HomeMy WebLinkAboutResolution - 5156 - Contract - Janagin Construction Company - Street Paving, Norbob North Addition - 04_11_1996Resolution No.5156
April 11, 1996
Item #15
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 with Jarnagin Construction
Company of Lubbock, Texas, to furnish and install all materials and services as bid for the
Norbob North Addition street paving, attached hereto and 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 11 th
W101
ATTEST:
Betty M. Johnso , City Secretary
APPROVED AS TO CONTENT:
Victor KilmanLPurchasing Manager
DGV:js/NORBOB.RES
ccdocs/April 1, 1996
1996.
i
RESOLUTION No. 5156 April 11, 1996 7
CITY OF LUBBOCK
INVITATION TO BID
FOR
TITLE: PAVING AVENUE X AT FORDHAM AND
ERSKINE TO GRINNELL STREET
ADDRESS: LUBBOCK, TEXAS
BID NUMBER: 13529
PROJECT NUMBER: 219.3033
CONTRACT PREPARED BY: PURCHASING DEPARTMENT
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INDEX
NOTICE TO BIDDERS
GENERAL. INSTRUCTIONS TO BIDDERS
BID SUBMITTAL - BID FOR LUMP SUM CONTRACTS
PAYMENT BOND
PERFORMANCE BOND
CERTIFICATE OF INSURANCE
CONTRACT
GENERAL CONDITIONS OF THE AGREEMENT
CURRENT WAGE DETERMINATIONS
SPECIFICATIONS
SPECIAL CONDITION
No Text
NOTICE TO BIDDERS
BID #13529
Sealed bids addressed to Victor Kilman, Purchasing Manager, City of Lubbock, Texas, will be received in the office of the
r Purchasing Manager, Municipal Building, 1625 13th Street., Room L-04, Lubbock, Texas, 79401, until 2:00 o'clock n.m. on the
28th day of Mamh,1996, 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:
"PAVING AVENUE X AT FORDHAM AND ERSEINE TO GRINNELL STREET
After the expiration of the time and date above first written, said scaled bids will be opened in the office of the Purchasing
Manager and publicly read aloud.
r"
It is the sole responsibility of the bidder to insure that his bid is actually in the office of the 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 11th day of April.1996, at the Municipal Building, 1625 13th Street,
r 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 in accordance with Chapter 2253, Government
Code, in the amount of 100% of the total contract price in the event that said contract price exceeds $100,000 and the sucoessful
bidder will be required to furnish a payment bond in accordance with Chapter 2253, Government Code, in the amount of 100% of
the total contract price in the event that said contract price exceeds $25,000. Said statutory bonds should be issued by a company
carrying a current Best Ratine of B or superior• as the rating of the bond company is a factor that will be considered in determination
of the lowest responsible bidder.
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 bid 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 done. It shall be understood and agreed that all such factors have been thoroughly investigated and
,.., considered in the preparation of the bid submitted. There will be a pre -bid conference on 21st day of March,1996, at 10:00
o'clock a.m., in the Purchasing Conference Room L-04, Lubbock, Texas
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.
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.
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 City of Lubbock Human Relations Office at (806) 767-2281 at least 48 hours in
advance of the meeting.
CITY OF LUBBOCK
VICTOR KIL
PURCHASING MANAGER
Bid documents may be obtained upon request from the Purchasing Department at 162513th Street,
Room L-04, Lubbock, Texas 79401; Telephone (806)767-2167/Fax (806)767-2164.
PM
Pl*
row
GENERAL INSTRUCTIONS TO BIDDERS
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GENERAL INSTRUCTIONS TO BIDDERS
1. SCOPE OF WORK
The contractor shall fiimish all labor, superintendence, machinery, equipment and all materials necessary to complete this
project in accordance with contract documents for the PAVING AVENUE X AT FORDHAM AND ERSKINE TO
GRINNELL STREET.
2. CONTRACT DOCUMENTS
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. BIDDER INQUIRIES
No bidder shall request any information verbally. All written requests for additional information or clarification concerning
this bid must be addressed to:
RON SHUFFIELD
SENIOR BUYER
CITY OF LUBBOCK
P.O. BOX 2000
LUBBOCK, TX 79457
FAX (806)767-2164
S. 71ME AND ORDER FOR COMPLETION
The construction covered by the contract documents shall be fully completed within 30 (THIRTY) working 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 time specified.
6. PAYMENT
All payments due to Contractor shall be made in accordance with the provisions of the General Conditions of the contract
documents.
7. AFFIDAVITS OF BILLS PAID
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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
r
the contract documents have been paid in full and that there are no claims pending, of which the Contractor has been
notified.
S. 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.
9. 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 furnish 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).
10. 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.
11. 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 intended
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.
12. 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.
13. 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 damag
ed ged 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,
r' at Contractor's expense.
14. 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
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.
15. EXPLOSIVES
The use of explosives will not be permitted unless written permission to do so is obtained by the Contractor from the City.
r" In all cases where written permission is obtained for the use of explosives, the Contractor shall assume frill 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 life or property and the Contractor shall
r- further use only such methods as are currently utilized by persons, firms, or corporations engaged in similar type of
construction activity.
Explosive materials shall not be stored or kept at the construction site by the Contractor.
In all rases 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
r" 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.
16. 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.
17. INSURANCE
The Contractor shall not commence work under this contract until he has obtained all insurance as required in the General
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
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.
18. LABOR AND WORKING HOURS
j" 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 is 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 arty 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.
(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 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 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.
19. PAYMENT 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 prevailing 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.
20. PROVISIONS CONCERNING ESCALATION CLAUSES
Bids 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.
21. PREPARATION FOR BID
The bidder shall submit his bid on forms furnished 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 intends 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 bid is
submitted by an individual, his name must be signed by him or his duly authorized agent. If a bid is submitted by a firm,
association, or partnership, the name and address of each member must be given and the bid signed by a member of the
firm, association or partnership, or person duly authorized. If the bid is submitted by a company or corporation, the `
company or corporate name and business address must be given, and the bid signed by an official or duly authorized agent.
Powers of attorney authorizing agents or others to sign bids must be properly certified and must be in writing and submitted
with the bid. The bid shall be executed in ink.
Each bid 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) Bid for (description of the project).
Bid submittals may be withdrawn and resubmitted at any time prior to the time set for opening of the bids, but no bid may
be withdrawn or altered thereafter.
22: 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 Submittal.
(d) Statutory Bond (if required).
(e) Contract Agreement.
(f) General Conditions.
(p) 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.
I
7
I
BID SUBMITTAL
UNIT PRICE BID CONTRACT
ri
PLACE: Lubbock Texas
DATE: March 28, 1996
PROJECT NUMBER: 13529 - PAVING AVENUE X AT FORDBAM AND ERSKI NE TO GRINNELL STREET
Bid of Jarriagin Construct ion Co. (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 for bids for the construction of a Street - Ave X at
Fordham and Erskine to Grinnell St
having carefully examined the plans, specifications, instructions to bidders, notice to bidders and all other related contract
documents and the site of the intended work, and being familiar with all of the conditions surrounding the construction of the
intended project including the availability of materials and labor, hereby intends to furnish all labor, materials, and supplies; and t
construct the project in accordance with the plans, specifications and contract documents, within the time set forth therein and at t
price stated in Exhibit "A".
The bidder binds himself on acceptance of his bid to execute a contract and any required bonds, according to the
accompanying forms, for performing and completing the said work within the time stated and for the prices stated in Exhibit "A"
this bid.
Bidder hereby agrees to commence the work on the above project on or before a date to be specified in a written "Notice b
Proceed" of the Owner and to fully complete the project within 30 working days thereafter as stipulated in the specifications and
other contract documents. Bidder hereby further agrees to pay to Owner as liquidated damages the sum of $250.00 (TWO
j HUNDRED FIFTY DOLLARS) PER DAY for each working day in excess of the time set forth hereinabove for completion of t1
project, all as more fully set forth in the general conditions of the contract documents.
Bidder understands and agrees that this bid submittal shall be completed and submitted in accordance with instruction
number 21 of the General Instructions to Bidders.
Bidder understands that the Owner reserves the right to reject any or all bids and to waive any formality in the bidding.
The Bidder agrees that this bid shall be good and may not bewithdrawn for a period of thirty (30) calendar days after the
scheduled closing time for receiving bids.
The undersigned Bidder hereby declares that he has visited the site of the work and has carefully examined the plans,
specifications and contract documents pertaining to the work covered by this bid, and he further agrees to commence work on or
before the date specified in the written notice to proceed, and to substantially complete the work on which he has bid; as provided
the contract documents.
IBidders are r whether or not a payment or performance bond is required, paym pe required, to submit a cashier's check or certified
F1 check issued by a bank satisfactory to the City of Lubbock, or a bid bond from a reliable surety company, payable without recourse
the order of the City of Lubbock in an amount not less than five percent (5% ) of the total amount of the bid submitted as a
guarantee that bidder will enter into a contact and execute all necessary bonds (if required) within ten (10) days after notice of
award of the contract to him.
Enclosed with this bid is a Cashier's Check or Certified Check for N / A Dollars
(S ) or a Bid Bond in the stun of 5 % of bid Dollars ($ ), which it is
agreed shall be collected and retained by the Owner as liquidated damages in the event the bid is accepted by the Owner and the
undersigned fails to execute the necessary contract documents and the required bond (if any) with the Owner within ten (10) days
after the date of receipt of written notification of acceptance of said bid; 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 documen
made available to him for his inspection in accordance with the Notice to Bidders.
Authorized Si e
Larry Ja agin
(Printed or Typed Name)
Jarnagin Construction Co
Company
PO Box 98128
Address
Lubbock Lubbock
P" City, County
Texas 79499
State Zip Code
Telephone: (8 0 6) 74 7- 0 8 2 8
Fax Number: 8( 0 6) 8 3 2 - 4519
(Seal if Bidder is a Corporation)
t ATTEST:
Secretary
BID SUBMITTAL
r., BID 913529
PAVING AVENUE X AT FORDHAM AND
i ERSKINE TO GRINNELL STREET
Estimated
Total
Item Quantities
Unit
Amount
No. & Units Description of Items
Price
Bid
1
1. 40 Remove, legal disposal and replace existing 30" curb
t[
LF and gutter, including site clearance, subgrade perparation,
reinforcement, jointing and street repair, complete in place
�^
li
as shown and as specified, per linear foot:
SERVICES: Thirteen Dollars and Twenty -Five Cents
( $13.25
) ( $530.00 )
MATERIALS: Six Dollars and Twenty Cents
( $6.20
) ( $248.00 )
TOTAL: Nineteen Dollars and Forty -Five Cents
( $19.45
) ( $778.00 )
2. 1.750 24" concrete curb and gutter or separate gutter, including site
Lf clearance, subgrade preparation, reinforcement and jointing,
complete in place, as shown and as specified, per linear foot:
SERVICES: Five Dollars
( $5.00
) ( $8,750.00 )
MATERIALS: Three Dollars and Forty -Five Cents
( $3.45
) ( $6,037.50 )
TOTAL: Eight Dollars and Forty -Five Cents
( $8.45
) ( $14,787.50 )
3. 120 6" concrete fillets and valley gutters, including all
SY subgrade preparation, reinforcement and jointing, complete
in place, as shown and specified, per square yard:
SERVICES: Twelve Dollars and Thirty Cents
( $12.30
) ( $1,476.00 )
MATERIALS: Fourteen Dollars and Sixty Cents
( $14.60
) ( $1,752.00 )
TOTAL: Twenty Six Dollars and Ninety Cents
( $26.90
) ( $3,228.00 )
4. 4.100 Type C Hot -Mix Asphaltic Concrete pavement, including 3%
SY latex polymer (SBR) and 1% hydrated lime, 1 1/2" minimum
compacted thickness, including all subgrade preparation, 6"
compacted caliche base from curb to curb and 2 feet beyond the
raw asphalt edge, including site clearance, subgrade preparation,
ditching, prime and tack coats, and dilute emulsion treatment,
complete in place, as shown and as specified, per squar yard
of HMAC:
r
SERVICES: Three Dollars and Fifty Cents
( $3.50
) ( $14,350.00 )
MATERIALS: Five Dollars and Forty -Five Cents
( $5.45
) ( $22,345.00 )
TOTAL: Eight Dollars and Ninety -Five Cents
( $8.95
) ( $36,695.00 )
7,
Bid Submittal- Paving Avenue X at Fordham and Erskine
Page 2
Estimated Total
Item Quantities Unit Amount
No. & Units Description of Items Price Bid
5. 15 4" concrete slab as sidewalk, handicap ramp or other, complete
SY in place, as shown and as specified, per square yard:
SERVICES: Fifteen Dollars and Seventy -Five Cents ( $15.75 ) ( $236.25 )
MATERIALS: Ten Dollars and Sixty -Five Cents ( $10.65 ) ( $159.75 )
TOTAL: Twenty Six Dollars and Forty Cents ( $26.40 ) ( $396.00 )
TOTAL SERVICES $25,342.25
OTAL MATERIALS: $30,542.25
D ( Items 1 through 5) $55,884.50
Au r S ign e
Larry Jarnagin, Owner
(Printed/Typed Name)
fry:
Ar
FT
givc
r
IN
and
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me:
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F1
COMMERCIAL INDEMNITY
Insurance Company
BID BOND
BOND NUMBER BD28153
KNOW ALL MEN BY THESE PRESENTS:
THAT JAR -CON JARNAGIN CONSTRUCTION CO., P.O. BOX 98128, LUBBOCK,
TEXAS 79499 as Principal, and COMMERCIAL INDEMNITY INSURANCE COMPANY, as
Surety, are held and firmly bound unto CITY OF LUBBOCK as Obligee, in the full and just sum of
FIVE PERCENT (5%) OF THE AMOUNT BID lawful money of the United States, for the payment
of which sum well and truly to be made, we bind ourselves, our heirs, administrators, executors,
successors and assigns, jointly and severally, firmly by these presents.
WHEREAS, the Principal is hereby submitting its proposal for PAVING AVE. X AT
FORDHAM AVE. & ERSKINE ST. TO GRINNELL ST.
NOW, THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if the
aforesaid 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 MARCH 26. 1996.
JAR -CON JARNAGIN CONSTRUCTION CO.
PRINCIPAL
By((SEAL)
CF
NDEMNI INS N E COMPANY
B_ (SEAL)
R, ATTORNEYaN FACT
7
11
COMMERCIAL INDEMNITY
Insurance Compa"
(formerly Commercial Lloyd's Insurance Company)
IMPORTANT NOTICE
To obtain information or make a complaint:
You may contact John Schuler, President of Operations, whose direct dial
number is 612-444-7776. You may also fax us information at 512-440-0989.
You may also call Commercial Indemnity Insurance Company's toll -free
I" telephone number for information or to make a complaint at:
1-800-234-8046
You may also write to Commercial Indemnity Insurance Company: 1507 South
I1-1-35, Austin, Texas 78741.
You may contact the Texas Department of Insurance to obtain information on
companies, coverages, rights or complaints at:
1-800-262-3439
You may also write the Texas Department of Insurance: P.O. Box 149104,
Austin, Texas 78714-9104, Fax 512-475-1771.
PREMIUM OR CLAIM DISPUTES: Should you have a dispute concerning your
premium or about a claim you should contact the company first. If the dispute is
not resolved you may contact the Texas Department of Insurance.
ATTACH THIS NOTICE TO YOUR POLICY: This notice is for information only
and does not become a part of condition of the attached document.
7
t
LIST OF SUBCONTRACTORS
Minority Owned
Yes No
1.
❑ ❑
2.
0 ❑
3.
❑ ❑
4.
❑ ❑
5.
0 ❑
6.
❑ ❑
7.
❑ ❑
8.
0 ❑
9.
❑ ❑
10.
0 0
PAYMENT BOND
BOND CHECK
BEST RATING
LICENSED IN TEXAS
DATE _
;boo
�o ace
STATUTORY PAYMENT BOND PURSUANT TO SECTION 2253.021(a)
OF THE TEXAS GOVERNMENT CODE
(CONTRACTS MORE THAN $25,000) BOND NO. BD 28289
KNOW ALL MEN BY THESE PRESENTS, that JARNAGIN CONSTRUCTION CC TA- Wreinafter called the Principal(s), as
Principal(s), and
COMMERCIAL INDEMNITY INSURANCE COMPANY
(hereinafter called the S sim
s) ld firmly bound unto the City of Lubbock (hereinafter called the Obligee), in
the amount of FIFTY F� .� i D= (S55 , 884.50) 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 _1THday of
APRIL 519 96•to NORBOB NORTH ADDITION S"IREEI' PAVING. BID # 13529,
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, TTMREFORE, 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 frill force and effect;
PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Section 2253.021(a) of the Texas
Government Code, 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 instnunent this 24TH day of
APRIL 19 96.
CQMMERCIAL INDEMNITY INSURANCE COMPANY JARNAGIN CONSTRUCTION COMPANY
Surety Principal
l
*By_ Bar
i ) JOHIv w. scHv1',ER, 01@6�
-ATTORNEY—IN—FACT
B
y.
(Title)
By:
(Title)
r
r
r
The undersigned surety company represents that it is duly qualified to do business in Texas, and hereby designates
.•• DUB GOODWIN an agent resident in Lubbock County to whom any requisite notices may be delivered and on whom service
of process may be had in matters arising out of such suretyship.
CMERCIAL INDEMNITY INSURANCE 'COMPANY
I Surety
l By:
VA
ttl) JOI- K N-. - SCHULER
Mt RNEY—IN-FACT
Approved as to form:
City of Lubbock C-
i ttorncy ✓ _
• 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 files.
i
r
r
Commer•',al Indemnity Insurance Company BD
OMMERC
P.o`Box6i IAL 28289
Austin, Texas 78767 DEMNITY INSURANCE CQ. POWER OF ATTORNEY
7
` KNOW ALL MEN BY THESE PRESENTS:
That the Commercial Indemnity Insurance Company, a Corporation duly organized and existing tinder the laws of the State of Texas, having
its principal office in Austin, Texas, purstiant to the following resolution, adopted by the Board of Directors of the said Company on the 12th
day of May, 1994, to wit
' Resolved, that any officer of the Company shall have authority to make, execute and deliver a Power of Attorney constituting as Attorney -
In -Fact, such persons, firms, or corporations as may be selected from time to time.
Be It Further Resolved, that the signature of any officer and the Seal of the Company may be affixed to any such Power of Attorney or any
certificate relating thereto by facsimile, and any such Power of Attorney or certificate bearing such facsimile signature or facsimile seal shall
be valid and binding upon the Company and any such powers so executed and certified by facsimile signature or facsimile seal shall be valid
and binding upon the Company in the future with respect to any bond or undertaking to which it is attached." Commercial Indemnity Insurance
Company does hereby make, constitute and appoint:
JOHN W SCHULER OR PAUL CAMERON
Stateof Texas its true and lawful attorneys) -in -fact, with full power and authority hereby conferred in its name, place and stead, to sign, execute,
r-, acknowledge and deliver in its behalf, and its act and deed, as follows:
The obligation of the Company shall not exceed one million ($1,000,000.00) Dollars.
L And to bind Commercial Indemnity Insurance Company thereby as fully and to the same extent as if such bond or undertaking was signed by
l the duly authorizedofficerof the Commercial Indemnity Insurance Company, and all the acts of said Attorney(s) pursuant to the authority herein
given, are hereby ratified and confirmed.
IN WITNESS WHEREOF, the Commercial Indemnity Insurance Company has caused these presents to be signed by any officer ofthe Company
and its Corporate Seal to be hereto affixed.
i r
7 SEAL John W. Schuler, President
. t
7State of Texas
County of Travis •
On this 12th day of May, in the year 1994, before me Ann Bennett, a notary public, personally appeared John W. Schuler, personally known
to me to be the person who executed the within instrument as President, on behalf of the Corporation therein named and acknowledged to
FLhat the Corporation executed it. p" as suvNerr- -
MOTAltr nrela
J,+ o�li.°s.Ta sir
Fommission Expires 8-6-97 Ann Bennett, Notary Public
r-CERTIFICATE _ -
i !, the undersigned, Secretary of Commercial Indemnity Insurance Company, DO HEREBY CERTIFY that the foregoing and attached Power
f Attorney and Certificate of Authorityar mains in full force and has not been revoked:
Signed and Sealed at the said Company at Austin, Texas dated this 24TH day of APRIL ,19 96
. _ SEAL s a��
' Paul Cameron, Secretary
L ��
r•
rift COMMERCIAL INDEMNIFY
Insurance Company
(formerly Commercial Lloyd's Insurance Company)
IMPORTANT NOTICE
To obtain information or make a complaint:
You may contact John Schuler, President of Operations, whose direct dial
number is 512-444-7776. You may also fax us information at 512-440-
0989.
You may also call Commercial Indemnity Insurance Company's toll -free
telephone number for information or to make a complaint at:
1-800-234-8046
You may also write to Commercial Indemnity Insurance Company : 1507
South IH-35, Austin, Texas 78741.
You may contact the Texas Department of Insurance to obtain information
on companies, coverages, rights or complaints at:
1-800-252-3439
You may also write the Texas Department of Insurance: P.O. Box 149104,
'" Austin, Texas 78714-9104, Fax # 512-475-1771.
PREMIUM OR CLAIM DISPUTES: Should you have a dispute concerning your
premium or about a claim you should contact the company first. If the
dispute is not resolved you may contact the Texas Department of Insurance.
ATTACH THIS NOTICE TO YOUR POLICY: This notice is for information
only and does not become a part of condition of the attached document.
71,
o
as
0
a
i
r
F
STATUTORY PERFORMANCE BOND PURSUANT TO SECTION 2253.021(a)
OF THE TEXAS GOVERNMENT CODE
(CONTRACTS MORE THAN $ 100,000)
KNOW ALL MEN BY THESE PRESENTS, that (hereinafter called the Principal(s), as Principal(s), and
(hereinafter called the Surety(s), as Surety(s), are held and firmly bound unto the City of Lubbock (hereinafter called the Obligee), in
the amount of Dollars ($ ) 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 day of
19_, to
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 Section 2253.021(a) of the Texas
Government Code, 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
,19
Surety
r�
i
* By:
(Title)
F
Principal
By:
(Title)
By:
(Title)
By:
(Title)
F
The undersigned surety company represents that it is duly qualified to do business in Texas, and hereby designates
an agent resident in Lubbock County to whom any requisite notices may be delivered and on whom service of
process may be had in matters arising out of such suretyship.
Surety
*By:
(Title)
Approved as to Form
City of Lubbock
By:
City Attorney
* 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 files.
AE
04/30/1996 11:22 806-7840188
.CERTIFICA�"� �l
�PROOUCEA EMPLOYERS GENERAL INSURANCE GROUP, aINC.
KINGSGATE CENTER OFFICE BLDG
4010 B2ND STREET, SUITE 240
LUBBOCK TX 79423
INSURED JARNAGIN CONSTRUCTION COMPANY
P. 0. BOX 98128
LUBBOCK TX 79499
GaYRES ., .?.#4ift w ��'XRe�owii..w'^t^/AxM�?roa.wRx:�.�13`6i' WMt�;'
EMP 'GEN INS-LUBBOCK PAGE 01
>. ? OATL IMMR)IM
;.
THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION
ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE
HOLDER. THIS CERTIFICATE DOES NOT AMEND, EXTEND OR
ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW.
COMPANIES AFFORDINQ COVERAGE
COWAW
OLO REPUBLIC INSURANCE COMPANY
A
COf+fPANY
OLD REPUBLIC LLOYDS OF TEXAS
B
COWAW
C
a
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE W8URED NAMED ABOVE FOR THE POLICY PERIOD
INDICATED, NOTWITHSTANDING ANY REOUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS
CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE MURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN Is SUBJECT TO ALL THE TERMS,
EXCLUSIONS AND CONOITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAI MS.
LT�R TYPE OF WSURAHct POUCY" mm DA r� V)
B OLNERAL L ABAM
7 am m MADE QX o=jR *TOP-4462463- ` 1 /02/96 1 /02/97
OWNEFCO iCONTRACTO" PROT
r j A � AUTOMOWLE LtA UJTY
ANYAUM
X ALLCWNBD ALR17l4
fIC RULED ALITO@ *BAA-14626&1 1 /02/96 1 /02/97
X hW�A AUTOQ
X NON-0ffitM AUTOS
AW AM
ElfCASs LIASft1TY
—
A WYORUM COMPIMATION AND
empLOTERS, MAILITY WC-1462660 1 /02196 1 /02/97
_ 7 AM
A• -OWNERS & CONTRACTOR
PROTECTIVE **OCF-1462893 08-16-95 01-02-96
I
LAM
OCNERALAL;'OAEOATE
t
2.000,000
PRg01=1 • COMAP415 AM
8
2,000,000
PIUMO AL ■ ADY I AW
11
11000, 000
EACH 00m"!& F
t
1,000.000
I = CAMA06 Vuy aft nrej
t
50,000
mim w vig am
:
5,000
fX>f O?=1144GLE UAIIT
t
1,040,000
90my INJURY
t
t
PROPMN ONAbGE
1
AUTO ONLY • EA A=DENT
t
OTHER THAN AUM ONLY:
EJICH ACCJOEW
I
AOOAHCIATE
S
EACH OCCL
t
AGGFgMTE
S
X I6TATVMW UMRB
CACH ACtVS4T
I
500,000
OSEASE - FCUcY LUT
I
SOD, 000
WMASE•EA04 EINPLOYM
1
500,000
AGGREGATE LIMIT
$300,000
EACH OCCURRENCE
$300;000
N ANT
"ALU11'1UNAL LNSU4ty LN EAVOR Ur THE CERTIFICATE HOLDER IF THERE IS A %ITT.Etit fff7RACT BETWEEN
r Job Ref: Paving Avenue X at Fordham and Erskine to Grinnell Street. d 913
THE ABOVE INSURED AND THE CERTIFICATE HOLDER REQUIRING THE ABOVE.
