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Home My WebLink AboutResolution - 4355 - Contract - Ronnie Zahn Paving - 1994 Street Maintenance Program - 01_13_1994Resolution No. 4355 January 13, 1994 Item #16 RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the Mayor of the City of Lubbock BE and is hereby authorized and directed to execute for and on behalf of the City of Lubbock a Contract and all related documents by and between the City of Lubbock and Ronnie Zahn Paving of Lubbock to fiunish and install all materials as bid for the 1994 Street Maintenance Program for the City of Lubbock, which contract is attached hereto, which shall be spread upon the minutes of the Council and as spread upon the minutes of this Council shall constitute and be a part of this Resolution as if fully copied herein in detail. Passed by the City Council this ATTEST: (s'cr' LL 4"'.j Betty M. J hnson, q1ty Secretary APPROVED AS TO CONTENT: M Victor Kilmalk, Purchasing Manager APPROVED AS TO FORM: Assistant City Attorney DGV:dp\G ocdocsl7Ahn.Res January 5, 1994 CITY OF LUBBOCK SPECIFICATIONS FOR 1994 STREET MAINTENANCE PROGRAM BID #12765 w LA Ln W-�- 'o. City of Lubbock P.O. Box 2000 Lubbock, Texas 79457 E306-767-2167 MAILED TO VENDOR: December 3,1993 CLOSE DATE: December 16,1993 AT 2 P.M. Office of Purchasing BID #12765 - 1994 STREET MAINTENANCE PROGRAM ADDENDUM # 1 Please modify or amend Contract Documents as follows: 1. The closing date and time: December 16, 1993 at 2:00 P.M. 2. The prcbid conference will be held on the 9th ft of December. 1993, at 10:00 a.m.. Conference Room #108. Municipal Building, 1625 13th Street. Lubbock. Texas. All requests for additional information or clarification concerning this bid should be submitted in writing and directed to Ron Shuffield, Senior Buyer. THANK YOU, Ron Shuffield Senior Buyer PLEASE RETURN ONE COPY WITH YOUR BID CITY OF LUBBOCK, TEXAS SPECIFICATIONS AND CONTRACT DOCUMENTS FOR 1994 STREET MAINTENANCE PROGRAM David Langston, Mayor City Council Victor Hernandez Max Ince T.J. Patterson Randy Neugebauer M.J. "Bud" Adderton Alex "Ty" Cook Bob Cass, City Manager Larry Hoffman, Director of Transportation Street Department r A INDEX NOTICE TO BIDDERS ADVERTISEMENTS FOR BIDS I+ GENERAL INSTRUCTION TO BIDDERS (SECTION 1) Page 1. Scope of Work I-1 2. Contract Documents I-1 3. Plans For Use by Bidders I-1 4. Time and Order for Completion I-1 5. Payment I-2 6. Affidavits of Bills Paid I-2 7. Materials and Workmanship I-2 C 8. Guarantees I-3 9. Plans for the Contractor I-3 10. Protection of the Work I-3 .. 11. Texas State Sales Tax I-4 12. Protection of Subsurface Lines and Structures I-4 13. Barricades and Safety Measures I-4 14. Explosives I-5 15. Contractor's Representative I-5 16., Insurance I-5 �- 17. Provisions Concerning Escalator Clauses I-6 18. Preparation or Proposal I-6 ' 19. Bound Copy of Contract Documents I-7 PM 20. Working Hours I-7 P 21. Subcontractor I-8 LIST OF SUBCONTRACTORS i BID PROPOSAL i CONTRACT PAYMENT BOND PERFORMANCE BOND CERTIFICATE OF INSURANCE r GENERAL CONDITIONS OF THE AGREEMENT (SECTION II) r. 1. Owner II-1 d 2. Contractor II-1 3. Owner's Representative II-1 4. Contract Documents II-1 r' } 5. Interpretation of Phases II-1 6. Subcontractor II-2 7. Written Notice II-2 8. Work II-2 9. Substantially Completed II-3 10. Layout of Work II-3 11. Keeping of Plans and Specifications Accessible II-3 12. Right of Entry II-3 13. Lines and Grades II-4 14. Owner's Representative's Authority and Duty II-4 15. Superintendence and Inspection II-5 16. Contractor's Duty and Superintendence II-5 17. Contractor's Understanding II-5 18. Character of Workers 11-6 19. Construction Plant II-6 20. Sanitation II-6 21. Observation and Testing II-7 22. Defects and Remedies II-8 23. Changes and Alterations II-8 24. Extra Work II-9 25. Discrepancies and Omissions II-10 26. Right of Owner to Modify Methods and Equipment II-10 27. Protection Against Accident to Employees and the Public II-11 28. Contractor's Insurance II-12,13 29. Protection Against Claims of Subcontractors, Laborers, Materialmen, Furnishers of Machinery, equipment & Supplies II-13 30. Protection Against Royalties or Patent Invention II-14 31. Laws and Ordinances II-14 32. Assignment and Subletting II-15 33. Time of Completion and Liquidated Damages II-15 34. Time and Order of Completion II-16 35. Extension of Time II-16 36. Hindrance and Delays II-17 37. Quantities and Measurements II-17 38. Protection of Adjoining Property II-18 39. Price for Work II-18 40. Payments II-18 41. Partial Payments II-19 42. Final Completion and Acceptance II-19 43. Final Payment II-19 44. Correction of Work Before Final Payment for Work II-20 45. Correction of Work After Final Payment II-20 46. Payment Withheld II-20 47. Time of Filing Claims II-21 48. Arbitration I1-21 t t- 49. Abandonment by Contractor II-22,23 50. Abandonment by Owner II-24 51. Bonds II-25 52. Special Conditions II-25 53. Losses from Natural Causes II-25 54. Independent Contractor II-26 55. Cleaning up II-26 SPECIAL CONDITIONS (SECTION III) 1. Changes in the Work III-1 2. Superintendence III-1 3. Prosecution of Work III-2 4. Barricades & Danger, Warning, Detour Signs & Traffic Handling III-3 5. Maintenance of Detours III-4 6. Public Safety and Convenience III-4 7. Water III-5 8. Restrictions and Requirements for Construction III-5,6,7 9. Removing Obstructions III-8 10. Test of Materials III-8 11. Subcontractor III-9 12. Underground Utilities III-10 13. Partial Payment III-10 14. Correction of Work After Final Payment III-10 15. Labor III-11 Wage Rates List of Street Improvements MATERIALS OF CONSTRUCTION (SECTION IV) 1. GENERAL (Concrete) IV-1 2. CONCRETE IV-1 A. Cement IV-1 B. Aggregate IV-1 C. Water IV-2 D. Concrete Materials Test IV-2 E. Concrete Design IV-3 F. Classification IV-4 G. Mixing IV-5 H. Curing IV-5 3. STEEL REINFORCING IV-5 A. Wire Mesh IV-5 B. Bar Reinforcing IV-6 4. JOINT MATERIAL IV-6 A. Expansion Joint Materials IV-6 B. Joint Sealing Material IV-6 i 5. FORMS IV-6 6. FLEXIBLE BASE (CALICHE) IV-7 A. Description IV-7 B. Material IV-7 7. ASPHALT STABILIZED BASE -PLANT MIX (THD ITEM 292 ) IV-7 A. Description IV-8 B. Materials IV-8 C. Asphaltic Materials IV-9 8. MIXING PLANTS - EOUIPMENT (BLACK BASE & HOT MIX) IV-10 A. Weigh Batch Type IV-10-12 B. Continuous Mixing Type IV-13,14' C. Drum Mix Plant IV-15,16 D. Asphaltic Material Heating Equipment IV-17 E. Spreading & Finishing Machine IV-17 F. Rollers IV-18,19 G. Stockpiles, Storage, Proportioning & Mixing IV-20-22 H. Construction Methods IV-23,24 I. Compacting IV-25 J. Surface Finish IV-26 K. Protection of the Work & Opening to Traffic IV-26 L. Surface Density Test IV-26 9. ASPHALTS IV-26 10. HOT MIX ASPHALTIC CONCRETE SURFACE IV-27 A. Aggregate _ IV-27,28 B. Asphaltic Material IV-29 C. Paving Mixtures IV-30 D. Laboratory Control IV-31 E. Tolerances IV-32 F. Extraction and Gradation Tests IV-33 11. SILO STORAGE IV-34 12. BARRICADES AND SIGNS IV-34 13. SEAL COAT AND TWO -COURSE MAINTENANCE IV-35 A. General (Two -Course) IV-35 B. Asphalt IV-35 C. Asphalt Heaters IV-35 D. Aggregates for Seal and Two -Course Purposes IV-36 DETAILS OF CONSTRUCTION (SECTION V) 1. CONCRETE V-1 A. Curb and Gutter (Class A Concrete) V-1-5 B. Reinforced Concrete 30" Separate Gutter (Class E Concrete) V-5 C. Reinforced Concrete Valley Gutters (Class C & E Concrete) V-5 D. Reinforced Valley Paving Slab & Alley Returns (Class E Concrete) V-6-8 E. Reinforced Concrete Median Curb (Class A Concrete) V-7 F. Reinforced Concrete Railroad Crossing (Class F Concrete) V-9 G. Reinforced Concrete Drainage Slabs (Class A Concrete) V-10 H. Concrete Pavement (Class C Concrete) V-10-22 I. Concrete Mixing and Placing V-22-30 2. EARTH WORK V-30 A. Subgrade Preparation for curb and gutter, streets,paving, (asphalt and concrete), alley returns, alley paving, valley & gutters, and earth work. V-30-33 d B. Embankment V-33-36 3. BASE COURSE V-36 A. Hauling and Placing V-37 B. Processing V-37 C. Finishing V-38 4. HOT MIX ASPHALTIC CONCRETE SURFACE V-39 A. Description V-39 Temperature Requirements V-39-45 5. CLEANUP V-45 6. PROTECTION OF EXISTING UTILITIES V-46 A. Adjustments of Valves and Manholes V-46 B. Installation, Adjustments, and Protection of Utilities and Traffic Installation V-46-48 7. SALVAGING AND REPLACING BASE V-49 A. Description V-49 B. Construction Methods V-49 f 8. SALVAGING AND STOCKPILING BASE MATERIAL V-50 "- A. Description V-50 B. Construction Methods V-50 4 . 9. SEALING AND TWO -COURSE SURFACE TREATMENT A. Preparation of Surface B. Handling and Applying Asphalt C. Rate of Application of Materials D. Handling and Applying Aggregates E. Handling & Applying Asphalt & Aggregates for Night Work F. Required Rolling (1 hour per 1000 S.Y. of Surface Sealed) G. Patching Ahead of Seal or Two -Course Maintenance H. Cleanup SITE WORK METHODS AND PAYMENT (SECTION VI) GENERAL 1,2 & 3 Asphalt Applied for Sealing and Two -Course 4 & 5 Aggregate for Seal Coat & Two -Course 6 Patching with 3" of Black Base 7 Patching with 6" of Black Base 8 Patching with 9" of Black Base 9 Patching with 6" of 3-Sack Stabilized Caliche 10 Patching with 1-1/2 inches of hot -mix 11 Curb and Gutter 12 Valley Gutter 13 4" Sidewalk and Driveway Adjustment CONSTRUCTION DETAIL ILLUSTRATIONS 1. Trailer Mounted Sign 2. Type "A" Barricade 3. Panel Barricade 4. Construction Signs 5. Flagmen Detail V-50 V-50 V-50,51 V-52 V-52 V-53 V-53 V-54 V-55 1 1 1 1 2 2 2 2 3 3 NOTICE TO BIDDERS 7 I NOTICE TO BIDDERS BID #12765 Sealed proposals addressed to Ron Shu.ffield, Senior Buyer, City of Lubbock, Texas, will be received at the office of the Purchasing Manager, 1625 13th St., Room L-04, Lubbock, Texas, 79401, until PA on the 16th day of December, 1993, to furnish all labor following described project: 1994 Street Maintenance Program After the expiration of the time and date above first written, said sealed proposals will be opened by the Purchasing Manager at his office and publicly read aloud. It is the sole responsibility of the bidder to insure that his bid is actually in the office of Ron Shuffield, Senior Buyer for the City of Lubbock, prior to the expiration of the date above first written. . The City Council will consider the bids on the 13th day of January, 1994 at Municipal Bldg., Lubbock, Texas. or as soon thereafter as may be reasonably convenient, subject to the right to reject any or all bids and waive any formalities. The successful bidder will be required to furnish a performance bond and payment bond in accordance with Article 5160, Vernon's Ann. Civil St., in the amount of 100% of the total contract price in the event that said contract price exceeds $25,000.00. If the contract price does not exceed $25,000.00 the said statutory bonds will not be required. Bidders are required, whether or not a payment or performance bond is required, to submit a cashier's or certified check issued by a bank satisfactory to the City of Lubbock, or a proposal bond from a reliable surety company, payable without recourse to the order of the City of Lubbock in an amount not less than 5% of the 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. The plans, specifications, proposal forms and contract documents may be examined at the office of the Purchasing Manager for the City of Lubbock, Texas. r` 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 advertisements, 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, or national origin in consideration for an award. There will be a pre -bid conference on the 9th day of December, 1993, Conference Room #108, Municipal Building, 1625 13th Street. CITY OF LUBBOCK B R ASheel City of Lubb6ck Purchasing Department i CADVERTISEMENTS FOR BIDS BID #12765 Sealed proposals addressed to Ron Shuffield, Senior Buyer, City of Lubbock, Texas. will be received at the office of the Purchasing Manager, Municipal Building, 1625 13th Street, Room L-04, Lubbock, Texas. 79401 until 10:00 A.M. on the 16th day of December, 1993, to furnish all labor and materials and perform all work for the construction of the following described project: 1994 STREET MAINTENANCE PROGRAM After the expiration of the time and date above for written, said sealed proposals will be opened by the Purchasing Manager at his office and publicly read aloud. r- The plans, specifications, proposal forms and contract documents may be examined at the office of the Purchasing Manager for the City of 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 such wage scales and payment by the Contractor of the prevailing rates of wages as heretofore established by the City of Lubbock The City of Lubbock hereby notifies all bidders that in regard to any contract entered into pursuant to this advertisements, 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, or national origin in consideration for an award. There will be a pre -bid conference on the 9th day of December. 1993, Conference Room #108, Municipal Building, 1625 13th Street. Y: n Sh el d City of Lubbock Purchasing Department GENERAL INSTRUCTIONS TO BIDDERS 7 L GENERAL INSTRUCTION TO BIDDERS 1. SCOPE OF WORK The work to be done under the contract documents shall consist of the following: sealing and two -course maintenance and patching. The Contractor shall furnish all labor, superintendence, machinery, equipment and all materials necessary to complete this project in accordance with contract documents. 2. CONTRACT DOCUMENTS *., All work covered by this contract shall be done in accordance V with contract documents described in the General Conditions. U 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 u' 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 or forfeiture of deposit. The contract documents may be examined without charge as noted in the Notice to Bidders. 4. TIME AND ORDER FOR COMPLETION The construction covered by the contract documents shall be fully completed within the time schedule described below, and as set forth in the Bid Proposal - Bid for Unit Price. (A) The patching, with locations and materials as �^ designated by the City's representative, may begin as soon as the Contractor receives the Notice to Proceed. (B) The sealing and two -course application shall not begin until June 1, 1994, and shall be completed by September 1, 1994. All sealing and two -course application shall cease on k. September 1, 1994. All remaining streets or designated areas not completed shall be carried -over and completed after June 1, 1995, at the original bid price. The Contractor shall 5. 6. 7. pay to the owner $200.00 per day for each calendar day after September 1, 1994, until acceptance of the project as liquidated damages. No credit will be given for bad weather days or other delays occuring before September 1, 1994. Any additional base failures, those in addition to the areas originally marked and measured by the Owners's Representative, that appear after September 1, 1994, and before the sealing and two -course is applied in 1995, shall be the responsibility of the Contractor. The Contractor shall make a prompt and diligent effort to repair, these failures, and shall bear all expense related to the repair of these additional failures. The Contractor shall submit, within two weeks after the award of the contract, a progress schedule of the work contemplated by the contract documents. In the event 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. PAYMENT All payments due to Contractor shall be made in accordance with the provisions of the General Conditions of the contract documents. AFFIDAVITS OF BILLS PAID The City of Lubbock, prior to final acceptance of this project, requires the Contractor to execute an affidavit that all bills for labor, materials and incidentals incurred in the construction of the improvements contemplated by the contract documents have been paid in full and that there are no claims pending, of which the Contractor has been notified. 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 construction 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 I-2 t standards of quality which the Owner believes necessary to procure a satisfactory project. 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 r, final approval given by the City Engineer. 8. GUARANTEES All equipment and materials incorporated in the project and all construction shall be guaranteed against defective materials and workmanship. Prior to final acceptance, the Contractor shall 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). 