffic markings.
Payment shall be made at the contract unit price bid per linear foot of
preformed pavement marking film of the various widths shown in the Proposal.
2752-94 11 - 7
This price shall be full compensation for furnishing all materials and for all
labor, equipment, tools and incidentals necessary to complete the item.
Payment shall be made at the contract unit price bid per each of preformed
pavement marking film for various traffic directional symbols. This price shall
be full compensation for furnishing all materials and for all labor, equipment,
tools and incidentals necessary to complete the item.
Payment will be made under the following items:
Removal of Existing Painted Traffic Markings, including application of
an emulsified asphalt surface treatment, complete, per square foot;
Preformed Traffic Marking, 4-inch wide lines, yellow or white,
complete in place, per linear foot;
Preformed Traffic Marking, 8-inch wide lines, yellow or white,
complete in place, per linear foot;
Preformed Traffic Marking, 24-inch wide stop bars, white, complete in
place, per linear foot; and
Preformed Traffic Marking, various traffic directional symbols, yellow
or white, complete in place, per each.
END OF SECTION
W
z
FSPECIAL CONDITIONS
SC-1 SCOPE OF WORK
The work to be accomplished under these specifications, including the
plans, consists of construction work for the City of Lubbock, Texas, including
but not limited to, a BASE BID consisting of the removal of existing asphalt
pavement, concrete curb and gutter and concrete slabs; the construction of rigid
r� (portland cement concrete) and flexible (bituminous) street pavements on a
prepared underlying course; the installation of joint sealant materials in the
prepared joints of the rigid pavements; the construction of concrete curb and
gutter and miscellaneous concrete slabs; and related items of work; and an
ADDITIVE ALTERNATE consisting of the installation of preformed traffic marking
materials and related items of work.
All labor, materials and equipment necessary to complete the work called
for in these specifications and shown on the plans shall be furnished by the
Contractor.
Payment for the various items of work will be made as specified under
the various payment paragraphs of the technical sections.
SC-2 CONTRACT DOCUMENTS
All work covered by this contract shall be done in accordance with the
Contract Documents described in the General Conditions. The drawings included
in the documents consist of the plans entitled "City of Lubbock,. Texas, Frankford
Avenue Reconstruction, Street Improvements," dated November, 1994..
All bidders shall be thoroughly familiar with all of the.drawings and
specifications. The Contractor shall be responsible for the satisfactory
completion of all work shown on the drawings or specified. .
The intent of the plans and specifications is to prescribe a complete
work or improvement which the Contractor undertakes to do in full compliance with
the plans, the specifications, the special provisions, proposal, and contract.
The Contractor shall do all work including such additional, extra, and incidental
j work as may be considered necessary to complete the project in a satisfactory and
` acceptable manner, as provided in the plans, proposal, and contract. He shall
furnish, unless otherwise provided in the specifications, special provisions, or
contract, all materials, equipment, tools, labor and incidentals necessary to
V
i., prosecute the completion of the work.
The Contract Documents are complementary, and what is called for by any
one shall be as binding as if called for by all. In case of conflict between any
of the Contract Documents, priority of interpretation shall be in the following
order: Signed Agreement, Performance Bond, Special Bonds (if any), Proposal,
Special Conditions, Notice to Bidders, Instructions to Bidders, Technical
Specifications, Plans and General Conditions of the Agreement.
2752-94 SC - 1
r
SC-3 SEPARATE CONTRACTS
The Owner reserves the right to let other contracts in connection with
or in the vicinity of the project. The Contractor shall afford other contractors
reasonable opportunity for the introduction and storage of their materials and
the execution of their work, and shall coordinate his work and theirs. The
Contractor's coordination with other contractors shall require the approval of
the Owner's Representative.
SC-4 TIME AND ORDER OF COMPLETION
No work will be allowed from November 1st through January 2nd unless
approved by the Owner's Representative.
The construction covered by these specifications shall be "substantially
completed" within 200 working days after the date of the written Notice to
Proceed. The Contractor may commence work upon receipt of the executed contract
and shall commence work not later than the tenth (loth) day after the date of the
Notice to Proceed, provided such Notice to Proceed shall not be issued prior to
execution of the Contract by the Owner.
The Contractor will be permitted to prosecute certain portions of the
work in the order and manner of his own choosing to the best interest of the
project. However, the work shall be conducted in such manner and with such
materials, equipment and labor as may be required to insure completion in
accordance with the plans and specifications within the time stated in the
Proposal and in the Contract. The Contractor shall furnish the Owner's
Representative with his proposed progress schedule and this schedule shall be
approved by the Owner's Representative before work is commenced on the project.
The Contractor shall schedule his work well in advance of actual operations and
shall keep the Owner's Representative advised of this schedule.