Wr
� 2
>.Z <.t
.:.'. ,,, `.,!'�J'.'�',�F. :. �ww i�{a'tJCa� .. �".�aa`tJ� Y.d4.o�^^�.Hi .. ,.d,., 9, ; , .e <«,v. . •"�'.. ..' .'ibp/,
S"OUW A1fY Of 7HE ASM 011101150 POLICIES R! CANCE1110 ■EFORE VNE
WWrON DATE nUMOF, TM! "VINa COMPAW WILL INDMAYOR TO MAIL
CITY OF LUBBOCK _jQ DAYS W MI1 N NOTICE TO THR C0TVICAT11 HOLDER RAM[a TO THE LEFT:
P.O. BOX 2000 Sur PAUSE To MAIL SUCH MOrct SHALL NMW NO OdUGATMW OR LWlUTT
! LUBBOCK, TX 79457 Of AVKM UPON THE COWAX04 AOEM OR REPR00ITATAfM
AUTl _ A S
�:` .•:::;. :. ::: ... .: ':�:>�>:>'>`? DATE (MGA/DD�Y�
a/,tD T �::.1C�S. R1�N
I.1.:.:G.:.::.:.:...:...:....:....::...:...::::.:.:::::::.
P,,.
.��R7�Ft� .:::} .:::.:::::...:::.:::;L:.}::;::.}:.:}:i.:}.}:}:.:{:}::;;::.:::}:.::::::::{.:{.}:?::}:.;}}
L::.::.?:..::.:..:.:.. 4/26/96
PRODUCER EMPLOYERS GENERAL INSURANCE GROUP, INC. THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION
KINGSGATE CENTER OFFICE BLDG ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE
HOLDER. THIS CERTIFICATE DOES NOT AMEND, EXTEND OR
4010 82ND STREET, SUITE 240 ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW.
LUBBOCK TX 79423 COMPANIES AFFORDING COVERAGE
COMPANY OLD REPUBLIC INSURANCE COMPANY
A
INSURED JARNAGIN CONSTRUCTION COMPANY COMPANY OLD REPUBLIC LLOYDS OF TEXAS
P. 0. BOX 98128 B
"
LUBBOCK TX 79499 COMPANY
C
COMPANY
D
., v:::::........:. �::::: • :v::::: :v....nr. ....... .. .:...:.: •:{4:.u:!�:-:::. $.. r........ rf... ...... .. $......... n... ..... F............•...^.......... ........... .. }?:L.}i: i}:?• }}:}}}i:-} ^i:•}:}}}ii}; }•r.
.... v.....:... r....:............... n... ;...:..; ......: v-- ..\.::: ::?.?v:::::.�nv.�;:::::: �.�nw::::.�:.w:::::; �.; 1.:: }:::: •.v:nw:::: +... ... ........ .. ... .. ......................................... .. ...
I TC CERTIFY THAT' HE POLICIES OF INSURANCE LISTED BELOW HAVE ::...•:N I•::::.UET .
THIS IS O CE THE L L BEEN ISSUED TO THE INSURED NAMED ABOVE •FOR THE POLICY PERIOD••'••
INDICATED, NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS
CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS,
EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
CO
B
TYPE OF INSURANCE
GENERAL LIABILITY
POLICY NUMBER
POLICY EFFECTIVE
DATE (MMIDDAYY)
POLICY EXPIRATION
DATE (MWYY) DD/
LIMITS
GENERAL AGGREGATE $ 2,000,000
PRODUCTS - COMP/OP AGO
s 2,000,000
X COMMERCIAL GENERAL LIABILITY
CLAIMS MADE ❑X OCCUR
TCP-4462463•
1 /02/96
1 /02/97
PERSONAL S ADV INJURY
S 1,000,000
EACH OCCURRENCE
$ 1,000,000
i
OWNERS A CONTRACTOR'S PROT
FIRE DAMAGE (Any one fire)
S 50,000
"
MED E)(P (Any one person)
S 5,000
A
AUTOMOBILE
LIABILITY YAUTO
COMBINED SINGLE LIMIT
$ 1,000,000
X
BODILY INJURY
(Per person)
$
ALL OWNED AUTOS
SCHEDULED AUTOS
HIRED AUTOS
NON-OWNEO AUTOS
SAA-1462661
1/02/96
1/02/97
X
BODILY INJURY
(Per acciderM
:
X
PROPERTY DAMAGE
S
GARAGE LIABILITY
AUTO ONLY - EA ACCIDENT
S
OTHER THAN AUTO ONLY:
ANY AUTO
r
EACH ACCIDENT
AGGREGATE
S
I
EXCESS LIABILITY
EACH OCCURRENCE
S
AGGREGATE
S
sr
UMBRELLA FORM
s
OTHER THAN UMBRELLA FORM
A
WORKERS COMPENSATION AND
X I STATUTORY LIMBS
EMPLOYERS' LIABILITY
THE PROPRIETOR/ INCL.
PARTNERSIEXECUTNE
RX
FTC-1462660
1 /02/96
1 /02/97
EACH ACCIDENT
s;: 500,000.
DtS EASE - POLICY LIMIT
$ 500,000
DISEASE - EACH EMPLOYEE
S 500,000
OFFICERS ARE: E XCL
OTHER
DESCRIPTION OF OPERATIONSXOCATIONS/VEHICLESISPECUU. ITEMS
F
Job Ref: Paving Avenue X at Fordham and Erskine to Grinnell Street, Bid #13529.
y_ ...i . % F• } f Y ii:4}}}Y•}'•y;4� ;•Y:•}}: } •
r ^::�:'i::i vii:•l•: ��l•��p A 4 :j::Y •
'� }j^ �•�+i}i:4r.....n....:.+i.':•.•}:•}}iY. `:;•:�}:•}:: •nx:{•Yr } L F}i H } :: SS $. ;• } . :C:�:vvx •.v$::.
'v x� f F ;•}
.if Y!11'.4 : �A!FrIF:FMSt
SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE
EXPIRATION DATE THEREOF, THE ISSUING COMPANY WILL ENDEAVOR TO MAIL
F+ CITY OF LUBBOCK 10 DAYS WRITTEN NOTICE TO THE CERTIFICATE HOLDER NAMED TO THE LEFT,
P.O. BOX 2000 BUT FAILURE TO MAIL SUCH NOTICE SHALL IMPOSE NO OBLIGATION OR LIABILITY
" LUBBOCK, 7X 79457 OF KIND UPON THE COMPA
IM04 AGENTS OR REPRESENTATIVES-
AUTH PR NTA .
..:.:.. ....... .:: ..:... r.......: •..:. r::•r: r. f.•....O. f+{?......4.+fiY:........:C••:•}}:•..........f 1.........h:{:r r;::.:: f•;;•�.y f• w...,}'i: .... f.?{•}:^....:: ..:...... f ::Y-.:.;.+...•... :. .; .}Y.•:::.
`!I ;. �.. .: �' :�:.•:.+i:{i}}}::•}:ti:;{rr.: ii:• : -:: �.}:•$Y:}}}rJP:.•9^�+..l J..{.'fv'r:{v. .:..::Y;:iv.•.ry .... �.:�
::::::;L:-:}:•}:•};}}??:•}:•:.;. /.::•:; •::: }..-:: a...•..•:.:�:...+:.;:.:::+•:....£::: f::.:.. � :.,.,,, .,.,}:.:: y. :: : '' ... �+,.Y,�V.[.�[llii:4d �y�LFp'�.;:�.�;j�.�.(<�:$
:::...:..:.........:..!,...:..........:....•r:}:::::a•.<:v}•:xiio.:;•:.....o..�.....................:.:.........:. }.... hI[L... if....#y�..A.::... i.�..!�1... ...!1... ...5�!i...:�/�F......,
04/29/1996 14:31 906-7940199
04/29/96 11:48 FAX
EMP GEN INS-LUBBOCK PAGE 01
+yy UAV lU bTk1e5nLtr i W1 UUe.• mw
CM OF LUBBOCM
INSURANCZ IIEQYJIIi NEENT AFFIDAVIT
To Be CotWleGad by AmaAr!aW bman m AgtoYBmbr
Pit to Award of Contrast
1, the aadcrzzpo i AgeatMrdkw. certify the 1=ta= requi vmsz is contained is this bid docat wm havoc berm mmowed
by use with tha below €dent a Contractor. ? Tithe below idanttied Coutmotm is as uded this contract by the City of
Lubbock. t will be able to, wiUm tmm (10) dAys after being notified of such award by contractor, furnish a valid iasu mace
certificate to the City meeting all of the =quir=ents deEmad is this bidlpmposal.
DAVID SMBLEFIELD
Ageat (Print) —
Nam* ofAgcWBr61= EMPLOYERS GENERAL INSURANCE GROUP
Address ofA caLOBrolkor. 4010 82ND STREET #240
CityJState/Zip: L1UBBOCK. TEXAS 79423 _
AgeWBroker Te4epbonc *: ( 806 ) 784-0181
Date: Oh —2 9-9 6
CONTRACTOR'S NAME: LARRY JARNAGIN CONSTRUCTION COMPA,xdiC/JAR—CON
(Prism or Type ) —
CONTRACTOR'S ADDRESS: P. 0. IM 98128
LUBBOCR, TEXAS 79499
NOTE TO AGENTIBROKER
If t1,b time requirement b not met. aw City bas the fright to reject this bid/proposal and award the contract to
anothtr contractor. Ifyou have s!' goudm t onmT iag these requirements, please contact the Purchssint
Manager for t5e 2!Z of Lubbock at (ei>Oi y67-216&
r 15I9 013S29 -PAVING AVENUE X AT FORDHAM AND ERSKME TO GRININELL STREET
r
04/29/96 14:32 TX/RX N0.0997 P.001
S
05/06/1996 09:49 806-7840188
i
I! A
II
Or
�*
EMPLOYERS GENERAL
Insurance Group, Inc.
King9gate Center Office Building
4010 82nd Street, Suite 240
Lubbock, Texas 79423
*"
(806) 784-0181
P
Fox, (606) 784.0188
ri
s
E
May 6, 1996
r
t.
EMP GEN INS-LUBBOCK
David Stubblefleld
Market rig Executive
City of Lubbock
Attn: Mr. Scott Snider
r Re: Jarnagin Construction Company
Mr. Snider:
r I am not aware of any pending liability claims aginst
Jarnagin Construction Company. Please advise if I can
be of further assistance.
David Stubblefield
k
k
'1
PAGE 01
F
L,
CONTRACTOR CHECKLIST
A CONTRACTOR SHALL:
(1) 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;
(2) provide a certificate of coverage showing workers' compensation coverage to the governmental entity prior to
beginning work on the project;
(3) 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;
(4) obtain from each person providing services on a 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;
(5) retain all required certificates of coverage on file for the duration of the project and for one year thereafter,
(6) 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 arty person
providing services on the project;
(7) post a notice on each project site informing all persons providing services on the project that they are required to be
7 covered, and stating how a person may verify current coverage and report failure to provide coverage. This notice
I 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:
4
F"
6I '
r
REQUIRED WORKERS' COMPENSATION COVERAGE
r, "The law requires that each person working on this site or providing services related to this construction project must (see reverse) be
covered by workers' compensation insurance. This includes persons providing, hauling, or delivering equipment and materials, or
providing labor or transportation or other service related to the project, regardless of the identity of their employer or status as an
employee."
7
"Call the Texas Workers' Compensation Commission at S IV440- 3789 to receive information on the legal requirement for
coverage, to verify whether your employer has provided the required coverage, or to report an employer's failure to
provide coverage." and
(8) contractually require each person with whom it contracts to provide services on a project, to:
(A) provide coverage based on proper reporting of classification codes and payroll amounts and Sling of any
coverage agreements for all of its employees providing services on the project, for the duration of the
project;
(B) provide a certificate of coverage to the contractor prior to that person beginning work on the project;
(C) include in all contracts to provide services on the project the language in subsection (e) (3) of this rule;
(D) 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;
(E) obtain from each other person with whom it contracts, and provide to the contractor.
(i) a certificate of coverage, prior to the other person beginning work on the project; and
(ii) 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;
(F) retain all required certificates of coverage on file for the duration of the project and for one year
thereafter,
(G) 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
(l) 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. ❑
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CONTRACT
STATE OF TEXAS
COUNTY OF LUBBOCK
THIS AGREEMENT, made and entered into this 11th day of Aaril,1996, 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 JARNAGIN CONSTRUCTION COMPANY of the City of Lubbock. County of Lubbock, and the State of Texa%
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 # 13529 - NORBOB NORTH ADDITION STREET PAVING - S55,884.50
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 bid
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.
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Owner's Representative
�RdVED T� FOR vi'ii
itrAttorney
ATTEST:
Corporate Secretary
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JARNAGINkON7 COMPANY
By
PRINTED NAME:
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TITLE: ��i✓E °�
COMPLETE ADDRESS:
Jarnagin Construction Company
P.O. Box 98128
Lubbock, Texas 79423
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GENERAL CONDITIONS OF THE AGREEMENT
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1. OWNER
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.
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: JARNAGIN CONSTRUMION COMPANY, who
has agreed to perform the work embraced in this contract, or to his or their legal representative.
3. OWNER'S REPRESENTATIVE
Whenever the word Owner's Representative or representative is used in this contract, it shall be understood as referring to,
City of Lubbock, under whose supervision these contract documents, including plans and specifications, were prepared, and
LARRY HERTEL, CITY ENGINEER 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, Bid, 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,' "Required," •Considered Necessary,' "Prescribed," or words of
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.
7. WRITTEN NOTICE
Written notice shall be deemed to have been duly served if delivered in person to the individual or to a member of the 5rm
or to an officer 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.
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8. WORK
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.
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 m 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 m
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.
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14. OWNER'S REPRESENTATIVE'S 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
r, 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
r" said Contractor. The Owner's Representatives' estimates and findings shall be conditions precedent to the right to any
action on the contract, and to any rights of the Contractor to receive any money under this contract.
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.
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
such 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
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 enginexrs, 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.
16. CONTRACTOR'S DUTY AND SUPERINTENDENCE
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
rrisk in connection therewith shall be borne by the Contractor.
4 The Owner or Owner's Representatives will not be responsible for the acts or omissions of the Contractor, or any
subcontractors, or arty of his agents or employees, or any other persons performing any of the work
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.
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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, are, 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 in 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 in 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.
If any work which is required to be inspected, tested, or approved is covered up without written approval or consent of the
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 site 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 contract. It is further agreed that any remedial action contemplated as hereinabove 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 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. If they increase 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 shall 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
y 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 bid, 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 vN ritten 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%) percent.
,r 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 Workers' 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
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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 1001/o, 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
thereof, 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 bid, 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 bid 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.
27. PROTECTION AGAINST ACCIDENT TO EMPLOYEES AND THE PUBLIC
The Contractor shall take out and procure a policy or policies of Workers' Compensation Insurance with an insurance
company licensed to transact business in the State of Texas, which policy shall comply with the Workers' 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 n g 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
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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.
PM 28. CONTRACTOR'S INSURANCE
The Contractor shall not commence work under this contract until he has obtained all insurance as required in the General
Conditions of the contract documents, from an underwriter authorized to do business in the State of Texas and satisfactory
to the City. Proof of overage 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
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.
The Contractor shall procure and carry at his sole cost and expense through the life of this 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 $30-0 000 Combined Single
Limit in the aggregate and per occurrence to include:
Premises and Operations
Explosion & Collapse Hazard
Underground Damage Hazard
Products & Completed Operations Hazard
a Contractual Liability
Independent Contractors Coverage
Personal Injury
Advertising Injury
B. Owner's Protective or Contingent Public Liability Insurance and Property Damage Liability Insurance.
For bodily injuries, including accidental death and or property damage, $300.000 Combined Single Limit. This
policy shall be submitted prior to contract execution
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C. Comprehensive Automobile Liability Insurance
The Contractor shall have Comprehensive Automobile Liability Insurance with limits of not less than;
Bodily Injury/Property Damage, $250.000 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 00/" of the total contract price (10(% 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 $500.000 on all contracts with coverage
to correspond with Comprehensive General Liability and Comprehensive Automobile Liability coverages.
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 $500,000.
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 (TWCC-81, TWCC-82, TWCC-83, or TWCC-
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 food/beverage 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.
3. The Contractor must provide a certificate of coverage to the governmental entity prior to being awarded
the contract.
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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 overage
with the governmental entity showing that coverage has been extended.
S. 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 overage showing
extension of overage, if the coverage period shown on the current certificate of overage ends
during the duration of the project.
6 The contractor shall retain all required certificates of overage 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 overage 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 overage and report lack of coverage.
The contractor shall contractually require each person with whom it contracts to provide services on the
project, to:
(a) provide overage, 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 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 overage is being provided for all employees of the person providing
services on the project, for the duration of the project;
(c) provide the contractor, prior to the end of the overage period, a new certificate of coverage
showing extension of overage, 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 overage, prior to the end of the
coverage period, if the coverage period shown on the current certificate of overage 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 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 worker'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 false 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 bome 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.
(7) 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.
(8) If policy limits are paid, new policy must be secured for new coverage to complete project.
(9) A Contractor shall:
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(a) provide coverage for its employees providing services on a project, for the duration of the project
r based on proper reporting of classification codes and payroll amounts and filling of any coverage
agreements;
(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;
r.. (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 certificates 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' COMPENSATION COVERAGE
"The law requires that each person working on this site or providing services related to this
construction project must be covered by workers' compensation insurance. This includes
persons providing, hauling, or delivering equipment and materials, or providing labor or
transportation or other service related to the project, regardless of the identity of their
employer or status as an employee,"
"Call the Tezas Workers' Compensation Commission at 5121440-3789 to receive information
on the legal requirement for coverage, to verify whether your employer has provided the
required coverage, or to report an employer's failure to provide coverage." and
(h) contractually require each person with whom it contracts to provide services on a project, to:
o� (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;
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(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;
(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
(viii) 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.
29. 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 privileges of employment.
30. 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 thereof, 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 furnished 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.
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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 the contract for changes in the work.
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 fulfillment 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.
34. TIME FOR COMPLETION AND LIQUIDATED DAMAGES
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
of this contract, the Owner may withhold permanently from Contractor's total compensation, the sum of $250.00 (TWO
HUNDRED FIFTY DOLLARS) PER DAY, not as a penalty, but as liquidated damages for the breach of the contract as
herein set forth for each and every calendar 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
r; 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
r" 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 further agreed and understood between the Contractor and Owner that time is of the essence of this contract.
35. THE AND ORDER OF COMPLETION
It is the meaning and intent of this contract, unless otherwise herein specifically provided, that the Contractor shall be
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
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 bid; 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 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 intends 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 TDAE
The Contractor agrees that he has submitted his bid 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 consider such written request
and respond to Contractor in writing granting or rejecting the request for an extension of time to complete the project.
37. HINDRANCE 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
contents, 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
bids 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
project.
39. PROTECTION OF ADJOINING PROPERTY'
j 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
t 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 frill conformity with the specifications and
stipulations herein contained, the Owner agrees to pay the Contractor the price set forth in. the bid 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
r 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 firrnish 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 arty 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 5% 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
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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 acceptance of the work to the Contractor.
44. FINAL PAYMENT
Upon the issuance of the certificate of completion, the Owner's Representative shall proceed 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 31st 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
obligations under the terms of this contract; and said payment shall become due in any event upon said performance by the
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.
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 arty 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 WITHI-IELD
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
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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
rthe 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
r^ 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.
In case the Surety should fail to commence compliance with the notice for completion herembefore 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
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 least 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 cost 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 been 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 hereinabove 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
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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
rsite of the work, notice thereof, together with an itemized list of such equipment and materials shall be mailed to the
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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 elect. The Owner shall release any
machinery, equipment, tools, materials, or supplies which remain on the *jobsite and belong to persons other than the
Contractor or his Surety, to their proper owners.
50. ABANDONMENT BY OWNER
In rase the Owner shall fail to comply with the terms of this contract, and should fail or refuse to comply with said terms
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
Representative 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 attached bid, 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 will be required to furnish a performance bond in accordance with Chapter 2253, Government Code,
in the amount of 100% of the total contract price in the event that said contract price exceeds $ 100,000 and the successful
bidder will be require to furnish a payment bond in acoordance with Chapter 2253, Government Code, in the amount of
100% of the total contract price in the event that said contract price exceeds $25,000. 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 fiunished.
52. SPECIAL CONDITIONS
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 Owner's 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 rase of dispute Owner may
remove the debris and charge the cost to the Contractor.
CURRENT WAGE DETERNUNATIONS
Resolution 7#72502
January 8, 1987
Agenda Item #18
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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.
B.C. McMINN, MAYOR
,ATTEST.
Ta--nettdk,Boyd, City Secretary
APPROVE7,P
ONTENT: APPROVED AS TO FORM:
Bi 1 P�yne, D rector of Building Ddrald G. Vandiver, Firs t
�� a
Services Assistant City Attorney
EXHIBIT A
City of Lubbock
Building Construction Trades
Prevailing Rates
Craft
Acoustical Ceiling Installer
Air Conditioner Installer
Air Conditioner Installer -Helper
Bricklayer
Bricklayer -Helper
Carpenter
Carpenter -Helper
Cement Finisher
Drywall Hanger
Electrician
Electrician -Helper
Equipment Operator -
Heavy
Light
Floor Installer
Glazier
Insulator, Piping/Boiler
Insulator -Helper
Iron Worker
Laborer, General
Mortar Mixer
Painter
Plumber
Plumber -Helper
Roofer
Roofer -Helper
Sheet Metal Worker
Sheet Metal -Worker -Helper
Welder - Certified
Hourly Rate
$11.60
8.35
5.50
10.50
5.00
11.00
5.50
7.35
8.70
10.50
5.25
8.00
5.70
8.00
7.50
9.50
5.00
7.30
4.75
5.60
8.75
9.25
6.00
7.65
4.75
8.75
5.50
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
EXHIBIT C
Electric Construction Trades
Prevailing Wage Rates
Craft
Power Line Foreman
Lineman Journeyman
Lineman Apprentice Series
Groundman Series
Hourly Rate
$11.00
10.45
8.90
7.25
EXHIBIT p
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.
F
STREET PAVING
FORDHAM STREET -TO AVENUE "X"
AVENUE "X"-ERSKINE STREET TO GRINNELL STREET
FOR THE
NORBOB ADDITION
TECHNICAL SPECIFICATIONS
STREET/DRAINAGE ENGINEERING
MARCH 1,1996
n
rA
1. GENERAL
The following paragraphs give the specifications on the
various materials which are to be used in this project. On
minor items a certificate from the manufacturer may be
required, certifying that the material or equipment meets the
specifications for such material as specified herein. All
materials shall be subject to the approval of the Engineer
before being used. All references in these specifications to
American Society for Testing and Materials (ASTM) designations
shall be the latest revisions. All references in these
specifications to the Texas Department of Transportation
(TxDOT) Standard Specifications for Construction of Highways,
Streets and Bridges shall mean the 1993 Edition, unless
otherwise noted.
Cement shall -conform to ASTM C-150, Type I and Type III, and
shall be an approved brand.
Concrete aggregates shall consist of natural, washed and
screened sand, and washed and screened gravel or clean
crushed stone conforming to ASTM C-33 and TxDOT Item 360.
Coarse aggregate for Class "C" Concrete Street Paving shall
be crushed limestone (Brownwood Type). The aggregate shall
be well graded from coarse to fine and shall be free from
injurious amounts of clay, soft or flaky materials, loam or
organic impurities. All aggregate shall be approved by the
Engineer before use. Maximum size of aggregate shall be 1-
1/2 inches. Aggregate for concrete construction proposed to
be used in this project shall have a loss not to exceed 18%
when subjected to 5 cycles of the Magnesium Sulfate
soundness test ASTM C-88.
The location of all stockpiles of aggregate shall be
approved by the Engineer prior to unloading as to zoning
requirements, smoothness and compaction of the ground, and
traffic conditions. Stockpiles of aggregate to be
incorporated into the project shall be protected from dust
by drift fences of any suitable material approved by the
Engineer, when sandstorm possibilities exist. Care will be
M-1
taken to prevent dusty conditions in the stockpile area from
any sources.
C. kZater
Water shall be clean,.clear, free from oil, acid or organic
matter and free from injurious amounts of alkali, salts or
other chemicals.
The Contractor will submit test certificates from an
approved commercial laboratory on all aggregates proposed
.for use on this work. Tests should be made approximately 20
•days before beginning the concrete operation.
The Contractor will submit, in,advance of construction, the
mix design and the result of compression tests made. by a
commercial laboratory. These will be made on each type of
concrete mix design proposed for use on this project.
Tests shall be made on 6 cylinders for each mix, 3 tested in
3 or 7 days, 3 tested at 7 or 28 days. Additional tests
shall be furnished if material source is changed or if
concrete used varies from the original design.
The Engineer shall approve the mix design after the pre -
construction tests have been completed.
Construction Tests
Tests of the aggregates and the concrete will be made by the
Engineer during construction to determine conformity with
the specifications. Test cylinders will be made in
accordance with ASTM C-31. The specimens shall be cured
under standard moisture and temperature conditions in
accordance with requirements of ASTM C-31.
Strength tests shall be made, in general, for each day's
run, or for each 50 cubic yards of concrete if a day's run
greatly exceeds this amount, but these tests may be made
entirely at the discretion of the Engineer. Strength tests
on Class "C" Concrete shall be made for approximately each _
30 cubic yards, or every third truck on each day's run. The
costs of all such testing will be borne by the City but the
Contractor shall cooperate in securing and storing samples
and shall furnish all materials required for sampling.
A strength test shall consist of five standard test
cylinders made from a composite sample obtained in
accordance with the .requirements of ASTM C-172. Two of the
M-2
r cylinders shall be tested at 3 or 7 days and at 7 or 28
days. The fifth cylinder- shall be held available for
subsequent testing, if determined necessary by the Engineer.
The test result shall be the average of the two 7 or 28 day
specimens, except that,. if one specimen in the test shows
manifest evidence of improper sampling, molding, or testing,
r' it shall be discarded and the remaining two strengths
averaged. Should more than one specimen representing a
given test show definite defects, due to improper sampling,
molding or testing, the entire test shall be discarded.
The result of the 7 or 28 day strength tests shall be used
as the basis for accepting or rejecting the concrete
represented.