9. PLANS FOR THE CONTRACTOR The Contractor will be furnished five (5) sets of drawings, specifications, and related contract documents for his use during construction. Plans and specifications for use during construction will only be furnished directly to the Contractor. The Contractor shall then distribute copies of plans and specifications to suppliers, subcontractors, or others, as required for proper prosecution of the work contemplated by the Contractor. 10. PROTECTION OF THE WORK The Contractor shall be responsible for the care, preservation, conservation, and protection of all materials, supplies, machinery, equipment, tools, apparatus, accessories, facilities, and all means of construction, and any and all parts of the work, whether the Contractor has been paid, partially paid, or not paid for such work, until the date the City issues its certificate of completion to the Contractor. The City reserves the right, after the bids have been opened and before the contract has been awarded, to require a bidder the following information: (A) The experience record of the bidder showing completed jobs of a similar nature to the one covered by the proposed contract and all work in progress with bond amounts and percentage completed. 7 6 I-3 ram. (B) A sworn statement of the current financial condition of the bidder. (C) Equipment schedule. 11. TEXAS STATE SALES TAX This contract is issued by an organization which qualifies for exemption provisions pursuant to provisions of Article 20.04 of the Texas Limited Sales, Excise and Use Tax Act. The Contractor must obtain a limited sales, excise and use tax permit which shall enable him to buy the materials to be incorporated into the work without paying the tax at the'time of purchase. 12. PROTECTION OF SUBSURFACE LINES AND STRUCTURES It shall be the Contractor's responsibility to prosecute the work contemplated by the contract documents in such a way as to exercise due care to locate and prevent damage to all underground pipelines, utility lines, conduits or other underground structures which might or could be damaged by the Contractor during the construction of the project contemplated by these contract documents. The City of Lubbock agrees that it will furnish the Contractor, upon request, the location of all such underground lines and utilities of which it has knowledge. However, such fact shall not relieve the Contractor of his responsibilities aforementioned. All such underground lines or structures cut or damaged by the ^ Contractor during the prosecution of the work contemplated by this contract shall be repaired immediately by the Contractor to the satisfaction of the City of Lubbock, Texas, at the Contractor's expense. 13. BARRICADES AND SAFETY MEASURES The Contractor shall, at his own expense, furnish and erect such barricades, fences, lights, and danger signals, and shall take such other precautionary measures for the protection of persons, property and the work as may be necessary. The Contractor will be held responsible for all damage to the work due to failure of barricades, signs, and lights to protect it, and when damage is incurred, the damaged portion shall be immediately removed and replaced by the Contractor at his own expense. The Contractor's responsibility for maintenance of barricades, signs, and lights shall not cease until the date of issuance to the Contractor of City's certificate of acceptance of the project. I-4 i. r 14. EXPLOSIVES f The use of explosives will not be permitted unless written permission to do so is obtained by the Contractor from the City. In all cases where written permission is, obtained for the use of explosives, the Contractor shall assume full responsibility for all damage which may occur as a direct or indirect result of the blasting. In addition ,in all cases where explosives are authorized to be used, the Contractor shall use utmost care so as not to endanger life or property and the Contractor shall further use only such methods as are currently utilized by persons, firms, or corporations engaged r in similar type of construction activity. Explosive materials shall not be stored or kept at the construction site by the Contractor. In all cases where explosives are to be used during the construction of the project contemplated by this contract, it shall be the duty of the Contractor to notify each utility 1" company having structures (above or below the ground) in proximity to the site of the work of the Contractorfs 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 operation. 15. CONTRACTORS REPRESENTATIVE The successful bidder shall be required to have a responsible local representative available at all times while the work is in progress under this contract. The successful bidder shall be required to furnish the name, address and telephone number where such local representative may be reached during the time that the work contemplated by this contract is in progress. 16. INSURANCE The Contractor shall not commence work under this contract until he has obtained all insurance as required in the General 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 rights to r- subrogation. i I-5 The insurance certificates furnished shall name the City as an additional insured and shall further state that all subcontractors are named as additional insured, 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. 17. PROVISIONS CONCERNING ESCALATOR CLAUSES Proposals submitted containing any conditions which provide for changes in the stated bid price due to increases or decreases in the cost of materials, labor or other items required for the project will be rejected and returned to the bidder without being considered. 18. PREPARATION OF PROPOSAL The bidder shall submit his proposal 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 proposes to do the work contemplated or furnish the materials required. Such prices shall be written in ink, distinctly and legibly, or typewritten. In case of discrepancy between the price written in words and the price written in figures, the price written in words shall govern.'If the proposal is submitted by an individual, his name must be signed by him or his duly authorized agent. If a proposal is submitted by a firm, association, or partnership, the name and address of each member must be given and the proposal signed by a member of the firm, association or partnership, or person duly authorized. If the proposal is submitted by a company or corporation, the company or corporate name and business address must be given, and the proposal signed by an official or duly authorized agent. Powers of attorney authorizing agents or others to sign proposals must be properly certified and must be in writing and submitted with the proposal. The proposal shall be executed in ink. Each proposal shall be enclosed in a sealed envelope, addressed as specified in the Notice to Bidders, and endorsed on the outside of the envelope in the following manner: (A) Bidder's name. (B) Proposal for (description of the project). Bid proposals may be withdrawn and resubmitted at any time prior to the time set for opening of the bids, but no proposal may be withdrawn or altered thereafter. I-6 I r 19. BOUND COPY OF CONTRACT DOCUMENTS Bidder understands and agrees that the contract to be executed by bidder shall be bound and include the following: (A) Notice to Bidders. (B) General Instructions to Bidders. (C) Bidder's Proposal and List of Subcontractors. (D) Statutory Bond (if required). (E) Contract Agreement. (F) General Conditions. (G) Special Conditions (if any). (H) Specifications. (I) Insurance Certificates. (J) All other documents made available to bidder for his inspection in accordance with the Notice to Bidders. If plans and Specification are too bulky or cumbersome to be physically bound, they are to be considered incorporated by reference into the aforementioned contract documents. 20. WORKING HOURS 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 the 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 the 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. 1-7 t' 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 the day, to correct or alleviate such conditionsothat it is no longer dangerous to property or life. No work will be allowed from November Ist through January 2nd unless approved by the Engineer. 21. SUBCONTRACTOR The Contractor may utilize the services of specialty subcontractors on those parts of the work which, under normal contracting practices, are performed by specialty 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 regards 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 the Contractor for any payments due the subcontractor. The Contractor is required to list the subcontractors to be utilized on the work on the forms included in these documents. This form shall be completed and submitted with the Bidder's Proposal. I-8 BID PROPOSAL BID PROPOSALS BID FOR UNIT PRICE PLACE: DATE: 11- it, - T3 PROJECT NO: Proposal of (hereinafte 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 sealing j' and two -course asphalt surface on existing streets, having carefully 11 examined the plans, specifications, instructions to bidders, notice to bidders and all other related contract documents and the site of the proposed work, and being familiar with all of the conditions surrounding the construction of the proposed work, and being familiar with all of the conditions surrounding the construction of the proposed project including the availability of materials and labor, hereby proposes to furnish all labor, materials, and supplies; and to construct the project in accordance with the plans, specifications and contract documents, within the time set forth therein and at the prices stated in Exhibit r, ttAtt . The bidder binds himself on acceptance of his proposal 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" on this proposal. After the contract is awarded, the bidder will furnish the Street Superintendent, within two weeks, a list of the above units as to the starting and completion date on each unit listed in the contract. The Superintendent will set certain priorities on the order of the streets to be reconstructed. Bidder hereby agrees to commence the work on the above project on or before a date to be specified in a written "Notice to Proceed" of the Owner and to fully complete the sealing and two -course asphalt surface between June 1, 1994 and September 1, 1994. The Bidder further agrees that all two -course application shall cease on September 1, 1994; and that all remaining streets or designated areas not completed shall be carried -over and completed after June 1, 1995, at the original bid price. The Bidder also agrees to pay the Owner as liquidated damages, the sum of $200.00 (two -hundred dollars) for each consecutive calendar day starting on September 2, 1994, and ending on the day of acceptance of the project by the City Council. Bidder hereby certifies that he is aware of and agrees to no credit being given on the liquidated damages k t'e r A Y. r for bad weather days, materials supply difficulties or other delays occurring before September 1, 1994. Any additional base failures, those in addition to the areas originally marked and measured by the Owner's r. Representative, that appear after September 1, 1994; and before the sealing and two -course is applied in 1995, shall be the responsibility of the Contractor. The Contractor shall make a prompt and diligent PM effort to repair these failures, and shall bear all expenses related to I the repair of these additional failures. Bidder, understands and agrees that this bid proposal shall be completed and submitted in accordance with instruction number 20 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 undersigned Bidder hereby declares that he has visited the site of the work and has carefully examined the plans, specifications, and contract documents pertaining to the work covered by this bid, and he further agrees to commence work on or before the date specified in the written notice to proceed, and to substantially complete the work on which he has bid; as provided in the contract documents. Enclosed with this proposal is a Cashier's Check or Certified Check for Dollars ) or a Proposal Bond Poo in the sum of Sale aih;d Dollars ( ), which it is agreed s a a collected nnd retained y the Owner as liquidated damages in the event the proposal 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 proposal; otherwise said check or bond shall be returned to the undersigned upon demand. Bidder understands and agrees that the contract to be executed by Bidder shall be bound and include all contract documents made available to him for his inspection in accordance with the Notice to Bidders. (Seal if Bidder is a Corporation) ATTEST: Jn/ reta y v r EXHIBIT A, PAGE 1 BID PROPOSAL BID OF UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount ------------------------------------------------------------------------------------- 1. (a) 191,200.0 GALS. AC-5 polymerized asphalt +3% latex by volume (2% by weight); for course #1, MATERIALS ONLY; per gallon; _Xa DOLLARS ($ laf } jid CENTS r`�'6,. f X (b) 191,200.0 GALS. Application of Item 1(a), including all items such as labor, equipment, preparation of existing surface, etc.; per gallon; DOLLARS ($ j CENTS 57, 3(00 1 (c) 191,200.0 GALS. Total in -place cost for Items 1(a) and 1(b); per gallon; ` DOLLARS ($ CENTS 2. (a) 242,185.0 GALS. AC-5 polymerized asphalt +3% latex by volume (2% by weight); for course #2, MATERIALS ONLY; per gallon; DOLLARS ($qo LJ CENTS (b) 242,185.0 GALS. Application of Item 2(a), including all items such as labor, equipment, preparation of of existing surface, etc.; per gallon; DOLLARS ($ ,21 ) CENTS $ I U!55j . EXHIBIT A, PAGE 2 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount --------------------------------------------------------------------------------------- (c) 242,185.0 GALS. Total in -place cost for Items 2(a) and 2(b); per gallon; DOLLARS ($ , $9 CENTS �155'y4.G5` ' 3. (a) 78,437.0 GALS. AC-5 polymerized asphalt +3% latex by volume (2% by weight); for Single Course, MATERIALS ONLY; per gallon; DOLLARS ($ CENTS 53, 33 (b) 78,437.0 GALS. Application Item 3(a), including all items such as labor, equipment, preparation of existing surface; per gallon; z DOLLARS ($ I� ) CENTS (c) 78,437.0 GALS. Total in -place cost for Items 3(a) and 3(b); per gallon; Lj (o DOLLARS ($ �' ) - L CENTS 4. (a) 10,183.0 C.Y. Surface aggregate (THD P.B. Grade No. 4 pre -coated crushed gravel, with a minimum of 90% crushed faces and meeting soundness tests, or, precoated crushed stone meeting sliver count and soundness tests) including loading and freight at stockpiles in the City of Lubbock, MATERIALS ONLY; per cubic yard; 41 DOLLARS $, CENTS53, `75u, 6 EXHIBIT A, PAGE 3 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & !Unit Price Amount ---------------------------------------------------------------------------------------- (b) 10,183.0 C.Y. Application of Item No. 4(a), including all items such as labor, equipment, unloading, brooming, blading, and rolling (one hour per 1000 square yards); per cubic yard; DOLLARS ($ CO CENTS (c) 10,183.0 C.Y. Total in -place cost for Items 4(a) and 4(b); per cubic yard; DOLLARS ($ CENTS `7'), r 4 j . i ... 5. (a) 10,278.0 C.Y. Surface aggregate (THD P.B. Grade No. 2 pre -coated crushed gravel, with a minimum of 90% crushed faces and meeting soundness tests, or, precoated crushed stone meeting sliver count and soundness tests) including loading and freight at stockpiles in the City of Lubbock, MATERIALS ONLY; per cubic yard; 1 DOLLARS ($ . Sv ) 0 6r CENTS $ -3qL at . (b) 10,278.0 C.Y. Application of Item No. 5(a), including all items such as labor, equipment, unloading, brooming, blading, and rolling (one hour per 1000 square yards); per cubic yard; DOLLARS CENTS (c) 10,278.0 C.Y. Total in -place cost for Items 5(a) and 5(b); per cubic yard; DOLLARS ($ 3 ,: © ) {. C CENTS EXHIBIT A, PAGE 4 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount --------------------------------------------------------------------------------------- 6. (a) 3,000.0 S.Y. Patching with Black Base, 3" depth (excavation of 4 1/2", with replacement of 3" black base and 1 1/2" Type "C" Hot Mix); MATERIALS ONLY; per square yard; t_ DOLLARS $ r� la. CENTS 17, (b) 3,000.0 S.Y. Installation of Item 6(a), including all items such as labor, equipment, removal and disposal of asphalt surface, caliche base, and subgrade (if soft or unstable) to a depth of 4 1/2" and replacing with 3" of black base and 1 1/2" of Type "C" Hot Mix; per square yard; ��- DOLLARS ($} ` CENTSD,oA�.