The Contractor's activities shall be phased to provide vehicular access
along Frankford Avenue during the course of construction in accordance with the
traffic plan. Generally, the phasing shall provide for construction and
completion of the west 28-foot width of Frankford Avenue as a first phase prior
to starting construction on the remainder of the project. Construction of the
first phase will require demolition of a portion of the existing pavements.
During this first construction phase, all traffic will be routed along the
remaining eastern portion of the existing Frankford Avenue pavement. After
completion and acceptance of the first phase, the second phase can be started.
The second phase shall provide reconstruction of the remainder of the Frankford
Avenue pavements, as shown on the drawings. Temporary access to side streets
will be provided during both phases of construction. The Contractor shall
provide and maintain all necessary barricades and signage as'required to
effectively mark and protect the construction site, as specified herein and as
directed by the Owner's Representative.
The term "substantially completed," as defined in the GENERAL
CONDITIONS, is further defined, for this_ project, to mean that degree of
completion which, after all major structures and work are completed and An
equipment is installed and operable, will permit continuous functioning of all
2752-94 SC - 2
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elements of the project, in accordance with specified requirements and without
shutdowns for repairs or adjustments. This may occur before all elements of the
project have been fully completed and made ready for acceptance. However, for
the project to be considered substantially complete, the work remaining to be
done before final acceptance shall consist only of minor construction items,
cleanup, and minor adjustments to equipment, which do not interfere with
operation.
After the project has been substantially completed, the Contractor shall
diligently prosecute the remainder of the work to final completion.
Not more than seven (7) calendar days shall elapse between the time
subgrade or base course preparation is begun and the beginning of the concrete
operation.
The Contractor is responsible for communications with adjacent property
owners during construction that may limit or deny access to their properties.
The Contractor shall, as far as possible, endeavor to maintain access to the
various businesses and residences affected by this project.
SC-5 INSURANCE
The Contractor shall not begin work under this contract until he has
obtained all insurance as required in the General Conditions, of the Agreement,
has furnished proof of same to the Owner, and the Owner shall have approved same.
The Owner's Protective or Contingent Liability Insurance and Property
Damage Liability Insurance policy, specified in the General Conditions, shall be
?,. amended to include the Engineer as additional insured. A copy of this policy
shall be delivered to the Owner and to the Engineer.
A certificate of Insurance is included in the specifications and
Contract Documents for this project. The Contractor will be required to have
five (5) extra copies of this certificate executed by his insurance company or
companies. This certificate will become a part of the Contract Documents and
must be included with the Contract Documents before execution by the City of
Lubbock. Coverages specified herein apply to all operations of the Contractor
in connection with this work, including automobiles and other vehicles.
Coverage shall extend to all subcontractors unless proof of minimum
coverage required is submitted separately by each subcontractor not so covered.
SC-6 WORKING DAY/CALENDAR DAY
The project completion will be based on working days allowed instead of
calendar days allowed.
All further references in these documents to the number of calendar days
to complete the project are hereby revised and termed the number of working days
to complete the project.
2752-94 SC - 3
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u
A working day is defined as a calendar day, not including Saturdays,
Sundays, or designated City of Lubbock holidays, in which weather or other
conditions not under the control of the Contractor will permit the performance
of the principal unit of work underway for a continuous period of not less than
seven (7) hours between 7:00 a.m. and 6:00 p.m. For every Saturday or designated
City of Lubbock holiday on which the Contractor chooses, and has authorization
to work, one day will be charged against the contract working time when weather
conditions will permit seven (7) hours of work as delineated above. Work on
Sunday will not be permitted except in cases of extreme emergency and the only
with the written permission of the Owner's Representative. If Sunday work is
permitted, working time will be charged on the same basis as week days.
The Contractor shall complete the work within the number of working days
stated in these documents. For the purpose of computation, working days will be
considered to begin with the effective date stated in the "Notice to Proceed".
The Owner's Representative will furnish the Contractor a monthly
statement showing the number of working days charged during the month, total
number of working days allowed in the contract, and the working days remaining
under contract. The Contractor will be allowed ten (10) days in which to protest
the correctness of the statement. This protest shall be in writing, and shall
show cause. Not filing a protest within the allowed ten (10) days for any
statement will indicate the Contractor's approval of the time charges as shown
on that time statement and future consideration of that statement will not be
permitted. -If the satisfactory completion of the contract shall require
unforseen work or work and materials in greater amounts than these set forth in
the contract, then additional working days or suspension of time charges will be
allowed the Contractor equal to the time which, in the opinion of the Owner's
Representative, the work as a whole is delayed.
If the Contractor fails to complete the contract in the working days
specified, the stated liquidated damages.will be charged for each working day
thereafter.