The results of the 3 or 7 day strength tests will be
compared with the 3 or 7 day strength of the preconstruction
test cylinders for the type and slump of the concrete being
produced. Should the 3 or 7 day strengths indicate a
deficiency in the 7 or 28 day strengths, the Engineer may
require a temporary change in proportions to correct such
deficiency. Such change shall remain in effect until the 7
or 28 day strength of the material in question is
determined, at which time the change shall become permanent
or shall be rescinded, depending upon the results of the 7
or 28 day test.
The Engineer shall record the delivery ticket number for the
concrete and the exact location in the work at which each
load represented by a strength test is deposited.
Concrete conforming to these specifications may be "Ready
Mix" but transporting vehicles shall be operated such as to
insure delivery and placement in forms without loss or
segregation of ingredients and within one hour of mixing
time. Concrete will be mixed continuously during transit.
All concrete for curb and gutter, valley gutters, fillets
and alley stubs, alley slabs, drainage channels, inlet
boxes, headwalls, and medians shall have 511 air entrainment
(±1-1/2o tolerance). The concrete mix design shall be based
on water -cement ratio, and shall be as follows for the
different classes of concrete.
M-3
Class
Minimum Sacks
Cement per C Y
Max. Gal.
Water per sack
Max. Slump
in inches
A
5
6.5
4
C
6
6
3
E
5.5
5.5
3
F
6
5.5
2
The concrete mix design for the different classes shall also
be such that the compressive and flexural strength for each
class shall not be less than the following:
Minimum Average for
Mass any test
A --- 2100 --- 3000
C ---- 3000 600 3600
E 2500 3000 ---
F 2900 3500 --- ----
Any concrete failing to meet these strength requirements or
air content shall be removed and replaced.
Any class of concrete incorporated in any part of the
project which does not meet the strength requirements
specified above, shall be considered low strength concrete.
Low strength concrete shall be removed and replaced at the
expense of the Contractor.
The Engineer shall determine the exact limits of any low -
strength concrete required to be removed and replaced under
the provisions of this paragraph. The methods to be used in
removing and replacing such concrete shall be approved by
the Engineer.
F. Classification
Unless otherwise shown on the plans: Class A concrete shall �.
be used for curb and gutter, fillets, drainage channels,
medians, inlet boxes, headwalls and sidewalks; Class C
concrete shall be used for concrete paving and valley _
gutters constructed in thoroughfare and collector streets;
Class E concrete shall be used for valley gutters on streets
other than thoroughfares and collectors and for alley
returns, alley paving and reinforced gutter sections; Class
F concrete is used for railroad sections.
M-4
All aggregates shall be accurately weighed or measured by
volume. The concrete shall be mixed in an approved batch
mixer equipped with an accurate water measuring tank, and
shall be mixed for one and one-half minutes after all
material is in the mixer. "Ready Mixed" or "Transit Mixed"
concrete may be used. If used, it shall conform to these
specifications and ASTM C-94 and TxDOT Item 522.
After mixing, the concrete shall be transported to the forms
in a manner which will prevent separation or segregation of
the aggregates and shall be placed without undue delay. It
shall be deposited as nearly as practicable in its final
position in order to avoid rehandling or flowing of the
concrete. No water shall be added to the concrete to
facilitate finishing.
Compounds used to form an
concrete surface for curing
Item 526 and ASTM C-309.
air tight membrane over fresh
purposes shall conform to TxDOT
Wire mesh reinforcing shall conform to ASTM A-185.
Mesh reinforcement shall be of the size shown on the plans.
All reinforcement shall be permanently marked with grade
identification marks or shall, on delivery, be accompanied
by a manufacturer's guarantee of grade and compliance with
these specifications. Reinforcement stored on the site
shall be protected from accumulations of grease, mud or
other foreign matter and from rust producing conditions and
shall be free from rust, scale, oil, mud or structural
defects when incorporated into alley slabs or valley
gutters.
Reinforcing steel to be used
to ASTM A-432 and shall
requirements unless otherwise
R- 7.= I • -ll-!
on this project shall conform
be deformed to ASTM A-615
shown on the plans.
1. The fiber used shall be 100 per cent virgin polypropylene
collated, fibrillated fibers specifically manufactured
for use as concrete reinforcement, containing no
reprocessed olefin materials.
M-5
2. The physical characteristics of the fiber to be used is
as follows: Specific Gravity - 0.91; Tensile Strength -
70 to 110 ksi; Length of fibers - 1/211.
3. Fibrous concrete reinforcement materials provided by this
section shall produce concrete conforming to the
requirements for each type and class of concrete listed
in Section M-2-E. Quantities to be used shall conform to
manufacturer's recommendations, unless otherwise directed
by the Engineer.
4. JOINT MATERIAL
A. mansion Joint Materials
Bituminous premolded expansion
to TxDOT Item 433.2 (5) (c) (1) .
joint material shall conform
Expansion joints shall be placed as shown on the plans or as
directed by the Engineer.
• - OR -
Joint sealing material shall be W.R. Meadows SOF-SEAL or
approved equivalent. The backer rod shall be approved and
compatible with the approved sealing material.
5. FORMS
Forms for curb and gutter and alley paving may be of wood or
metal, of a'section satisfactory to the Engineer; straight,
free of warp, and a depth equal to the depth of the concrete
section formed. Forms shall be -constructed accurately to the
line and grade as established in the field, shall be
adequately braced so that they will not move during the
placing of the concrete, and shall remain in place at least
twelve (12) hours after placing concrete. Forms shall be
oiled with a light oil before each use and forms which are to
be re -used shall be cleaned immediately after each use and
maintained in good condition. Curb forms shall be such that
the face of the curb.can be formed by use of a face form held
in place by steel templates. Forms used for curb shall meet
all of the above specifications, except that face forms on
curb radii may be omitted if a truesectionand an accurate
.flow. can be obtained by other methods approved by the
Engineer. In no case will a.concrete pour be started without
the approval of the Engineer. No forms shall be placed until
the subgrade is within one inch (111) of its finished- grade.
Forms for alley slabs may be used as a guide. for screeding.
Where longitudinal construction joints are required, the form
shall be so constructed as to provide a 1-1/8 inch 'IV" shaped
groove in the face.
d
i
i
6.
FLEXIBLE
BASE
(CALICHE)
A.
Descrintion
"Flexible Base (Caliche)" shall consist of a foundation course
for surface course or for other base courses. It shall be
composed of caliche and stone materials and shall be
constructed as herein specified in one or more courses in
conformity with the typical sections shown on plans and to
the lines and grades as established by the Engineer.
B. Material
1. The material for the base course shall consist of
argillaceous limestone, calcareous or calcareous clay
particles, conglomerate, gravel, sand or other granular
materials. The material source shall be approved by
the Engineer. All the acceptable material shall be
crushed and returned to the screened material again in
such manner that a uniform product will be produced.
Samples for testing the material shall be taken prior
to the compaction operations.
2. The material will conform to the requirements:
Sieve Size 2" 1-1/2" 7/8" 1/2" #4 #40
-------------------------------------------------------
retained 0 0-5 8-30 30-55 50-70 70-90
Material, passing the No. 40 sieve shall be known as
"Soil Binder" and shall meet the following requirements
when prepared in accordance with Test Method Tex-101-E
procedure:
Liquid Limit - 45 maximum; plasticity
Index - 15 maximum, 3 minimum; and,
Linear Shrinkage - 10 maximum
3. Wet Ball Mill Test of Flexible.Base Material
The material, when tested in accordance with Test
Method Tex-116-E, shall have a maximum allowable value of
55.
' S y
A. Description
This item shall consist of base courses to be composed of a
compacted mixture of graded gravel base material from
sources approved by the Engineer, (Once the source is
Poo selected the Contractor will not change to another source
°G without the Engineer's approval) and asphaltic material,
mixed hot in an approved mixing plant. The percent asphalt
M-7
shall be determined by the Engineer
Method Tex-126-E and Tex-204-F
procedures.
in accordance with Test
or other established
B.Materials
I. Mineral Aggregate (Graded Gravel)
The material shall be crushed and shall be screened as
necessary to meet the requirements hereinafter
specified and shall consist of durable aggregate
particles otherwise specified below.
2.
Prior to the mixing operations with asphaltic material,
processed mineral aggregate shall be stockpiled on an
area previously cleared of trash, weeds and grass and
smoothed as directed by the Engineer. 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 Engineer. The plant shall have and
maintain at least a two day supply of aggregate on hand
unless otherwise directed by the Engineer. Material
shall be stockpiled in such a manner as to prevent
segregation of aggregate and mixing of aggregate from
stockpiles and/or other sources. The gradation
requirements for the individual stockpiles and
proportioning from these stockpiles will be the
Contractor's responsibility.
Unless otherwise specified, the grading of the mineral
aggregate shall conform to the limitations as shown
below:
This mixture shall meet the TxDOT Item 345
Grade 4 — Grading requirements -percent retained -sieves
- t1 11 11 1L/I #40
0 8-30 30-55 50--70 70-90
Material passing the No. 40 sieve shall be known as
"Soil Binder" and shall meet the following requirements
when prepared in accordance with the Test Method 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
M-8 �
J
r-
Samples for testing the material shall be taken prior to
the mixing operations. Where more than one material is
used, tests will be on the combined materials.
The mineral aggregate shall
moisture prior to entering
asphalt.
AWMPITTWIMMO_ -
not contain more than 0.5%
the pugmill for mixing with
Asphalt for the paving mixture shall be of the type as
determined by the Engineer and shall meet the requirements
of TxDOT Item 300. The grade of asphalt used shall be
designated by the Engineer. The Contractor shall notify the
Engineer of the source of his asphaltic material prior to
design or production of the asphaltic mixture and this
source shall not be changed during the course of the
project, except when authorized by the Engineer.
The mixture shall consist of a uniform mixture of
mineral aggregate and asphaltic material. The mineral
aggregate will conform to the gradation requirements
specified. The asphaltic material shall form from 4% to
9% of the mixture by weight. The design percent asphalt
shall be determined in accordance with Test Method Tex-
126-E or Test Method Tex-204-F and procedures outlined in
the TxDOT Bulletin C-14. The percent of asphalt in the
mix shall be determined by ASTM D-2172, ASTM D-4125,
Tex-210-F or Tex-126-F.
Asphaltic materials shall meet the requirements of the
TxDOT Item 300, as approved by the Engineer.
The Engineer will designate the asphalt content to 'be
used in the mixture after design tests have been made
with the aggregate to be used in the project. When
tested as determined by the Engineer, samples of the
mixture shall not vary from the asphalt content
designated by the Engineer by more than 0.2 percent dry
weight (based on total mixture).
Asphaltic concrete pavement and asphaltic stabilized
base shall be machine laid.
M-9
,, EQUIPMENT —MIXING PLANTS BLACK BASE AND SOT -MIX
All equipment for the handling of all materials and mixing and
placing of the mixture shall be maintained in good repair and
operating condition and subject to approval of the Engineer.
Any equipment found to be defective and affecting the quality
of the mixture will be replaced.
Mixing plants may be the weigh -batch type or the continuous
mixing type or the drum mix type. All types of plants shall
be equipped with satisfactory conveyors, power units,
aggregate handling equipment, bins and dust collectors and
shall consist of the following essential pieces of equipment.
When requested by the Engineer, weigh -batch, and continuous
types of mixing plants shall be equipped with automatic
proportioning devices in accordance with TxDOT Item 520. if
automatic recording devices are required by the plans, they
shall be in accordance with the TxDOT Item 520.
A. -Weigh -Batch Type
The number of bins in the cold aggregate bin unit shall
be equal to or greater than the number of stockpiles of
individual materials to be used.
The bins shall be of sufficient size to store the amount
of aggregate required to keep the plant in continuous
operation and of proper design to prevent overflow of
material from one bin to another. The proportioning
device shall be such as will provide a uniform and
continuous flow of aggregate in the desired proportion to
the dryer. Each aggregate shall be proportioned from a
separate bin.
2.Drye_r
The dryer shall be the type that continually agitates the
aggregate during heating and in which the temperature can
be so controlled that the aggregate will not be injured
in the necessary drying and heating operations required
to obtain a mixture of the specified temperature. The
burner, or combination of burners, and type of fuel used
shall be such that in the process of heating the
aggregate to the desired or specified temperature, no
residue from the fuel shall adhere to the heated
aggregate. A recording thermometer shall be provided
which will record the temperature of the aggregate prior
to the mixing operation. The dryer shall be of
sufficient size to keep the plant in continuous
operation.
M-10
3. Screening and Progarti'onincr
The screening capacity and size of the hot aggregate bins
shall be sufficient to screen and store the amount of
aggregate required to properly operate the plant and to
keep the plant in continuous operation at full capacity.
The hot bins shall be constructed so that oversize and
overloaded material will be discarded through overflow
chutes. Provisions shall be made to enable inspection
forces to have easy and safe access to the proper
location on the mixing plant where representative samples
may be taken from the hot bins for testing. The plant
shall be equipped with at least three hot bins. The
aggregate shall be separated into the number of bins
indicated on the plans or as directed by the Engineer.
.•. -.. MO.."I-
The aggregate weigh box and batching scales shall be of
sufficient capacity to hold and weigh a complete batch of
aggregate. The weigh box and scales shall conform to the
requirements of TxDOT Item 520.
S. Asphaltic Material Bucket and Scales
The asphaltic material bucket and scales shall be of
sufficient capacity to hold and weigh the necessary
asphaltic material for one batch. If the material is
measured by weight, the bucket and scales shall conform
to the requirements of the TxDOT Item 520. If a pressure
type ^flow meter is used to measure the asphaltic
material, the requirements of TxDOT Item 520 shall apply.
This system shall include an automatic compensation
device to insure a constant percent, by weight, of
asphaltic material in the mixture.
The mixer shall be of the pugmill type and shall have a
capacity of not less than 3,000 pounds (of natural
aggregate mixture) in a single batch, unless otherwise
r shown on the plans. The number and position of blades
zi shall provide a uniform mix. The mixer shall be equipped
with an approved spray bar that will distribute the
asphaltic material quickly
and uniformly throughout the
mixer. Any
mixer that has
a tendency to segregate the
aggregate or
fails to secure
a thorough and uniform
mixture with
the asphaltic
material shall not be used.
This shall be
determined by
mixing the standard batch for
t.'
the required
time, then dumping the mixture, taking
samples from
its different
parts and testing by Test
r
Method Tex-210-F
to show
that the batch is uniform
throughout. All mixers shall be provided with an
!r' M-11
automatic timer that will lock the discharge doors of the
mixer for the required mixing period. The dump door or
doors and the shaft seals of the -mixer shall be tight
enough to prevent spilling of aggregate or mixture from
the mixer,
7. $urge -Storage System
A surge -storage system may be used. It shall be adequate
to minimize production interruptions during the normal
day's operation. A device such as a gob hopper or other
similar devices approved by the Engineer to prevent
segregation in the surge -storage bin will be required.
If the Contractor elects to use a surge -storage system,
scales conforming to the -requirements outlined herein
will be required.
8.Scales
Scales may be standard platform truck scales or other
equipment such as -weigh hopper (suspended) scales
approved by the Engineer. All scales shall conform to
the TxDOT Item 520. If truck scales are used, they shall
be placed at a location approved by the Engineer. If
other weighing equipment is used, the Engineer may
require weight checks. by truck scales for the basis of
approval of the equipment.
B.Continuous Mixing Type
1. Cold Aggregate Bin Unit and Proportioning Device
Same as for weigh -batch type of plant.
2. Dryer
Same as for weigh -batch type of plant.
.3. Screening and Proportioning
Same as for weigh -batch type of plant.
4. Hot Aggregate Bin
The hot bins shall be
and overloaded material
overflow chute. Hot
deficient in material.
automatically stops
adjustments are made.
so constructed that oversize
will be discarded through an
aggregate bins that become
shall activate a switch that
the plant until proper
M-12
I
5. Hot Aggregate Proportioning Device
The hot aggregate proportioning device
designed that when properly operated,
continuous flow of aggregate into the
maintained.
shall be so
a uniform and
mixer will be
r The asphaltic material spray bar shall be so
designed that the asphalt will spray uniformly and
continuously into the mixer.
NNET-W u_ - o- -
An asphaltic material recording meter meeting the
requirements of the TxDOT Item 520, shall be placed in
the asphalt line leading to the spray bar so that the
cumulative amount of asphalt used can be accurately
determined. Provisions of a permanent nature shall be
made for checking the accuracy of the meter output. The
asphalt meter and line to the meter shall. be protected
with a jacket of hot oil or other approved means to
maintain the temperature of the line and meter at or near
that temperature specified for the asphaltic material.
Unless otherwise shown on the plans, the temperature of
the asphaltic material entering the recording meter shall
be maintained at f10°F of the temperature at which the
asphalt metering pump was calibrated and set. Inability
to maintain this tolerance in temperature shall result in
an adjustment of the pay quantity for the asphaltic
material.
If a pressure type flow meter is used to measure the
asphaltic material, the requirements of the TxDOT Item
520, shall apply.
8. Mixer
The mixer shall be of the pugmill continuous type and
shall have a capacity of not less than 40 tons of mixture
per hour. Any mixer that has a tendency to segregate the
aggregate or fails to secure a thorough and uniform
mixing of the aggregate with the asphaltic material shall
not be used. The dam gate at the discharge end of the
pugmixer and/or pitch of the mixing paddles shall be so
adjusted to maintain a level of mixture in the pugmixer
between the shaft and the lower paddle tip (except at the
discharge end).
*" M -13
A surge -storage system may be used. It shall be
adequate to minimize production interruption during the
normal day's operation. A device such as a gob hopper or
other similar devices approved by the Engineer to prevent
segregation in the surge -storage bin will be required.
If the Contractor elects to use a surge storage system,
scales conforming to the requirements outlined herein
will be required.
10. Scales
Scales may be standard platform truck scales or other
equipment such as weigh hopper (suspended)scales approved
by the Engineer. All scales shall conform to the TxDOT
Item 520. If truck scales are used, they shall be placed
at a location approved by the Engineer. If other
weighing equipment is used, the Engineer may require
weight checks by truck scales for the basis of approval
of the equipment.
Unless otherwise shown on the plans, the Contractor may, at
his option elect to use the drum mixing process in the
mixing of asphalt'stabilized base material. The plant shall
be adequately designed and constructed for the process of
mixing aggregates and asphalt in the dryer -drum without
preheating the aggregates. The plant shall be equipped with
satisfactory conveyors, power units, aggregate handling
equipment and feed controls and shall consist of the
following essential pieces of equipment.
1. Cold Aggregate Bin Unit and Feed System
The number of bins in the cold aggregate bin unit shall
be equal to or greater than the number of stockpiles of
individual materials to be used.
The bins shall be of sufficient size to store the amount
of aggregate required to keep the plant in continuous
operation and of proper design to prevent overflow of
material from one bin to another. The feed system shall
provide a uniform and continuous flow of aggregate in the
desired proportion to the mixer. Each aggregate shall be
proportioned in a separate bin with total and
proportional control.
The system shall provide positive weight measurement of
the combined cold -aggregate feed by use of belt scales or
other approved devices. Provisions of a permanent nature
shall be made for checking the accuracy of the measuring
M-14
Ji.
7 device as required by the TxDOT Item 520. When a belt
scale is used, mixture production shall be maintained so
that the scale normally operates between 50 percent and
100 percent of its rated capacity. Belt scale operation
below 50 percent of the rated capacity may be allowed by
the Engineer if accuracy checks show the scale to meet
the requirements of the TxDOT Item 520, at the selected
rate and it can be satisfactorily demonstrated to the
Engineer that mixture uniformity and quality have not
been adversely affected.
A scalping screen shall be required, unless otherwise
shown on the plans, and shall be located ahead of any
weighing device.
An asphaltic material measuring device meeting the
requirements of the TxDOT Item 520, shall be placed in
the asphalt line leading to the dryer -drum mixer so that
the cumulative amount of asphalt used can be accurately
determined. Provisions of a permanent nature shall be
made for checking the accuracy of the measuring device
output. The asphalt measuring device and line to the
measuring device shall be protected with a jacket of hot
oil or other approved means to maintain the temperature
of the line and measuring device near that temperature
specified for the asphaltic material. The measuring
system shall include an automatic temperature
compensation device to maintain a constant percent, by
weight, of asphaltic material in the mixture. Unless
otherwise shown on the plans, the temperature of the
asphaltic material entering the measuring device shall be
maintained at ±10°F of the temperature at which the
asphalt measuring device was calibrated and set.
If a pressure type flow meter is used to measure the
asphaltic material, the requirements of the TxDOT Item
520, shall apply.
The asphaltic material feed -control shall be coupled with
the total aggregate weight measurement device in such
manner as to automatically vary the asphalt -feed as
required to maintain the required proportion.
5.Drum Mix
The drum mixing system shall be of the type that
continually agitates the aggregate and asphalt mixture
M-15
during. heating. The temperature ;shall be so controlled
that the aggregate and asphalt will not be damaged in the
necessary drying and heating operations required to
obtain a mixture of the specified temperature. A
continuously recording thermometer shall be provided
which will indicate the temperature of the mixture as it
leaves the drum mixer.
A surge -storage system will be required. It shall be
adequate to minimize the production interruptions during
the normal day's operations and shall be so constructed
to minimize segregation. A device such as a gob hopper
or other similar device approved by the Engineer to
prevent segregation in the surge -storage bin will be
required.
7.Scales
Scales may be standard platform truck scales, belt scales
or other equipment such as weigh hopper (suspended)
scales approved by the Engineer. All scales shall
.conform to the TxDOT Item 520. If truck scales are used,
they shall be placed at a location approved by the
Engineer. If other weighing equipment. is used, the
Engineer may require weight checks by truck scales for
the.basis of approval of the equipment.
Asphaltic material heating equipment shall be adequate to
heat the amount of asphaltic material required to the
desired temperature. Asphaltic material may be heated by
steam coils which shall be absolutely tight. Direct fire
heating of asphaltic materials will be permitted, provided
the heater used maintains a positive circulation of the
asphalt throughout the heater without damage to the asphalt.
Agitation with steam or air will not be permitted. The
heating apparatus shall be equipped with a continuously
recording thermometer with a 24-hour chart that will record
the temperatures of the asphaltic material at the highest r
temperature
• -_•_�• • 0 _ ,4• 4- !._ •-
The spreading and finishing machine shall be of a type
approved by the Engineer, shall be capable of producing a
surface that will meet the requirements of the typical cross
section and the surface test, when required, and when the
mixture is dumped directly into the finishing machine shall
have adequate power to propel the delivery vehicles .in a
satisfactory manner. The finishing machine shall be
M-16
n
equipped with a flexible spring and/or hydraulic type hitch
J sufficient in design and capability to maintain contact
between the rear wheels of the hauling equipment and the
pusher rollers of the finishing machine while the mixture is
.: being unloaded.
The use of any vehicle which requires dumping directly into
the finishing machine and which the finishing machine cannot
push or propel in such a manner as to obtain the desired
lines and grades without resorting to hand finishing will
not be allowed. Vehicles dumping directly or indirectly
into the.finishing machine shall be,so designed and equipped
that unloading into the finishing machine can be
mechanically and/or automatically operated in such a manner
that overloading the finishing machine being used cannot
occur and the required lines and grades will be obtained
without resorting to hand finishing.
Unless otherwise shown on the plans, dumping of the
fiasphaltic mixture in a windrow and then placing the mixture
in the finishing machine with loading equipment will be
I' permitted provided that the loading equipment is constructed
and operated in such manner that substantially all of the
71 mixture deposited on the roadbed is picked up and loaded in
the finishing machine without contamination by foreign
material of the mixture and excessive temperature loss is
not encountered. The loading equipment will be so designed
and operated that the -finishing machine being loaded will
obtain the required line, grade and surface without
resorting to hand finishing. Any operation of the loading
equipment resulting in the accumulation and subsequent
shedding of this accumulated material into the asphaltic
mixture will not be permitted.
F . Rollers
R' It shall be the responsibility of the Contractor to have
rolling equipment available on the job to properly compact
the paving mixture in place as required without delay to the
t�. laydown operation. Rollers provided shall meet the
qualifications for their type as follows:
1. Pneumatic Tire Rollers (Required on all Black
Base and Hot Mix Surfacing)
The rollers shall be acceptable medium pneumatic tire
rollers conforming to the requirements of the TxDOT Item
r, 213, Type B, unless otherwise specified on the plans.
2. Two Axle Tandem Roller (Required on All Hot Mix
Surfacing)
r"
1"' M- l7
This roller shall be an acceptable power -driven tandem
roller weighing not less than 8 tons.
3. Three Wheel Roller (Required on All Black Base
and Hot Mix Surfacing)
This roller shall be an acceptable power -driven three
wheel roller weighing not less than 10 tons.
4. Three Axle Tandem Roller
This roller shall be an acceptable power -driven three
axle roller weighing not less than 10 tons.
This roller shall be an acceptable power -driven trench
roller equipped with sprinkler for keeping the wheels wet
and an adjustable road wheel so that the roller may be
kept level during rolling. The drive wheel shall be not
less than 20 inches wide. The roller -under .working
conditions shall produce not less than 325 pounds per
linear inch of roller width and be so geared that a speed
of 1.8 miles per hour is obtained in low gear.
6. Vibratory Steel -Wheel Roller (Required on all Black Base)
60
This roller shall have a minimum weight of .6 tons. The
compactor shall be equipped with amplitude and frequency
controls and specifically designed to compact the
material on which it is used, and shall be operated in
accordance with the manufacturer's recommendations or as
directed by the Engineer.
When directed by the Engineer, the Contractor shall
provide acceptable 10-foot straightedges for surface
testing. Satisfactory templates shall be provided as
required by the Engineer.
-_ _o. - . .1�-T@
When permitted by the Engineer in writing, equipment
other than that specified which will consistently produce
satisfactory results may be used.
It will be the Contractor's responsibility. to provide
safe and accurate means to enable inspection forces to
take all required samples, and to provide permanent means
for checking the output of any specified metering device
M-18
and to perform the calibration checks as required by the
I Engineer.