`� fIM (c) 3,000.0 S.Y. Total in -place cost for Items 6(a) and 6(b); per square yard; JL —1 ,. DOLLARS ($PW ) CENTS 5�, vrc7.�'o (a) 12,000.0 S.Y. Patching with Black Base, 6" depth (excavation of 7 1/2", with replacement of 6" black base and 1 1/2" Type "C" Hot Mix); MATERIALS ONLY; per square yard; DOLLARS ($ U `'D } CENT /.�o,vay.`�° T (b) 12,000.0 S.Y. Installation of Item 7(a), including all items such as labor, equipment, removal and disposal of asphalt surface, caliche base, and subgrade (if soft or unstable) to a depth of 7 1/2" and replacing with 6" of black base and 1 1/2" Type "C" Hot Mix; per square yard; DOLLARS ($g ,50 ) CENTS EXHIBIT A, PAGE 5 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities No. & Units Description of Item & Unit Price ------------------------------.._---------------------------------_-_-_---- (c) 12,000.0 S.Y. Total in -place cost for Items 7(a) and 7(b); per square yard; r DOLLARS ($ I c^ CENTS 8. (a) 1:,000.0 S.Y. Patching with Black Base, 9" depth (excavation of 10 1/2", with replacement of 9" black base and 1 1/2" Type "C" Hot Mix), MATERIALS ONLY; per square yard; DOLLARS ($_) % CENTS (b) 1,000.0 S.Y. Installation of Item 8(a), including all items such as labor, equipment, removal and disposal of asphalt surface, caliche base, and subgrade (if soft or unstable) to a depth of 10 1/2" and replacing with 9" of black base and 1 1/2" of Type "C" Hot Mix; per square yard; In DOLLARS ($_) CENTS j— (c) 1,000.0 S.Y. Total in -place cost for Items 8(a) and 8(b); pe�rj square yard; DOLLARS ($_j CENTS 31) S$ -71, 5L. Li 9. (a) 500.0 S.Y. Patching with 3 sack cement stabilized caliche, 6" depth, (excavation of 7 1/2", with replacement of 6" of 3 sack cement stabilized caliche and 1 1/2" Type "C" Hot Mix); MATERIALS ONLY; per square yard; DOLLARS ($ %0 ,?� ) AU) CENTS Total Amount EXHIBIT A, PAGE 6 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount --------------------------------------------------------------------------------------- (b) 500.0 S.Y. Installation of Item 9(a), including all items such as labor, equipment, removal and disposal of asphalt surface, caliche base, and subgrade (if soft or unstable) to a depth of 7 1/2" and replacing with 6" of 3 sack cement stabilized base and 1 1/2" Type "C" Hot Mix; per square yard; ' rb DOLLARS ($_) CENTS (c) 500.0 S.Y. Total in -place cost for Items 9(a) and 9(b); per square yard; DOLLARS ($ I�• ) CENTS q,000.`� $ �' 10. (a) 7,000.0 S.Y. Patching with 1 1/2" Type "C" A. C. pavement with approved crushed stone or approved crushed gravel, MATERIALS ONLY; per square yard; 0 `1 b'fe- DOLLARS ($ ..3° ) '740 CENTS '�),or'j�.`9 (b) 7,000.0 S.Y. Installation of Item 10(a), including all items such as labor, equipment, removal and disposal of existing surface (if applicable), including prime and tack coat; per square yard; ` DOLLARS ($ na j CENTS (c) 7,000.0 S.Y. Total in -place cost for Items 10(a) and 10(b); per square yard; �tiflvuc_ DOLLARS ($ C Lo ) h.o CENTS 000 °0- EXHIBIT A, PAGE 7 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount --------------------------------------------------------------------------------------- 11. (a) 400.0 L.F. Curb and Gutter: 6" concrete, Class E (3,000 psi @ 7 days), 30" wide separate gutter or sawtooth curb and gutter; MATERIALS ONLY; per linear foot; c-p c_ DOLLARS ($ �. ) Fj& CENTS (b) 400.0 L.F. Installation of Item 11(a), including all items such as labor, equipment, removal and disposal of existing C & G, subgrade preparation, complete in place, with location as directed by the Engineer; per linear foot; c- ,,,� . DOLLARS ($ CENTS j��67'' (c) 400.0 L.F. Total in -place cost for Items 11(a) and 11(b); pe�r7linear foot; DOLLARS ($) s JOD7 u3£ rCt� CENTS $ riDJ�__ 12. (a) 1,500.0 S.Y. Valley Gutter: 8" reinforced Class C concrete (3,600 psi/28 days)(6x6-6/6 wire reinforcement); MATERIALS ONLY; per square yard; -� DOLLARS ($�p`� } CENTS 14, (b) 1,500.0 S.Y. Installation of Item 12(b), including all items such as labor, equipment, removal and disposal of existing valley gutter, subgrade preparation, complete in place with location as directed by the Engineer; per square yard; DOLLARS . G. $ ( ) CENTS )B,S� EXHIBIT A, PAGE 8 BID PROPOSAL BID FOR UNIT PRICE CONTRACTS 1994 Maintenance Program Item Quantities Total No. & Units Description of Item & Unit Price Amount --------------------------------------------------------------------------------------- (c) 1,500.0 S.Y. Total in -place cost for Items 12(a) and 12(b); per square yard; DOLLARS ($ .35 ) No CENTS zj,5w t`d 13. (a) 500.0 S.Y. 4" Class A Concrete sidewalk and driveway adjustment (3,000 psi/28 days), reinforced with 6x6 6/6 wire; MATERIALS ONLY; per square yard; �a DOLLARS ($�_) CENTS q, 001) s (b) 500.0 S.Y. Installation of Item 13(a), including all items such as labor, equipment, removal and disposal of existing sidewalk and/or driveway, subgrade preparation, complete in place with location as directed by the Engineer; per square yard; co DOLLARS ($ JD. -- CENTS ) �+ lD ON Ca (c) 500.0 S.Y. Total in -place cost for Items 13(a) and 13(b); per square yard; t� ,f DOLLARS ($�) �� f �uv4,ca ,f• `�'�;= CENTS EXHIBIT A, PAGE 9 BID PROPOSAL BID OF UNIT PRICE CONTRACTS 1994 Maintenance Program Total for Items 1(a) through 13(a) MATERIALS ONLY $ OL6 4S3 Total for Items 1(b) through 13(b) LABOR, EQUIPMENT, ETC. $ e,9 4 Total for Items I(c) through 13(c) $ �,`341 ,� r r LIST OF SUBCONTRACTORS This form is to be completed and submitted with the Bidder's Proposal. 1. Z �re 2. 3. 4. 5. 6. 7. 8. 9. 10. I-9 1-" 1) 7 BID BOND Know all men by these presents: That RUNNIE ZAHN PAVING, LNC. (hereinafter called the Principal) as Principal, and the MERCHANTS BONDING COMPANY (Mutual) a corporation of the State of Iowa, with its Home Office in the City of Des Moines, Iowa, (hereinafter called Surety), as Surety, are held and firmly bound to CITY OF LL13BOCX (hereinafter called the Obligee) in the full and just sum of ($ 5% of greatest amount bid ) Dollars good and lawful money of the United States of America, to the payments of which sum of money well and truly to be made, the said Principal and Surety bind themselves, their and each of their heirs, executors, administrators, successors and assigns, jointly and severally, firmly by these presents. Signed, sealed and dated this 16th day of December 16 93 . THE CONDITION OF THIS OBLIGATION IS SUCH, that, if the Obligee shall make any award to the Principal for 1994 Street fbintenance Program according to the terms of the proposal or bid made by the Principal therefor, and the Principal shall duly make and enter into a contract with the Obligee in accordance with the terms of said proposal or bid and award, and shall give bond for the faithful performance thereof with the MERCHANTS BONDING COMPANY (Mutual) and Surety, or with other Surety or Sureties approved by the Obligee; or if the Principal shall, in case of failure to do so, pay to the Obligee the damages which the Obligee may suffer by reason of such failure, not exceeding the penalty of this bond, then this obligation shall be null and void; otherwise it shall be and remain in full force and effect. IN TESTIMONY WHEREOF, the Principal and Surety have caused these presents to be duly signed and sealed. Witness: G` a Attest: Ronnie Z,alm Paving, Inc. Prinyi 1 ByI7/l MERCHANTS BONDING COMPANY (Mutual) / w - i F r Merchants Bonding Company (Mutual) POWER OF ATTORNEY Know All Men By These Presents, that the MERCHANTS BONDING COMPANY (Mutual), a corporation duly organized under the laws of the State of Iowa, and having its principal office in the City of Des Moines, County of Polk, State of Iowa, hath made, constituted and appointed, and does by these presents make, constitute and appoint William K. Gilmore, Kerry W. Gilmore, Elizabeth Gilmore, Frederick G. Wisby or Barbara K. Wisby of Lubbock and State of Texas its true and lawful Attorney -in -Fact, with full power and authority hereby conferred in its name, place and stead, to sign, execute, acknowledge and deliver in its behalf as surety: Any or all bonds or undertakings provided that no bond or undertaking executed under this authority shall exceed in amount the sum of FIVE HUNDRED THOUSAND ($500,000.00) Dollars and to bind the MERCHANTS BONDING COMPANY (Mutual) thereby as fully and to the same extent as if such bond or undertaking was signed by the duly authorized officers of the MERCHANTS BONDING COMPANY (Mutual), and all the acts of said Attorney, pursuant to the authority herein given, are hereby ratified and confirmed. This Power -of -Attorney is made and executed pursuant to and by authority of the following By -Lays adopted by the Board of Directors of the MERCHANTS BONDING COMPANY (Mutual ARTICLE 2, SECTION 8. — The Chairman of the Board or President or any Vice President or Secretary shall have power and authority to appoint Atto mey-in- Fact, and to authorize them to execute on behalf of the Company, and attach the seal of the Companythereto, bonds and undertakings, recognizances, contracts of indemnityand otherwritings obligatory in the nature thereof. ARTICLE 2, SECTION 9. — The signature of any authorized officer and the Seal of the Company may be affixed by facsimile to any Power of Attorney or Certification thereof authorizing the execution and delivery of any bond, undertaking, recognizance, or other suretyship obligations of the Company, and such signature and seal when so used shall have the same force and effect as though manually fixed. In Witness Whereof, MERCHANTS BONDING COMPANY (Mutual) has caused these presents to be signed by its Vice President and President, and its corporate seal to be hereto affixed, this 12th day of March A.D., 19 93 Attest: MERCHANTS BONDING COMPANY (Mutual) By r� Vice President President STATE OF IOWA COUNTY OF POLK as, On this 12th day of March 19 93 before me appeared M.J. Long and Rodney Bliss III, to me personally known, who being by me duly sworn did say that they are Vice President and President respectively of the MERCHANTS BONDING COMPANY (Mutual), the corporation described in the foregoing instrument, and that the Seal affixed to the said instrument is the Corporate Seal of the said Corporation and that the said instrument was signed and sealed in behalf of said Corporation by authority of its Board of Directors. In Testimony Whereof, I have hereunto set my hand and affixed my Official Seal, at the City of Des Moines, Iowa the day and year first above written. .• •. � GGf/�, /S • .�� • B R V+;o /1cc. Notary Public, Polk County, Iowa r^ 3 •. IOWA . m' g kty Commission Expires [ Z ti 0T�''••• �P : STATE OF IOWA 11-4-95 r q I At- �' • COUNTY OF POLK ss. I ••••••�••••••I, M.J.Long, Vice PresidentoftheMERCHANTS BONDING COMPANY (Mutual�dohereby certify that the, boveand ttt foregoing is a true and correct copy of the POWER OF ATTORNEY, executed by said MERCHANT�NDING COMPANY (Mutual), which is still in force and effect. In WfSrs Whereof, I have hereunto set my hand and affix the seal of the Company, at •• "' �'i� �^ this 17tt1 day of December 19, �� I This power of attorney expires December 31, 1995. MSC 0814 No Text I r i CONTRACT STATE OF TEXAS COUNTY OF LUBBOCK THIS AGREEMENT, made and entered into this 13th day of January, 1994, by and between the City of Lubbock, County 7 of Lubbock, State of Texas, acting by and through David R. Langston, Mayor, thereunto authorized to do so, hereinafter referred to as OWNER, and RONNIE ZAHN PAVING, INC. of the City of LUBBOCK County of LUBBOCK, and the State of TEXAS, 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 I- agrees with OWNER to commence and complete the construction of certain improvements described as follows: F BID #12765 -1994 STREET MAINTENANCE PROGRAM FOR $1,694,698.02 0 and all extra work in connection therewith, underthe 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 F F Ir r r Condition of Agreement. The CONTRACTOR hereby agrees to commence work within ten days after the date written notice to do so shall have been given to him and to substantially complete same within the time specified in the contract documents. The OWNER agrees to pay the CONTRACTOR in current funds for the performance of the contract in accordance with the proposal submitted therefore, subject to additions and deductions, as provided in the contract documents and to make payment on account thereof as provided therein. IN WITNESS WHEREOF, the parties to these presents have executed this agreement in Lubbock, Lubbock County, Texas in the year and day first above written. APPROVED AS TO CONTENT: APPROVED AS TO • R CONTRACTOR: O PAt i a .�TITLE: -&k; COMPLETE ADDRESS: ROUTE 10, BOX 829 LUBBOCK. TEXAS 79404 r PAYMENT BOND i.. t,. r I Bond# TX486803 �(D N-Dff (a Coo 6000 N. LAMARo SUITE 200 • AUSTIN, TEXAS 78752-4497 PAYMENT BOND STATUTORY PAYMENT BOND PURSUANT TO ARTICLE 5160 OF THE REVISED CIVIL STATUTES OF TEXAS AS AMENDED BY ACTS OF THE 56TH LEGISLATURE, 1959 (McGregor Act — Public Works) (Penalty of this bond must be 100% of Contract amount) KNOW ALL MEN BY THESE PRESENTS: That, Ronnie Zahn Paving, Inc, (hereinafter called the Principal), as Principal, and MERCHANTS BONDING COMPANY (Mutual), a corporation organized and existing under the laws of the State of Iowa, with its principal office in the City of Des Moines, (hereinafter called the Surety), as Surety, are held and firmly bound unto City of Lubbock One Million Six Hundred Ninety Four -T usan , S1x (hereinafter called the Obligee) in the amount of Hundred & Ninety Eight Dollars and 02/100------ — Dollars ($ 1, 694 &9", 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 13th day of January 19 94 to Bid # 12765 — 1994 Street Maintenance Program which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at length herein. NOW THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if the said Principal shall pay all claimants supplying labor and material to him or a subcontractor in the prosecution of the work provided for in said contract, then, this obligation shall be void; otherwise to remain in full force and effect. PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article 5160 of the Revised Civil Statutes of Texas as amended by Acts of the 56th Legislature, 1959, and all liabilities on this bond to all such claimants shall be determined in accordance with the provisions of said Article to the same extent as if it were copied at length herein. I!N� WITNESS WHEREOF, the said Principal and Surety have signed and sealed this instrument this "day of 19 I Witness: (If Individual or Firm) tAttest 2r tion) BEST RATING Z LICENSED IN TEXAS I.� ; .