SC-7 WORKING HOURS
Construction work under this contract requiring an inspector will not
be performed on weekends or holidays unless the following conditions exist:
(A) The project being constructed is essential to the City of
Lubbock's ability to provide the necessary services to it's
citizens.
(B) Delays in construction are due to factors outside the control of
the Contractor. The Contractor is approaching the penalty
provisions of the contract and Contractor can show he has made a
diligent effort to complete the contract within the allotted time.
. -Before construction work requiring an inspector is to be performed on
weekends or holidays, the Contractor must notify the Owner's Representative not
less than three (3) full working days prior to the weekend or holiday he desires
to do work and obtain written permission from the Owner's Representative to do
2752-94 SC - 4
such work. The final decision on weekends or holidays will be
made by the
Owner's Representative.
In any event, if
a condition should occur or arise at the
site of this
project or from the work
being done under this contract which is
hazardous or
dangerous to property or
life, the Contractor shall immediately commence work
regardless of the day of
the week or the time of day, to correct
or alleviate
such condition so that it
is no longer dangerous to property or life.
No work will be allowed from November 1st through January 2nd unless
approved by the Owner's Representative.
SC-8 PROGRESS SCHEDULE
Within thirty (30) days after award of the contract, the Contractor
shall submit a progress schedule for the project. The progress schedule shall
be prepared in a form suitable to the Owner's Representative and shall show the
proposed starting and completion dates for each phase of construction and each
item of work within each phase. The progress schedule shall include a "Percent
Complete Curve", with the monthly amount, cumulative amount and cumulative
percent. The progress schedule, when submitted in suitable form and provided the
schedule indicates certain completion of the project within the time specified,
will be approved in writing by the Owner's Representative.
Revision or changes in the approved progress schedule may be made only
with approval of the Owner's Representative.
SC-9 RIGHT-OF-WAY AND RIGHT -OF -ENTRY
The Owner will provide all right-of-way and right -of -entry for the
construction of.the project.
SC-10 LIMITATION OF WORK AREA
The Contractor shall make his own provisions for his offices, storage,
etc. The Contractor shall be entirely responsible for the security of all his
materials, equipment and property and to this end he may construct fences, employ
watchmen or take any other measures which do not interfere with the Owner's
operations.
SC-11 CHANGES IN THE WORK
The Owner may increase the quantity of the work in the Contract by
supplementary projects, not included in the Contract, without invalidating the
Contract, and without relieving or releasing the Contractor from any of his
obligations under the Contract or any guarantee given by him pursuant to the
Contract provisions, and without affecting the validity of the guaranty bonds,
and without relieving or releasing the surety or sureties of said bonds. All
such work shall be executed under the terms of the original. Contract unless it
is expressly provided otherwise.
2752-94
SC - 5
If applicable unit prices are contained in the agreement (established
as a result of either a unit price bid or a Supplement Schedule of Unit Prices)
the Owner may order the Contractor to proceed with desired additions to the work
as a result of supplementary projects, the value of such changes to be determined
by the measured quantities involved and the applicable unit prices specified in
the Contract; provided that in case of a unit price contract the net value of all
additions does not increase or decrease the original total amount shown in the
Agreement by more than twenty-five percent (25%).
Except for the purpose of affording protection against any emergency
endangering health, life, limb, or property, the Contractor shall make no change
in the materials used or in the specified manner or construction and/or
installing the improvements or supply additional labor, services, or materials
beyond that actually required for the execution of the Contract, unless in
pursuance of a written order from the Owner authorizing the Contractor to proceed
with the change. No claim for an adjustment of the contract price will be valid
unless so ordered.
SC-12 CONTRACTOR'S SUPERINTENDENCE
The Contractor's Superintendent and/or his assistants will not be
allowed to serve two functions simultaneously, such as operating machinery and
acting as Superintendent at the same time. The Contractor's Superintendent must
be free of individual responsibilities to enable him to give the entire project
his constant attention to facilitate the progress thereof.
SC-13 SUBCONTRACTORS
The Contractor shall not award any work to any subcontractor without
prior written approval of the Owner. Such approval will not be given until the
Contractor submits to the Owner a written statement concerning the proposed award
to the subcontractor, which statement shall contain such information as the Owner
may require.
The Contractor shall be as fully responsible to the Owner for the acts
and omissions of his subcontractors, and of persons either directly or indirectly
employed by them, as he is for the acts and omissions of persons directly
employed by him. The Contractor shall cause appropriate provisions to be
inserted in all subcontracts relative to the work to bind subcontractors to the
Contractor by the terms of the General Conditions and other contract documents
insofar as applicable to the work of subcontractors and to give the Contractor
the same power as regard terminating any subcontract that the Owner may exercise
over the Contractor under any provision of the contract documents.