Prior to mixing operations with asphaltic material,
processed mineral aggregate shall be stockpiled on an
area previously cleared of trash, weeds and grass and
shall be smoothed and well drained as directed by the
Engineer. 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
Engineer. The plant shall have and maintain at least a
two-day supply of aggregates on hand at all times, unless
otherwise directed by the Engineer. Material shall be
stockpiled in such a manner as to prevent segregation of
aggregate and mixing of aggregates from stockpiles and/or
other sources and will not allow contamination with
foreign material. More than one stockpile will be
permitted unless otherwise shown on plans. The gradation
requirements for the individual stockpiles and
proportioning from these stockpiles will be the
Contractor's responsibility as approved by the Engineer.
_IRow . 9• •M •O_ 4s. -
The asphaltic material storage shall be ample to meet the
requirements of the plant. Asphalt shall not be heated
[ to a temperature in excess of that specified in TxDOT
Item 300. All equipment used in the storage and handling
of asphaltic material shall be kept in a clean condition
at all times and shall be operated in such manner that
there will not be contamination with foreign matter.
The feeding of various sizes of aggregate to the dryer
shall be done through the cold aggregate bins and the
proportioning device in such a manner that a uniform and
constant flow of materials in the required proportions
will be maintained. The aggregate shall be dried and
heated to the temperature necessary to produce a mixture
having the specified temperature. In no case shall the
aggregate be introduced into the mixture unit at a
temperature more than 4000 F.
The proportioning of the various materials entering the
asphaltic mixture shall be the responsibility of the
Contractor as approved by the Engineer and in accordance
M-19
i .
with these specifications. The asphaltic material and
aggregates may be proportioned by weight or by volume
based on weight using the specified eauinment_
U �•
(a)
In the charging of the weigh box and in the charging
of the mixer from the weigh box such methods or
devices shall be used as are necessary to secure a
uniform asphalt mixture. In introducing the batch
into the mixer, all mineral aggregate shall be
introduced first and shall be mixed thoroughly for a
period of 5 to 20 seconds, or as directed, to
uniformly distribute the various sizes.throughout the
batch before the asphaltic material is added. The
asphaltic material shall then be added and the mixing
continued for a total mixing period of not less than
30 seconds. This mixing period may be increased, if
in the opinion of the Engineer, the mixture is not
uniform or the aggregate is not properly coated. The
differential in temperature of the aggregates and the
asphalt as they enter the pugmixer, shall not exceed
250 F.
Temporary storing or holding of the asphaltic
mixture by the surge -storage system may be used
during the . normal days operation. Overnight
storage will not be permitted unless authorized in
the plans or in writing by the Engineer. The
mixture coming out of the surge storage bin must be
of equal quality to that coming out of the mixer.
The amount of aggregate and asphaltic material
entering the mixer and the rate of travel through
the mixer shall be so coordinated that a uniform
mixture of the specified grading and asphalt
content will be produced. The differential in
temperature of the aggregates and the asphalt as
they enter the pugmixer shall not exceed 250 F.
Checks on asphalt used shall
daily comparing the asphalt
completed mix as shown on
meter and the design amount
The acceptable percent of
asphalt used and the design
on the plans or as determined
be made at least twice
used in ten loads of
the asphalt recording
for these ten loads.
variation between the
amount will be as shown
by the Engineer.
M-20
r
Temporary storing or holding of the asphaltic
mixture by the surge -storage system may be used
during the normal day's operation. Overnight
storage will not be permitted unless authorized in
the plans or in writing by the Engineer. The
mixture coming out of the surge -storage bin must be
of equal quality to that coming out of the mixer.
(c) Drum -mix Plant
The amount of aggregate and asphaltic material
entering the mixer and the rate of travel through
the mixing unit shall be so coordinated that a
uniform mixture of the specified grading and
asphalt content will be produced.
Temporary storing or holding of the asphaltic
mixture by the surge -storage system will be
required during the normal . day's operation.
Overnight storage will not be permitted unless
authorized in the plans or in writing by the
Engineer. The mixture coming out of the surge
storage -bin must be of equal quality to that coming
out of the mixer. The mixture, when discharged
from the plant, shall have a moisture content not
greater than 1 percent by weight unless otherwise
shown.on the plans and/or specified by the Engineer.
The moisture content shall be determined in
accordance with Test Method Tex-212-F, Part II.
The mixture produced from each type of mixer shall
not vary from the specified mixture by more than
the tolerances herein specified.
The asphaltic mixture from each type of mixer shall
be at a temperature between 3000 F and 3500 F when
discharged from the mixer. The Engineer will
approve the temperature within the above limitations,
and the mixture when discharged from
the mixer shall not vary from this selected
temperature more than 250 F. but in no case shall the
temperature exceed 360' F.
a. HMAC - November 1 until April 1
(1) The asphaltic mixture shall not be placed when the
air temperature is below 550 F and falling.
i
M-21
(2) The asphaltic mixture may be placed when the air
temperature is above 500 F and rising.
b. HMAC - April 1 until November 1
(1) The asphaltic mixture shall not be placed when the
air temperature is below 50' R and falling.
(2) The asphaltic mixture may be placed when the air
temperature is above 450 F and rising.
c. Asphalt Stabilized Base
(1) The asphaltic mixture shall not be placed when the
air temperature is below 45' F and falling.
(2) The asphaltic mixture may be placed when the air
temperature is above 40' F and rising.
The Engineer may use his discretion to require a cover over
the asphaltic mixture when being hauled from the plant to
the job site. The air temperature shall be taken in the
shade away from artificial heat ori as reported by the
National Weather Service on their hourly report (Telephone
No. 762-0141). It is further provided that.the prime coat,
tack coat or asphalt stabilized base shall be placed only
when the general weather conditions and temperature and
moisture conditions of the subbase or subgrade, in the
opinion of the Engineer,, are suitable.
If, after being discharged from the mixer and prior to
placing, the temperature of the asphaltic mixture is 25° F
or more below the temperature approved by the Engineer, all
or any part of the load may be rejected and payment will not
be made for the rejected material.
The prime coat shall consist of an application of 0.25
gallons per square yard of MC asphalt. The asphalt
stabilized base shall not be, applied. on. a previously
primed course until the prime coat has completely cured
to the satisfaction of the Engineer.
2..Tack Coat
Before the asphaltic mixture is laid, the surface upon
which the tack coat is to be placed shall be cleaned
thoroughly to the satisfaction of the Engineer. The
surface shall be given a uniform application of tack coat
using asphaltic materials of this specification. This
tack coat shall be applied, as directed by the Engineer,
with an approved sprayer at a rate not to exceed 0.10
M-22
gallon per square yard of surface. Where the mixture
`! will adhere to the surface on which it is to be placed
without the use of a tack coat, the tack coat may be
eliminated by the Engineer. All contact, surfaces of
7 curbs and structures and all joints shall be painted with
a thin uniform coat of the asphaltic material meeting the
^' requirements for tack coat. During the application of
tack coat, care shall be taken to prevent splattering of
adjacent pavement, curb & gutter and structures. The
�* tack coat shall be rolled with a pneumatic tire roller
E when directed by the Engineer.
The asphaltic mixture, prepared as specified above shall
be hauled to the work in tight vehicles previously
cleaned of all foreign material. The dispatching of the
vehicles shall be arranged so that all material delivered
may be placed, and all rolling shall be completed during
daylight hours. The inside of the truck body may be
given a light coat of oil, lime slurry or other material
satisfactory to the Engineer, if necessary, to prevent
mixture from adhering to the body. In cool weather or
for long hauls, canvas covers and insulating of truck
bodies may be required. Vehicles of the semi -trailer
type are prohibited.
4. Placina
Generally, the asphaltic mixture shall be _dumped and
spread on the approved prepared surface with the
specified spreading and finishing machine. When properly
compacted, the finished course will be smooth, of uniform
density, and will conform with the typical sections shown
on the plans and to the lines and grades established by
the Engineer. During the application of asphaltic
material, care shall be taken to prevent splattering of
adjacent pavement, curb and gutter and structures.
f The mixture shall be spread and compacted in layers or
lifts as specified on the plans or as directed by the
Engineer. The sequence of compacting shall be such that
t undue displacement of the edge of the course does not
occur. On deep .lifts, the edge of the course may be
rolled with a motor grader wheel or similar equipment or
supported by blading a roll of earth against the edge of
the course prior to compacting the surface.
'i When the asphaltic mixture is placed in a narrow strip
along the edge of an existing pavement, or used to level
up small areas of an existing pavement or placed in small
irregular areas where the use of a finishing machine is
g g
''. not practical, the finishing machine may be eliminated
M-23
is
when authorized by the Engineer, provided a satisfactory
surface can be obtained by other approved methods.
I. Compaction
1. As directed by the Engineer, the asphalt stabilized
base shall be compacted thoroughly and uniformly with
the specified rollers. In lieu of the rolling
equipment specified, the Contractor may, upon written
permission from the Engineer, operate other compacting
equipment that will produce equivalent relative
compaction as the specified equipment. If the
substituted compaction equipment fails to produce the
desired compaction as would be expected of the specified
,equipment, as determined by the Engineer, its use shall
be discontinued.. When directed by the Engineer, the
initial compaction shall be accomplished with pneumatic
tire rollers.
- 2. When rolling with the three wheel, tandem, or vibratory
rollers, rolling shall start longitudinally- at the
sides and proceed toward the center of the pavement,
overlapping on successive trips by at least; half the
width of the rear wheel unless otherwise directed by the
Engineer. Alternate trips of the roller shall be
slightly different in Jength. On super -elevated curves,
rolling shall begin at the low side and progress toward
the high side unless otherwise directed by the Engineer.
When rolling with vibratory steel wheel rollers, _the
manufacturer's recommendation shall be followed unless
directed otherwise by the Engineer. Rolling with
pneumatic -tire roller shall be done as directed by the
Engineer. Rolling shall be continued until no further
increase in density can be obtained and all roller marks
are eliminated. The motion of the roller shall be slow
enough at all times to avoid displacement of the mixture.
If any displacement occurs, it shall be corrected at once
by the use of a rake, and of fresh mixtures where
required. The roller shall not be allowed to stand on
any portion of the pavement mixture which has not been
fully compacted. To prevent adhesion of the mixture to
the roller, the wheels shall be kept thoroughly moistened
with water, but an excess of water will not be permitted.
All rollers must be in good mechanical condition.
Necessary precautions -shall be taken to prevent the
dropping of diesel, gasoline, oil, grease or other
foreign matter on the roadway, either when the rollers
are in operation or when standing.
3. HandTamping
The edges of the pavement along curbs, headers and
similar structures, and all places not accessible to
M-24
I I
�I
the roller, or in such positions as will not allow
thorough compaction with the rollers, shall be
thoroughly compacted with lightly oiled tamps.
The compacted material shall conform to the typical cross
sections, lines and grades as shown on plans and directed by
the Engineer and shall have a smooth surface with a
reasonably uniform texture acceptable to the Engineer.
Unacceptable finished surfaces may be corrected by the
placement of additional mixture, all at the expense of the
Contractor.
K. Protection- Of Thorls__An_d Ooenin_a_-'o Traffi_c
The completed asphalt stabilized base course shall be opened
to traffic as provided by the plans and as directed by the
Engineer. All construction traffic allowed on the base
f course shall comply with the State laws governing traffic on
highways unless otherwise authorized by the Engineer. When
another.roadway surface is provided for the traveling public
and construction traffic through the project, the Engineer
may prohibit traffic on the completed base course.
L.Surface Density Test
City personnel will provide density test and results
throughout the construction process at no cost to the
Contractor.
Samples of the completed pavement shall be removed from
locations designated by the Engineer _to enable him 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 removed from core holes at no cost to the City. If
the pavement is deficient in composition, compaction, or
thickness, satisfactory correction shall be made as directed
by the Engineer.
9.ASPHALTS
Asphalts for use on this project shall comply with TxDOT Item
300.
A. Latex Additive. Latex additive shall be an emulsion of
'I r styrene -butadiene low -temperature copolymer in water. The
emulsion shall have good storage stability and possess the
following properties.
F;
M-25
f.
Monomer Ratio of Latex 73 ± 5
butadiene to styrene 27 ± 5
Minimum Solids Content, - 45
percent by weight
Viscosity of Emulsion at 2000
77 ± 1 F, cps, max
(No.3 spindle, 20 RPM,
Brookfield RVT Viscometer)
The manufacturer shall furnish the 'actual styrene -butadiene
rubber (SBR) content for each batch of latex emulsion. This
information shall accompany all shipments to facilitate proper
addition rates
B. Latex Modified Asphalt Cement. This material shall consist
of AC-10 asphalt cement in accordance with Subarticle
300.2.(1) to which has been added a styrene-butadiene rubber
latex. The amount shown is based on latex solids in the
finished asphalt cement -latex additive blend. Possible
combinations and their intended uses are as follows:
Material Use
AC-5 + 2% latex solids Seal coats and surface treatments
AC-10 + 20 latex solids Seal coats and surface treatments
or asphaltic concrete
AC-10 + 30 latex solids Asphaltic Concrete
The finished asphalt cement -latex additive blend shall be
smooth, homogeneous, and comply with the following
requirements.
Property
AC-5 AC-10
+ +
% 2% Latex
AC-10
+
326 Latex
Minimum SBR Content, percent by
2.0
2.0
3.0
wt. solids (IR determination)*
Penetration, 100g, 5 sec,770F min
120
80
75.
Viscosity,140°F, poises, minimum
700
1300
1600
Viscosity,275°F, poises, maximum
7.0
8.0
12.0
Ductility, 39.20F, 1 cm/min, cm,
-
-
100
minimum
Ductility, 39.2°F, 5 cm/min, cm,
70
60
-
M-26
F!
71"', (Separation of Polymer, 3250F**
None I None I None
* The asphalt supplier shall furnish the City of Lubbock
testing laboratory samples of the base asphalt and latex
emulsion used in making the finished product.
** A 350 gram sample of the asphalt cement -latex additive blend
is stored for 48 hours at 325°F. Upon completion of the
storage time the sample is visually examined for separation
of rubber from the asphalt (smoothness and homogeneity). If
a question still exists about the separation of rubber a
sample will be taken from the top and bottom for Infrared
Spectroscopy analysis to determine actual rubber contents.
A difference of 0.416 or more between the top and bottom
concentration levels constitutes separation. When the latex
modified asphalt is to be used in asphaltic concrete and the
latex additive is introduced separately at the mix plant,
either by injection into the asphalt line or into the mixer,
the compatibility and stability of the asphalt cement -latex
additive combination shall be determined by preparing a
laboratory blend and storing it for five hours at 325°F.
Upon completion of storage time, the sample shall be
examined as indicated above.
Article 300.3. Storage, Heating and Application Temperatures.
Table of application and mixing is supplemented by the following:
Heating and
Recommended Maximum Storage
Type -Grade Range . sQ Allowable .'F Maximum . QE
All AC -latex blends 300-375
390 390***
*** Maximum temperature for storage by the asphalt supplier or
the Contractor shall be 375°F. On AC-5 and -AC-10 + 2t SBR
designated for seal coat or surface treatment work, the
temperature may be increased to a maximum of 390OF by the
supplier loading through an in -line heater, or with the
Engineer's permission, these materials may be heated to a
maximum of 390OF by the Contractor just prior to application.
10. HOT MIX ASPHALTIC CONCRETE SURFACE
The mineral aggregate shall be composed of coarse aggregate,
a fine aggregate, and if required, a mineral filler.
Samples of coarse aggregate, fine aggregate and mineral
filler shall be submitted to the City of Lubbock Testing
r Laboratory for testing and approval by the Engineer.
M-27
Approval of other material and of the source of supply must
be obtained from the Engineer 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 45, unless otherwise_ -shown on the plans when
tested in accordance with Tex-203-F or ASTM D-2419.
The percent of flat or elongated slivers of stone for any
course shall not exceed 25%, when tested in accordance with
Tex-224-F. All crushed stone shall have a maximum of thirty
percent (3015) doss when tested by the five (5) cycle
magnesium sulfate soundness test ASTM C-88 as performed by
the City of Lubbock Materials Testing Laboratory.
Aggregate that appears susceptible to film stripping when
tested in accordance with ASTM D-1075, minimum 70% index of
retained strength and tested in accordance with AASHTO T-
283, minimum 7001 tensile strength ratio, shall be rejected
or conditioned with an anti -stripping agent as approved by
the Engineer.
Prior to stockpiling of aggregates the area shall be cleaned
of trash, weeds and grass- and be relatively smooth.
Aggregates shall be separated into stockpiles of different
gradation, such as a large coarse aggregate, and a small
coarse aggregate stockpile such that the grading
requirements of the specified type will be met when the
piles are combined in the asphaltic mixture. No coarse
aggregate stockpile shall contain more than 10 percent by
weight of materials that will pass a No. 10 sieve except as
noted on the plans or provided for by special provision.
Fine aggregate stockpiles may contain small coarse aggregate
in the amount of up to 15 percent by weight (100 percent of
which shall pass a 1/4 inch sieve). However, the coarse
aggregate shall meet the quality tests specified herein for
"Coarse Aggregates". Suitable equipment.of acceptable size
shall be furnished by the Contractor to work the stockpiles
and prevent segregation of the aggregates.
If the Contractor utilizes an asphalt continuous mix plant,
the various aggregate stockpiles of different gradation will
be stockpiled in the same manner as described. for
stockpiling of aggregate for asphalt stabilized base. That
is,. the stockpiling of the aggregate shall be made up of
layers of material not to exceed two feet in height of each
layer. The edge of each succeeding layer shall extend
inward so as not to overlap the edge of the layer below. In
loading from the stockpile, the material shall be loaded by
making successive vertical cuts through the entire depth of
the stockpile.
M-28
lII
l
1. Coarse Aggregate
The coarse aggregate shall be that part of the aggregate
retained on a 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 in accordance with Test
T
I
Method Tex-460-A (Part I) .
When coarse aggregate is tested in accordance with Test
Method Tex-217-F, the amount of organic matter, clays,
jI
loams or particles coated therewith or other undesirable
materials shown on the plans shall not exceed 2 percent.
T'!
When it is specified that the coarse aggregate be 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,
'I Decantation), shall not exceed 2 percent. 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 fine
aggregate and the fine aggregate is of the same or
,l
similar material as the coarse aggregate, the P.I.
requirements for the material passing the No. 40 sieve
r. may be waived by the Engineer in writing.
When it is specified that the coarse aggregate be 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 percent.
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 percent 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.
The fine aggregate shall be that part of the aggregate
r passing the No. 10 sieve and shall consist of sand or
screenings or a combination of sand and screenings.
r' The plasticity index of that part of the sand passing the
1.' No.40 sieve shall not be more than 6 when tested in
M-29
c:
3.
accordance with ASTM D-4318. The plasticity_ index of
that part of the screenings passing the No. 40 sieve
shall not be more than 9, unless otherwise shown on
plans, when tested by ASTM D-4318. Fine aggregate from
each source shall meet plasticity requirements.
Sand shall be composed of durable stone particles free
from injurious foreign matter. Screenings shall be of
the same or similar material as specified for coarse
aggregate.
The mineral filler shall consist of thoroughly dry stone
dust, slate, dust, portland cement or other mineral dust
approved by the Engineer. The mineral filler shall be
free from foreign and other injurious matter.
When tested by ASTM D-242 it shall meet the following
grading requirements:
o By Weight
Passing a No. 30 sieve 100
Passing
a
No.
80 sieve
95
to
100
Passing
a
No.
200 sieve
70
to
100
is M :OFUMM
1. Asphalt for Paving Mixtures
Asphalt for the paving mixtures shall be of the types of
oil asphalt as determined by the Engineer.
The grade of asphalt used shall be as designated by the
Engineer after design tests have been made using the
mineral aggregates that are to be used in the project.
If more than one type of asphaltic concrete mixture is
specified for the project, only one grade of asphalt will
be required for all types of mixtures, unless otherwise
shown on plans. The Contractor shall notify the Engineer
of the source of his asphaltic material prior to
production of the asphaltic mixture and this source shall
not be changed during the course of the project except by
written permission of the Engineer.
Hydrated lime shall be added to the Asphalt mixture, as
per TxDot Item 264, as an additive to improve the quality
of the mixture.
M-30
7
Description. This item establishes the requirements for
c hydrated lime, quicklime and commercial lime slurry of
the type and grade considered suitable for use in the
r"` treatment of natural or processed materials or mixtures
for subgrade, subbase and base construction.
CAUTION: Use .of quicklime can be dangerous. Users
should become informed of the recommended precautions in
the handling, storage and use of quicklime.
Tunes. The various types and grades of lime and lime
slurry are defined and identified as follows:
a. Tube A. Hydrated Lime, a dry powdered material
consisting essentially of calcium hydroxide.
b. Tvn� e B. Commercial Lime Slurry-, a liquid mixture of
essentially hydrated lime solids and water in slurry
form.
C. Tune C. Quicklime, 'a dry material consisting
essentially of calcium oxide. It shall be furnished in
either of two grades which differ in sizing.
Grade DS, "pebble" quicklime of a gradation suitable for
either "Dry Placing" or for use in the preparation of a
slurry for "Wet Placing".
Grade S, finely graded quicklime for use in the
preparation of a slurry for. wet placing. (Note: Due to
the possibility of appreciable amounts of finely divided,
powdered quicklime being present in this.product, the use
of Type C, Grade S Quicklime is restricted to "Slurry
Placing" only. It is considered to be unsuitable for
"Dry Placing".)
Lime for stabilization purposes shall
be applied
as
provided for in the governing specifications, as a
dry
rmaterial
or as a mixture of lime solids
and water in
the.
1
form of lime slurry.
For dry application, Type A, Hydrated
Lime or Type
C,
Quicklime of Grade M only may
be used where
specifications permit.
For wet application, lime slurry may be delivered to the
job site as Type B, Commercial Lime Slurry or a lime
slurry may be prepared at the job site by using Type A
Hydrated Lime or Type C Quicklime as specified.
�.. The lime and lime slurry being furnished under the terms
! of this specification shall, in addition to all other
M-31
r
i
requirements, .also meet the following,
chemical and
physical requirements.
a. Chemical Composition:,— TYPE
A
Total "active" lime content,
B _
% by weight--------------- 90.0 min' 87.0
mine
(i.e., % by wt Ca(OH)2 +
by wt CaO, if present) -
Unhydrated lime content,
o by wt CaO--------------- 5.0 max
- 87.0 min
"Free Water" content,
% by wt H2O--------------- 5.O max
- -
b. Physical
(1)Wet sieve requirement, as
by wt residue:
Retained on No. 6 (3360 micron)
sieve:----------------- 0.2 max 0.2
max2 8.0 max3
Retained on No. 30 (590 micron)
sieve:----------------- 4.0 max 4.0
max2. -
(2)Dry sieve requirement, as
by wt residue:
Retained on a 1-inch (25 mm)
sieve:----------------- -
- 0.0
Retained on -a 3/4" (19 mm)
sieve:----------------- - -
10.0 max
Retained on a No. 100..
(150.micron) sieve:--- - -
Grade DS
80.0% min
Grade S -
No Limits
Note 1: No more than 5.O0-. by weight CaO (unhydrated
lime)
will be allowed in determining the total
"active" lime
content.
Note 2: In "solids content" of the slurry.
Note 3: The amount of total "active" lime
content, as
CaO, in the material retained on the No. 6
sieve must not
exceed 2.0 percent of the original Type C lime.
M-32
l
'I Type B, Commercial Lime Slurry or a slurry prepared at
the job site from Type A Hydrated Lime or Type C
FMI! Quicklime shall be furnished at or above the minimum "Dry
Solids" content as prescribed by the Engineer and must be
of a consistency that can be handled and uniformly
applied without difficulty. The slurry shall be free of
liquids other than water and any materials of a nature
injurious or objectionable for the purpose intended.
3. Tack Coat
The asphaltic material for tack coat shall meet the
requirements for Cut -Back Asphalt RC-2, or shall be a
Cut -Back Asphalt made by combining 50 to 70 percent by
volume of the asphaltic material as specified for the
type of paving mixture with 30 to 50 percent by volume of
gasoline and/or kerosene. If RC-2 Cut -Back Asphalt is
used, it may, upon instructions from the Engineer, be
diluted by addition of an approved grade of gasoline
and/or kerosene, not to exceed 15 percent by volume.
p- The paving mixture shall consist of a uniform mixture of
coarse aggregate, fine aggregate, lime and asphaltic/latex
material. 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
on the adjacent sieve, or vice versa. The final designated
gradations shall produce a relatively smooth line when
plotted on a 0.45 power semilogarithmic gradation chart when
tested in accordance with ASTM C-136.
Master Gradation Specifications
Mixture Type
City of Lubbock (C.O.L.)
Sieve Type "C" Type "D"
Size (Residential Traffic only)
Percent by Weight Passing Sieves
�..
1"
100
---
C
3/4"
98-100
---
1/2"
81-93
100
3/8"
65-85
85-100
i
No.4
43-63
50-70
No.8
33-45
35-47
No.16
22-34
23-35
No.30
13-27
14-29
�-
No.50
7-19
8-20
f
M-33
No.100 3-11 4-12
No.200 1-6 1-6
Bitumen percent 4.0 - 7.5 4.0 - 7.5
(of total mix)
If the Contractor or supplier wishes to use a material or
location not previously 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 Black Base and Hot Mix.
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, black base,
or hot mix, appropriate corrections will be required.
E. Tolerances
The Engineer will designate the exact grading of the
aggregate and asphalt 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
limitation of the master grading specified. The respective
tolerances, based on the percent by weight of the mixture,
are listed as follows: .
material al % By Wt . +
Aggregate passing No. 4 sieve
or larger 4 percent
Aggregate passing Nos. 8,16,30,
50 sieves 3 percent
Aggregate passing Nos. 100 & 200
sieves 2 percent
Bitumen
0.25 percent
M-34
r-
1
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 Engineer by more than the respective tolerance
specified above.
Thoroughfare Residential
Traffic Traffic
Min. Max. Min. Max.
Marshall Method No.
of compaction blows,
each end of specimen 75 50
Stability, Lbs. 1800 --- 1200 ---
Flow, units of 0.01 in 8 14 8 18
% Air Voids
Surfacing or Leveling 3 5 3 5
Voids in
Mineral Aggregate 13 --- 14 ---
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 Engineer, when tested
in accordance with these specifications and applicable
ASTM procedures.