�. (Seal) (Seal) (Seal) Principal MERCHANTS BONDING By. (Seal) ANY (.Mutual) " -- Merchants Bonding Company (Mutual) . POWER OF ATTORNEY Know All Men By These Presents, that the MERCHANTS BONDING COMPANY (Mutual), a corporation duly organized under the laws of the State of Iowa, and having its principal office in the City of Des Moines, County of Polk, State of Iowa, hath made, constituted and appointed, and does by these presents make, constitute and appoint William K. Gilmore, Kerry W. Gilmore, Elizabeth Gilmore, Frederick G. Wisby, Barbara K. Wisby of Lubbock and State of Texas its true and lawful Attorney -in -Fact, with full power and authority hereby conferred in its name, place and stead, to sign, execute, acknowledge and deliver in its behalf as surety: Any and all bonds or undertakings, provided that no bond or undertaking executed under this authority shall exceed in amount the sum of TWO MILLION($2,000,000.00) DOLLARS and to bind the MERCHANTS BONDING COMPANY (Mutual) thereby as fully and to the same extent as if such bond or undertaking was signed by the duly authorized officers of the MERCHANTS BONDING COMPANY (Mutual), and all the acts of said Attorney, pursuant to the authority herein given, are hereby ratified and confirmed. This Power -of -Attorney is made and executed pursuant to and by authority of the following By -Laws adopted by the Board of Directors of the MERCHANTS BONDING COMPANY (Mutual). ARTICLE 2, SECTION 8. — The Chairman of the Board or President or any Vice President or Secretary shall have power and authority to appoint Attorney -in -Fact, and to authorize them to execute on behalf of the Company, and attach the seal of the Company thereto, bonds and undertakings, recognizances, contracts of indemnity and otherwritings obligatory in the nature thereof. ARTICLE 2, SECTION 9. — The signature of any authorized officer and the Seal of the Company maybe affixed by facsimile to any Power of Attorney or Certification thereof authorizing the execution and delivery of any bond, undertaking, recognizance, or other suretyship obligations of the Company, and such signature and seal when so used shall have the same force and effect as though manually fixed. In Witness Whereof, MERCHANTS BONDING COMPANY (Mutual) has caused these presents to be -signed by its Vice President and President, and Its corporate seal to be hereto affixed, this 1st day of January A.D., 1993 Attest: MERCHANTS BONDING COMPANY (Mutual) t BY 1933 ; C 1"..P.dent STATE OF IOWA ••g . $t:' rw COUNTY OF POLK se. ��•' b On this 1st day of January 1993 before me appeared M.J. Long and W.G. Brundage, to me personally known, who being by me duly sworn did say that they are Vice President and Secretary/Treasurer respectively of the MERCHANTS BONDING COMPANY (Mutual), the corporation described in the foregoing instrument, and that the Seal affixed to the said instrument is the Corporate Seal of the said Corporation and that the said instrument was signed and sealed in behalf of said Corporation by authority of its Board of Directors. In Testimony Whereof, I have hereunto set my hand and affixed my Official Seal, at the City of Des Moines, Iowa the day and year first above written. ,i. ••6 10•.0660616 • 1 - q. .- N . 0 . i P L i • • Q • Notary Public, Polk County, Iowa IOWA i My Commission Expires • , `� ' 11-4-95 •'.Z01;1 * ••"1.0, • STATE OF IOWA %. 61 k� COUNTY OF POLK as. •••0....••• I, M.J. Long, Vice President of the MERCHANTS BONDING COMPANY (Mutual), do hereby certify #W th@ ve and iF foregoing is a true and correct copy of the POWER OF ATTORNEY, executed by said MVj 1T�UDING COMPANY (Mutual), which is still in force and effect. P Q ° • . o-.• In Witness Whereof, I have hereunto set my hand and affixed the seal of the Company, at • Q'°� R4 Z this 21St dayof January 19.94 December 31, 1995; 19 This power of attorney expires • • •• PERFORMANCE BOND V. . Bond M, 486803 IM®NDRNG 000 —MdUal- 6000 N. LAMAR • SUITE 200 • AUSTIN, TEXAS 78752.4497 PERFORMANCE BOND STATUTORY PERFORMANCE BOND PURSUANT TO ARTICLE 5160 OF THE REVISED CIVIL STATUTES OF TEXAS AS AMENDED BY ACTS OF THE 56TH LEGISLATURE, 1959 (McGregor Act — Public Works) (Penalty of this bond must be 100% of Contract amount) KNOW ALL MEN BY THESE PRESENTS: That Ronnie Zahn Paving, Inc. (hereinafter called the Principal), as Principal, and MERCHANTS BONDING COMPANY (Mutual), a corporation organized and existing under the laws of the State of Iowa, with its principal office in the City of Des Moines, (hereinafter called the Surety), as Surety, are held and firmly bound unto City of Lubbock. One KUla_on Sax Hundred Ninety Four Thousand, S. (hereinafter called the Obligee) in the amount of HtMdred & NinetyEight-Dollarsand 02/100------ Dollars ($ 1, 694 , 698.03, 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 13th day of January 19 94 Bid # 12765 — 1994 Street Maintenance Program which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at length herein. NOW, THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if the said Principal shall faithfully perform the work in accordance with the plans, specifications and contract documents, then this obligation shall be void; otherwise to remain in full force and effect. PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article 5160 of the Revised Civil Statutes of Texas as amended by Acts of the 56th Legislature, 1959, and all liabilities on this bond shall be determined in accordance with the provisions of said Article to the same extent as if it were copied at length herein. J.INN� WITNESS WHEREOF, the said Principal and Surety have signed and, sealed this instrument this —.Lday of /4 19� Witness: If Individual or Firm) Attest: ar .., �I BO CHECIon) BEST RATING LICENSED IN TEXAS EoDpzeZahn P g, Inc. J (Seal) 1 res (Seal) (Seal) Principal MERCHANTS BONDING C Surety By. (Seal) t (Mutual) n6Sea1) - F roll Merchants Bonding Company r (Mutual) P POWER OF ATTORNEY Know All Men By These Presents, that the MERCHANTS BONDING COMPANY (Mutual), a corporation duly organized under the laws of the State of Iowa, and having its principal office in the City of Des Moines, County of Polk, State of Iowa, hath made, constituted and appointed, and does by these presents make, constitute and appoint William K. Gilmore, Kerry W. Gilmore, Elizabeth Gilmore, Frederick G. Wieby, Barbara K. Wieby of Lubbock and State of Texas its true and lawful Attorney -in -Fact, with full power and authority hereby conferred In its name, place and stead, to sign, execute, acknowledge and deliver in its behalf as surety: Any and all bonds or undertakings, provided that no bond or undertaking executed under this authority shall exceed in amount the sum of TWO MILLION($2,000,000.00) DOLLARS ` and to bind the MERCHANTS BONDING COMPANY (Mutual) thereby as fully and to the same extent as Ifsuch bond or undertaking was signed by the duly authorized officers of the MERCHANTS BONDING COMPANY (Mutual), and all the acts of said Attorney, pursuant to ,., the authority herein given, are hereby ratified and confirmed. This Power -of -Attorney is made and executed pursuant to and by authority of the following By -Laws adopted by the Board of Directors of the MERCHANTS BONDING COMPANY (Mutual). ARTICLE 2, SECTION 8. — The Chairman of the Board or President or any Vice President or Secretary shall have power and authority to appoint Attorney -in -Fact, and to authorize them to execute on behalf of the Company, and attach the seat of the Companythereto, bondsand undertakings, recognizances, oontractsof indemnityand otherwritings obligatoryin the naturethereof. ARTICLE 2, SECTION 9. — The signature of any authorized officer and the Seal of the Company may bet affixed by facsimile to any Power of Attorney or Certification thereof authorizing the execution and delivery of any bond, undertaking, recognizance, or other r•• suretyship obligations of the Company, and such signature and seal when so used shall have the same force and effect as though manually fixed. In Witness Whereof, MERCHANTS BONDING COMPANY (Mutual) has caused these presents to be signed by its Vice President and President, and its corporate seal to be hereto affixed, this 1st day of January A.D., 1993 Attest: MERCHANTS BONDING COMPANY (Mutual) By 1933 VlcePresident •��`.Sari•tary/lsawi•r,� �: STATE OF IOWA ••d` 44 COUNTY OF POLK es. '.��° ��••� • s On this 1st day of January 1993 before me appeared M.J. Long and W.G. Brundage, to me personally known, who being by me duly sworn did say that they are Vice President and Secretaryrrreasurer respectively of the MERCHANTS BONDING COMPANY (Mutual), the corporation described in the foregoing Instrument, and that the Seal affixed to the said instrument is the Corporate Seal of the said Corporation and that the said instrument was signed and sealed in behalf of said Corporation by authority of its Board of Directors. In Testimony Whereof, I have hereunto set my hand and affixed my Official Seal, at the City of Des Moines, Iowa the day and year first above written. �'•Q��,YN �o• Q L • A, Q • Notary Public, Polk County, Iowa fi • IOWA i My Commission Erplres -4-95 0 ��''•••''.S�P•: STATE OF IOWA jtli '•• 4Rf L ` COUNTY OF POLK as. I, M.J. Long, Vice President of the MERCHANTS BONDING COMPANY (Mutual), do hereby certify that thapbove and foregoing is a true and correct copy of the POWER OF ATTORNEY, executed by said M�fJTDING COMPANY (Mutual), which Is still in force and effect. ` •Ql., • P 10 In Witness Whereof, 1 have hereunto set my hand and affixed the seal of the Company, at 0^•�p� 94. q�•• this 21St day of January 19, 94 ? 4�� December 31, 199517,.This power of attorney expires •° F CERTIFICATE OF INSURANCE INKED..................................... ............................... 4 r. Ronnie Zahn Paving, Inc. f Ronnie Zahn, President 1, Route 10, Box 820 Lubbock TX 79404 10/12/93 CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. COMPANIES AFFORDING COVERAGE t�E� A Bituminous Insurance Companies ........... ......................................................................................................... ................................................... COMPAW LETTER B Texas Workers) Comp. Ins. Fund ........................................................................................................................................................................ COMPANY C LETTER :..................................... ....................................................................................................... .......................... COMPANY D LETTER NY COMPANY E LETTER .THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED, NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDRION OF ANY CONTRACTOR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAYBE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, CLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. .................................................................................................................................................................:.................................,........................................................................................ C� TYPE OF INSURANCE POLICY NUMBER LTL.; EFFECTIVE i Of1'IRA710N LIMITS E DATE (MM/DQfM DATE WMIOD/YY) • GENERAL. LIABILITY E GENERAL AGGREGATE s 2 OOO GOO. �'r Af X COMMERCIAL :CLP 2 113 870 ........... .................... ................. ........e........e................ 10/01/93 10/01/94 PRODUCTSCOMP/OPAGG 62,000,000. } ... CLVMS MADE x occuR :......... PERSONAL IL ADV. INJURY f 1 000 000. >.......................................:.......,....................... OWNER'S & CONTRACTOR'S PRAT. EACH OCCURRENCE f 1, 000, 000. ': .............. I... ............ I ...... .... ... .......-......... I................ E FIRE DAMAGE V y one fire) . f SO PAR! :....................................I.......... p......... . ............................. ... MED. EXPENSE (Ary one person): s 5,000. AUTOMOBILE LIABILITY :......... COMBINED SINGLE s 1,000,000. A,..x ANY AUTO CAP 1 814 512 10/01/93 10/01/94 LIMIT ............................................................... ALL OWNED AUTOS BODILY INJURY SCHEDULED AUTOS :........: A X HIRED AUTOS t ................. i i `BO LYINJURY Sf AX... NON-OWNEDAUTOS r�D"p .............................................. GARAGE LIABILITY ................................... PROPERTY DAMAGE E f ;RlPTION OF OPERATIONS/LOCATIONS/VEHICLES/SPECIAL ITEMS No. 12765 - 1994 Street Maintenance Program rob CITY OF LUBBOCK Attn: Ron Shuffield, Sr.Buyer r P. 0. Box 2000 Lubbock TX 79457 SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, THE ISSUING COMPANY WILL ENDEAVOR TO MAIL 10 DAYS WRITTEN NOTICE TO THE CERTIFICATE HOLDER NAMED TO THE LEFT, BUT FAILURE TO MAIL SUCH NOTICE SHALL IMPOSE NO OBLIGATION OR LIABILITY OF ANY KIND UPON THE COMPANY, ITS AGENTS OR REPRESENTATIVES. AUTHORIZED REPRESENTATIVE e, A . A Y-I A GENERAL CONDITIONS OF THE AGREEMENT F.- GENERAL CONDITIONS OF THE AGREEMENT 1. OWNER y Whenever the owner, or the expression Party of the First Part, or First Party, are used in this contract, it shall be understood as referring to the City of Lubbock, Texas. 2. CONTRACTOR Whenever the word Contractor, or the expression Party of the Second Part, or Second Party, is used, it shall be understood to mean the person, persons, co -partnership or corporation, to wit: RONNIE ZAHN .PAVING, INC., who has agreed to perform the work embraced in this contract, or to his or their legal representative. 3. OWNER'S REPRESENTATIVE c. Whenever the word Owner's Representative, representative, or Engineer is used in this contract, it shall be understood as referring to Don Jennings, Street Superintendent, City Hall, Lubbock, Texas, under whose supervision these r contract documents, including the plans and specifications, were prepared, and who will inspect constructions; or to such other representative, supervisor, or inspector as may be authorized by said Owner to act in any particular under this agreement. Engineers, supervisors or inspectors will act for the Owner under the direction of r Owner's Representative, but shall not directly supervise the Contractor or men acting in behalf of the Contractor. 4. CONTRACT DOCUMENTS The contract documents shall consist of the Notice to Bidders, General Instructions to Bidders, Proposal, Signed Agreement, Statutory Bonds (if' required), General Conditions of the Agreement, Special Conditions of the Agreement (if any), Specifications, Plans, Insurance Certificate, and all other documents made available to Bidder for his inspection in accordance with the Notice to Bidders. 5. INTERPRETATION OF PHRASES Whenever the words "Directed," "Permitted," "Designated." "Required," "Considered Necessary," F II-1 "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. Whenever in the Specifications or drawings accompanying this agreement, the terms of description of various qualitiesrelative to finish, workmanship, or other qualities of similar — kind which cannot, from their nature, be specifically and cleared described and specified, but are necessarily described in general terms, the — fulfillment of which must depend on individual judgment, then in all such cases, any question of the fulfillment of said Specifications shall be decided by the Owner's Representative, and said work shall be done in accordance with his interpretations of the meaning of the words, terms, or clauses defining the character of the work. — 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 firm 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. 8. WORK Unless otherwise stipulated, the Contractor shall provide and pay for all materials, sullies, 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 II-2 F work covered by the contract documents. Unless otherwise specified, all materials shall be new and both workmanship and materials shall be of a good quality. The Contractor shall, ,if required, furnish satisfactory evidence as to the kind and quality of materials. Materials or work described in words which so applied have well known, technical or trade meaning shall be held to refer such recognized standards. All work shall be done and all materials furnished in strict conformity with the contract documents. 9. SUBSTANTIALLY COMPLETED The term "Substantially Completed" is meant that the structure or project contemplated by the contract documents has been made suitable for use or occupancy or the facility is in a condition to serve its intended purpose, but still may require minor miscellaneous work and adjustment. 10. LAYOUT OF WORK Except as specifically provided herein, the Contractor shall be responsible for laying out all work and shall accomplish this work in a manner acceptable to the Owner's Representative. The Owner's Representative will check the Contractor's layout of all major structures and any other layout work done by the Contractor at Contractor's request, but this check does not relieve the Contractor of the responsibility of correctly locating all work accordance with the Plans and Specifications. 