Nothing contained in this contract shall create any contractual relation
between any subcontractor and the Owner and said subcontractor will look
exclusively to Contractor for any payments due subcontractor.
SC-14 ELECTRIC POWER AND NATURAL GAS
The Contractor shall make his own provisions for his electrical, natural
gas and other fuel requirements and shall pay for electricity, gas or fuel
2752-94 SC - 6
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consumed during the construction of the project. The Contractor shall construct
his own service lines and such construction shall be in strict accordance with
r. all applicable codes and laws.
SC-15 WATER FOR CONSTRUCTION
Water for this project will be furnished by the City of Lubbock at fire
hydrantsdesignated by the Contractor for which there will be no charge. The
Contractor will be furnished loading racks by the Director of Water Utilities at
�• no charge. The loading rack will be equipped with a valve which will be pad-
locked at all times except when the Contractor's truck is loading. The valve on
the loading rack shall be used by the Contractor and at no time will the
Contractor use the fire hydrant valve. The padlock on the rack valve shall be
furnished by the Contractor. The Contractor shall not use any fire hydrants for
water loading unless there is an authorized rack on the fire hydrant. The
Contractor will not be allowed to use water from authorized loading racks except
on City approved projects. Water, which is supplied by the City, is intended for
use in compacting subgrade, subbase and base and maintaining dust control. It
is not the intention of the City to furnish water for use in mixing concrete.
In the event damage occurs to pavement or adjacent facilities in the
area of the fire hydrant, which was caused by the Contractor's operation of the
loading rack, it will be the Contractor's responsibility and expense to make
repairs to paving, curb and gutter, etc. as required by the Owner's
Representative.
SC-16 SANITARY FACILITIES
The Contractor shall provide adequate toilet facilities for the use of
his workmen and shall maintain such facilities in a clean and sanitary condition
throughout the construction period. Such facilities shall be conveniently
located for use of the workmen and the entire area shall be maintained in a clean
and sanitary condition. After completion of the work, all temporary toilet
facilities shall be removed from the site. Pit -type toilets will not be allowed.
SC-17 MATERIAL TESTS
These requirements apply to this contract and all construction work on
all streets and alleys, including new subdivisions, streets, and alley use
permits.
The Contractor will bear the cost of all material tests on hot mix
design and concrete design. The City will bear the cost of tests during
construction, such as density on caliche base, gradation on concrete and paving
aggregates, and density and asphalt extraction tests on hot -mix and black base.
On all testing performed by the City of Lubbock Laboratory. the City of
Lubbock Laboratory will be the final authority on all tests.
(a) Caliche Base Materials
Before materials can be used on any street, current (not older than
30 days) test reports will be submitted to the Owner's Representative for
2752-94
SC - 7
approval and test reports will be required every 30 days before this material can
be used continuously on City streets. During the construction period, tests that
fail will require re -testing by the City lab at the Contractor's expense.
(b) Concrete Mix Design and Preconstruction Test
The Contractor or Concrete Supplier will submit a mix design on the
crushed stone or gravel approximately twenty (20) days before beginning the
concrete operation for approval by the Owner's Representative. Contractors or
Concrete Suppliers that supply concrete for any contract, new subdivision,
street, or alley use permits willbe required to submit to the Owner's
Representative a concrete mix design every thirty (30) days to forty-five (45)
days for approval. Any Contractor or Concrete Supplier that does not have a
current mix design on file with the Owner's Representative will not be permitted
to furnish concrete for any project within the City of Lubbock until said mix
design is received. After the mix design is submitted and approved by the
Owner's Representative, no changes in the design or materials will be permitted
without approval of the Owner's Representative.
The City of Lubbock Testing Laboratory will make test specimens
during the construction period. When test specimens fail to meet the required
strength at the 28 day break, the concrete in question will be cored and tested
for compressive strength, and the limits of deficient strength concrete pavement
will be identified. Deficient strength pavement will be removed and replaced at
the Contractor's expense.
(c) Cement
Certified mill test on each car or transport.
(d) AsRhalt
Certified lab test.
(e) Density Tests
The City of Lubbock Testing Laboratory will provide density tests
on the base and subgrade.
(f) Paving Aggregate
All crushed stone shall have a maximum of eighteen percent (18%)
loss when tested by the five (5) cycle magnesium sulfate soundness test (ASTM C-
88) as performed by the City of Lubbock Testing Laboratory.