Samples of the completed pavement shall be removed from
locations designated by the Engineer to enable him 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 removed from core holes at no cost to the
City. If the pavement is deficient in composition,
M-35
compaction, or thickness, satisfactory correction shall
be made as directed by the Engineer.
Tests on Marshall specimens shall be made twice daily or
as directed by the Engineer to retain job control. The
mixture shall comply with the requirements of Table (2)
above when tested in accordance with the Marshall method
procedures contained in Chapter III of the Asphalt
Institute'-s Manual Series No. 2 (MS-2), current addition.
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 Engineer is not due to 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 Engineer, an
apparent change in any material from that used in the
design mixtures, production will be discontinued until a
new design mixture is determined by trial mixes.
11. SILO STORAGE
A silo storage system may be used during the normal day's
operation. The mixture coming out of the silo storage must be
of equal quality and temperature to that coming out of the
mixing plant. Any operation that has tendency to segregate
the mixture or fails to maintain a thorough and uniform
mixture and temperature shall not be used. If ,any load of
mixture coming out of the silo storage system fails to meet
the asphalt specifications or gradation requirements, then the
total contents of the silo storage system shall be condemned.
12. BARRICADES AND SIGNS
Barricades shall be constructed of clean, sound lumber, shall
be of first-class workmanship, and all surfaces above ground
shall be painted with an approved brand of white paint to
secure thorough coverage and a uniform white color. In no
case shall less than two coats be used. The paint for
barricade stripes shall be reflective orange and reflective
white. All dimensions, striping, lighting, painting, coloring
and placement of barricades shall be in accordance with the
details and design as set forth in the Texas Manual on UNIFORM
TRAFFIC CONTROL DEVICES for Street and Highways, Part VI.
The Contractor shall maintain each barricade in a neat
acceptable condition and furnish replacements when necessary
or requested by the Engineer.
Each sign shall be displayed only for the specific purpose
prescribed for it. Before any detour or temporary route is
M-36
r
open to traffic all necessary Regulatory, Warning and Guide
signs shall be in place.
Signs required by temporary conditions or restrictions shall
be removed immediately when those conditions cease to exist or
the restrictions are withdrawn. Guide signs directing traffic
?'* to and on temporary routes or detours shall be removed when no
longer applicable.
Standardization is important with respect to design and
placement, and uniformity of application is equally important.
Identical conditions should always be marked with the same
type of sign, regardless of where those particular conditions
occur.
All signs that are to convey their message during hours of
darkness shall be reflectorized or illuminated. Signs for
daytime use only may be non-reflectorized but a fluorescent
background material will be used for increased daytime
visibility if requested by the Engineer.
Where there is serious interference from extraneous light
sources, and a reflectorized sign is not likely to be
4.
effective, an illuminated sign will be used.
Construction warning signs shall have a black legend on an
orange background and shall conform to the standards as to
size, shape and color as outlined in the Texas Manual on
UNIFORM TRAFFIC CONTROL DEVICES mentioned above.
Barricades, flares and signs are a necessity in the
construction involved in this contract. The provision of
these items by the Contractor should be considered in the bid
prices submitted, as no separate compensation will be made,
unless indicated otherwise in the plans or the proposal.
No work will be permitted on any project prior to installation
of barricades or other warning devices at the beginning and
end of the construction area.
13. PAINT
Paint used for ramp contrast in the construction of handicap
ramps shall conform to the requirements of TxDOT Department
Materials Specification: D-9-8200 (January, 1995).
I r"' M-37
i
r�
7
E�Wstfja . a 0MC112 : •
This item shall consist of Portland Cement concrete curb and
gutter or separate gutter as shown on the plans or as
directed by the Engineer, and shall be constructed of Class
A concrete. Included in the curb and gutter item is the
subgrade preparation and the filling and shaping of the area
C behind the curb.
Separate gutter sections will be placed only across
alleys and driveways presently in use or where definitely
planned for future property improvements. It shall be
the responsibility of the Contractor to contact the
property owner and determine the proper location of
driveways before curb and gutter is constructed. All
gutters across new or proposed driveways must meet the
requirements set forth in the City Sidewalk and Driveway
Regulations, Ordinance Number 1466 and amendments thereto
and gutters across existing driveways will be required to
conform to said regulations if no hardship to the
existing property improvements is involved. In any
event, all curb and gutter to be poured must have the
Engineer's approval as to driveway widths and location,
in addition to the section, and line and grade approval
before any pour is started on any curb and gutter unit.
Excavation for the curb and gutter shall be made with the
excavation of the entire street. The excavation shall be
done to the lines and grades set by the Engineer and in
such a manner as to require a maximum 1/2" (inch) of fill
to bring the subgrade to the correct elevation. Subgrade
that is undercut 1" (one inch) or more shall be brought
to the correct elevation by scarifying, wetting, disking,
blading, rolling and compacting to 95t Standard Proctor
Density (ASTM D-698) with pneumatic rolling to correct
elevation prior to setting forms. Before completion of
curb and gutter, all traffic signs and street name
markers found in the way of paving will immediately be
relocated behind the proposed curb and gutter by the
Contractor.
D-1
r
Forms for concrete curb and gutter shall be set to the
lines and grades established by the Engineer after the
subgrade has been prepared. The forms shall be held
together and in place in such a manner that they will not
move during the placing and working of the concrete. The
forms shall be cleaned and oiled prior to pouring
concrete. Face forms and construction joints (removable
metal plates) shall be set to hold the concrete for the
curb in place until it is to be finished.
Forms for radii shall be set in the same manner as the
straight forms except that no face form will be required
if a true section is obtained by other methods. The
radii forms shall be set in such a manner that the curve
will be true.
' • -11-f • f• ►,_ f• • f
Sufficient, concrete shall be placed to allow for
shrinkage and extra material for finishing, and the
concrete shall be floated and troweled to the approximate
section, and only after the concrete receives a partial
set shall the face forms be removed. The section shall
then be shaped to the true cross-section by the use of a
metal -screed which is shaped to the true cross-section.
A "mule" screed shall be used only to shape to true
cross-section when topping material is provided and
pushed along on the front edge of the mule.
Curb and gutter shall be constructed with an expansion
joint at the tangent point of each return at
intersections and at intervals of no more than forty (40)
feet between the intersections. Forty feet intervals may
be waived if curb and gutter machine is used. Expansion
joints shall be of the material hereinbefore specified.
Construction joints formed by removable metal plates
(templates) accurately shaped to the cross-section of the
curb and gutter shall be located at the mid -point of each
section between expansion joints or as directed by the
Engineer. Contraction joints shall be placed at ten foot
intervals. All joints shall be perpendicular to the
surface of the concrete and to the axis of the section.
A ten (10) foot metal "straight -edge" shall be used to
strike the flow line to grade, continuously along the
flow line of the gutter. This operation shall be
followed with a four (4) foot spirit level to assure the
D-2
F
1 continuous grade down the flow -line the length of the
gutter.
!I Curb and gutter shall be finished uniformly by wood
` troweling to an accurate cross-section. Extra water will
not be added for finishing. The final finish will be
rT accomplished with a brush, the last stroke being one from
`I the back of curb to the lip of gutter. Both sides of all
joints, the lip of gutter, and the back edge of the curb
r- shall be finished with a 1/4" radius edging tool before
the final brushing. Curves at the top and bottom of the
section shall present a uniform appearance without
"waves" in the face of the curb or "pockets" in the
r
gutter.
t
Concrete shall not be poured during sand storms.
Concrete shall be protected to maintain temperature of
not less than 50 degrees F. for five days after
placement. If aggregate and water are heated, they shall
not be heated above 90 degrees F. Concrete shall not be
placed when the ambient temperature is less than 40
degrees F. It shall be the responsibility of the
Contractor to anticipate as nearly as possible changes in
weather conditions which would affect the placement and
protection of the concrete, and be prepared to protect
freshly placed concrete when sudden changes in the
weather make such protection necessary.
6. Removing Forms
fi
Special care is required of the Contractor in his
removing of pins and of forms. Pins shall be pulled from
the ground to free forms. If hammering is found to be
,I
necessary, a light, one (1) pound hammer shall be used.
The Contractor shall not place forms or pins on newly
finished concrete. Loading and unloading of forms from a
truck shall be executed by two workmen. It is the duty
117
of the Contractor to remove any warped forms found in any
section of forms, before it is poured. When forms are
pointed out as defective, those forms shall then be
removed from the job site and not returned until they
r
have been inspected by the Engineer.
'I
7. Machine Laid Curb and Gutter
Class A concrete shall be used for machine laid curb and
gutter. The slump of the concrete shall be as directed
by the Engineer. Reinforcing steel, if required, shall
conform to Section 3 under Materials of Construction.
r
The curb and gutter shall be laid by an extrusion machine
approved by the Engineer. Immediately prior to placing
the curb and gutter, the previously approved foundation
shall be thoroughly cleaned.
D-3
t
r
The line for top of curb shall be maintained from a
guideline set by the Contractor from survey marks
established by the Engineer. Curb outline shall strictly
conform to the details shown on.the plans.
The approved mix shall be fed into the machine in such a
manner and at such consistency that the finished curb
will present a well compacted mass with a surface free
from voids and honeycombs and true to established shape,
line and grade.
.Additional surface finishing shall be performed
immediately after extrusion. Extra water will NOT be
added for finishing. Unless otherwise specified by the
Engineer, joints shall be constructed as follows:
Expansion joints shall be located at each end radius at
intersections and alley returns and at the beginning of
the pour, and dummy grooved joints shall be spaced at 10
foot intervals between the expansion joints.
All concrete work shall be covered with heavy water -proof
type paper to prevent loss of moisture and to prevent
direct sunlight from striking the concrete, as soon as it
has set sufficiently enough to prevent marking.
In lieu of this method of curing, the curb and gutter may
be cured by applying a liquid membrane coating to all
exposed surfaces, provided such material and method is
first approved by the Engineer.
* . 0 UMMI @W
After the forms are removed and the concrete has cured,
the Contractor shall fill the area behind the curb with
TOPSOIL ONLY (NO CALICHE) AND SHALL HAVE NO ROCKS LARGER
THAN 1". The.area between the sidewalk and the curb, or
property line and curb if no sidewalk exists, shall be
leveled and sloped toward the curb in a manner
satisfactory to the property owner and/or Engineer. Fill
should be done prior to placement of base materials.
No patching of any nature shall be allowed in repairing
any damage to curb and gutter which occurs during the
construction process of paving improvements in any unit
prior to the acceptance of said unit. Where damage
occurs, the section of curb and gutter or gutter
containing the damaged portion shall be removed to the
nearest joints and shall be replaced with new
construction, prior to surfacing of that section of
street.
D-4
rConcrete surface finish marred by vandals, rain or sand
during setting time shall be immediately repaired with an
approved epoxy material; all abused concrete surface,
along with structural damage and defective flow line
found at time of surfacing shall be handled as described
in sentence 2 above.
This item shall consist of Portland Cement concrete separate
gutter constructed in accordance with the typical curb and
gutter sections included in these specifications and at
locations as shown on the plans or as directed by the
Engineer.
KINRUMMIT-6 __ Fo __ _ W We M4
Care shall be taken to tie the (3) three horizontal #3
bars together and use chairs to hold them at a point 3"
above the bottom (Not rebar imbedded in the ground).
•; •� ��►�
This item shall be constructed of Class C concrete for
thoroughfare or collector street valley gutters and Class E
concrete for residential street valley gutters and consists
of the construction of an eight (8) inch concrete slab on
thoroughfare or collector streets or a (6) inch concrete
slab on residential streets reinforced with 4-#3 bars on one
and one-half (1-1/2) foot spacing for 5 foot wide valley
gutters,(Cross bars shall be #3 bars 4 1/2 feet long) or
with 6"x6" 6 gauge wire mesh. Fillet areas shall be
reinforced as shown on the plans and constructed to the
lines and grades as shown on the plans and as designated by
the Engineer. Details of construction are the same as for
curb and gutter where they can be directly applied.
.. -•. .ilill
! -- - •!
Care shall be taken to hold the steel in the center of
r- the slab, high chairs or precast concrete blocks shall be
D-5
located at.three (3) foot centers.- Lapping distance
shall be 40 diameters, and the lap shall be tied at three
'points with wire if steel bars are used.
D. REINFORCED ALLEY PAVING SLAB AND ALLEY RETURNS (CLASS E
CONCRETE)
Description
This item shall consist of reinforced concrete paving of
variable thickness (5" to 7-1/211) constructed in the
center 10 feet of alleys and shall be constructed of
Class E concrete. All alley paving and alley returns
shall,be constructed in accordance to the Alley Paving
Details.
Offily-TWIT, O•
Forms for alley slab shall be placed where necessary to
form the outside edge, of slab (where slab is not bordered
by concrete curb and gutter or other permanent
improvements such as building, docks, etc.)and where
necessary to form construction and expansion joints (See
"Alley Paving Details" on plans). On all edges, joints,
etc. to be formed, the forms shall extend the entire
depth of concrete.
Care shall be taken to securely hold the welded wire mesh
or rebar 3" above the bottom of the slab by use of high
chairs or pre -cast concrete blocks.
Concrete shall not be poured during sandstorms. Concrete
shall be protected to maintain temperature of not less
than 50 degrees F. for five (5) days after placement. If
aggregate and water are heated, they shall not be,heated
above 90 degrees F. Concrete shall not placed when the
ambient temperature is less than 40 degrees F. It shall
be the responsibility of the Contractor.to anticipate as
nearly as possible changes in weather conditions which
could effect the placement and protection of the
concrete, and to be prepared to protect freshly placed
concrete when sudden changes in the weather make such
protection necessary.
Concrete shall be deposited so as to conform roughly to
the finished cross-section. Sufficient concrete shall -be
placed to allow for shrinkage and extra material for
finishing. Extra water will NOT be added for finishing.
D-6
F111
'I The shape and flow line of the alley paving slab may be
established by the use of two (211) inch by four (411) inch
wood screeds,_ or other approved removable devices,
accurately staked to line and grade. If such devices are
used they shall be in place before the final finishing of
the subgrade and the subgrade shall be finished so that
the concrete slab will be of the proper depth. The
concrete shall be "struck off" to the true section and
finished smooth by floating and troweling. The final
�. finish shall be provided by brushing to provide a nonskid
surface for traffic. Particular care shall be taken in
the final troweling and finishing so that the finished
slab presents a smooth straight surface without waves in
�j the edge and without pockets in the flow line.
* . TOR - . V
All concrete work shall be covered with burlap or other
suitable material as soon as it has set sufficiently to
prevent marking and kept wet continuously for at least
(4) days. Care shall be taken to prevent mechanical
injury to concrete work during this period and until the
work is accepted. Any work damaged prior to acceptance
shall be repaired by the Contractor at his own expense
and to the satisfaction of the City Engineer.
The City Sanitation Department shall be notified of all
alley return and alley paying construction, and if
possible, the length of time said return and/or alley
shall be closed to traffic. The Contractor shall
properly flare and barricade alley returns and alleys
during the period of construction and as long afterward
as the Engineer may require for curing and achieving
strength. Before opening alley returns to traffic, the
Contractor shall properly fill and level by hand, (no
maintainer shall be used until full strength of concrete
is achieved), the adjacent approaches from the street and
alley. In all cases, no alley or alley return shall be
opened to traffic without the approval of the City
Engineer.
C-11• O• . 11.
Special care is required of the Contractor in his
removing of pins and moving of forms. Pins shall be
pulled from the ground to free forms. If hammering is
found to be necessary a light, one (1) pound hammer shall
rbe used. The Contractor shall not place forms or pins on
t newly finished concrete. Loading and unloading of forms
from a truck shall be executed by two workmen. It is the
duty of the Contractor to remove any warped forms found
in any section of forms, before it is poured. When forms
are pointed out as defective, those forms shall then be
r
Flo
r�-
D-7
removed from the job site and not returned until they
have been inspected by the Engineer.
7. Replacement of Damaged Concrete or Concrete Surface
,Only patching of very minor nature will be allowed in
,alley paving. Any substantial damage occurring to the
alley paving prior to the acceptance of the unit in which
the damage occurs will be remedied by removal and
replacement of the entire section or sections of alley
paving that has been damaged. Any slab removed to a
joint other than a doweled expansion joint will be
replaced using joint section B-B in the Special Detail
Sheets of these specifications. Extreme care shall be
taken by the Contractor during "Setting -Up" period to
prevent vandals, sand or rain from marring the surface
finish to avoid being handled as described in sentence 2,
above.
This item shall consist of reinforced concrete slab (611)
inches thick and may be placed on asphalt surface on caliche
base, or on asphalt surface on concrete base. Median slab
shall be doweled as shown on the plans. Details of concrete
placement, finishing, and curing shall be used where
applicable.
This item shall consist of the construction of Class F
reinforced concrete as shown on Concrete Railroad Crossing
Details. (File #2-B-92 [21)
2. Reinforcing Steel Bars to be Used
Reinforcing steel to be used on this project shall
conform to ASTM A-432 and shall be deformed to ASTM A-305
requirements.
Care shall be taken to hold the #4 bars above the bottom
of the foundation slab and above the railroad ties as
shown on the plans. In the top slab the vertical and
horizontal bars shall be securely tied with wire.
D-8
F
;I P
This item shall consist of a concrete slab (511) thick and
containing wire mesh reinforcing which shall conform to
ASTM A-185, or approved fiber reinforcement.
F. •+ MERU 0 *0 UNIT$ u ► •�
This item shall consist of a pavement of portland cement
concrete, with reinforcement as shown on plans, constructed
as herein specified on the prepared subgrade and one inch of
sand cushion or other base course in conformity with the
thickness and typical cross sections shown on plans and to
the lines and grades established by the Engineer. Concrete
shall be considered of satisfactory quality provided it is
made (a) of materials accepted for the job, (b) in the
proportions established by the Engineer and (c) Mixed,
placed, finished and cured in accordance with the
requirements herein specified.
The cement shall be Type I or Type III standard brand of
Portland cement. If the use of high early strength
cement is not specified, and the Contractor desires to
use it, he shall obtain written permission of the
Engineer and shall assume all additional costs incurred
by the use of such cement. Type I and Type III cement
shall conform to the requirements of ASTM C-150. When
Type III cement is used, the average strength at the age
of 7 days shall be higher than that attained at 3 days.
Either the tensile or the compression tests may be used
for either type cement. In addition to the requirements
of ASTM C-150, the specific surface area of Type I cement
shall not exceed 2,000 square centimeters per gram as
measured by the Wagner Turbidimeter in accordance with
Test Method Tex-310-D.
Unless otherwise provided in the plans or special
provisions, approved types of admixtures to minimize
segregation, to improve workability, or to reduce the
amount of mixing water maybe used in the rate of dosage
specified by the Engineer. Admixtures shall not be used
to replace cement. Admixtures shall comply with all the
D-9
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J.
requirements and be measured and dispensed in accordance
with TxDOT Item 437.
Coarse aggregate shall consist of durable particles of
crushed limestone (Brownwood Type) of reasonably uniform
quality throughout, free from injurious amounts of salt,
alkali, vegetable matter or other objectionable material,
either free or as an adherent coating on the aggregate.
It shall not contain more than 0.25 percent by weight of
clay lumps, nor more than 1.0 percent by weight of shale
nor more than 5.0 percent by weight of laminated and/or
friable particles when tested in accordance with Test
Method Tex-413-A..
Coarse aggregate shall have a wear of not more than 45
percent when tested according to Test Method Tex-410-A
and when tested by standard laboratory methods shall meet
the following grading requirements:
Retained on 1-3/411 sieve....... .............0°s
Retained on,1-1/2" sieve................0 to 5 0
Retained on 3/4" sieve.................30 to 65%8
Retained on 3/8" sieve.................70 to 9016
Retained on No. 4 sieve...... .......95 to 1000
Loss by Decantation Test Method Tex-406-A .,.1.0t Maximum
All aggregate shall be handled and stored in such a
manner as to prevent size segregation and contamination
by foreign substances. When segregation is apparent, the
aggregate shall be remixed. At the time of its use, the
aggregate shall be free from frozen material. Aggregate
that contains more than 0.5 percent free moisture by
weight shall be stockpiled for at least 24 hours prior to
use.
Adequate storage facilities shall be provided for all
approved materials. The intermixing of nonapproved
materials with approved materials either in stockpiles or
in bins will not be permitted. Aggregates from different
sources shall be stored in different stockpiles unless
otherwise approved by the Engineer.
Aggregates shall be stockpiled in such a manner to
prevent segregation, and maintained as nearly as possible
in a uniform condition of moisture.
D-10
I
Each aggregate stockpile shall be reworked with suitable
equipment as required by the Engineer to remix the
material to provide uniformity of the stockpile.
!^ Fine aggregate shall consist of sand or a combination of
sands, and shall be composed of clean, hard, durable,
t.
uncoated grains. Unless otherwise shown on plans, the
acid insoluble residue of the fine aggregate shall be not
less than 28 percent by weight when tested in accordance
with Test Method Tex-612-J.
- -•• -•_ VU-;= • W U "WX73-
Fine aggregate shall be free from injurious amounts of
salt, alkali or vegetable matter. It shall not contain
more than 0.5 percent by weight of clay lumps. When
subjected to the color test for organic impurities, Test
Method Tex-408-A, the fine aggregate shall not show a
color darker than the standard.
Unless specified otherwise, fine
aggregate shall meet the
following grading requirements:
Retained
on
3/8" sieve.....................0%
Retained
on
No.4 sieve................0 to 516
Retained
on
No. 8 sieve .............. 0.to 2016-
Retained
on
No. 16 sieve ............ 15 to 30%
Retained
on
No. 30 sieve ............ 35 to 75%
Retained
on
No. 50 sieve ............ 70 to 9016
Retained
on
No. 100 sieve .......... 90 to 10016
Retained
on
No. 200 sieve .......... 97 to 100%
Fine aggregate will be subjected to the Sand Equivalent
Test (Test Method Tex-203-F). The sand equivalent value
shall not be less than 80, or less than the value shown
on the plans, whichever is greater.
91WHOT-21",-
Mineral filler shall consist of clean stone dust, clean
crushed sand, clean crushed shell or other approved inert
material. When tested in accordance with Test Method
Tex-401-A, it shall meet the following requirements:
Retained on No. 30 sieve........................0%
D-11
Retained on No. 200 sieve.._...............0 to 350
At the time of its use the
from frozen material, and
material will be rejected.
mineral filler shall be free
aggregate containing foreign
Water for use in concrete and for curing shall be free
from oil, acids, organic matter or other deleterious
substances and shall not contain more than 1,000 parts
per million of chlorides as CL nor more than 1,000 parts
per million of sulfates as 5O4.
Water from municipal supplies approved by the State
Health Department will not require testing, but water
from other sources will be sampled and tested before use.
Test procedure shall be in accordance with AASHTO T 26.
MR 141-EM-M r•.-
Steel bar dowels, if used in accordance with provisions
of project plans, shall be of the size and type indicated
on plans and shall be open-hearth, basic oxygen or
electric -furnace steel conforming to the mechanical
properties specified for grade 60 in ASTM A-615. The
free end of dowel bars shall be smooth and free of
shearing burrs.
Unless otherwise shown on the plans, steel reinforcing.
bars as required including the tie bars shall be open-
hearth, basic oxygen or electric -furnace new billet steel
of Grade 60 for concrete reinforcement. Bars that
require bending shall be Grade 40 conforming to
requirements of ASTM A-615.
High yield reinforcing steel shall be either(l) open-
hearth, basic oxygen or electric -furnace new billet steel
conforming to the requirements of ASTM A-615 Grade 60 or
(2) rail steel bars for concrete reinforcement,
conforming to the requirements of ASTM A-616 Grade 60
(Bars produced by piling method will not be accepted).
Where prefabricated wire mats are specified or permitted,
the wire shall be cold worked steel wire conforming to
the requirements of ASTM A-496, except that steel shall
be made by open-hearth, electric -furnace, or basic oxygen
processes. The prefabricated wire mats shall conform to
the requirements of ASTM A-497. Mats that have been bent
or wires dislocated or parted during shipping or project
handling shall be realigned to within one-half inch of
D-12
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the original horizontal plane of the mat. Mats with any
portion of the wires out of vertical alignment more than
one-half inch after realignment and/or wires.dislocated
or mutilated so that, in the opinion of the Engineer,
they do not represent the original mat, shall be
rejected. The mats may be clamped or wired so that the
mats will retain the horizontal and vertical alignment as
specified by the plans or as approved by the Engineer.
Deformed wire may be used for tie bars and load transfer
bars that require bending.
When fabricated steel bar or rod mats are specified, the
mats shall meet the requirements of ASTM A-184.
All concrete placed for pavement shall be consolidated by
approved mechanical vibrators designed to vibrate the
concrete internally. The internal type will be used for
full -depth placement. Vibratory members shall extend
across the pavement practically to, but shall not come in
contact with the side forms. Mechanically operated
vibrators shall be operated in such a manner as to not
interfere with the transverse or longitudinal joints.
Separate vibratory units shall be operated at
sufficiently close intervals to provide uniform vibration
and consolidation to the entire width of the pavement.
The frequency in air of the internal spud type vibratory
units shall be not less than 8,000 cycles per minute and
not less than 5,000 cycles per minute for tube types and
the method of operation shall be as directed by the
Engineer. The Contractor shall have a satisfactory
tachometer available for checking the vibratory elements.
The pavement vibrators shall not be used to level or
spread the concrete but shall be used only for purposes
of consolidation. The vibrators will not be operated
where the surface of the concrete, as spread, is below
the elevation of the finished surface of the pavement,
except for the first lift of concrete where the double
strike off method of placement is employed, and the
vibrators shall not be operated for more than 15 seconds
while the machine upon which they are installed is
standing still.
Approved hand manipulated mechanical vibrators shall be
furnished in the number required for provision of proper
i consolidation of the concrete along forms, at joints and
in areas not covered by mechanically controlled
vibrators. These vibrators shall be sufficiently rigid
to insure control of the operation position of the
vibrating head.