11. KEEPING OF PLANS AND SPECIFICATIONS ACCESSIBLE The Contractor shall all Plans, Profiles expense to him and h consistently accessi 12. RIGHT OF ENTRY be furnished with 5 copies of and specifications without e shall keep one copy of same ble on the job site. The Owner's Representative may make periodic visits to the site to observe the progress and 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 on -site inspections to check the quality or quality of the work, nor will he be responsible for the construction means, methods, techniques, sequences or procedures, or n r the safety precautions incident thereto. His efforts will be directedtowards providing assurances for the Owner that the completed project will conform to the requirements of the contract documents, but he will not be responsible for the Contractor's failure to perform the work in accordance with the Contract Documents. On the basis of his on -site observations, he will keep the Owner informed of the progress of the work and will -- endeavor to guard the Owner 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. 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 insure the proper execution of the contract. In order to permit delays and disputes and to discourage litigation, it is further agreed that the Owner's Representative shall, in all cases, determine the amounts and quantities of the several kinds of work which are to be paid for under this contract. He shall' determine all questions in relation to said work and the construction thereof,' and shall in all cases, decide every question which — may arise relative to the execution of this contract on the part of said Contractor. The Owner's Representative's estimates and findings shall be conditions precedent to the right of the parties hereto to arbitration or to any action on II-4 F F the contract, and to any rights of the Contractor to receive any money under this contract; provided, however, that should Owner's Representative render any decision or give direction, which in the opinion of either party hereto, is not in accordance with the meaning and intent of this contract, either party may file with said Owner's Representative within 30 days his written objection to the decision or direction so rendered, and by such action may reserve the right to submit the question so raised to arbitration as hereinafter provided. It is the intent of this agreement that there shall be no delay in the execution of the work, therefore, written decisions or direction of the Owner's Representative as rendered shall be promptly carried out, and any claim arising therefrom shall be adjusted to arbitration as hereinafter provided. 15. SUPERINTENDENT AND INSPECTION It is agreed by the Contractc Representative shall be and i appoint from time to time suc engineers, supervisors, or it Owner's Representative may de the materials furnished and t this agreement, and to see tr furnished and said work is do the specifications therefore. furnish all reasonable aid ar by the subordinate engineers, inspectors for the proper ins examination of the work. The ` regard and obey the direction any subordinate engineers, sL A" inspectors so appointed, whey instructions are consistent u this agreement and accompanvi r that the Owner's s hereby authorized to h subordinate spectors as the said em proper to inspect he work done under at said material is ne in accordance with The Contractor shall d assistance required supervisors, or pection and Contractor shall s and instructions of pervisors or such directions and ith the obligations of na 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 Representatives 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 risk in connection therewith shall be borne by the Contractor. The Owner or Owner's Representative will not be responsible for the acts or omissions of the Contractor, or any subcontractors, or any of his agents or employees, or any other persons performing any of the work. 17. CONTRACTOR'S UNDERSTANDING It is understand and agreed that the Contractors 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 encounter, the character of equipment and facilities needed - preliminary to and during the prosecution of the work, and the general and local conditions, and all other matters which in any way effect the work under this contract. No verbal agreement or conversation with any officer, agent, or employee of the Owner, either before or after the execution of this contract, shall effect or modify any of the terms or obligations herein contained. 18. CHARACTER OF WORKERS The Contractor agrees to employ only orderly and competent workers 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 worker or workers on the work, are, in his opinion,` incompetent, unfaithful, or disorderly, such worker or workers 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 the II-6 I Owner shall furnish same, and it is also understood that the Owner shall not be held responsible for r' 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 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 C 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 nor in accordance with the contract documents, regardless of the stage of its completion or the time or place of discovery of such errors, any regardless of whether Owner's Observer has previously accepted the work though 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 go 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'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 Owner's Representative as unsuitable or not in conformity with plans, specifications and contract documents, the Contractor shall, after receipt of written notice thereof from the Owner Representative, forthwith remove such material and rebuild or otherwise remedy such work so that it shall be in full accordance with this Contractor. It is further agreed that any remedial action contemplated as hereinabove set forth shall be at Contractor's expense. II-8 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 quality 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 alternatives as shall make unless 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 expense incurred in preparation for the work as originally planned. 24. EXTRA WORK The term "extra work" as used in this contract shall be understood to mean and include all work that may be required by the Owner or Owner's Representative to be done by the Contractor to accomplish any change, alteration or addition to the work as shown on the plans and specifications or contract documents and not covered by Contractors' proposal, except as provided under Changes and Alterations herein. It is agreed that the Contractor shall perform all extra work under the direction of the Owner;s Representative when presented with a written work order signed by the Owner's Representative, subject, however, to the right of the Contractor to require written confirmation of such extra work order by the Owner. It is also agreed that the compensation to be paid to the Contractor for performing said extra work shall be determined by r, one or more of the following methods: b R r Method (A) - By agreed unit prices; or Method (B) - By agreed lump sum; or Method (C) - If neither Method (A) or Method (B) Be agreed upon before the extra work is commenced, then the Contractor shall be paid the actual field cost of the work, plus Fifteen (15%) per cent. In the event said extra work be performed and paid for under Method (C), then the provision 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, and materials, supplies, teams, trucks, rental on machinery and equipment, for the time actually employed or used on such extra work, plus actual transportation charges necessarily incurred, together with all expenses incurred directly on account of such extra work, including Social Security, Old Age Benefits, Maintenance Bonds, Public Liability and Property Damage and Workmen's Compensation and all other insurance as may be required by law or ordinance or directed by the Owner or Owner's Representative, or by them agreed to. Owner's Representative may direct the form in which accounts of the actual field cost shall be kept and records of these accounts shall be made available to the Owner's Representative. The Owner's Representative may also specify in writing, before the work commences, the method of doing the work and the type and kind of machinery and equipment to be used; otherwise, these matters shall be determined by the Contractor. Unless otherwise agreed upon, the prices for the use of machinery and equipment shall be determined by using 100%, unless otherwise specified, of the latest Schedule of Equipment and Ownership Expenses adopted by the Associated General Contractors of America. Where practical, the terms and prices for the use of machinery and equipment shall be incorporated in the written extra work order. The fifteen per cent (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 writings by the 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 Y It is further agreed that it is the intent of this �- contract that all work described in this proposal, the specifications, plans and other contract documents, is to be done for the prices quoted by the Contractor and that such price shall include all appurtenance 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 Owner's r. 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 openings of bids, then it shall be considered that the Contractor fully understands the work to be included and has provided sufficient sums in his proposal to complete the work in accordance with these plans and specifications. It is further understood that any request for clarification must be submitted no later than five days prior to the FUR 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 t such order. If, at any time, the working force of the Contractor ds 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 Workmen's Compensation Insurance with an insurance licensed to transact business in the State of Texas, which policy shall comply with - the Workmen's Compensation Laws of the State of Texas. The Contractor shall at all times exercise reasonable precaution for the safety of employees and others on or near the work and shall comply with all applicable provisions of federal, state and municipal laws and building and construction codes. All machinery and equipment and other physical hazards shall be guarded in accordance with the "Manual of Accident Prevention in Construction" of Associated General Contractors of - America, except where incompatible with federal, state or municipal laws or regulations. The Contractor, -his sureties and insurance carriers Y shall defend, indemnity and save harmless the Owner and all of its officers, agents and employees from all suits, actions, or claims of any character whatsoever, brought for or on account of any - injuries or damages received or sustained by any person or persons or property, on account of any negligent act or fault of the Contractor or any = subcontractor, their agents or employees, in the execution and supervision of said contract, and the project which is the subject matter of this contract, on account of the failure of Contractor or any subcontractor to provide necessary barricades, warning lights, or signs, and will be required to pay any judgment with costs which may be obtained against the Owner or any of its officers, agents, or employees including attorneys fees. - The safety precautions taken shall be the sole responsibility of the Contractor, in his sole discretion as an Independent Contractor; inclusion of this paragraph in the Agreement, as well as any notice which may be given by the Owner, 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 constructed as any assumption of duty to PM supervise safety precautions by either the y Contractor or any of his subcontractors. 28. CONTRACTOR'S INSURANCE The Contractor shall procure and carry at his sole cost and expense throughout the life of this contract, insurance protection as hereinafter specified. Such insurance shall be carried with an insurance company licensed 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) Workmen's Compensation and Employer's 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. (B) Comprehensive General Liability Insurance The Contractor shall have Comprehensive General Liability Insurance with limits $500,000 Combined Single Limit in the aggregate and per per occurrence to include: Premises and operations Explosion and Collapse Hazard Contractual Liability (Incidental) Independent Contractors Coverage Personal Injury (with exclusion "C" waived) The City is to be named as an additional insured on this policy for this specific job and a copy of the endorsement doing so is to be attached to the Certificate of Insurance. (C) Comprehensive Automobile Liability Insurance The Contractor shall have Comprehensive Automobile Liability Insurance with limits of not less than: Bodily Injury/Property Damage, $500,000 Combined Single Limit, to include all owned and non -owned cars including: Employers Nonownership Liability Hire and Non -owned 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) Excess or Umbrella Liability Insurance The Contractor shall have Excess or Umbrella Liability Insurance in the amount of $500,000 with coverage to correspond with Comprehensive General Liability and Comprehensive Automobile Liability coverages. The City is to be named as an additional insured on this policy for this specific job and a copy of the endorsement doing so is to be attached to the Certificate of. Insurance. (E) Proof of Coverage Before work on this contract is commenced, each — Contractor and subcontractor shall submit to the Owner for approval 6 certificates of insurance covering each insurance policy — carried and offered as evidence of compliance with the above insurance requirements, signed by an authorized representative of the insurance company setting forth: (1) The name and address of the insured. (2) The location of the operations to which the insurance applies. (3) The name of the policy and type or types of insurance in force thereunder on the date borne by such certificate. (4) The expiration date of the policy and the limit or limits of liability thereunder on the date borne by such certificate. (5) A provision that the policy may be canceled only by mailing written notice to the named insured at the address shown in the bid specifications. (6) A provision that written notice shall be given to the city ten days prior to any, change in or cancellation of the policies shown on the certificate. F 7 The certificate or certificates shall be on the form for (or identical copies thereof) contained in the job specifications. No substitute of nor amendment thereto will be acceptable. 29. PROTECTION AGAINST CLAIMS OF SUBCONTRACTORS, LABORERS, MATERIALMEN. AND FURNISHERS OF MACHINERY. EQUIPMENT AND SUPPLIES The Contractor agrees that he will indemnity 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. r. If during the progress of the work, Contractor w 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 r, discharge any such indebtedness. Any and all .communications between any party under this paragraph must be in writing. b 30. 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 indemnity 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 ! a manufacturer or manufacturers is specified or required in these contract documents by Owner; r" 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. 31. 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 the Owner against any claim 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 various therewith, he shall promptly notify the Owner's 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. 32. 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. 33. TIME FOR COMPLETION AND LIQUIDATED DAMAGES It is hereby understood and mutually agreed by and, between the Contractor and the Owner, that the date II-16 FIR POO w, of beginning and time for completion as specified in the 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 two -Hundred Dollars ($200.00), 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. (See Bid Proposal -Bid for Unit Price for additional information). It is expressly understood and agreed, by and between Contractor and the Owner, that the time for the completion of the work described herein is reasonable time for the completion of the same, taking into consideration the average climatic change and conditions and usual industrial conditions prevailing in this locality. The amount is fixed and agreed upon by and between the Contractor and the Owner because of the impracticability and extreme difficulty in fixing and ascertaining actual damages the Owner would in such event sustain, and the amount is agreed to be damages the owner would sustain and shall be retained by the Owner from current periodical estimates for payments or from final payment. It is further agreed and understood between the Contractor and Owner that time is of the essence of this contract. 