(g) Bituminous Surface and Base Courses (Hot Mix Asphaltic Concrete)
The Contractor shall provide tests on all aggregates, prior to use,
for approval of source, asphalt tests as required above, tests necessary for the
establishment of an approved job mix, and a mix design for the proposed material,
as required under Section 4, BITUMINOUS BASE AND SURFACE COURSE, of these
specifications. After the mix designs are submitted and approved by the Owner's
Representative, no changes in the designs or materials will be permitted without
approval of the Owner's Representative. -
2752-94 SC - 8
1 SC-18 SHOP DRAWINGS/SUBMITTALS
r-•
The Contractor shall submit to the Owner's Representative with such
promptness as to cause no delay in his own work or in that of any other
Contractor, six copies unless otherwise specified, of all shop and/or setting
drawings and schedules required for the work of the various trades, and the
r`
Owner's Representative shall pass upon them with reasonable promptness, making
I,
required corrections. The Contractor shall make any corrections required by the
Owner's Representative, file with him the corrected copies and furnish such other
copies as may be needed. If the Contractor and/or the Manufacturer desires
4
additional approved sets, the number of final copies submitted shall be the four
'
copies for the Owner's Representative plus the copies desired by the Contractor
and/or Manufacturer. The approval of such drawings or schedules by the Owner's
Representative shall not relieve the Contractor from responsibility for
deviations from drawings or specifications, unless he has in writing called the
Owner's Representative's attention to such deviations at the time of submission
nor shall it relieve him from responsibility for errors of any sort in shop
r
drawings or schedules.
All materials to be used on the vroject shall be submitted to the
Owner's Representative for approval prior to beginning construction using such
materials.
SC-19 LINES AND GRADES
The Owner will provide the Contractor with horizontal control points,
and all necessary information relating to these control points. The Owner will
also provide the Contractor with a benchmark for vertical control.
The Contractor will be required to set "blue tops" for the subgrade,
�►- subbase and base courses. Where portland cement concrete pavement is
constructed, forms shall be set in accordance with the tolerances specified and
in accordance with the layout shown on the plans. The Owner will check all "blue
tops," grade control, concrete forms and all major layouts at his discretion, but
this check will not relieve the Contractor of the responsibility of correctly
locating line and grade in accordance with the plans and specifications.
SC-20 BARRICADES, WATCHMEN AND SAFETY MEASURES
The Contractor shall, at his own expense, furnish and erect such
barricades, fences, lights and danger signals, and shall take such other
precautionary measures for the protection of persons, property and the work, as
may be necessary. Barricades shall be painted in two contrasting colors and,
from sunset to sunrise, at least one light shall be maintained at each barricade.
The work shall be carried on, at all times, in a manner which will minimize
danger to the public or the workmen. All barricades, warning signs, barriers,
cones, lights, signals and other such type devices shall conform to details as
directed by the Owner's Representative and as indicated in the current 'Texas
Manual on Uniform Traffic Control Devices."
Any excavations left open during nights, or during any non -working
period of more than seven (7) hours, shall be fenced with minimum 6-foot tall,
2752-94 SC - 9
9
safety -orange -colored, temporary fencing, as directed by the Owner's
Representative. Excavations shall also be marked with lights, as directed by the
Owner's Representative.
The Contractor will be held responsible for all damage to the work due
to failure of barricades, signs, lights and watchmen to protect it, and when
damage is. incurred, the damaged portion shall be immediately removed and replaced
by the Contractor at his own cost and expense. The Contractor's responsibility
for the maintenance of barricades, signs, lights and for providing watchmen,
shall not cease until the date of the project Certificate of Acceptance.
SC-21 MAINTENANCE OF DETOURS
The Contractor shall do such work as may be necessary. to maintain
detours and facilities for safe public travel during all weather conditions.
There shall be maintained in passable condition such .temporary roads and
structures as may be necessary to accommodate public travel. Temporary
approaches and crossings of intersecting roadways shall be provided and
maintained in a safe and passable condition by the Contractor at his entire
expense.
SC-22 MAINTAINING TRAFFIC
Traffic shall be allowed access to the work area as long as no
construction related danger is present. Sufficient barricades and lights will
be provided by the Contractor when access to the work area is not possible.
Closure of streets will not be allowed unless prior approval from the Owner's
Representative is obtained. The Contractor shall provide and maintain traffic
access to all public and private driveways along the construction corridor during
the construction period. When closure of public or private driveways or streets
is necessitated by construction, the contractor shall be responsible for
providing an approved alternate access to areas served by the closed driveways
or streets.
SC-23 PROTECTION OF PROPERTY
The Contractor shall exercise care to prevent damage to all structures,
either above or below ground, including buildings, fences,: pipelines, utilities,
roads, etc., whether publicly or privately owned and including work performed by
others. The Contractor shall be responsible for locating all underground
facilities that might be damaged by the proposed construction.
The Contractor shall be responsible for all damage done to either public
or private property during the course of construction except as specifically
provided otherwise in these specifications.