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D-13
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6
Complete and satisfactory consolidation of the concrete
pavement is a most important requirement of this
specification. Cores taken shall be carefully examined
for voids, honeycombing or other evidence of incomplete
consolidation. If such evidence is present, changes in
the consolidation procedures and/or equipment will be
made to insure satisfactory consolidation.
Machine -Finishing. All concrete pavement shall be
finished mechanically with approved power -driven
machines, except as herein provided. Hand -finishing will
be permitted on the transition from a crowned section to
a superelevated section without crown or curves, and on
straight line superelevation sections less than 300 feet
in length. Hand -finishing will also be permitted on that
portion of a -widened pavement outside the normal pavement
width, on sections where the pavement width is not
uniform, or required monolithic widths are greater than
that of available finishing machines.
Machine -finishing of pavement shall include the use of
power -driven spreaders, power -driven vibrators, power -
driven transverse strike -off, and screed, or such
alternate equipment -as may be substituted and approved by
the Engineer.
All concrete shall be consolidated by a mechanical
vibrator. As soon as the concrete has been spread
between the forms, the approved mechanical_ vibrator shall
be operated to consolidate the concrete and remove all
voids. Hand -manipulated vibrators shall be used for
areas not covered by the mechanical vibratory unit.
The transverse finishing machine shall first be operated
to compact and finish the pavement to the required
section and grade, without surface voids. The machine
shall be operated over each area as many times and at
such intervals as directed. At least two trips will be
required and the'last trip over a given area shall be a
continuous run of not less than 40 feet. After
completion of finishing with the transverse finishing
machine a transverse drag float may be used.
The consistency of the concrete as placed should allow
the completion of all finishing operations without the
addition of water to the surface. When field conditions
are such that additional moisture is needed for the final
concrete surface finishing operation, the required water
shall be applied to the surface by fog spray only and
shall be held to a minimum.
D-l4
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l: After finishing is4complete and the concrete still
workable, the surface shall be tested for trueness with
an approved 10-foot steel straightedge. The straightedge
shall be operated from the side of the pavement, placed
parallel to the pavement centerline and passed across the
slab to reveal any high spots or depression. The
r" straightedge shall be advanced along the pavement in
successive stages of not more than one-half its length.
Practically perfect contact of the straightedge with the
r- surface will be required, and the pavement shall be
leveled to this condition, in order to insure conformity
with the surface test required below, after the pavement
has fully hardened. Any correction of the surface
required shall be accomplished by adding concrete if
required and by operating the longitudinal float over the
area. The surface test with the straightedge shall then
be repeated.
For one -lane pavement placement and uniform widening, the
equipment for machine -finishing of concrete pavement
shall be as directed by the Engineer but shall not exceed
the requirements of these specifications.
After completion of the straightedge operation, as soon
as construction operations permit, texture shall be
applied with 1/8-inch wide metal tines with clear spacing
between the tines being not less than 1/4 inch nor more
than 1/2 inch. If approved by the Engineer, other
equipment and methods may be used, provided that a
surface texture meeting the specified requirements is
obtained. The texture shall be applied transversely. It
is the intent that the average texture depth resulting
from the number of tests directed by the Engineer be not
C
less than 0.060 inch with a minimum texture depth of
0.050 inch for any one test when tested in accordance
with Test Method Tex-436-A. Should the texture depth
fall below that intended, the finishing procedures shall
be revised to produce the desired texture.
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12. Proportioning of Concrete
Concrete shall be composed of Portland cement, fine
aggregate, coarse aggregate, mineral filler and/or
admixture if used and water, mixed in proportions as
approved by the Engineer in the mix design as submitted
by a commercial laboratory and in the manner set forth in
this specification. On the basis of job and laboratory
investigations of the proposed materials, the Engineer
will fix the proportions by weight of water, coarse
aggregate, fine aggregate, cement, admixture and mineral
filler where required, in order to produce concrete of
the specified strength and workability.
13. Concrete Strength
The concrete mix will be designed with the intention of
producing a minimum average flexural strength (Modulus of
rupture).of 600 pounds per square inch and compressive
strength of 3000 psi at 7 days and/or a 28 day
compressive strength of 3,6OO pounds per square inch.
The coarse aggregate factor (dry,.loose volume of coarse
aggregate per unit volume of.concrete) shall not exceed
0.85. Unless otherwise shown on plans the concrete shall
contain not less than six sacks of cement per cubic yard
of concrete. The water -cement ratio (net gallons of
water per sack of 94 pound cement) shall not exceed 6.0
gallon/sack. Concrete specimens shall be prepared, cured
and tested as outlined in TxDOT Bulletin C-11.
Concrete shallbeuniformly plastic, cohesive and
workable. Workable concrete is defined as concrete which
can be placed without honeycomb and without voids in the
surface of the pavement. Workability shall be obtained
without producing a condition such that free water
appears on the surface of the slab when being finished as
specified. Where water appears on the surface of the
concrete after finishing and this condition cannot be
corrected by reasonable adjustment in the batch design,
the bleeding will be immediately corrected by one of the
following measures or a combination of.two.or more of the
following listed measures:
a. Redesign of the batch
b. Addition of mineral filler to fine aggregate
C. Increase of cement content
In the event that the measures taken do not eliminate the
bleeding immediately, concrete placement operations will
be suspended, as directed by the Engineer, and will `
remain suspended, until such time as additional trial
mixes demonstrate that a non -bleeding batch design has
been achieved. Failing to achieve a satisfactory
laboratory batch design the Contractor will be required
to use different materials and to submit samples thereof
for additional trial mixes and pilot beams as specified
in TxDOT Bulletin C-11. —
The mix will be designed with the intention of producing
concrete which will have a slump of 1-1/2 inches when
tested in accordance with TxDOT Bulletin C-11. The slump
shall"not be less than 1 inch nor more than 3 inches.
D-16
Pm
15. Mix Desian
Prior to the .beginning of the concrete placement, and
thereafter before any change in source or characteristics
of any of the ingredients except mineral filler,
sufficient compression tests using various quantities of
cement and aggregates proposed for use shall be supplied
the Engineer for consideration.
*' Mixes will be designed and made in sufficient number to
represent a wide range of water -cement ratios. These
mixes shall comply with the requirements herein
prescribed for workability. From these preliminary tests
the water -cement ratio required to produce concrete of
the specified strength will be selected by the Engineer.
The Contractor may at any time present in writing a
suggested mix design and the Engineer will make the tests
necessary to determine its acceptability under these
specification requirements.
For mixing the concrete to be used in making the
preliminary test specimens, the Contractor shall furnish
and operate the mixer approved for use on this project.
A minimum one cubic yard batch shall be mixed or a batch
of sufficient size to afford proper mixing, whichever is
the greater. In lieu of the above mixer and procedure,
the Contractor may furnish a portable mixer of sufficient
rated capacity to mix a minimum three -sack batch; in
which case, the batch mixed for the preliminary test
shall not be less than the rated capacity of the mixer
furnished.
No additional compensation will be allowed for equipment,
materials or labor involved in making preliminary test
specimens.
After the
mix proportions
and water -cement ratio required
C
to produce
concrete of the
specified strength have been
determined,
placing of the
concrete may be started.
Type I cement
shall have a
specified surface area within
a range of
1,600 to 1,900
square centimeters per gram. A
change in
the specific surface
of the cement of more than
100 square
centimeters per
gram may require a new mix
design.
Rolling and sprinkling shall be performed when and to the
extent directed, and the roadbed shall be completed to or
above the plane of the typical sections shown on the
7
D-17
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plans and the lines and grades established by the
Engineer.
Drainage of the roadbed shall be maintained at all times.
Sealed or treated subgrade cut in the preparation of the
subgrade or setting of pavement forms shall be resealed
or the subgrade restored to the original conditions as
directed by the Engineer. See Section D-2.
The subgrade shall be maintained in a smooth, compacted
condition in conformity with the required section and
established grade until the pavement is placed and shall
be kept thoroughly wetted down sufficiently in advance of
placing any pavement to insure its being in a firm and
moist condition for at least 2 inches below the prepared
surface. Sufficient subgrade shall always be prepared in
advance to insure satisfactory prosecution of the work.
No equipment or hauling shall be permitted on the
prepared subgrade, except by special permission of the
Engineer, which will be granted only in exceptional cases
and only where suitable protection in the form of two-ply
timber mats or other approved material is provided.
The subgrade under the forms shall be firm and cut true
to grade so that each form section when placed will be
firmly in contact for its whole length and base.width,
and exactly at the established grade. Forms shall be
staked with at least three pins for each 10-foot section.
A pin shall be placed at each side of every joint. Form
sections shall be tightly joined and keyed to prevent
relative displacement. Forms shall be cleaned and oiled
each time they are used.
Forms shall be set for a sufficient distance in advance
of the point where concrete is being placed to permit a
finished and approved subgrade length of not less than
300 feet ahead of the mixing. Conformity of the grade
and alignment of forms shall be checked immediately prior
to placing concrete, and all necessary corrections made
by the Contractor. Where any forms have been disturbed
or any subgrade becomes unstable, the forms shall -be
reset and rechecked. In exceptional cases, the Engineer
may require stakes driven to the grade of the bottom of
the forms. Sufficient stability of the forms to support
the equipment operated thereon and to withstand its
vibration without springing or settlement shall be
required. If forms settle and/or.deflect over 1/8 inch
under finishing operations, paving operations shall be
stopped and the forms shall be reset to line and grade.
Forms shall remain in place for not less than 12 hours
after the concrete has been placed. They shall be —
D-18
carefully removed in such a manner that little or no
damage will be done to the edge of the pavement. Any
'.. damage resulting from this operation shall be immediately
repaired. After the forms have been removed, the ends of
all joints shall be cleaned, and any honeycombed areas
pointed up with approved mortar. Immediately after
r pointing is completed, the form trench, if used, shall be
filled with earth from the shoulders in such a manner as
to shed water from rainfall or curing away from the edge
r- of the pavement. On completion of the required curing,
the subgrade or shoulders adjacent to the pavement shall
be graded in a condition to maintain drainage.
Allowable grade revisions shall in no way affect the
t governing finishing and surface requirements of the
completed pavement.
All grade revisions shall be established by the Engineer.
No additional payment over the contract unit price will
be made for any pavement of a thickness exceeding that
required on the plans as a result of adjustment of the
forms.
1. Mixing
` The aggregates, mineral filler if required,.cement and
water shall be measured separately, introduced into the
mixer, and mixed for a period of not less than 50 seconds
nor more than 90 seconds, measured from the time the last
aggregate enters the drum to the time discharge of the
concrete begins. The required water shall be introduced
into the mixing drum during the first 15 seconds of
mixing. The entire contents of the drum shall be
discharged before any materials of the succeeding batch
.� are introduced.
The Engineer may increase the minimum mixing time to that
necessary to produce thoroughly mixed concrete based on
inspection or appropriate uniformity tests. The mixing
time may be varied at any necessary to produce
acceptable concrete.
If Ready -Mix concrete is used, the concrete shall be
discharged into the specified hauling equipment and
delivered to the road site. If truck agitators are used,
the concrete shall be continuously agitated at not less
than one nor more than six rpm as directed by the
Engineer.
The initial batch of concrete mixed after each time the
mixer is washed out shall be enriched by additional
F.
D-19
i
mortar.. Theadditionalmortar shall be one sack of
cement and three parts of sand.
2. Placing
Any concrete not placed as herein prescribed within 30
minutes after mixing shall be rejected and disposed of as
directed except as.provided otherwise herein. Except by
specific written authorization of the Engineer, concrete
shall not be placed when the temperature is below 400F,
the temperature being taken in the shade and away from
artificial heat.
When such permission is granted, the Contractor shall
.furnish an approved enclosure, such as canvas -covered
framework, to enclose and protect all pavement so placed,
and shall maintain the temperature of the air surrounding
the concrete at not less than 50OF for not less than 5
days. When concrete is being placed in cold weather,
other than under the conditions stated above, the
Contractor shall have available a sufficient supply of an
approved covering material to immediately protect
concrete if the air temperature falls to 320F, or below,
before concrete has been placed 4 hours. Such protection
shall remain in place during the period the temperature
continues below 320F or for a period of not more than 5
days. Neither salt nor other chemical admixtures shall
be added to the concrete to prevent freezing. The
Contractor shall be responsible for the quality and
strength of concrete under cold weather conditions and
any concrete damage by freezing shall be removed and
replaced at his expense. Concrete shall not be placed
before sunrise and shall not be placed later than will
permit the finishing of the pavement'during sufficient
natural light.
Concrete shall be,placed only on approved subgrade or
sub -base, and unless otherwise indicated on plans, the
full width of the pavement shall be constructed
monolithically. The concrete shall be deposited on the
subgrade or sub -base in such manner as to require as
little rehandling as possible. Where hand spreading is
necessary, concrete shall be distributed to the required
depth by use of shovels. The use of rakes will not be
permitted. Workmen will not be permitted to walk in the
concrete with any earth or foreign material on their
boots or shoes. The placing of concrete shall be rapid
and continuous.
Concrete shall be distributed to such depth that when
consolidated and finished, the slab thickness required by
plans will be obtained at all points and the surface
shall not, at any point,.be below the established grade.
Special care shall be exercised -in placing and spreading —
D-20
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concrete against forms and at all joints to prevent the
forming of honeycombs and voids.
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If in the opinion of the Engineer, the temperature, wind
and/or humidity conditions are such that the quality of
the concrete will not be adversely affected, the
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specified placing time may be extended to a maximum of 45
minutes.
3. Reinforcing Steel
All reinforcing steel, including steel wire fabric
r.
reinforcement, tie bars, and dowel bars shall be
accurately placed and secured in position in accordance
with details shown on plans. Reinforcing bars shall be
securely wired together at alternate intersections,
following a pattern approved by the Engineer, and at all
splices, and shall be securely wired to each dowel
intersected. When wire fabric is used, it shall be
securely wired together at all splices and to each dowel
intersected. Tie bars shall be installed in the required
position by the method and device shown on plans or by
approved method and device equivalent thereto.
Tightly adhered scale or rust which resists removal by
vigorous wire brushing need not be removed except that
excessive loss of section to the reinforcement due to
rust shall be cause for rejection. Excessive loss of
section shall be defined as loss of section to the extent
that the reinforcement will no longer meet the physical
requirements for the size and grade of steel specified.
Where plans require an assembly of parts at pavement
joints, the assembly shall be completed, placed at
f required location and elevation, and all parts rigidly
secured in required position by the method and devices
" shown on plans. Dowel bars shall be accurately installed
in joint assemblies in accordance with plans, each
parallel to the pavement surface and to the center line
of the pavement, and shall be rigidly secured in required
position by such means (as shown on plans) that will
prevent their displacement during placing and finishing
of the concrete.
FOR When the placing of concrete is stopped, a bulkhead of
sufficient cross sectional area to prevent deflection,
accurately notched to receive the load transmission
devices or dowels if required, and shaped accurately to
the cross section of the pavement shall be provided and
installed as a back-up for the joint filler and rigidly
.secured in required position to permit accurate finishing
of the concrete up to the joint. After concrete has been
D-21
finished to the joint, formation of the.joint seal space
and finishing of the joint shall be executed. The back-
up bulkhead shall remain in place until immediately prior
to the time when concrete placing is resumed, when it
shall be carefully removed in such manner that no element
of the joint assembly will be disturbed. The exposed
portion of the joint assembly shall be free of adherent
concrete, dirt or other material at the time placing of
concrete is resumed.
If necessary for proper installation of joint sealer,
excessive spalling of the joint groove shall be repaired
to the satisfaction of the Engineer in the manner which
he prescribes.
Careful workmanship shall be exercised in.the
construction of all joints to insure that the concrete -
sections are completely separated.by an open joint or by
the joint materials and to insure that the joints will be
true to the outline indicated.
.-..-*-. M 0.*- •
Weakened plane joints shall consist of transverse
contraction joints and longitudinal joints and shall be
sawed as specified on the plans or as directed by the
Engineer. When the joints are sawed, the saw shall be
power driven, shall be manufactured especially for the
purpose of sawing concrete, and shall be capable of,
performing the work. Saw blades shall be designed to
make a clean smooth cut having a width and depth of cut
as detailed on the plans. Tracks adequately anchored,
chalk, string line or other approved methods shall be
used to provide true alignment of the joints. The
concrete saw shall be maintained in good operating
condition and the Contractor shall keep a stand-by power
saw on the project at all times when concrete operations
are under way.
If membrane curing is used, the portion of the seal which
has been disturbed by sawing,operations shall be restored
by the Contractor by spraying the area with additional
curing seal.
Transverse contraction joints shall be formed.or sawed
joints perpendicular to the centerline .and surface of the
pavement. Where sawed joints are used, contraction
joints at approximately 10 to 15-foot intervals shall be
sawed as soon as sawing can be accomplished without
damage to the pavement and before 12 hours after the
concrete has been placed, the exact time to be approved
by the Engineer. The remaining contraction joints shall
D-22
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be sawed in a uniform pattern as directed by the
Engineer, and they shall be completed before uncontrolled
cracking of the pavement takes place. AU joints shall
Cbe completed before permitting traffic.to use the
pavement.
7. Longitudinal Joints
Longitudinal joints shall be sawed within two days after
construction' of the pavement. Sawing shall not cause
damage to the pavement and the grooves shall be cut with
a minimum of spalling. No traffic (including
construction traffic) shall be permitted on the pavement
until the longitudinal joint is cut.-
S.
After the joints in the hardened concrete have been
repaired (if necessary) and the sides of the joint power
brushed or sandblasted then blown out with compressed air
to the satisfaction of the Engineer, the approved backer
rod shall be wheeled -in to the proper depth as
recommended by the manufacturer and the remainder of the
joint will be filled with the approved sealant to the
dimensions shown on the plans. After the sealant is
installed it shall effectively seal the joints against
water, dirt and stones throughout repeated cycles of
expansion and contraction.
9.Asphalt Board
Premolded materials, wherever used, shall be anchored to
the concrete on one side of the joint by means of copper
wire or nails not lighter than No. 12 B&S gage. Such
anchorage shall be sufficient to overcome the tendency of
the material to fall out of the joint.
All concrete pavement shall be consolidated by a
{ mechanicalvibrator. As soon as the concrete has been
spread between the forms; the approved mechanical
vibrator shall be operated to consolidate the concrete
r" and remove all voids. Hand manipulated vibrators shall
be used for areas not covered by the mechanical vibratory
unit.
After finishing is completed and the concrete still
workable, the surface shall be tested for trueness with
an approved 10-foot steel straightedge. The straightedge
shall be operated from the side of the pavement, placed
- parallel to the pavement centering and passed across the
slab to reveal any high spots or depressions. The
straightedge shall be advanced along the pavement in
D-23
r
f
successive stages of not more than one-half its length.
Practically perfect contact of the straightedge with the
surface will be.required, and the pavement shall be
leveled to this condition, in order to insure.conformity
with the surface test required after the pavement has
fully hardened. Any correction of the surface required
shall be accomplished by adding concrete if required and
by operating the longitudinal float over the area. The
surface test with the straightedge shall then be
repeated. Extra water will not be added for finishing.
After completion of the straightedge operation, the first
pass of the burlap drag shall be made as soon as
construction operations permit and before the water sheen
has disappeared from the surface. This shall be followed
by as many passes as required to produce the desired
texture depth. There shall be no unnecessary delays
between passes. The drag shall be wet during use and
maintained clean and free from encrusted mortar. It is
the intent that the average texture depth resulting from
the number of tests directed by the Engineer be not less
than 0.025 inches with a minimum texture depth of 0.020
inches for any one test. Should the texture depth fall
below that intended, the finishing procedures shall be
revised to produce the desired texture.
The Contractor shall have available at all times hand
brooms with stiff bristles for the purpose of providing
textures when the pavement surface is in such a condition
that the burlap drag or other methods being employed will
not provide the desired texture.
After completion of dragging and about the time the
concrete becomes hard; the edge of the slab and joints
shall be carefully finished as directed by the Engineer,
and the pavement shall be left smooth and true to line.
11. Protection of Pavement and Opening to Traffic
The Contractor shall erect and maintain the barricades
required by plans and such other standard and approved
devices as will exclude public traffic and traffic of his
employees and agents from the newly -placed pavement for `
the periods of time and at locations hereinafter —
prescribed by the Engineer. Portions of the roadway, or
crossings of the roadbed required to be maintained open
for use by traffic, shall not be obstructed by the above
required barricades.
The pavement shall be closed to all traffic, including
vehicles of the Contractor, until the concrete is at
least 7 days old. This period of closure to all traffic
may be extended if, in the opinion of the Engineer,
D-24
p� weather or other conditions make it advisable to provide
an extension of the time of protection.
At the end of the 7 day period and as long thereafter as
ordered by the Engineer, and if so desired by the
Contractor, the pavement may be opened for use by
vehicles of the Contractor provided the gross weight
(vehicle plus load) of such vehicles does not exceed
14,000 pounds. Such opening, however shall in no manner
relieve the Contractor from his responsibilities for the
work. On those sections of the pavement thus opened to
traffic, all joints shall first be sealed, the pavement
cleaned and earth placed against the pavement edges
before permitting vehicles thereon.
After the concrete in any section is 14 days old, or as
long thereafter as ordered by the Engineer, such section
of pavement may be opened to all traffic as required by
plans or when so directed by the Engineer. On those
sections of the pavement thus opened to traffic, all
joints shall first be sealed, the pavement cleaned, earth
placed against the pavement edges and all other work
performed as required for the safety of traffic.
When High Early Strength Concrete, resulting from the use
of Type III cement as required by plans or special
provisions, is used, the pavement may be opened to all
traffic after the concrete is 7 days old, or as long
thereafter as ordered by the Engineer, subject to the
same provisions governing the opening after 14 days as
above prescribed.
Where the Contractor desires to move any equipment not
licensed for operating on public streets, on or across
any pavement opened to traffic, he shall protect the
pavement from all damage by means of two-ply timber mats
of 2 inch stock or runways of heavier material laid on a
layer of earth, all as approved by the Engineer.
The Engineer may require the opening of pavement to
traffic prior to the minimum time specified above under
,�. conditions of emergency which in his opinion require such
action in the interest of the public. In no case shall
the Engineer order opening of the pavement to traffic
within less than 72 hours after the last concrete in the
section is placed. The Contractor shall remove all
obstructing materials, place earth against the pavement
edges and perform other work involved in providing for
the safety of traffic as required by the Engineer in
ordering emergency opening. Orders for emergency opening
of the pavement to traffic will be issued by the Engineer
in writing.
r
MM D-25
• ••' CAI! •\I
I M •'
Sub -grade preparation shall include the removal, haul and
disposal of all obstructions, including existing curbs,
gutters, paving materials, base materials, concrete slabs
and other obstructions shown on the plans or as designated
by the Engineer and all scarifying, pulverizing, wetting,
disking, blading and rolling with compactors to a depth of
at least 611 on residential streets and to a depth of 12" on
major thoroughfares and collector streets. Compactors will
be used from the bottom to the finished sub -grade elevation
to compact the subgrade to 9596 Standard Proctor Density
(ASTM D-698) in conformity to the line, grade and sections
as shown on the plans or as established by the Engineer.
After the obstructions have been removed, or in conjunction
with such removal, the street bed and/or alley return
foundation and/or sidewalk foundation shall be excavated and
shaped in conformity with the typical section and to the
line and grades as shown on the plans or as established by
the Engineer.
All -unstable or otherwise objectionable material shall be
removed from the subgrade and replaced with approved
material. The excavation shall be done in such a manner as
to require a minimum of fill to bring the subgrade to the
correct elevation. When the subgrade is too low as
initially excavated, the Contractor shall place additional
soil or caliche in layers not exceeding four (411) inches and
compact each layer by moistening and rolling.
The utilization of a scraper for excavation and shaping of
subgrade and base -is permitted with exceptions which are
determined by depths of utility lines. Unless otherwise
specified by the Engineer, the scraper shall not iexceed 23
cubic yards capacity as rated loaded flush by the
manufacturer.
-TII•- ...
Subgrade shall be compacted to 95%
(ASTM D-698) for all improvements
collector street paving. Subgrade
100% Standard Proctor Density for
street paving.
Standard Proctor Density
except.thoroughfare and
shall be compacted to
thoroughfare and collector
D-26
tl
4 d
Density tests (ASTM D-2922) will be performed and test
rolling will be observed by City,inspectors.
Swelling subgrade (soils with plasticity index of 20 or
more) shall be sprinkled as required to provide not less
than optimum moisture during compaction. Other subgrade
soils will be compacted at a moisture content of plus or
minus 2% of optimum moisture or other moisture content
directed,by the Engineer.
Test rolling will be accomplished with a 25 ton pneumatic
tire roller or other pneumatic tire roller approved by the
Engineer. The Engineer may require up to six passes of the
roller in determining the condition of the subgrade.
Any soft or unstable areas found by test rolling will be
corrected by removing the soft or unstable material and
replacing it with suitable material compacted to specified
density. The areas so corrected shall be test rolled.as
specified above.
Special care shall be exercised in grading street
intersections where dips are located so that the cross
profiles present a smooth riding surface and so that the
compacted base thickness will not be less than six (611) or
nine (911). Crown section shall begin to decrease 60 feet
back of end of radius for residential streets. Wider street
dips will be blue topped as shown on the detail sheet.
The Contractor may proceed with subgrade preparation on any
schedule he may select except that, unless hindered by
factors beyond his control, not more than seven (7) calendar
days shall elapse between the time subgrade preparation is
begun and the spreading and compacting of the base has
started. Measures shall be taken by the Contractor not to
leave driveways impassable during the night hours.
5.Excess Materials
Materials excavated in excess of that needed in fill and
backfill behind curb shall be wasted by the Contractor.
Care shall be taken by the Contractor to use only topsoil in
the backfill behind the curbs. The Contractor may dispose
of the surplus excavated material in any manner not
objectionable to the public, and it is his responsibility to
r locate a suitable site for dumping the waste excavation. In
P any event, the Contractor shall not dispose of the surplus
materials in any of the lake areas either outside or within
the city limits. Location of disposal sites near any -lake
area must be approved by the Engineer.