34. TIME 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 substantially completed as a whole and in part, in accordance with this contract, the plans and specifications, and within the time of completion designated in the proposals; provided, also, that when the Owner is having other work done, either by II-17 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 avoide& and the construction of the various works being done for the Owner shall be harmonized. The Contractor shall submit, at such times as may reasonably be requested by the Owner's Representative, schedules which shall show the order in which the Contractor proposes to carry on the work, with dates at which the Contractor will start the several parts of the work, and estimated dates of completion of the several parts. (See Special Conditions for additional information). 35. EXTENSION OF TIME The Contractor agrees that he has submitted his proposal in full recognition of the time required for the completion of this project, taking into consideration the average climatic range and industrial conditions prevailing in this locality, and has considered the liquidated damage provisions of paragraph 33 hereinabove set forth and that he shall not be entitled to, nor will he request, an _ extension of time on this contract, except when his work has been delayed by an act or neglect of the Owner or other contractors employed by the Owner, or by changes ordered in the work, or by strike, walk -outs, acts of God or the public enemy, fire or flood. The Contractor may apply in writing for an extension of time, submitting therewith all written justification as may be required by Owner's Representative for such an extension as requested by Contractor. The Owner's Representative within ` ten (10) days after receipt of a written request for an extension of time by the Contractor supported by all requested documentation shall then submit such written request to the City Council of the City of Lubbock for their consideration. Should the Contractor.disagree with the action of City Council on granting an extension of time, such _ disagreement shall be settled by arbitration as hereinafter provided. 36. 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 II-18 r 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 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 �u to Contractor. F- 37. 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 proposals offered for the work. It is understood and agreed that the actual amount of work to be done and the materials to be furnished under this contract may differ somewhat from these estimates, and that where the basis for payment under this contract is the unit price method, payment shall be for the actual amount of work done and materials furnished on the project. 38. PROTECTION OF ADJOINING PROPERTY The Contractor shall take proper means to protect the adjacent or adjoining property or properties in ( any way encountered, which may be injured or seriously affected by any process of construction to be undertaken under this agreement, from any damage or injury by reason of said process of construction; and he shall be liable for any and all claims for such damage on account of his failure to fully protect all adjacent property. I The Contractor agrees to indemnify, save and hold harmless the Owner against any claim or claims for damages due to any injury to any adjacent or adjoining property, arising or growing out of the performance of this contract, but such indemnity shall not apply to any claim of any kind arising out of the existence or character of the work. 39. PRICE FOR WORK In consideration of the furnishing of all necessary labor, equipment and material and the completion of all work by the Contractor, and on the delivery of all materials embraced in this contract in full conformity with the specifications and stipulations _ herein contained, the Owner agrees to pay the Contractor the price set forth in the proposal attached hereto, which has been made a part of this contract, and the Contractor hereby agrees to receive such price in full for furnishing all materials and all labor required for the aforesaid work, also, for all expenses incurred by him and _ for well and truly performing the same and the whole thereof in the manner and according to this agreement, the attached specifications, plans, contract documents and requirements of Owner's Representative. 40. PAYMENTS No payments made or certificates given shall be' considered as conclusive evidence of the performance of the contract, either wholly or in part, nor shall any certificate or payment be considered as acceptance of defective work. Contractor shall at any time requested during the progress of the work furnish the Owner or Owner's Representative with a verifying certificate showing the Contractor's total outstanding indebtedness in _ connection with the work. Before final payment is made, Contractor shall satisfy Owner, by affidavit or otherwise, that there are no outstanding liens against Owner's premises by reason of any work under the contract. Acceptance by Contractor of final payment of the contract price shall constitute a waiver of all claims against Owner which have not theretofore been timely filed as provided in this contract. 41. 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 II-20 r� P P" L 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. 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 reasonable and equitable portion of the retained percentage due Contractor. 42. FINAL COMPLETION AND ACCEPTANCE Within thirty-one days (31) days after the Contractor has given the Owner's Representative written notice that the work has been completed or substantially completed, the Owner's Representative and the Owner shall inspect the work and within said time, if the work be found to be completed or substantially completed in accordance with the contact documents, the Owner's Representative shall issue to the Owner and the 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. 43. FINAL PAYMENT Upon the issue 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 term 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, i 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. 44. CORRECTION OF WORK BEFORE FINAL PAYMENT FOR WORK Contractor shall promptly remove from Owner's ~ premise 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 material with other materials conforming to the requirements of this contract. Contractor shall also bear he expense of restoring all work of other contractors damaged by any such removal or replacement. If Contractor does not remove and replace any such condemned work within a reasonable time after a written notice by the Owner or the Owner's Representative. Owner may remove and replace it at Contractor's expense. 45. 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 and 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 substantial completion. The Owner or the Owner's Representative shall give notice of observed defects with reasonable promptness. 46. PAYMENT WITHHELD 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 material or _ labor. II-22 i' Pm N (D) Damage to another contractor. When the above grounds are removed, or the Contractor provided 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. 47. 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 Owner's Representative shall reply to such written exceptions by the Contractor and render his decision in writing. In case the Contractor appeal from the decision of the Owner's Representative, any demand for arbitration filled with the Owner's Representative and Owner in writing within ten (10) days after date of delivery to Contractor of the final decision of the Owner's Representative. It further agreed that final acceptance of the f ina 1 should shall be the the is work by the Owner and the acceptance by the Contractor the final payment shall be a bar to any claim either party, except where noted otherwise in contract documents. 48. ARBITRATION of by the All questions of dispute under this agreement shall be submitted to arbitration at the request of either party to the dispute. The parties may agree upon one arbitration, otherwise, there shall be three; one named in writing by each party and the third chosen by the two arbiters selected; or if the arbiters fail to select a third within ten (10) days, he shall be chosen by the District Judge, 72nd Judicial District of Texas. Each arbiter shall be a resident of the City of Lubbock. Should the party demanding arbitration fail to name an arbiter within ten (10) days of the demand, his right to arbitrate shall lapse, and the decision of the Owner's Representative shall be final and binding on him. Should the other party fail to choose an arbiter within ten (10) days, the Owner's Representative shall appoint such arbiter. Should either party refuse or neglect to supply the arbiters with any papers or information demanded in II-23 writing, the arbiters are empowered by both parties to take Ex Parte Proceedings. The arbiters shall act with promptness. The decision of any two shall be binding'on both parties to the contract, unless either or both parties shall appeal within ten (10) days from date of the award by the arbiters, and it is hereby agreed that each party shall the right of appeal and all proceedings shall be according to and governed by Arbitration Statutes of Texas, being Article 224, et seq., Vernon's Annotated Civil Statutes. THE DECISION OF THE ARBITERS UPON ANY QUESTION SUBMITTED TO ARBITRATION UNDER THIS CONTRACT SHALL BE A CONDITION PRECEDENT TO ANY RIGHT OF LEGAL ACTION. r. The arbiters, if they deem the case demands it, are authorized to award the party whose contention is sustained, such sums as they deem proper for the time, expense and trouble incident to the appeal, and if the appeal was taken without reasonable cause, they may award damages for any delay occasioned thereby. The arbiters shall fix their own compensation, unless otherwise provided by agreement, and shall assess the cost and charges of = the arbitration upon either or both parties. The award of the arbiters must be made in writing and shall not be open to objection on account of the form of proceedings or award. 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 II-24 + therefore (except when used in connection with Extra Work, where credit shall be allowed as provided for under paragraph 24 of this contract); I 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 hereinbefore 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 employee 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 r- County of location of the work. may let the contract for the completion of the work under substantially the same terms and conditions C 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. F II-25 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 be the Ownerfs 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 balance due as reflected by said statement within 31 days after the date of certificate of completion. In the event the statement of accounts shows that the cost to complete the work is less than that which would have been the cost to the Owner had the work been completed by the Contractor under the terms of this contract, or when the Contractor and/or his Surety shall pay the balance shown to be due by them to the Owner, then all machinery, equipment, tools, materials or supplies left on the site of the work shall be turned over to the Contractor and/or.his Surety. Should the cost to complete the work exceed the contract price, and the Contractor and/or his Surety fail to pay the amount due the Owner within the time designated hereinabove, and there remains any machinery, equipment, tools, materials or supplies on the site of the work, notice thereof, together with an itemized list of such equipment and materials shall be mailed to the Contractor and his Surety at the respective addresses designated in this contract; provided, however, that actual written notice given in any manner will satisfy this condition. After mailing, or other giving -of such notice, such property shall be held at the risk of the Contractor and his Surety subject only to the duty of the Owner to exercise ordinary care to protect such property. After fifteen (15 ) days from the date of said notice the Owner may sell such machinery, equipment, tools, materials or supplies and apply the net 'sum derived from such sale to the credit of the Contractor and his Surety. Such sale may be made at either. public or private sale, with or without notice, as the Owner may elect. The Owner shall release any machinery, equipment, tools, materials, or supplies which remain on the job site and belong to persons other than the Contractor or his Surety, to their proper owners. II-26 t 50. ABANDONMENT BY OWNER In case 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 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 be said Contractor at the prices stated in the attached proposal, the value of all partially completed work at a fair and equitable price, and the amount of all Extra Work performed at the prices agreed upon, or provided for by the terms of this contract, and a reasonable sum to cover the cos Contractor to carry and which cannot be Representative shall the balance due the the above estimates Owner and all other the Owner under the shall certify same t the Contractor on or the date of the noti balance shown by sai Contractor, under th 51. BONDS : or any provisions made by the :he whole work to completion, itilized. The Owner's then make a final statement of .ontractor by deducting from ill previous payments by the Sums that may be retained by :erms of this agreement, and 3 the Owner who shall pay to before thirty (30) days after Eication by the Contractor the i final statement as due the terms of this agreement. The successful bidder shall be required to furnish a performance bond and payment bond in accordance with Article 5160, Vernon's Annotated Civil Statutes in the amount of 100% of the total contract price, in the event said contract price exceeds $25,000.00. If the contract price does not exceed $25,000.00, the statutory bonds will not be required. All bonds, if required, shall be submitted on forms supplied by the Owner, and executed by an approved Surety Company authorized to do business in the State of Texas. And it is further agreed that this contract shall not be in effect until such bonds are so furnished. 52. SPECIAL CONDITIONS In the event special condition are contained herein as part of the contract documents and said special II-27 condition 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 circumstances 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 premise free from accumulation of debris cased 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 broom clean or its equivalent. The work shall be left in good order and condition. In case of dispute Owner may remove the debris and charge the cost to the Contractor. II-28 SPECIAL CONDITIONS 7 SPECIAL CONDITIONS 1. CHANGES IN THE WORK The Local Public Agency may make changes in the scope of the work required to be performed by the Contractor under the Contract or making additions thereto, or by omitting work therefrom, without involving the Contract, and. without relieving or releasing the Contractor from any of his obligations under the contract or any guarantee given by him pursuant to the Contract provisions, and without affecting the validity of the guaranty bonds, and without relieving or releasing the surety or sureties of said bonds. All such work shall be executed under the terms of the original Contract unless it is expressly provided otherwise 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 of constructing 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. If applicable unit prices are contained in the agreement (established as a result of either a unit price bid or a Supplement Schedule of Unit Prices) the Local Public Agency may order the Contractor to proceed with desired changes in the work, 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 changes does not increase or decrease the original total amount shown in the Agreement by more than twenty- five (25%) percent. 