Various existing underground utilities and structures are shown on the
plans. Their locations are believed to be reasonably accurate but are not
guaranteed. Though an effort has been made to locate and mark, on the plans, all
underground utilities, the Contractor is warned that unmarked utilities may exist
within the construction area. The Contractor shall be fully responsible for all
underground facilities which are shown on the drawings or which can be located
2752-94 SC - 10
1 with reasonable effort or which are brought to the attention of the Contractor
in any manner. He will not be held responsible for such underground facilities,
with respect to which he could, otherwise, have had no knowledge. The Contractor
shall direct his efforts toward protecting existing facilities both to preventing
t any significant interference with normal activities and to protecting such
facilities from damage. The Contractor shall contact all utility entities prior
to the start of construction, to locate existing lines.
The Contractor shall make all necessary provisions for supporting
existing power poles and other overhead and underground utilities and facilities
during excavation activities adjacent to such facilities. The Contractor shall
coordinate his efforts and fully comply with any requirements of the owner of the
affected utility or facility. The Contractor is responsible for contacting and
coordinating with the owner of the facility.
SC-24 UNDERGROUND UTILITIES
The Contractor's attention is directed to the fact that pipelines and
other underground installations as may be shown on the plans have been taken from
the best available information. There may be other pipelines or installations
constructed which are not shown. The Contractor shall save harmless the City and
Engineer from any and all suits or claims resulting from damage by his operations
to any pipeline or underground installation.
It is the Contractor's responsibility, during the; period of street
construction, to insure that all utility cuts in the limits of street
construction have been properly backfilled, compacted, and the top six inches
(6") backfilled with 3-sack concrete. It is not the intent to require the
Contractor to provide for the utility cut repair but for the individual utility
company making the cut to provide their own repairs.
SC-25 REMOVING OBSTRUCTIONS
The Contractor shall familiarize himself with the existing obstructions,
including sidewalks, trees, poles, etc., prior to construction. It shall be the
Contractor's responsibility to remove these obstructions at the direction of the
Owner's Representative, except that the utility companies will move their
equipment at no cost to the Contractor. The Contractor will receive no
compensation for any delay caused by the utility companies in relocating or
removing their equipment.
r SC-26 PUBLIC SAFETY AND CONVENIENCE
t,
The safety of the public and the convenience of traffic shall be
r" regarded as of prime importance. It shall be the entire responsibility of the
Contractor to provide for ingress and egress to private property. Ingress and
egress to private property shall be provided as specified, or as directed by the
r. Owner's Representative.
The Contractor shall plan and execute his operations in a manner that
will cause the minimum interference with traffic. The Contractor shall secure
the Owner's Representative's approval of his proposed plan of operation, sequence
2752-94 SC - 11
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i
of work, and methods of providing for the safe passage of traffic before it is
placed into operation. If, at any timeduringconstruction, the approved plan
does not accomplish the intended purpose, due to weather or other conditions
affecting the safe handling of traffic, the Contractor shall immediately make
necessary changes therein to correct the unsatisfactory conditions.
At night or otherwise, all equipment not in use shall be stored in such
a manner and at such locations as not to interfere with the safe passage of
traffic. The Contractor shall provide and maintain flagmen at such points and
for such periods of time as may be required to provide for the safety and
convenience of public travel and Contractor's personnel, and as directed by the
Owner's Representative. Flagmen shall be English speaking, courteous, well
informed, physically and mentally able io effectually perform their duties in
safe -guarding and directing traffic and protecting the work, and shall be neatly
attired and groomed at all times when on duty. When directing, flagmen shall use
standard attire, flags and signals and follow the flagging procedures set forth
in the current edition of the TEXAS MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FOR
STREETS AND HIGHWAYS.
SC-27 CONFORMITY WITH PLANS AND ALLOWABLE DEVIATIONS
Finished surfaces shall conform to the lines, grades, cross sections and
dimensions. Any deviation from the plans which may be required by the exigencies
of construction shall be determined by the Owner's Representative and authorized
by him in writing.
SC-28 REMOVAL OF DEFECTIVE AND UNAUTHORIZED WORK
All work which has been rejected or condemned shall be repaired or, if
it cannot be satisfactorily repaired, removed and replaced at, the Contractor's
expense. Materials not conforming to the requirements of the specifications
shall be removed immediately from the site of the work and replaced with
satisfactory material by the Contractor at his expense.
Work done beyond that shown on the plans, or as given, except as herein
provided, work done without proper inspection, or any extra or unclassified work
done without written authority and prior agreement in writing as to prices, will
be done at the Contractor's risk and will be considered unauthorized and, at the
option of the Owner's Representative, may not be measured and paid for and may
be ordered removed and replaced at the Contractor's expense.