D-27
1_
The preparation of the subgrade for concrete alley paving
shall be done in the same manner as other subgrade-
excavation which requires scarifying, wetting, disking,
blading, rolling, and compacting. The Contractor will be
required to excavate around existing improvements such as
gas meter, water meters, poles, etc. Each of these.
obstructions shall be the responsibility of the Contractor.
Trees that conflict with the improvements shall be removed
by the Contractor upon -approval of the Engineer.
The Contractor shall shape to subgrade to the cross-section
shown on the plans and to the lines and grades established
by the Engineer. After the forms are set and before the
reinforcing is placed, the Contractor shall finally shape
the subgrade so that there will be a minimum thickness of
concrete of five (511) inches at the centerline and seven and
one-half inches (7-1/211) at the outside edges.. All areas
where fill material is required shall be compacted. The
subgrade shall be wetted and rolled to secure 90% Proctor
Density in the upper six (611) making a firm foundation for
the alley paving.
The Contractor will be required
alley outside of the limits of
drainage in the alley will be t
slab. Excess excavated materia
approved location..
to shape the portion of the
the concrete slab so that all
o the invert of the concrete
is shall be hauled to any
Prior to.placing any embankment, all "Preparing Right -Of -
Way" and/or "Clearing and Grubbing" operations shall have
been completed on the excavation sources and areas over
which the embankment is to be placed. Stump holes or other
small excavations in the limits of the embankment shall be
backfilled with suitable material and thoroughly tamped by
approved methods before commencing embankment construction.
The surface of the ground, including plowed loosened ground,
or surface roughened by small washes or otherwise, shall be
restored to approximately its original slope by blading or
other methods and where indicated on plans or required by
the Engineer, the ground surface thus prepared shall be
compacted by sprinkling and rolling.
Where_ embankments are to be placed adjacent to or over
existing roadbeds, the roadbeds slopes shall be plowed or
scarified to a depth of not less than six (611) inches and
the embankment built up in successive layers, as hereinafter
specified, to the level of the old roadbed before its height
is increased. Then, if directed, the top of the roadbed
D-28
4
?� shall be scarified and recompacted with the next layer of
the new embankment. The total depth of the scarified and
added material shall not exceed the permissible depth of
r layer.
Trees, stumps, roots, vegetation, or other unsuitable
materials shall not be placed in embankment.
Except as otherwise required by the plans, all embankment
shall be constructed in layers approximately parallel to the
finished grade of the roadbed and unless otherwise specified
each layer shall be so constructed as to provide a uniform
slope of 1/4" inch per foot from the center line of the
roadbed to the outside.
Embankments shall be constructed to the grade established by
the Engineer and completed embankments shall correspond to
the general shape of the typical sections shown on the plans
and each section of the embankment shall correspond to the
detailed section or slopes established by the Engineer.
After completion of the roadway, it shall be continuously
maintained to its finished section and grade until the
project is accepted.
�.
Except as otherwise specified, earth embankments shall be
constructed in successive layers for the full width of the
individual roadway cross section and in such lengths as are
�r
J
best suited to the sprinkling and compaction methods
utilized.
Layers of embankment may be formed by utilizing equipment
which will spread the material as it is dumped, or they may
be formed by being spread by blading or other acceptable
methods from piles or windrows dumped from excavating or
hauling equipment in such amounts that material is evenly
distributed.
i
Minor quantities of rock encountered in constructing earth
embankment shall be incorporated in the specified embankment
layers, or may be placed in accordance with the requirements
r
for the construction of rock embankments in the deeper fills
-
within the limits of haul shown on the plans, provided such
placement of rock is not immediately adjacent to structures.
!'
Also, rock may be placed in the portions of embankments
i
outside the limits of the completed roadbed width where the
j
size of the rock prohibits their incorporation in the normal
r.
embankment layers.
Each layer of embankment shall be uniform as to material,
density and moisture content before beginning compaction.
r Where layers of unlike materials abut each other, each layer
P.-. shall be featheredged for at least 100 feet or the material
shall be so mixed as to prevent abrupt changes in the soil.
No material placed in the embankment by dumping in a pile or
D-29
l
windrow shall be incorporated in a layer in that position,
but all such piles or windrows shall be moved by blading or
similar methods. Clods or lumps of material shall be broken
and the embankment material mixed by blading, disking, or
similar methods to the end that a uniform material or
uniform density is secured in each layer. Water required
for sprinkling to bring the material to the moisture content
necessary for maximum compaction shall be evenly applied and
it shall be the responsibility of the Contractor to secure a
uniform moisture content throughout the layer by such -
methods as may be necessary. In order to facilitate uniform
wetting of the embankment material, the Contractor shall
water at the material source if the sequence and methods
used are such as not to cause an undue waste of water. Such
procedure shall be subject to the approval of the Engineer.
The compaction method shall require that, each layer shall
be compacted to the required density by any method, type,
and size of equipment which will give the required
compaction. The depth of layers, prior to compaction,
shall depend upon the type of sprinkling and compaction
equipment used. Prior to and in conjunction with the
rolling operation, each layer shall be brought to the
moisture content necessary to obtain the required density
and shall be kept leveled with suitable equipment to
insure uniform compaction over the entire layer.
For each layer of earth embankment and select material,
it is the intent of this specification to provide the
density as required herein, unless otherwise shown on the
plans. The required compaction shall be 95% Standard
Proctor Density ASTM D-698.
After each section of earth embankment or select material
is complete, tests as necessary will be made by the
Engineer. If -the material fails to meet the density
specified, the course shall be reworked as necessary to
obtain the specified compaction, and the compaction
method may be altered on subsequent work to obtain
specifieddensity. Such procedure shall be determined
by, and subject to, the approval of the Engineer.
At any time, the Engineer may order proof rolling to test
the uniformity of compaction of the embankment subgrade.
All irregularities, depressions, weak or soft areas which
develop shall be corrected immediately by the Contractor.
Should the subgrade, due to any reason or -cause, lose
required stability, density, or finish before the
pavement structure is placed, it shall be recompacted and
refinished at the sole expense of the Contractor.
Excessive loss of moisture in the subgrade shall be
D-30
7
prevented by sprinkling, sealing, or covering with a
subsequent layer of granular material. Excessive loss of
moisture shall be construed to exist when the subgrade
soil moisture content is more than 4 percent below the
optimum for compaction to Standard Proctor Density. (Also
see Section D, Item 2.A.2. Compaction.)
2. At Culverts
Embankments adjacent to culverts which cannot be
compacted by use of the blading and rolling equipment
used in compacting the adjoining sections of embankment
shall be compacted in the manner prescribed below.
The following requirements shall apply to the backfilling
of pipe culverts in addition to the pertinent portions of
the general requirements given in the preceding section.
After the bedding has been prepared and the pipe
installed as required by the pertinent specifications,
selected materials from excavation or borrow shall be
placed along both sides of the pipe equally, in uniform
layers not to exceed six (611) inches in depth (loose
measurement), wetted and thoroughly compacted so that on
each side of the pipe there shall be a berm of thoroughly
compacted materials at least as wide as the external
diameter of the pipe, except insofar as undisturbed
material obtrudes into this area. The method and degree
of compaction.shall be same as specified above.
Filling and/or backfilling shall be continued in this
manner to the elevation of the top of the pipe. Special
care shall be taken to secure thorough compaction of the
r
material placed under the haunches of the pipe. All fill
or backfill below the top of the pipe shall be compacted
mechanically in the same manner and to the density
prescribed above, regardless of whether or not such
material is placed within the limits of the embankment or
roadbed. In the case of embankments, the remainder of
the fill above the top of pipe shall be placed in
accordance with the provisions for placing roadway
embankment as prescribed in the pertinent specification
included in the contract. No construction traffic will
be permitted to cross any pipe culvert until the minimum
depth of fill above the pipe as determined by the
Engineer has been placed and consolidated.
3.BASE COURSE
The base course shall consist of.a minimum of six (611) or nine
i' (911) inches of compacted approved caliche, black base or
combination of caliche and black base material shaped in
accordance with the typical cross -sections provided in the
r plans and to the grades established by the Engineer.
t
D-31
r
Approved base material shall be hauled in vehicles of
uniform capacity to the site and dumped evenly so that an
adequate quantity'of material will be placed to provide a
minimum of six (6"-) inches of compacted base material on all
units except major thoroughfares streets. On these streets
the Contractor will construct nine (911) inches of compacted
base material.
Processing of caliche base shall be accomplished in multiple
lifts of three (311) inches in compacted depth. Each lift or
layer shall be thoroughly moistened and rolled as it is cut
from the windrow. After all of the material is cut from the
windrow to the sides, it shall be cut back to the center in
lifts of three (311) inches and thoroughly moistened and
rolled again. Succeeding layers shall then be placed
similarly until the caliche base course is completed.
Caliche base shall be compacted to 95o Standard Proctor
Density (ASTM D-698) for all improvements except
thoroughfare street paving shall be compacted to 100t
Standard Proctor Density.
Density tests (ASTM D-2922) will be performed and test
rolling for base will be observed by City inspectors.
Caliche base shall be compacted at a moisture content of
plus or minus 2% optimum moisture or other moisture content
directed by the Engineer.
The finished caliche base shall be test rolled with a 25 ton
pneumatic tire or other approved roller. The Engineer may
require up to six passes of the roller in determining the
condition of the base.
All nine (911) inch compacted caliche base shall be
accomplished in three (311) inch lifts. The caliche course
shall then be sprinkled as required and rolled with
compactors as directed until a uniform compaction of
specified "Standard Proctor Density" is secured. Throughout
this entire operation, the shape of the course shall be
maintained by blading; and the surface upon completion shall
be smooth and in conformity with the typical sections shown
on plans and to the established lines and grade.
Traffic may be allowed to travel on the caliche base, as
directed by the Engineer, 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
D-32
n
1 I
surface shall not be placed on base course that exceeds
optimum mixture by two percent (2t).
Processing of asphaltic base shall be as directed by the
Engineer and similar to that described under Hot Mix
Asphaltic Concrete Surface. Lift thickness will be
indicated by the Engineer or as shown on the paving plans:
Electronic screed controls will be required for placing
black base on grade. The density required will be
determined by the Engineer after material to be used has
been approved. All areas and "nests" of segregated coarse
or fine material shall be corrected or removed and replaced
with well graded material as directed by the Engineer.
Each layer of black
the Engineer, with a
roller requiring up
are placed. A delay
surface will require
construction of the
base may be test rolled, as directed by
25 ton pneumatic tire or other approved
to six passes before succeeding layers
in construction of a black base mat or
test rolling and approval prior to
next layer.
The compacted base shall be finished and
'rI- preceding the application of the surface
J - loose or unconsolidated material shall be
surface moistened and rolled with a steel
shaped immediately
treatment. All
removed and the
wheel roller.
The finished caliche base shall be checked for density
requirements and by test rolling. Materials that fails
the density requirement shall be reworked as necessary
until passing. The full depth of caliche base shall be
compacted to the extent necessary to remain firm and
stable under test rolling. All irregularities,
depressions or weak spots which develop shall be
corrected immediately by scarifying the areas affected,
adding suitable material as required, reshaping and
recompacting by sprinkling and rolling. If the
Contractor chooses, he may repair the weak spot by
removing the material involved and replacing it with Type
"C" hot mix or asphalt stabilized base. In this case,
the surface may be applied as soon as the hot mix patch
has been compacted and cooled to ambient temperature.
D-33
r
Longitudinally a straightedge 10 feet long shall be used
to detect any deviation which shall be corrected as
defects.
Description
This item shall consist of 1-1/2" compacted C.O.L. Type "C" or
Type I'D" hot mix asphaltic concrete surface, using approved
crushed stone aggregate, constructed over a compacted base.
The base shall be primed and a tack coat applied as required.
A.
Hot mix asphaltic concrete will be accepted on a lot basis.
A lot will consist of 1000 tons or each days production and
will be divided into three (3) equal sublots. Pavement
density will be determined by taking the average density for
each lot, from the three sublots, the average Maximum
Theoretical Density, taken from trucks delivering hot mix
asphaltic concrete to the site. The samples will be tested
in accordance with ASTM D-2041.
Each lot of compacted pavement will be accepted, with
respect to density, when the average field density is within
the below listed specifications. Four field density
determinations will be made for each lot. Cores taken from
the pavement will be used to test the field density. The
density of the cored samples will be determined -in
accordance with ASTM D-2726.
Density Specifications
Based on Maximum Theoretical Density
Minimum = 92.5.
Optimum = 96.016
Maximum = 97.5%
If the mixture produced does not have the specified
qualities, it _shall be adjusted until it does. The pavement
shall be constructed on the previously completed and
approved subgrade, base, existing pavement, bituminous
surface or in the case ofa bridge, on the prepared floor
slab, as herein specified and in accordance with the details
shown on the plans.
D-34
r
'I B.Temperature Requirements
1. November 1 until April l
a. The asphaltic mixture shall not be placed when the air
temperature is below 55 degrees F and falling.
b.The asphaltic mixture may be placed when the air
temperature is above 50 degrees F and rising.
a. The asphaltic mixture shall not be placed when the air
temperature is below 50 degrees F and falling.
b. The asphaltic mixture may be placed when the air
temperature is above 45 degrees F and rising.
a. The asphaltic mixture shall not be placed when the air
temperature is below 45 degrees F and falling.
b. The asphaltic mixture may be placed when the air
temperature is above 40 degrees F and rising.
The air temperature shall be taken in the shade away from
artificial heat or as reported by the National Weather
Service on their hourly report (Telephone No. 762-0141).
The Engineer may use his discretion to require a cover
over the asphaltic mixture when being hauled from the
plant to the job site.
If the temperature of a load of asphaltic concrete
measured while passing through the lay -down machine is 25
degrees F less than the mixing temperature, the load may
be rejected by the Engineer and payment will not be made
for the rejected material.
—•- •* • — �� — C• •— �•
The compacted base upon which the hot mix asphaltic
_concrete surface is to be placed shall be prepared and
cleaned, as required by the Engineer, before the prime
coat is applied.
The prime coat shall consist of an application of 0.25
gallons per square yard of MC asphalt.
D-35
is
6.Tack Coat
Before the asphaltic mixture is laid, the surface upon
which the tack coat is to be placed shall be cleaned
thoroughly to the satisfaction of the Engineer. The
surface shall be given a uniform application of tack coat
using asphaltic materials of this specification. This
tack coat shall be applied, as directed by the Engineer,
with approved sprayer. Where the mixture will adhere to
the surface on which it is to be placed without the use
of a tack coat, the tack coat may be eliminated by the
Engineer. All contact surfaces of curbs and structures
and all joints shall be painted with a thin uniform coat
of the.asphaltic material meeting the requirements for
tack coat. The tack coat shall be rolled with a
pneumatic tire roller as directed by the Engineer.
The asphaltic mixture, prepared as specified above shall
be hauled to the work site in tight vehicles previously
cleaned of all foreign material. The dispatching of the
vehicles shall be arranged so that all material delivered
may be placed, and all rolling shall be completed during
day -light hours. The inside of the truck body may be
given a light coat of oil, lime slurry or other material
satisfactory to the Engineer, if necessary, to prevent
mixture from adhering to the body. In cool weather or
for long hauls, canvas covers and insulating of truck
bodies may be required. Vehicles of the semi -trailer
type are prohibited.
Generally the asphaltic mixture shall be dumped and
spread on the approved prepared surface with the
specified spreading and finishing machine in such manner
that when properly compacted the finished pavement will
be smooth, of uniform density and will meet the
requirements of the typical cross sections and the
surface tests. During the application of asphaltic
material, care shall be taken to prevent splattering of
adjacent pavement, curb and gutter, and structures.
The surface course shall be laid in a compacted layer
with a minimum compacted thickness of one and one-half
inches (1-1/211).
A level up course, 1/2" or more in thickness, shall
require the use of black base or a coarse grade of hot
mix approved by the Engineer. It shall be spread and
compacted to lines and grades as established by the
Engineer.
D-36
4+.
When the asphaltic mixture is placed in a narrow strip
along the edge of an existing pavement, or used to level
rM up small areas of an existing pavement or placed in small
irregular areas where the use of a finishing machine is
! not practical, the finishing machine may be eliminated
when authorized by the Engineer, provided a satisfactory
surface can be obtained by other approved methods.
Adjacent to flush curbs, gutters, liners and structures,
r- the surface shall be finished uniformly high so that when
compacted it will be slightly above the edge of the curb
and flush structure.
rAll joints shall present the same texture density, and
smoothness as other sections of the course. The joints
between old and new pavements or between successive day's
►'" work shall be carefully made to insure a continuous bond
between old and new sections of the course.
The transverse edges of old pavement and, if required by
the Engineer, the successive days pavement shall be sawed
with an approved concrete saw to expose an even vertical
surface for the full thickness of the course. All
T contact surfaces of previously constructed pavement shall
1 be painted with a thin uniform coat of hot bituminous
material before the fresh mixture is placed.
9. Compacting
As directed by the Engineer, the pavement shall be
compacted thoroughly and uniformly to the required
_
'b-
density. The specified rollers shall be used, except as
provided in paragraph (3) below.
Rolling with the three wheel and tandem rollers.shall
start longitudinally at the sides and proceed toward the
,.•
center of the pavement, overlapping on successive trips
by at least half the width of the rear wheels unless
"
otherwise directed by the Engineer. Alternate trips of
the roller shall be slightly different in length. On
super -elevated curves, rolling shall begin at the low
side and progress toward the high side unless otherwise
directed by the Engineer. Rolling with pneumatic roller
r'
shall be done as directed by the Engineer. Rolling shall
be continued until required compaction is obtained and
all roller marks are eliminated. One tandem roller, two
r,
pneumatic rollers and at least one three wheel roller, as
specified above, shall be provided for each job.
Additional rollers shall be provided if needed. The
motion of the roller shall be slow, enough at all times to
avoid displacement of the mixture. If any displacement
occurs, it shall be corrected at once by the use of rakes
and of fresh mixture where required. The roller shall
not be allowed to stand on pavement which has not been
r
D-37
fully compacted. To prevent adhesion.of the surface to
the roller, the wheels shall be kept thoroughly moistened
with water, but an excess of water will not be permitted.
All rollers must be in good mechanical condition.
Necessary precautions shall be taken to prevent the
droppings of diesel, gasoline, oil, grease.or other
foreign matter on the pavement, either when the rollers
are in operation or when standing.
When indicated on the plans or permitted by the Engineer
in writing, the pavement may be compacted to the required
density by the use of compacting equipment other than
that specified herein.
Hand tamping. The edges of the pavement along curbs,
headers and similar structures, and all places not
accessible to the roller, or in such positions as will
not allow thorough compaction with the roller, shall be
thoroughly compacted with lightly oiled tamps.
Rolling with the trench type roller will be required on
widening areas in trenches and other limited areas where
satisfactory compaction cannot be obtained.with the three
wheel and tandem rollers.
10. Surface Tests
11.
The surface of the pavement, after compaction, shall be
smooth and true to the established line, grade and cross
section, and when tested with a 10 foot straight edge
placed parallel to the centerline of the roadway or
tested by other equivalent and acceptable means, except
as provided herein, the maximum deviation shall not
exceed 1/8 inch in 10 feet, and any point in the surface
not meeting this requirement shall be corrected as
directed by the Engineer. When placed on existing
surfaces, the 1/8 inch deviation in 10 feet requirement
may be waived by the Engineer.
See Section M, Item 10.(D), Laboratory Control.
12. Equipment
Spreading and Finishing Machine. The spreading and
finishing machine shall be of a type approved by the
Engineer, shall be capable of producing a surface that
will meet the requirements of the typical cross section
and the surface test, when required, and shall have
adequate power to propel the delivery vehicle in a
satisfactory manner when the mixture is dumped into the
finishing machine. The finishing machine shall.be
equipped with a flexible spring .and/or hydraulic type
D-3 8
r
I hitch sufficient in design and capacity to maintain
contact between the rear wheels of the hauling equipment
and the pusher rollers of the finishing machine while the
mixture is being unloaded. The finishing machine shall
be operated in a low gear, or as directed by the
Engineer, at a speed to produce a surface that will meet
the requirements of the typical cross section and surface
t test.
F"
Any vehicle which the finishing machine cannot push or.
propel in such a manner as to obtain the desired lines
and grade without resorting to hand finishing will not be
allowed to dump directly into the finishing machine.
Vehicles dumping into the finishing machine shall be
mechanically and/or automatically operated in such a
manner that overloading the finishing machine being used
n
cannot occur and the required lines and grade will be
obtained without resorting to hand finishing.
Dumping of the asphaltic mixture in a windrow and then
placing the mixture in the finishing machine with loading
equipment will be approved by the Engineer, provided that
the loading equipment is constructed and operated in such
a manner that substantially all of the mixture deposited
on the roadbed is picked up and placed in the finishing
machine without contamination by foreign material of the
.,
mixture. The loading equipment will be so designed and
operated that the finishing machine being loaded will
obtain the required line, grade and surface without
resorting to hand finishing. Any operation of the
7
loading equipment resulting in the accumulation and
i.
subsequent shedding of this accumulated material into the
asphaltic mixture will not be permitted.
r
Forms. The use of forms will not be required except
where necessary to support the edges of the pavement
during rolling. If the pavement will stand rolling
without undue movement, binder twine or small rope may be
used to align the edges.
Motor Grader. The motor grader, if used, shall be self-
propelled power motor grader; it shall be equipped with
pneumatic tired wheels; shall have a blade length of not
less than 12 feet; shall have a wheel base of not less
than 16 feet; and shall be tight and in good operating
condition and approved by the Engineer.
Pneumatic Tire Rollers. The pneumatic tire roller shall
be an acceptable self-propelled roller mounted on
pneumatic tired wheels, with the weight capable of being
varied uniformly from 275 to 550 pounds per inch width of
tire tread, so constructed as to be capable of being
operated in both a forward and a reverse direction and
shall have suitable provision for moistening the surface
D-39
of the tires while operating. All tires of the same
roller shall be smooth tread of equal size and diameter
and shall be arranged in such a manner that the gap
between the tires of one axle will be covered by the
tires of the other.
The tire pressure of each tire shall be adjusted as
directed by the Engineer and this pressure shall not vary
by more than 5 pounds per square inch.
Two Axle Tandem Roller. This roller shall be an
acceptable power driven tandem roller weighing not less
than 8 tons.
Three Wheel Roller. This roller shall be an acceptable
power driven three wheel roller weighing not less than 10
tons
Trench Roller. This roller shall be an acceptable power
driven trench roller equipped with sprinkler for keeping
the wheels wet and adjustable road wheel so that the
roller may be kept level during rolling. The drive shall
be not less than 20 inches wide. The roller under
working conditions shall produce 325 pounds per linear
inch of roller width and be so geared that a speed of 1.8
miles per hour is obtained in low gear.
Straightedges and Templates. When directed by the
Engineer, the Contractor shall provide acceptable 10 foot
_straightedges for surface testing. Satisfactory
templates shall'be provided by the Contractor as required
by the Engineer.
All equipment shall be maintained in good repair and
operating condition and shall be approved by the
Engineer.
The Contractor shall furnish such suitable machinery,
equipment and construction forces as may be necessary, in
the opinion of the Engineer, for the proper prosecution
of the work, and failure to do so may cause the Engineer
to withhold all estimates which have or may become due or
the Engineer may suspend work until his requests are
complied with.
13. Opening to Traffic
The pavement shall be opened to traffic when directed by
the Engineer. All construction traffic allowed on the
pavement shall comply with City Ordinance governing _
traffic on City Streets.
D-40
i,
a
If the surface ravels, corrugates or shoves, it will be
the Contractor's responsibility to correct this condition
f.. at his expense.
5. CLEANUP
Within three days after completion of any Sub -Unit of paving
the Contractor shall clean, remove rubbish and temporary
structures from the street, restore in an acceptable manner
�^ all property, both public and private, which has been damaged
i during the prosecution of the work, and leave the site of the
work in a neat and presentable condition throughout. The cost
of the "cleanup" shall be included as a part of the cost of
r the various items of work involved, and no direct compensation
will be made for this work. This work shall be done before
final acceptance of the Sub -Unit will be considered.
The cleanup shall include the sloping, filling and shaping of
the area between the curb and property line. This area shall
be filled with good top soil, with no rocks larger than 1".
When the ground behind the curb is higher than the top of the
curb, the Contractor will be required to cut this area down to
provide a smooth, even slope between the property line and the
curb.
6.PROTECTION OF EXISTING
UTILITIES
7
A. ADJUSTMENT OF VALVES
AND MANHOLES
The City Forces will place valve boxes and manholes on
finished grade after the base has been finished to grade.
The Contractor
shall allow the City Forces at least 3 days
to do this work
after finishing the base and before
application of
asphalt. It shall be the responsibility of
the Contractor
to notify the Water and Sewer Department 48
hours after curb and gutter has been completed so that the
City Forces can
properly schedule their work. In all alleys
�./
the City Forces
will set the valve boxes and manholes to
grade after the
forms are in place. Any variation in this
procedure that
causes expense to the City shall have the
approval of the
Engineer, and such expense shall be borne by
the Contractor.
PM'
B. INSTALLATION. ADJUSTMENTS,
AND TRAFFIC INSTALLATIONS
AND PROTECTION OF UTILITIES
• The plans show only approximate locations of utilities as
obtained from the various utility companies and shall not
relieve the Contractor from familiarizing himself with all
underground utilities. It is not implied that all existing
utilities are shown on the plans. The City of Lubbock does
not assume any responsibility for any utility lines which
are not shown on the plans.
T
D-41
The utility companies will attempt to move all utilities
that can be reasonably removed prior to beginning of
construction; however, this does not relieve the Contractor
from any damage that he might do to any utility property.
In case of any damage, the Contractor shall immediately
notify the utility company.
City Water and Sewer
Lubbock Power and Light
City Traffic Shop
Energas Traffic Shop
Southwestern Public Service
Southwestern Bell Telephone
Cox Cable of Lubbock
City Traffic Engineering
767-2588, 767-2344
767-2555, 767-2554
767-2140, 767-2144
741-4200, 741-0231
763-2881, 796-3250
741-6101,-741-5151
793-5053, 793-4683
767-2132
Sequence: The sequence of utility adjustments has been
mutually agreed upon by the utility companies in the City of
Lubbock and will attempt to follow the following schedule:
Plans for contract project will be delivered to all utility
companies two weeks prior to opening bids. As a general
rule, these projects will have been staked.