2. SUPERINTENDENCE The Superintendent and/or his assistants will not be allowed to serve two functions simultaneously, such 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. F 3. PROSECUTION OF WORK The Contractor may proceed with subgrade preparation of earthwork on any schedule that he may select and on any location in the contract unless hindered by factors.beyond his control. Not more than three (3) calendar days shall elapse between the time subgrade preparation is begun and the time of spreading and compaction of the caliche base. During the construction the Contractor is to close to traffic streets as directed by the Engineer. The Contractor will, before starting any work on any street, erect barricades and signs, or provide sufficient flagmen to give notice to vehicular traffic, also two special trailer mounted signs and arrows flash left, right or both at the same time at least 25 times per minute, see detail 2-S-126 and Section 6E-7 of the traffic control manual. During the period the Contractor is directing traffic over the base, the surface shall be satisfactorily maintained by the use of sprinkling and blading as required so that no hazard will result. The base course shall be maintained until the wearing surface if placed thereon. At no time during the period of construction shall driveways and/or alleys be left impassable between the night hours of 6 -- P.M. to 6 A.M. except during the construction of the curb and gutter for which the driveways and/or alleys shall remain closed not more than 4 days including 72 hours for curing. The Contractor will be required to place and level the caliche as each block is subgraded and in no case shall the caliche be permitted to remain as dumped overnight. The Contractor will, during the progress of the work, erect and maintain for twenty-four hours a day such barricades and warnings necessary to give notice to vehicular and pedestrian traffic of any and all obstructions and insofar as possible keep the streets and/or alleys on which work is being done in a passable condition. During the time that the curb and gutter is being poured and cured and until the caliche is leveled, the Contractor shall have flares and warning signs placed at each end of the block. When the subgrade excavation causes an abrupt drop in the driving portion of the street the Contractor shall level the drop by dumping a sufficient amount of approved caliche on the subgrade. During the time _ the concrete is curing in the alleys and until it can be opened to traffic, the Contractor shall maintain warning signs on barricades with flares at each end of the block until this alley can be opened to traffic. III-2 r G The flagmen will be required to wear vests and use the type of flag as shown on flagging detail sheet in specifications. r All equipment working on the streets will at all times have at least two (2) red, orange or fluorescent red -orange flags at least 16" x 16" in size. These flags shall be mounted high enough on the equipment so that they will be visible to all traffic meeting or passing the equipment. Before work is started on any street it will be the responsibility of the Contractor to notify each property owner that has a car or cars parked in their driveways or garages so that each owner might have the opportunity to move !' their cars. The Contractor shall schedule his work on major thoroughfares and collectors at least 5 days in advance, in order that businesses may have time to adjust their plans. On all thoroughfares and collectors, the Contractor and the City's Representatives will work with each of the businesses, hospitals, schools, etc., so that only part of the driveways into their parking lots will be closed. At no time will any parking lot be completely closed, without prior approval from the Owner's Representative, unless the work is being accomplished at night and the businesses are closed. The Contractor shall be responsible for notifying affected businesses of the proposed work and the projected schedule for completion of this work. Immediately after each applications of asphalt, re- construction or black base construction the Contractor shall clean, remove paper, surplus aggregate or paving materials from gutters, rubbish and temporary structures from the street, restore in an acceptable manner all property, both public and private which has been damaged 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 part of the cost of the various items of the work involved, and no direct compensation will be made for this work. The Contractor should familiarize himself with the Texas Manual on UNIFORM TRAFFIC CONTROL DEVICES for Streets and Highways. Part VI, published August 31, 1979. 4. BARRICADES AND DANGER, WARNING AND DETOUR SIGNS AND TRAFFIC HANDLING The Contractor shall have the sole responsibility for providing, installing, moving, replacing, maintaining, cleaning and removing upon completion of work, all 7 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 indicated in the Texas Manual on Uniform Traffic _ Control Devices. 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 evident thereof shall be removed by the Contractor. 5. MAINTENANCE OF DETOURS The Contractor shall do such work as may be necessary to maintain detours and facilities for safe public travel in accordance with the Traffic Control Plan and these specifications. 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. 6. PUBLIC SAFETY AND CONVENIENCE 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 a manner and at such locations as not to interfere with the safe passage of traffic. The Contractor shall provide and maintain flaggers at such points an for such periods of time as may be required to provide for the safety and convenience of public travel and Contractor's F F personnel, and as directed by the Engineer. Flaggers 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 traffic, flaggers 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. 7. WATER Water for this project will be furnished by the City of Lubbock at fire hydrants designated by the Contractor for which there will be no charge. The Contractor will be furnished loading racks by the City Water and Street Superintendent at no charge for the first rack but for each additional rack there will be a charge of ten dollars. The Contractor will also be charged ten dollars for each move of each loading rack after the first set-up. The loading rack will be equipped with a valve which will be pad -locked at all times except when the Contractor's truck is loading. The valve on the loading rack shall be used by the Contractor and at no time will the Contractor use the fire hydrant valve.The padlock on the rack valve shall be furnished by the Contractor. The Contractor shall not use any fire hydrants for water loading unless there is an authorized rack on the fire hydrant. The Contractor will not be allowed to use water from authorized loading racks except on City approved projects. Water, which is supplied by the City, is intended for use in compacting subgrade and base and maintaining dust control. It is not the intention of the City to furnish water for use in mixing concrete. 8. RESTRICTIONSANDREOUIREMENTS 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 Engineer. No work will be allowed between November 1 and January 2, unless approved by the Engineer. B. A 1:2 dilute emulsion treatment gallon per square yard will be A.C. surface within ten days of the A.C. surface. III-5 at a rate of .10 applied to the the placement of 7, C. TEMPERATURE REQUIREMENTS (The temperature readings to be used will be as reported by the National Weather Service on an hourly report [Telephone Number 762-0141)]. (1) HMAC - November 1 until April 1 a. The asphaltic mixture shall not be placed with the air temperature is below 550F. and falling. b. The asphaltic mixture may be placed when the air temperature is above 50OF and rising. — (2) HMAC - April 1 untill November 1 a. The asphaltic mixture shall not be placed with the air temperature is below 500F. and falling. b. The asphaltic mixture may be placed when the air temperature is above 450F. and rising. (3) Asphalt Stabilized Base a. The asphaltic mixture shall not be placed when the air temperature is below 450F and falling. b. The asphaltic mixture may be placed when the air temperature is above 40OF and rising. The Engineer may use his discretion.to require a cover over the asphaltic mixture when hauled from the plant to the job site. D. Unless otherwise approved by the Engineer, the minimum temperature of asphaltic materials immediately after placement by the laydown machine will be 300OF for HMAC and 2750F 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 performed III-6 with six passes over the area 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 local stockpiles. Final approval of the stockpile material will be required by the Engineer, after which no additional aggregate will be added to the approved stockpile prior to the sealing operation. H. During the period of re -construction and two course 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 repaired at the Contractor's expense. I. At no time during the reconstruction of streets will the Contractor completely close any street to all traffic without the Engineer's approval. On most major thoroughfares only one-half will be reworked at a time, and, on some narrow streets the full width will be reworked. On the two - course streets one-half will be closed and the traffic will be detoured on the other side. When business are on one or both sides, shorter shots will be made to cause less inconvenience to the public & the businesses. J. 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 reconstruction, and at no time will any section of the closed area be left three (3) days j' without some type of work being performed. If 11 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 before the next area is closed. After the work is started, no equipment will be removed from this site to another. It is the intent of these requirements to reconstruct and place the two - course on the streets as listed in the contract with the least inconvenience to the property owners and the traveling public. K. At no time during the construction, re -construction or sealing and two -course maintenance will any equipment be taken across any curb or gutter, valley gutter, alley r" III-7 t; f', return, or sidewalk without first placing a dirt or caliche fill, of at least one foot, above the existing concrete. Any broken or damaged concrete (broken or damaged by Contractor's equipment) will be removed and replaced at the Contractor's expense. 9. REMOVING OBSTRUCTIONS The Contractor shall familiarize himself with the existing obstructions including sidewalks, trees, poles, etc., prior to building. 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 compensation for delay caused by the Utility Companies in relocating or removing their equipment. 10. TEST OF MATERIALS 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 Street Superintendent. A. CALICHE BASE MATERIALS Before caliche materials can be used on any street, current (not older than 30 days) test reports will submitted to the Street Superintendent for approval. Test reports will be required every 30 days as this material is used on City Streets.- During the construction period, tests that fail will require re -testing. B. Asphalt Stabilized Base The Contractor, or supplier of such materials, shall submit to the City Materials Testing Lab, as soon as possible after the Notice to Proceed is issued, a sample for gradation testing and magnesium sulfate testing. The gradation requirements shall meet those established in Item 7-B(3) of Section 4'(p.8). The maximum loss from Magnesium Sulfate testing, when tested in accordance with ASTM C-88-76 (4 cycle), shall not exceed fifteen (15) percent. C. HOT MIX AND SEAL COAT AGGREGATE The Contractor, or supplier of such materials, shall submit to the City Materials Testing Lab, at least III-8 1 ninety (90) days prior to the beginning of the sealing operations, samples of the various grades of aggregate r to be used in the reconstruction hot mix and the seal I, coat operations for gradation testing, crushed face counts, Flakiness Index tests, and magnesium sulfate tests. The gradation requirements shall meet those established in Texas Department of Highways and Public Transportation (1982) Item 302.4. The crushed face count, Flakiness Index, and Magnesium Sulfate require *" ments shall meet those established in Section IV, f Y Item 10 A and Item 10 A (1) (pp 27-28). D. Cement Certified mill tests on each car or transport. D. Base Density Tests The City of Lubbock Materials Testing Laboratory will provide density tests on the caliche base and/ or black base. NOTE: See Section IV-10-D (Laboratory Control) for retesting material where irregularities occur and the limits of the specifications are exceeded for aggregate, I base materials, black base and hot -mix and 1 concrete construction. 11. SUBCONTRACTOR 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 r to the work of subcontractors and to give the Contractor the l same power as regard terminating any subcontract that the Owner may exercise over the Contractor under any provision of the contract documents. III-9 F 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. 12. UNDERGROUND UTILITIES 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. 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. 13. 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. 14. 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 and 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. 7 t. N 15. LABOR The Contractor must abide by the Wage and Hour Laws of the State of Texas, or the U.S. Department of Labor, and must not pay less than the rate legally prescribed or as set forth herein, whichever is higher. Payment for time worked over forty -hours per week shall be made at one and one-half (1-1/2) times the above prevailing rates. Payment for time worked on legal holidays shall be paid at two (2) time the regular governing per diem wage rates. Any laborer, workman or mechanic required or permitted to work in excess of eight (8) hours per calendar day, under the emergency exceptions to House Bill No. 115 of the 44th Legislature invoked by HCR No. 201 of the 47th Legislature shall be paid on the basis of eight (8) hours constituting a days work. The prevailing wage rates for this contract are shown in the following pages. Page One 1994 CONTRACT MAINTENANCE PROGRAM: Major Thoroughfares Single Course: @4 Pre -Coat, ACS W/ 3% Latex DIST. STREET FROM TO LENGTH WIDTH 2 E. 19th Street SLL Spruce Avenue Alley W. of Vanda Ave 685 60 5 98th Street Alley W. of Englewood Alley E. of Abbeville 3,765 17 5 98th Street ELL Frankford Avenue Alley W. of Englewood 745 26 4 S. 20' of 82nd VG @ University VG @ Elgin Avenue 2,565 20 1 6 6 Erskine Street W. ER Indiana Avenue W. ER Knoxville 1,065 28 1 6 6 Erskine Street W. ER Knoxville Avenue E. ER Quaker Avenue 3,950 25 5 6 6 Frankford Ave. VG @ 19th Street NLL 34th Street 5,325 38 2 Spruce Avenue SLL E. 19th Street VG @ Idalou Highway 420 60 4 W. 20' of Univ. S. ER 82nd Street S. ER 86th Street 1,150 20 17-Nov-93 ASPHALT ROCK ROCK RATE ASPH. RATE C.Y. RATE C.Y. AREA R 2 • 4 4,567 0.28 1,279 1:90 51 7,112 0.28 1,991 1:90 79 2,152 0.28 603 1:90 24 5,700 0.28 1,596 1:90 63 3,313 0.28 928 1:90 37 10,972 0.28 3,072 1:90 122 22,483 0.28 6,295 1:90 250 2,800 0.28 784 1:90 31 2,556 0.28 716 1:90 28 --------- --------- ------ --------- Page One -TOTALS = 61,655 17,264 0 685 TOTAL Thoroughfares - One -Course: 61,655 '•17,264 .