Upon the failure of the Contractor to repair satisfactorily or to remove
and replace, if so directed, rejected, unauthorized, or condemned work or
materials immediately after receiving formal notice from the Owner's
Representative, the Owner may recover for such defective work or materials on the
Contractor's bond, or by action in a court having proper jurisdiction over such
matters, or may employ labor and equipment and satisfactorily repair or remove
and replace such work and charge the cost of the same to -the Contractor, which
cost will be deducted from any money due him.
2752-94 SC 12
7 SC-29 CONTRACTOR'S RESPONSIBILITY FOR WORK
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Until acceptance by the Owner's Representative of any part or all of the
construction, as provided for in these specifications, it shall be under the
charge and care of the Contractor, and he shall take every necessary precaution
against injury or damage to any part of the work by the action of the elements
or from any other cause whatsoever, whether arising from the execution or from
the non -execution of the work. The Contractor shall rebuild, repair, restore,
and make good, at his own expense, all injuries or damage to any portion of the
work occasioned by any of the above causes before its completion and acceptance.
SC-30 CORRECTION OF FAULTY WORK AFTER FINAL PAYMENT
The making of the final payment by the Owner to the Contractor shall not
relieve the Contractor of responsibility for faulty materials or workmanship.
The Contractor shall promptly replace any such defects discovered within one year
from the date of written acceptance of the work.
The Performance Bond shall remain in effect until one year after the
date of the written acceptance of the work to insure compliance by the Contractor
with the requirements of this paragraph.
SC-31 TEXAS STATE SALES TAX
The Contractor's attention is directed to Rule 3.291, paragraphs (a)(1),
defining separated contracts, subsection (b)(3) discussing separated contracts,
and subsection (c) discussing exempt contracts. Reference: Texas Tax Code,
Chapter 151.
Contractors should note those organizations in subsection (c) that the
rule shows as being exempt no longer qualify for the exemption. The rule states
that the contractors improving realty for organizations listed in the Texas Tax
Code 151.309 and 151.310 are exempt from tax. THIS IS NO LONGER TRUE EFFECTIVE
WITH CONTRACTS SIGNED ON OR AFTER AUGUST 15, 1991.
Only those contracts with school districts and nonprofit hospitals
qualify for the exemption in subsection (c) of Rule 3.291.
The Comptroller is amending the rule to reflect this change.
If the low bidder elects to operate under a separated contract as
defined by Rule 3.291 by obtaining the necessary permit or permits from the State
Comptroller's office allowing the purchase of materials for incorporation in this
purchase, the low bidder shall identify separately from all other charges the
total agreed contract price for materials incorporated into the project. This
form shall be filled out by the low bidder in each of the bound copies of the
contract. Total materials shall only include materials physically incorporated
into the realty.
If the Contractor operated under a "separated contract", the Owner will
furnish the Contractor with exemption certificates for the applicable materials.
2752-94 SC - 13
In order to comply with the requirements of Rule 3.291, as mentioned
above, it will be necessary for the Contractor to obtain a sales tax permit. It
will also be necessary that the Contractor issue resale certificates to his
suppliers.
Sales tax applications for a sales tax permit and information regarding
resale certificates may be obtained by writing to:
Comptroller of Public Accounts
Capitol Station
Austin, Texas 78774
The Contractor may also receive information or request sales tax permit
applications by calling the State Comptroller's toll free number 1-800-252-5555.
Subcontractors are eligible for sales tax exemption if the subcontract
is made in such a manner that the charges for materials are separated from all
other charges. The procedure described above will effect a satisfactory
separation. When subcontractors are handled in this manner, the Contractor must
issue a resale certificate to his supplier.
SC-32 WAGE RATES
The Contractor must abide by the Wage and Hour Laws of the State of
Texas and must pay not less than the rates legally prescribed. The current wage
determination to apply to this project is included in these specifications.
SC-33 PAYMENT
Payment for the work will be made on the basis of the Proposal on which
award is made and which is included in the Contract. All payments will be made
in accordance with the provisions of GENERAL CONDITIONS governing such payments.
The amount retained by the Owner from partial payments will be 5 percent.
The statement, or estimate, of total value of work done and materials
on hand, prepared for each partial payment, shall include the invoice price of
all materials and equipment to be incorporated in the work, which is on hand on
the last day of the payment period. Invoices shall be furnished to the Owner's
Representative for materials on hand before payment will be allowed for such
materials. Paving materials, such as base material, aggregates, cement, asphalt,
reinforcing steel and joint material, shall not be included in "Materials on
Hand" tabulations, and shall not be considered for payment until constructed
under the various paving items. Material and equipment items will be carried,
on the partial payment statements, as "On Hand" until they are installed and
operated, with all required Maintenance and Operation Manuals, Parts Lists,
Installation Drawings, and other required data, delivered to the Owner's
Representative. They will then be carried as work done, subject to the specified
retainage, until all equipment has met all required performance tests and final -
acceptance is made on the entire work. Unless otherwise approved by the Owner's
Representative, only eligible materials and equipment actually stored on the
project site and intended for incorporation into this project will be considered
"On Hand."