The utility companies will relocate all items necessary,
locate and flag all meters, valves, manholes, underground
cables, etc., prior to the date the Contractor is to begin
construction.
After the subgrade is completed on alley paving projects,
and after the base is completed on all street paving
projects, all manholes, valve boxes,.etc., will be set to
finished grade by the utility companies. The site shall be
left in a clean condition.
on all projects, including private contracts, the Contractor
shall exercise care not to damage any sanitary sewer pipe or
manholes, storm sewer pipe or manholes, or telephone cable
or manholes, water or gas lines, valve boxes , meter boxes,
nor any other pipe or.utility. If necessary, the Contractor
shall call the department or company concerned and make
arrangements for adjusting the manhole, valve box, meter
box, or other utility to grade. on all projects for which
he is awarded a contract, the Contractor will be responsible
during the construction period for any damages to manholes,
valve boxes, meter boxes and other utilities.
-_,
D-42
Should any item be damaged during the process of
construction, the Contractor is to notify the affected
utility company and the City inspector. The utility company
will immediately repair the damaged item. Any bills for
damage will be sent through the Department of Engineering.
The Department of Engineering will process all bills and fix
responsibility for damage and govern the extent of repair.
Private contracts do not have plans, but utility companies
will be furnished cut sheets and notified of impending
construction by letter. Other items such as adjustments,
damages, etc. will be handled the same as for bid let
projects.
The utility companies will schedule their work with the
Contractor. When utility adjustments commence before the
contract is awarded, it will be the responsibility of the
utility company to barricade the project.
Unless otherwise agreed upon by the City and the utility
companies involved, the sequence of installation of
underground utilities shall be as follows:
Utility
Sewer
Electric (Primary)
Electric (Secondary)
Telephone
T.V. Cable
Water
First
Second
Third
Fourth (last if no power or
T.V.)
Fifth
Sixth
Gas Seventh
r Traffic Engineering Eighth
t;
On all projects, including private contracts, the Contractor
r' shall not place curb and gutter or base material at points
where underground utilities cross or propose to cross until
such utilities have been adjusted or installed.
._SIBM 1 -
r.,
Description
i "Salvaging and Replacing Base" shall consist of removing the
existing base material where shown on plans, such temporary
�^ storage as is necessary, and the replacement of this material
r D-43
on the prepared roadbed as herein specified and in conformity
with the typical sections shown on plans and to the lines and
grades as established by the Engineer.
CONSTRUCTION METHODS
1. Salvacrincr Existing Base
The existing base, including any bituminous mat not shown
on plans to be salvaged, shall first be.cleaned of all
dirt or other.objectionable material by blading, brooming
or other approved methods, then scarified to the width
and depth as may be required to provide the estimated
amount of salvaged material per station as shown on the
plans. Subgrade shall be reworked, if necessary, as
directed by the Engineer. Any bituminous mat encountered
shall be broken into particles not more than two inches
in size, and incorporated uniformly with the existing
base. The material thus salvaged shall be placed in
stockpiles or windrows until sufficient subgrade has been
prepared to receive the salvaged material; then, if the
Contractor so elects, the remaining old base material as
salvaged may be placed directly upon the prepared
subgrade as directed by the Engineer, thus eliminating
the necessity of stockpiling. It shall be the
responsibility of the Contractor that all the available
material shall be salvaged and replaced and shall be kept
reasonably free of soil from the subgrade or roadbed
during the salvaging and replacing operations. When
material is windrowed or stockpiled, it shall be so
placed so as not to interfere with traffic, proper
drainage or the general progress of the work.
Preparation of subgrade shall be in accordance with
Section D, Item 2 Earth Work of these specifications.
The salvage material shall be in accordance with Section
D, Item 2 Earth Work.
•
This item shall consist of salvaging base material from
places shown on the plans or as directed by the Engineer.and
of stockpiling that material where shown on the plans or
directed by the Engineer.
D-44
r
r
B.CONSTRUCTION METHODS
Trash, wood, brush, stumps and other objectionable material
at the storage site shall be removed and disposed of as
directed by the Engineer prior to the beginning of work
required by this item. The base material, including any
asphalt mat, which may not be shown on the plans, shall be
cleaned of all dirt or other objectionable material.
Asphaltic materials shall be broken into pieces not more
than two inches in size and incorporated uniformly with the
salvaged base material. Material to be salvaged shall be
worked into stockpiles or windrows and loaded by approved
equipment into approved equipment for hauling to the
stockpile site. It shall be the responsibility of the
Contractor that all the available material shall be salvaged
and kept reasonably free of soil from subgrade or road bed
during the salvaging operations. The operation shall be
conducted in such manner as not to interfere with traffic,
drainage or the general requirements of the work. After the
material is deposited in the stockpile area, it shall be
worked into a neat compact stockpile.
The thickness of the pavement shall be determined by average
caliper measurement of cores tested in accordance with ASTM C-
174 .
Pavement thickness shall be not less than -the specified
minimum thickness.
When the measurement of any core is less than the specified
minimum thickness, the actual thickness of the pavement in
this area shall be determined by taking additional cores at
not less than 10-foot intervals parallel to the centerline in
each direction from the affected location until each direction
from the affected location until in each direction a core is
found which is not deficient. Areas found deficient in
thickness shall be removed and replaced with pavement of the
minimum thickness specified.
Cores shall be obtained at the discretion of the Engineer.
�., D-45
No Text
The unit price or lump sum bid on each item, as stated in the
proposal, shall include furnishing all labor, superintendence,
machinery, equipment and materials, except materials specified to
be furnished by others, necessary or incidental to complete the
various items of work in accordance with the plans and
specifications. Cost of work or materials shown on, or which can
be reasonably inferred from the plans or the. intent thereof, or
called for in the specifications and on which no separate payment
is made shall be included in the bid prices on the various pay
r items. The bid items listed on the proposal will be the only pay
items on this project, unless the contract documents are revised
by addendum or change order. All quantities for payment shall be
determined by the City.
Measurement of the concrete curb and gutter .to be removed shall
be made prior to removal and the actual amount shall be
determined in linear feet, and will be paid for at the unit price
bid per linear foot of removal, disposal and replacement. It
shall be the Contractor's responsibility to notify the City's
representative prior to removal to enable measurements to be
made. The unit price shall be full compensation for all curb and
�- gutter removal, loading, hauling and disposal of curb and gutter
at a suitable site for legal disposal of waste material not
objectionable to the public, all subgrade preparation under the
curb and gutter including all excavation or placement of fill,
blading, tamping, wetting, rolling, loading, hauling and
stockpiling all excess excavated material, removing and disposing
of all obstructions noted on the plans or as become necessary;
and for furnishing and placing all materials, including premolded
expansion joint material, reinforcement, backfilling and for all
manipulations, labor, tools equipment and incidentals necessary
P" to the completion of the work as herein specified.
Measurement will be made along the face of the curb for the
actual length of concrete curb and gutter, sawtooth curb and
gutter or concrete gutter constructed and will be paid for at the
unit price bid for concrete curb and gutter or concrete gutter.
The unit price bid shall be full compensation for all subgrade
preparation under the curb and gutter or gutter including all
PM excavation or placement of fill, blading, tamping, wetting,
rolling, loading, hauling and stockpiling all excess excavated
material, removing and disposing of all obstructions noted on the
plans or as become necessary; and for furnishing and placing all
r' materials, including premolded expansion joint material,
reinforcement, backfilling and for all manipulations, labor,
tools, equipment and incidentals necessary to the completion of
r the work as herein specified.
i
7 MP-1
e i AIF!i -
Measurement will be made of the actual slab area constructed,
with a reduction made for the area comprised by a 30" wide strip
around the curbed radius portions of all fillets, which will be
measured and paid for separately as 130" Concrete Curb and Gutter
or Concrete Gutter'. The resulting slab area will be paid for at
the unit price bid per square yard. This unit price shall be
full compensation for subgrade preparation including all
excavation or fill, blading, wetting and rolling, loading,
hauling and stockpiling all excess excavated material, removing
and disposing of all obstructions noted on the plans or as may
become necessary; and for furnishing and placing all materials,
all manipulations, labor, tools, equipment and incidentals
necessary to complete the work.
4. STREET PAVEMENT (1-1/2" (min.) TYPE C MAC ON 6" (min.)
CALICHE BASE)
Measurement shall be made of the actual area and shall be paid
for at the unit price bid per square yard of paving. This unit
price shall be full compensation for all work, including subgrade
preparation, all excavation or placement of fill, compacting,
blading, wetting and rolling, loading, hauling and stockpiling
all excess subgrade material, removing and _disposing of all
obstructions noted on the plans or as become necessary; and for
furnishing and placing 6" minimum compacted thickness new (not
salvaged) caliche base materials, 1-1/2" minimum compacted
thickness of Type C Hot Mix Asphaltic Concrete, including prime
and tack coat, hauling and delivering to the site, spreading,
blading, mixing, sprinkling, compacting, rolling, hauling and
placing all materials and all manipulations, labor, tools,
equipment, traffic provisions, barricades and flagmen and other
incidentals necessary to complete the work as herein specified.
S. 4" CONCRETE HANDICAP RAMPS
The area of concrete handicap ramp will be determined by
measurement of the handicap slab areas constructed. Payment
shall be made for the actual area of concrete handicap ramp at
the unit price bid per square yard. This unit price shall be
full compensation for subgrade preparation including all.
excavation or fill, blading, wetting and rolling, loading,
hauling and stockpiling all _excess excavated, material, removing
and disposing of all obstructions noted on the plans or as may
become necessary; and for furnishing and placing all materials,
including painting, all manipulations, labor, tools, equipment
and incidentals necessary to complete the work.
MP-2
L_ � s l�__: �.�: t___:_: L� [L _: L._� L,—.� L.� L.._.. i___= L._...: l.�_.: � L_ __.. C____i � Ca-�:
7,
The Local Public Agency 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
r, shall be executed under the terms of the original Contract
unless it is expressly provided otherwise.
If applicable unit prices are contained in the agreement
r" (established as a result of either a unit price bid or a
t' Supplement Schedule of Unit Prices) the Local Public Agency
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
1 original total amount shown in the Agreement by more than
twenty-five ( 2 5 %) .
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
Local Public Agency authorizing the Contractor to proceed with
the change. No claim for an adjustment of the contract price
will be valid unless so ordered.
The 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
Superintendent must be free of individual responsibilities to
enable him to give the entire project his constant attention
to facilitate the progress thereof.
SC-1
r
The construction covered by the contract documents shall be
fully completed within 30 working days from the Date to Start
as shown on the Notice to Proceed that the City of Lubbock
gives to the successful bidder.
4.MAINTENANCE OF DETOURS
The Contractor shall do such work as may be necessary to
maintain detours and facilities for safe public travel. 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
highways shall be provided and maintained in a safe and
passable condition by the Contractor at his entire expense.
J .6T41TW 51 WAIM55-oXi-TeR w
The safety of the public and the convenience of traffic shall
be 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 in the plans or as
directed by the Engineer.
The Contractor shall plan and execute his operations in a
manner that will cause the minimum interference with traffic.
The Contractor shall secure the Engineer's approval of his
proposed plan of operation,. sequence of work and methods of
providing for the safe passage of traffic before it is placed
into operation. If at any time during construction 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 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 Engineer. Flagmen shall be English
speaking, courteous, well informed, physically and mentally
able to effectually perform their duties in safeguarding 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
Texas Manual on UNIFORM TRAFFIC CONTROL DEVICES for Streets
and.Highways.
SC-2
Z41,41 kqA0 XG Ism 13.1kill ; 121f;N ZRI 0 4 NitmXt• .) 3Y telivAlF4 0) 4 1 ; s
The Contractor shall have the sole responsibility for
providing, installing, moving, replacing, maintaining,
cleaning and removing upon completion of work, all barricades,
warning signs, barriers, cones, lights, signals and other such
type devices for handling traffic control as indicated in the
plans or as directed by the Engineer. All barricades,
warning signs, barriers, cones, lights, signals and other such
type devices shall conform to details shown on the plans and -
as directed by the Texas Manual on UNIFORM TRAFFIC CONTROL
DEVICES for Streets and Highways.
The Contractor may provide special signs not covered by plans
to protect the traveling public against special conditions or
hazards, provided however, that such signs are first approved
by the Engineer.
Upon completion of the work, all barricades, warning signs,
barriers, cones, lights, signals and other such type devices
and evidence thereof shall be removed by the Contractor.
Not more than seven (7) calendar days shall elapse between the
time subgrade preparation is begun and the time of spreading
and compaction of the base.
,.. At no time during the period of construction shall driveways
and/or alleys be left impassable between the night hours of
6:00 a.m. to 6:00 p.m., except during the construction of the
curb and gutter for which the driveways and/or alleys shall
r= remain closed not more than seven (7) days including four (4)
E days for curing.
The Contractor is responsible for communications with adjacent
property owners during construction that may limit or deny
access to their properties.
8. WATER
NQ free water will be supplied by the City of Lubbock for this
project.
No fire hydrant connection except the standard City of Lubbock
fire hydrant connection shall be used. This connection shall
be furnished by the Water Department and will be picked up by
the Contractor at the Water Meter and Customer Service
Department after he has received a permit and has made a
deposit on the meter, valve and fittings.. The permit will be
valid only, for the length of each project. The Contractor
SC-3
f
securing the permit will be responsible for the above
equipment. If repairs on any of the equipment are required
when they are returned by the Contractor due to misuse,
freezing, vandalism or other damage not the fault of the
equipment, the Contractor, securing the permit will be billed
for the repair. Should the meter, valve or fittings be
stolen, the Contractor securing the permit will be billed for
the replacement value.
If a connection is madeona faulty hydrant, the Contractor
shall make a report of the faulty hydrant to the Water Meter
and Customer Service Department.
The loading rack shall 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 and meter on the fire hydrant.
Should a violation of the use of the fire hydrant be observed,
the Contractor will be notified of the violation. Should the
Contractor not comply immediately in correcting the violation,
the City of Lubbock will terminate the permit.
Should the fire hydrant receive damage during use due to the
Contractor's employee or equipment, the Contractor shall
repair the damage or pay to have it repaired to as good a
condition as it was prior to its use by the Contractor and
also to the satisfaction of the Director of Water Utilities.
Should pavement in the vicinity of a fire hydrant be damaged
during the use of the fire hydrant, or if the pavement fails
due to the use of the fire hydrant, either while the fire
hydrant is in use or after it is in use, the Contractor shall —
replace the damaged pavement to the satisfaction of the
Engineer.
Meters shall be returned at the end of each project and the
Contractor will be billed for the water used. After the
billing for water consumption and meter and valve repairs have
been paid, the City of Lubbock Water Department will refund
the balance of the deposit, if any.
9. RESTRICTIONS AND REQUIREMENTS FOR CONSTRUCTION
A.The Contractor will need special permission to be permitted
to work on weekends or legal holidays and shall do no work
on any contract item before daylight or later than one hour
after sundown, except as directed and approved by the
SC-4
r
Engineer. No work will be allowed between November 1 and
January 2, unless approved by the Engineer.
r
B.A 1:2 dilute emulsion treatment with MS-1 or SS-1 emulsified
asphalt at a rate of 0.10 gallon per square yard will be
applied to the A.C. surface within ten (10) days of the
placement of the A.C. surface.
C. Temperature Reguirements: The temperature readings to be
used will be as reported by the National Weather Service on
an hourly report [Telephone Number 762-01411.
1.HMAC - November 1 until April 1
a. The asphaltic mixture shall not be placed when the air
temperature is below 55°F and falling.
b. The asphaltic mixture may be placed when the air
temperature is above 50°F and rising.
2. HMAC - April 1 till November 1
a. The asphaltic mixture shall not be placed when the air
temperature is below 50°F and falling.
b. The asphaltic mixture may be placed when the air
temperature is above 45°F and rising.
3.Asphalt Stabilized Base
a. The asphaltic mixture shall not be placed when the air
temperature is below 45' F and falling.
b.The asphaltic mixture may be placed when the air
temperature is above 400 F and rising.
The Engineer may use his discretion to require a cover
over the asphaltic mixture when being hauled from the
plant to the job site.
D. Unless otherwise approved by the Engineer, the minimum
temperature of asphalt materials immediately after placement
by the laydown machine will be 3000 F for asphaltic concrete
surface and 2750 F for asphalt stabilized base.
E. Standby rollers shall be located at the job site for
immediate use if needed.
F. Proof rolling will be required on subgrade, caliche base,
black base, embankment or surface. After rain showers if
deemed necessary by the Engineer each item that was
approved will be re -rolled. The proof rolling will be
SC-5
performed using a self-propelled 25 ton pneumatic roller
with certified weight certificate.
G. Preliminary approval, by the Engineer, of aggregate at the
pit and crusher location shall be required, prior to
delivery to the plant. Final approval of the stockpile
material, at the hot mix plant or concrete plant, or
stockpile locations will be required by the Engineer, after
which no additional aggregate.will be added to the approved
stockpile prior to entering the mixing plant.
H. During the period of construction the Contractor will not
use private driveways for turning or parking his equipment.
Any damage to sidewalks, driveways, slabs or curb and gutter
will be replaced at the Contractor's expense.
I. Before any portion of any street is closed to traffic the
Contractor will be required to have,sufficient equipment on
the site to start the construction, and at no time will any
section of the closed area be left three (3) days without
some type of work being performed. If there is a shortage
of equipment to work on all areas of the closed section then
the Contractor will be required to provide additional
equipment.
J. It is the intent of these requirements to construct the
improvements listed in this contract with the least
inconvenience to the property owners and the traveling
public. In the event damage occurs to pavement in the area
of a fire hydrant, which was caused by the Contractor's
employees negligence to shut off the valve on the loading
rack, it will be the Contractor's responsibility and expense
to repair the paving and replace curb and gutter if required
by the Engineer.
K. Any damage to existing paving, curb & gutter or any other
public facilities will be corrected to the Engineer's
satisfaction at the Contractor's expense.
L. All fees required for the disposal of any materials,
equipment, structures, etc., as part of this project, shall
be paid for by the Contractor.
; MeM&PROMMIT11,002,19
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 Engineer
except that the utility companies will move their equipment at
no cost to the Contractor. The Contractor will receive no
SC-6
r
i
l compensation for delay caused by the Utility Companies in
t relocating or removing their equipment.
PFVNV4�f4 WO we Ps . IV*�
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
on tests during construction such as density on caliche base,
gradation on concrete and paving aggregates and density and
asphalt extraction test on hot -mix and black base.
d Before materials can be used on any street, current (not
older than 30 days) test reports will be submitted to the
r. Engineer for 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
r Contractor's expense.
The Contractor or concrete supplier will submit a mix design
on the crushed stone and gravel approximately (20) days
before beginning the concrete operation for approval by the
Engineer. Contractors or Concrete Suppliers that supply
concrete for any contract, new -subdivision, street or alley
use permits will be required to submit to the City Engineer
a concrete mix design every thirty (30) to forty-five (45)
days for approval. Any Contractor or concrete supplier that
does not have a current mix design on file with the City
Engineer will not be permitted to furnish concrete for any
project within the City of Lubbock until mix design is
received.
The City of Lubbock Testing Laboratory will make test
cylinders during the construction period. When test
cylinders fail to meet the required strength at the 7 or 28
day break, the concrete in question will be cored by the
City of Lubbock Testing Laboratory within three days after
the 7 or 28 day break. If the core samples fail to meet the
required strength, the concrete will be rejected and
removed. The cost of coring on concrete that fails on the
core test will be charged to the Contractor or Concrete
Supplier. After the mix design is submitted and approved by
the Engineer, no changes in the design or materials will be
permitted without approval of the Engineer.
SC-7
C. Cement
Certified mill test on each car or transport.
D. Asphalt
Certified Lab Test.
The City of Lubbock Testing Laboratory will provide density
tests on the base or subgrade. The City of Lubbock Lab will
be the final authority on all tests.
12. SUBCONTRACTORS
The Contractor shall not award any work to any Subcontractor
without prior written approval of the Owner, which 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.
13. UNDERGROUND UT.TLITIES
The Contractor's attention is directed to the fact that
pipelines and other underground installations as may be shown
of the plans have been taken from the best available
information. ' There may be other pipelines or installations.
The Contractor shall save harmless the City from any and all
suits or claims resulting -from damage by his operations to any
pipeline or underground installation.
SC-8
e,
r
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 6" inches 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.
In the case of a City underground installation, the Contractor
may be required, at the Engineer's option, to repair the cut
with 3-sack cement stabilized caliche at the unit price bid.
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 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 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.
On or about the twenty-fifth day of each month, the Owner's
inspectors shall determine the quantities of work done as of
SC-9
that day for the purposes of assembling an estimate of partial
payment. The Owner's Representative shall review said
estimate of partial payment and if found to be in order shall
prepare a request for partial payment. The estimate shall
show, as completely as practical, the total value of the work
done by the Contractor up to and including the day shown on
the estimate.
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
defects due thereto and pay for any damage to other work
resulting therefrom, which shall appear within a period of one
(1) year from date of final acceptance of the project. The
Owner or the Owner's Representative shall give notice of
observed defects with reasonable promptness.
An extension of time will NOT be allowed on this project. The
project completion will be based on working days allowed
instead of calendar days allowed.
All places in these documents referring to the number of
calendar days to complete the project are hereby revised and
termed the number of working days to complete the project.
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 the proper 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 then only with the written
permission of the Engineer. 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 Engineer will furnish the Contractor a monthly statement
showing number of working days charged during the month, total
number of working days allowed incontract, and the working
SC-10
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
i satisfactory completion of the contract shall require
unforeseen work or work and materials in greater amounts than
these set forth in the contract, then additional working days
or suspension of time charge will be allowed the Contractor
equal to the time which, in the opinion of the Engineer, 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.
M.s i
All salvaged material from this project shall be hauled, by
the Contractor, to City stockpile at 600 Municipal Drive, 84th
and Avenue `P' or 98th and Avenue `Q', as directed by the
Engineer. There may other locations around the City at which
material may be needed, so the Contractor will want to contact
I the Street Department numbers below, before hauling, to see if
a closer location exists where the material can be stockpiled
r or used. All asphaltic materials shall be broken into pieces
i� not more than 2 inches (211) in size. Any non -asphaltic base
material shall be kept separated from the asphaltic materials
and stockpiled separately. All asphalt and base materials
shall be cleaned of all dirt or other objectionable material.
Any excess subgrade material and/or topsoil, not used for
dressing, shall also be kept separate and stockpiled at one of
r` the above locations as directed by the Street Department.
Contact:
Reuben McCowen 767-2358
Don Jennings 767-2600
SC-11
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24"
9-t t/16"•
4-Va'
ils 24"
NOTE : Contractor may use either of the above sections.
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TYPE A
TYPE B
TYPE C
NOTE: Reinforced gutter section will be constructed with three No. 3 bars running the entire length of
the driveway section and the three horizontal bars will be supported with chdM an a spoeinq
so V" OWNC* piocem d.
TYPICAL 24" CURB AND GUTTER SECTIONS
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FILE No. 2-A-57
.--.� --_._A .---I ,--I -1
6x6 - 10/10 wire nosh cantered in slob
or fiber reinforcement.
NOT : Concrete used for
construction shelf be;
RESIDENTIAL 7 ( TYPE- E )
3.000 1-8. - T DAY
THOROUGHFARE & COLLECTOR
(TYPE -C)
3,600 LB. - 28 DAY
DEPTH: 6', Residential St's.
81 Collectors 06 Thoroughfares
Conpaehd base.
A
54
A
SECT. A• A
2. 5,
NOTE: 2.000 LB.- T DAY Concrete shall be used
A. to reploce base material removed.
PLAN VIEW
Scow: 1"s 10'
6 x 6 -10/10 Wire mesh centered In
slab if used.
CONCRETE VALLEY GUTTER DETAIL
29000 LB. - T DAY Concrete.
M.E.W. B-22-94 PLATE No. 10 2-A-99(A)
STRIP PAVING
ri-�{+---
� //••
-10
1-1/2" H.M. A.C. Type'C'
24' Trp. 2'
4" Crown
6" Clliche boss corn acted to 100% S.P.D.
domp•
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= b Y
Subgrade oontpacted to 95% S.P.O.
TYPE T I/T-2 THOROUGHFARES
Width Varies
i
I I 1-1/2" H.M.A.C. surface.
Asphalt stabilized base.
RESIDENTIAL/COLLECTOR
1 6" l Width Varies
� I
j I 1-1/2" H.M.A.C. surface.cm
.y,
-- • e" 6"Cliche base.
A.
11-- I.1/2'
12" Typ.
M.W.6-7-9-1 TYPICAL ASPHALT STREET CROSS -SECTIONS
2-B-218
2-A-039
I/4" tool
edge, typ.
Dummy groove
ro joints
4ac11 side of romp.
0
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ROLLER "JITTERBUG` FINISH ON
„ RAMPS SHALL BE CENTERED IN C.&G. RADIUS
`A. TO THE MAXIMUM EXTENT PRACTICABLE.
'D�Q•
IN RADIUS
TOP OF CURS
PLAIN 3/4" EXPANSION JOINT
(FULL DEPTH) LOCATED AS
"OWN.
CURS TO RAMP DOWN IN 9 ON
BOTH SIDES
CENTER 3' RAMP PORTION ONLY.
sP' • A
THE ENTIRE SURFACE OF THE RAMP SECTION
SMALL BE PAINTED WITH A DURABLE YELLOW
PAINT APPROVED BY THE CITY ENGINEER.
1 KAI�IiFI 1 �:. a V • SAME NOTES APPLY AS
RADIUS PLAN VIEW AT
LEFT.
1 6' - 1 3' 1 6. — —I
FRONT VIEW
�+-- 3' Min. 5'-6" Min.6��
1
NO SCALE
J MINIMUM FIMSNEO
THICKNESS 4`
SECTION A -A
J
TYPICAL HANDICAP RAMP PLAN WHERE NO SIDEWALK EXISTS BEHIND CURB
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