2752-94 SC - 14
F
FSC-34 AFFIDAVIT OF BILLS PAID
Prior to final acceptance of this project by the Owner, the Contractor
shall execute an affidavit that all bills for labor, materials and incidentals
incurred in the construction of these improvements, have been paid in full,
including any retainage, and that there are no claims pending, of which he has
been notified.
SC-35 FINAL CLEANING UP
As each intermediate phase of work is completed and prior to opening any
portion of the project, the Contractor shall be responsible for cleaning the
construction site and adjacent pavement.
Upon completion of the work and before acceptance and final payment will
be made, the Contractor shall remove from the: site all machinery, equipment,
surplus, and discarded materials, rubbish and temporary structures. Material
cleared from the site and deposited on property adjacent, will not be considered
as being disposed of satisfactorily. The cost of the "Cleanup" shall be included
as a part of the cost of the various items of work involved, and no direct
compensation will be made for this work.
SC-36 TRENCH SAFETY
The Contractor shall strictly comply with all requirements of the
Occupational Safety and Health Administration (OSHA) Rules and Regulations, Part
1926, Subpart P - EXCAVATIONS, for all trenching and excavation operations.
If depths of trenches are encountered which are over five (5) feet, the
Contractor shall cut the trench walls to the angle of repose of the soils
encountered, or shall submit alternate shoring details to the Owner's
Representative for approval.
SC-37 INDEMNIFICATION
The Contractor shall indemnify and hold harmless and defend the Owner,
Engineer and all their officers, agents and employees from all suits, actions,
claims, damages, personal injuries, losses, property damage and expenses of any
character whatsoever, including attorney's fees, brought for or on account of any
injuries or damages received or sustained by any person or persons or property,
on account of any negligent act of the Contractor, their agents or employees, or
any subcontractor, in the execution, supervision and operations of this contract,
and the Contractor will be required to pay any judgement costs which may be
obtained against the Owner, Engineer or any of their officers, agents or
employees, including attorney's fees.
The Contractor shall indemnify and hold harmless and defend the Owner,
Engineer and all their officers, agents and employees, from all suits, actions,
claims, damages, personal injuries, property damage, losses and expenses of any
character whatsoever, including attorney's fees, brought for or on account of any
injuries or damages received or sustained by any person or persons or property,
on account of any claimed negligent act of the Owner, Engineer or any of their
2752-94 SC - 15
officers, agents and employees, whether such claimed negligent act was the sole
proximate cause of the injury or damage or a proximate cause jointly or
concurrently with the Contractor or the Contractor's employees, agents or
subcontractors negligence, in the execution, supervision and operations growing
ut of or in any way connected with the performance of this contract, and the
Contractor will be required to pay any judgement with cost which may be obtained
against the Owner, Engineer or any of their officers, agents or employees,
including attorney's fees.
The Contractor agrees that he will indemnify and save the Owner and
Engineer harmless from all claims growing out of any demands of subcontractor,
laborers, workmen, mechanics, materialmen, and furnishers of machinery and parts
thereof, equipment, power tools, all supplies, including commissary incurred in
the furtherance of the performance of this contract. When the Owner so desires,
the Contractor shall furnish satisfactory evidence that all obligations of the
nature hereinabove designated have been paid, discharged or waived.
2752-94
SC - 16
F
I
NOTICE OF ACCEPTANCE
TO:
The City of Lubbock, having considered the proposals submitted and opened on the day of
199_, for work to be done and materials to be furnished in and for:
as set forth in detail in the Specifications, Plans, and Contract Documents for such work for the City of Lubbock; it appearing that
your proposal is fair, equitable and to the best interest of said City, please take notice that said proposal was accepted by the City
Council of the City of Lubbock on the day of 199 at the bid price contained therein, subject to the
I execution of and famishingcertificates
rof all contract documents, bonds, of insurance, and all other documents specified and
f required to be executed and furnished and the contract documents. It will be necessary for you to execute and furnish to the City of
Lubbock all such documents within ten (10) days from your receipt of this Notice.
The five percent (S%) bid security, submitted with your proposal, will be returned upon the execution of such contract
documents and bonds within the above specified ten (10) day period In the event you should fail to execute and furnish such
contract documents and bonds within the time limit specified, said bid security will be retained by the City of Lubbock.
CITY OF LUBBOCK
Owner's Representativ