==0 a 685 -_-7 � `mil -I --I r _-I --7 l --I --I ` -I _ `-� --I -I --1 -1 __1 `_1 Page Two DIST. STREET 1994 CONTRACT MAINTENANCE PROGRAM: Collectors Single Course: #4 Pre -Coat, ACS W/ 3% Latex FROM TO LENGTH WIDTH AREA ASPHALT --------------- RATE ASPH. 17-14ov-93 ROCK ROCK ------------ -------------- RATE C.Y. RATE C.Y. A 2 0 4 3 20th Street WLL Indiana Avenue ELL Joliet Avenue 570 26 1,647 0.28 461 1:90 18 3 21st Street WLL Indiana Avenue ELL Memphis Avenue 2,550 26 7,367 0.28 2,063 1:90 82 2 Canyon Lakes Dr. ELL Park Road 18 NLL E. Broadway 1,495 32 5,316 0.28 1,408 1:90 59 2 Canyon Lakes Dr. SLL E. Broadway NLL E. 19th Street 2,465 32 8,764 0.28 2,454 1:90 97 2 Canyon Lakes Dr. E ER Quirt Avenue CDs to East 6,290 32 22,364 0.25 6,262 1:90 248 1 Canyon Lakes Dr. N. Loop Access Rd. VG @ University 4,565 32 16,231 0.28 4,545 1:90 180 Canyon Lakes Dr. VG @ University VG @ N. Avenue U 2,825 32 10,044 0.28 2,812 1:90 112 --------- --------- ------ --------- Page Two -TOTALS 71,733 20,085 0 796 .... _ TOTAL Collectors - One -Course: t71,733 20,085 0 .s=�sa796 Page Three 1994 CONTRACT MAINTENANCE PROGRAM: Residential Streets Single Course: 14 Pre -Coat, AC5 N/ 3% Latex DIST. STREET FROM TO LENGTH WIDTH 17-Nov-93 ASPHALT ROCK ROCK --------------- ------------ -------------- RATE ASPH. RATE C.Y. RATE C.Y. AREA # 2 # 4 4 Akron Avenue SLL 79th Street NLL Blst Street 600 32 2,133 0.28 597 2 Ash Avenue S. ER 74th Street S. ER 76th Street 495 42 2,310 0.28 647 1 N. Avenue X S. ER Queens Street N. Loop Access Road 1,200 48 6,507 0.28 1,822 2 E. Baylor Street NLL Niter Avenue N. ER Mulberry Avenue 690 32 2,453 0.28. 687 4 Boston Avenue N. ER 81st Street S. ER 79th Street 585 32 2,080 0.28 582 4 Boston Blvd. 150' S. of 86th St. VG @ 82nd Street 1,500 46 7,667 0.28 2,147 2 E. Colgate St. ELL Niter Avenue NLL Olive Avenue 620 32 2,204 0.28 617 5 Homestead Avenue NLL 66th Street SLL Spur 327 1,550 38 6,544 0.28 1,832 5 Huron Avenue SLL Blst Street SLL 79th Street 400 38 1,689 0.28 473 6 Justice Avenue CDS S. of loth Street Alley N. of 9th St. 1,035 32 3,680 0.28 1,030 6 Kewanee Avenue VG @ llth Place SLL 9th Street 990 32 3,520 0.28 986 6 Kirby Avenue SLL 9th Street N. ER loth Street 250 32 889 0.28 249 6 Kirby Avenue N ER loth Street NLL llth Place 745 36 3,146 0.28 861 6 Kline Avenue NLL 9th Street Deadend to North 160 32 569 0.28 159 Page Three TOTALS = --------- 45,391 -------- 12,709 0 1:90 24 1:90 26 1:90 72 1:90 27 1:90 23 1:90 85 1:90 24 1:90 73 1:90 19 1:90 41 1:90 39 1:90 10 1:90 35 1:90 6 504 Page Four DIST. STREET FROM 1994 CONTRACT MAINTENANCE PROGRAM: Residential Streets Single Course: 14 Pre -Coat, AC5 N/ 3% Latex TO LENGTH WIDTH 17-Nov-93 ASPHALT ROCK ROCK --------------- ------------ -------------- RATE ASPH. RATE C.Y. RATE C.Y. AREA 0 2 0 4 6 Kline Avenue SLL 9th Street VG @ 10th Street 270 32 960 0.28 269 1:90 11 2 Niter Avenue S. ER E. Bates St. HLL E. 4th Street 2,800 32 9,956 0.28 2,788 1:90 111 6 Orlando Ave. VG @ 15th Street N. ER Greek Circle 1,560 38 6,587 0.20 1,844 1:90 73 1 Queens Street VG @ N. University VG @ N. Avenue X 598 38 2,525 0.28 707 1:90 28 1 Rice Street VG @ N. University VG @ N. Avenue X 598 38 2,525 0.28 707 1:90 28 4 Richmond Avenue S. ER 84th Street N. ER 87th Street 720 32 2,560 0.28 717 1:90 28 4 Salem Avenue HLL 89th Street VG @ 83rd Street 1,680 32 5,973 0.20 1,673 1:90 66 1 Stanford St. VG @ N. Avenue X VG @ N. University 594 38 2,500 0.20 702 1:90 28 6 9th Street VG @ Justice Ave. CDS M. of Kline Ave. 1,530 32 5,090 0.20 1,649 1:90 65 6 10th Street ELL Justice Ave. Deadend to East 140 32 498 0.20 139 1:90 6 6 10th Street VG @ Justice Avenue ELL Kewanee Avenue 225 32 B00 0.28 224 1:90 9 6 10th Street Milwaukee Avenue MLL Kirby Avenue 1,175 38 4,961 0.20 1,389 1:90 55 6 llth Place E. ER Kirby Avenue ELL Milwaukee Avenue 1,230 22 3,182 0.20 891 1:90 35 Page Four TOTALS - 40,925 13,699 0 543 Page Five 1994 CONTRACT MAINTENANCE PROGRAM: Residential Streets 17-Nov-93 Single Course: 14 Pre -Coat, AC5 W/ 3% Latex ASPHALT ROCK ROCK ----' RATE -- ASPH. ---- ------ RATE C.Y. RATE C.Y. ---- DIST. STREET FROM TO LENGTH WIDTH AREA # 2 1 4 6 llth Place E. ER Kirby Avenue Alley E.of Justice Av 640 22 1,564 0.28 438 1.90 17 1 16th Street VG @ Avenue B I-27 Access Road 100 51 567 0.28 159 1:90 6 1 17th Street I-27 Access Road WLL Avenue B 300 51 1,700 0.28 476 1:90 19 1 17th Street ELL Avenue B WLL Avenue A 295 51 1,672 0.28 468 1,90 19 5 23rd Street WLL Iola Avenue W. ER Juneau Avenue 600 32 2,133 0.28 597 1:90 24 2 E. 75th Street ELL Ash Avenue W. ER Cedar Avenue 600 32 2,133 0.28 597 1:90 24 2 76th Street WLL Ash Avenue E. ER Avenue B 600 32 2,133 0.28 597 1:90 24 2 77th Street E. ER Avenue B E. ER Avenue D 660 32 2,347 0.28 657 1:90 26 5 79th Street W. ER Huron Avenue W. ER Hope Avenue 610 38 2,576 0.28 721 1:90 29 4 80th Street VG @ University VG @ Elgin Avenue 2,550 32 9,067 0.28 2,539 1:90 101 4 81st Street VG @ University VG @ Boston Avenue 1,270 32 4,516 0.28 1,264 1:90 50 5 81st Street ELL Huron Avenue 100' W. of Homestead 712 38 3,006 0.28 842 1:90 33 4 86th Street VG @ University ELL Boston Blvd. 750 46 3,833 0.28 1,073 1:90 43 Page --------- Five TOTALS 37,247 --------- 10,428 ------ --------- 0 415 Page Six 1994 CONTRACT MAINTENANCE PROGRAM: Residential Streets 17-Nov-93 Single Course: !4 Pre -Coat, ACS N/ 3% Latex ASPHALT ROCK ROCK --------------- RATE ASPH. ------------ -------------- RATE C.Y. RATE C.Y. DIST. STREET FROM TO LENGTH WIDTH AREA f 2 f 4 5 84th Street VG @ Salem Avenue CDS @ Richmond Avenue 350 32 1,519 0.28 425 1:90 17 5 85th Street ELL Richmond Avenue H. ER Raleigh Avenue 230 32 818 0.28 229 1:90 9 5 86th Street VG @ Richmond Avenue X. ER Raleigh Avenue 220 32 1,232 0.28 345 1:90 14 5 87th Street VG @ Salem Avenue VG @ Richmond Avenue 340 32 1,209 0.28 338 1.90 13 5 87th Street CDS @ Richmond Avenue CDS E.of Richmond Ave 1,000 32 4,456 0.28 1,248 1:90 50 5 96th Street VG @ Slide Road ELL Albany Avenue 1,410 38 5,953 0.28 1,667 1:90 66 Page Six TOTALS - 15,187 4,252 0 169 T 0 T A L Residential. - One -Course: 146i7509 a 41,088 s 0 a._al 631 Page Seven 1994 CONTRACT MAINTENANCE PROGRAM: Major Thoroughfares 17-Nov-93 Two -Course: 1st Course 02 Pre -Coat - 2nd Course A4 Pre-Caat,ACS W/ 3% Latex DIST. STREET FROM TO LENGTH - WIDTH 2 E. 50th Street ELL Avenue A NLL Quirt Avenue 5,200 82 2 E. 50th Street WLL Quirt Avenue W. ER S.E. Drive 4,340 82 5 Frankford Ave. SLL 82nd Street 600' S. of 98th St. 5,830 24 3 6 4 Indiana Ave. SLL 50th Street Alley N. of 62nd St. 3,400 86 6 Milwaukee Ave. SLL 4th Street NLL 19th Street 5,234 22 4 Quaker Avenue N. ER 54th Street Alley N. of 63rd St. 2,765 86 6 Slide Road VG @ 4th Street N. ER 13th Street 2,685 68 2 6 3 University Ave. Conc. @ 34th Street NLL 50th Street 5,135 78 T 0 T A L THOROUGHFARES TWO -COURSE - ASPHALT ROCK ROCK --------------- RATE ASPH. ------------ RATE C.Y. -------------- RATE C.Y. AREA 0 2 i 4 47,378 0.30 14,213 1:62 764 0.38 18,004 1:90 526 39,542 0.30 11,863 1:62 638 0.38 15,026 1:90 439 15,547 0.30 4,664 1:62 251 0.38 5,908 1:90 173 32,489 0.30 9,747 1:62 524 0.38 12,346 1:90 361 13,361 0.30 4,008 1:62 216 0.38 5,077 1:90 148 26,421 0.30 7,926 1:62 426 0.38 10,040 1:90 294 20,287 0.30 6,086 1:62 327 0.38 7,709 1:90 225 44,503 0.30 13,351 1:62 718 0.38 16,911 1:90 494 --------- --------- ------ 0.30 71,858 0.38 91,021 Page Seven -TOTALS = 239,528 162,879 3,863 2,660 Page Eight 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets 17-Nov-93 Two -Course: 1st Course 02 Pre -Coat - 2nd Course 04 Pre-Coat,AC5 W/ 3% Latex DIST. STREET FROM 6 Amherst St. ELL Frankford Ave. 2 Ash Avenue SLL E. 26th Street 6 Auburn St. ELL Chicago Ave. 2 E. Auburn St. Loop Access Road 2 Avenue B VG @ 19th Street 2 Avenue C VG @ 19th Street 2 Avenue C NLL 18th Street 2 Birch Avenue SLL E. 23rd Street 3 Canton Avenue SLL 26th Street 3 Canton Avenue ELL 27th Street 3 Canton Avenue SLL 29th Street 3 Canton Avenue VG @ 66th Street 2 Canyon Lakes Dr. SLL E. 19th Street ASPHALT ROCK ROCK --------------- RATE ASPH. ------------ RATE C.Y. -------------- RATE C.Y. TO LENGTH WIDTH AREA a 2 t 4 E. ER let Place 690 32 2,453 0.30 736 1:62 40 0.38 932 1:90 27 SLL E. 23rd Street 1,240 26 3,582 0.30 1,075 1:62 58 0.38 1,361 1:90 40 W. ER Elkhart Ave. 1,390 42 6,487 0.30 1,946 1:62 105 0.38 2,465 1:90 72 WLL N. Mulberry Ave. 550 20 1,222 0.30 367 1:62 20 0.38 464 1:90 14 Deedend N. of 15th St 1,750 51 9,917 0.30 2,975 1:62 160 0.38 3,768 1:90 110 SLL 18th Street 370 51 2,097 0.30 629 1:62 34 0.38 797 1:90 23 Deadend to North 218 51 1,235 0.30 371 1:62 20 0.38 469 1:90 14 VG @ E. 20th St. 890 26 2,571 0.30 771 1:62 41 0.38 977 1:90 29 VG @ 27th Street 295 26 852 0.30 256 1:62 14 0.38 324 1:90 9 NLL 29th Street 565 26 1,632 0.30 490 1:62 26 0.38 620 1:90 18 N. ER 30th Street 340 26 982 0.30 295 1:62 16 0.38 373 1:90 11 Loop Access Road 1,645 32 5,849 0.30 1,755 1:62 94 0.38 2,223 1:90 65 W. ER Quirt Avenue 2,310 32 8,213 0.30 2,464 1:62 132 0:38 3,121 1:90 91 --------- --------- ------ --------- 0.30 14,130 0.38 17,894 Page Eight -TOTALS - =47,092a 32,024 =��760----a-523 Page Nine 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets 17-Nov-93 Two -Course: 1st Course #2 Pre -Coat - 2nd Course 94 Pre-Coat,ACS W/ 3% Latex ASPHALT ROCK ------------ ROCK -------------- --------------- RATE ASPH. RATE C.Y. RATE C.Y. DIST. STREET FROM TO LENGTH WIDTH AREA 1 2 -. - 1 4 2 Cedar Avenue VG @ E. 20th Street NLL E. 23rd Street 886 26 2,560 0.30 768 1:62 41 0.38 973 1:90 28 2 Cedar Avenue SLL E. 23rd Street NLL E. 26th Street 1,195 26 3,452 0.30 1,036 1:62 56 0.38 1,312 1:90 38 2 Cedar Avenue SLL E. 26th Street NLL Coronado Dr. 156 26 451 0.30 135 1:62 7 0.38 171 1:90 5 2 Cedar Avenue VG @ E. 34th Street NLL E. 35th Street 410 32 1,458 0.30 437 1:62 24 0.38 554 1:90 16 1 Cornell Street VG @ N. Avenue S CG @ N. Avenue Q Dr. 1,070 38 4,518 0.30 1,355 1:62 73 0.38 1,717 1:90 50 1 N. Elder Avenue N. Loop Access Road Deadend to North 1,780 48 9,493 0.30 2,848 1:62 153 0.38 3,607 1:90 105 4 Elgin Avenue S. ER 66th Street CDS S. of 69th Street 1,261 38 5,324 0.30 1,597 1:62 86 0.38 2,023 1:90 59 1 Erskine St. E. ER Indiana Ave. VG @ Clovis Road 4,254 38 17,961 0.30 5,388 1:62 290 0.38 6,825 1:90 200 3 Flint Avenue NLL 59th Street SLL 58th Street 300 26 867 0.30 260 1:62 14 0.38 329 1:90 10 2 Fir Avenue W. ER Globe Avenue SLL E. 26th Street 838 26 2,421 0.30 726 1:62 39 0.38 920 1:90 27 1 N. Gary Avenue N. ER Oberlin St. N. Loop Access Road 1,135 48 6,053 0.30 1,816 1:62 98 0.38 2,300 1:90 67 3 Gary Avenue SLL 58th Street NLL 60th Street 620 32 2,204 0.30 661 1:62 36 0.38 838 1:90 24 3 Geneva Avenue VG @ 56th Street NLL 58th Street 910 26 2,629 0.30 789 1:62 42 0.38 999 1:90 29 --------- --------- 0.30 17,816 ------ --------- --------- 0.38 --------- 22,568 ------ --------- Page Nine -TOTALS = 59,391 40,384 959 658 Page Ten 1994 CONTRACT 14AINTEMANCE PROGRAM: Collector Streets 17-Nov-93 Two -Course: 1st Course 12 Pre -Coat - 2nd Course #4 Pre-Coat,ACS W/ 3% Latex ASPHALT ROCK ROCK --------------- RATE ASPH. ------------ RATE C.Y. -------------- RATE C.Y. DIST. STREET FROM TO LENGTH WIDTH AREA / 2 S 4 5 Genoa Avenue SLL 72nd Street NLL 73rd Street 260 32 924 0.30 277 1:62 15 0.38 351 1:90 10 5 Genoa Avenue SLL 73rd Street Alley S. of 73rd St. 130 32 462 0.30 139 1:62 7 0.38 176 1:90 5 1 N. Globe Ave. NLL E. Queens St. SLL E. Stanford St. 625 38 2,639 0.30 792 1:62 43 1 0.38 1,003 1:90 29 2 Globe Avenue VG @ E. 28th St. SLL E. 26th Street 735 32 2,613 0.30 784 1:62 42 0.38 993 1:90 29 2 Globe Avenue VG @ E. 34th Street NLL E. 40th Street 1,895 48 10,107 0.30 3,032 1:62 163 0.38 3,841 1:90 112 2 Guava Avenue NLL E. SOth Street NLL E. 37th Street 4,050 24 10,800 0.30 3,240 1:62 174 0.38 4,104 1:90 120 3 Hartford Avenue SLL 59th Street SLL 58th Street 325 32 1,156 0.30 347 1:62 19 0.38 439 1:90 13 2 Hickory Avenue VG @ E. 26th Street VG @ E. 28th Street 820 26 2,369 0.30 711 1:62 38 0.38 900 1:90 26 2 Hickory Avenue VG @ E. 28th Street COS S. of E. 28th St. 65 26 906 0.30 272 1:62 15 0.38 344 1:90 10 2 Hickory Avenue VG @ E. 34th St. NLL E. 35th Street 465 47 2,428 0.30 729 1:62 39 n,9A 923 1.90 27 2 Hickory Avenue NLL E. 40th Street RR N. of E. 40th St. 262 48 1,397 0.30 419 1:62 23 0.38 531 1:90 16 1 N. Ivory Avenue VG @ Stanford St. NLL E. Queens St. 620 38 2,618 0.30 785 1:62 42 0.38 995 1:90 29 2 Ivory Avenue VG @ E. 28th Street SLL E. 26th Street 855 32 3,040 0.30 912 1:62 49 0.38 1,155 1:90 --------- 34 --------- 0.30 --------- 12,439 ------ 0.38 15,755 --------- Page --------- Ten - TOTALS 41,459 --------- 28,194 ------ 669 460 Page Eleven 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets Two -Course: 1st Course 02 Pre -Coat - 2nd Course A4 Pre-Coat,AC5 M/ 3% Latex DIST. STREET FROM TO LENGTH WIDTH 2 Ivory Avenue VG @ Coronado Dr. VG @ E. 28th St. 465 32 2 Ivory Avenue VG @ E. 34th Street NLL E. 35th Street 410 26 4 Joliet Avenue SLL 96th Street S. ER 97th Street 335 38 4 Joliet Avenue S. ER 97th Street NLL 98th Street 510 20 5 Juneau Avenue S. ER 21st Street SLL 19th Street 815 32 2 Juniper Avenue VG @ SE Drive VG @ E. 28th Street 758 32 2 Juniper Avenue VG @ E. 28th Street CDS S. of E. 29th St. 400 32 1 Kent Street E. ER I-27 Access Rd. M. ER N. Quirt Ave. 5,011 20 5 Kewanee Avenue SLL 19th Street S. ER 24th Street 1,905 32 5 Kewanee Avenue S. ER 24th Street SLL 26th Street 675 32 5 Kewanee Avenue SLL 26th Street NLL 30th Street 1,300 19 5 LaSalle Avenue S. ER 20th Street SLL 19th Street 444 32 6 Mobile Avenue N. ER 15th Street NLL 13th Street 850 22 AREA ASPHALT --------------- RATE ASPH. ROCK ------------ RATE C.Y. M 2 17-Nov-93 ROCK -------------- RATE C.Y. t 4 1,653 0.30 496 1:62 27 0.38 628 1:90 18 1,184 0.30 355 1:62 19 0.38 450 1:90 13 1,414 0.30 424 1:62 23 0.38 537 1:90 16 1,133 0.30 340 1:62 18 0.38 431 1:90 13 2,898 0.30 869 1:62 47 0.38 1,101 1:90 32 2,695 0.30 809 1:62 43 0.38 1,024 1:90 30 1,872 0.30 562 1:62 30 0.38 711 1:90 21 11,136 0.30 3,341 1:62 180 0.38 4,232 1:90 124 6,773 0.30 2,032 1:62 109 0.38 2,574 1:90 75 2,400 0.30 720 1:62 39 0.38 912 1:90 27 2,744 0.30 823 1:62 44 0.38 1,043 1:90 30 1,579 0.30 474 1:62 25 0.38 600 1:90 18 2,078 0.30 623 1:62 34 0.38 790 1:90 23 ------- --------- 0.30 11,868 ------ --------- ------- 0.38 --------- 15,033 ------ --------- Page Eleven - TOTALS 39,559 26,901 638 440 Page Twelve DIST. STREET 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets Two -Course: 1st Course #2 Pre -Cost - 2nd Course #4 Pre-Coat,AC5 W/ 3% Latex FROM TO LENGTH WIDTH 6 Monticello Ave. NLL 15th Drive Deadend M. of 13th St 1,425 22 2 N. Mulberry Ave. N. ER E. Auburn St. Loop Access Road 880 17 6 Norfolk Avenue SLL 15th Street Alley S. of 18th St. 1,170 32 6 Orlando Avenue NLL 15th Street H. VG @ 18th Street 1,022 32 6 Orlando Avenue S. VG @ 18th Street N. ER 19th Street 405 32 2 Peach Avenue SLL E. 60th Street SLL E. 62nd Street 665 40 1 E. Queens St. WLL N. Quirt Avenue ELL N. Ivory Avenue 2,540 32 1 E. Queens St. ELL N. Ivory Avenue WLL N. Globe Avenue 690 38 1 E. Queens St. WLL N. Globe Avenue ELL N. Ash Avenue 2,010 32 6 SAnta Fe Drive SLL 29th Street ELL Slide Road 970 26 6 Utica Avenue SLL 15th Street NLL 19th Street 1,672 32 6 Utica Drive VG @ 19th Street NLL 17th Street 1,014 38 6 Utica Place NLL 15th Street SLL 13th Street 616 38 17-Nov-93 ASPHALT ROCK ROCK --------------------------- -------------- RATE ASPH. RATE C.Y. RATE C.Y. AREA S 2 # 4 3,483 0.30 1,045 1:62 56 0.38 1,324 1:90 1,662 0.30 499 1:62 27 0.38 632 1:90 4,160 0.30 1,248 1:62 67 0.38 1,581 1:90 3,634 0.30 1,090 1:62 59 0.38 1,381 1:90 1,440 0.30 432 1:62 23 0.38 547 1:90 2,956 0.30 887 1:62 48 0.38 1,123 1:90 9,031 0.30 2,709 1:62 146 0.38 3,432 1:90 2,913 0.30 874 1:62 47 0.38 1,107 1:90 7,147 0.30 2,144 1:62 115 0.38 2,716 1:90 2,802 0.30 841 1:62 45 0.38 1,065 1:90 5,945 0.30 1,783 1:62 96 0.38 2,259 1:90 4,281 0.30 1,204 1:62 69 0.30 1,627 1:90 2,601 0.30 780 1:62 42 0.38 988 1:90 ------ 0.30 --------- 15,616 ------ ------ 0.38 --------- 19,792 ------ Page Twelve - TOTALS 52,055 35,398 840 39 18 46 40 16 33 100 32 79 31 66 48 29 577 Page Thirteen 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets 17-Nov-93 Two -Course: 1st Course M2 Pre -Coat - 2nd Course U4 Pre-Coat,ACS W/ 3% Latex ASPHALT ROCK ROCK --------------- ------------ -------------- RATE ASPH. RATE C.Y. RATE C.Y. DIST. STREET FROM TO LENGTH WIDTH AREA M 2 0 4 6 York Avenue SLL 4th Street MLL Sth Street 270 32 960 0.30 288 1:62 15 0.38 365 1:90 11 6 York Avenue NLL 19th Street SLL 18th Street 510 32 1,813 0.30 544 1:62 29 0.38 689 1:90 20 4 York Avenue SLL 77th Street NLL 79th Street 595 38 2,512 0.30 754 1:62 41 0.30 955 1:90 28 2 Zenith Avenue SLL E. 16th Street NLL E. 19th Street 1,285 18 2,590 0.30 777 1:62 42 0.38 984 1:90 29 6 1st Place VG @ Amherst St. ELL Frankford Ave. 585 42 2,730 0.30 819 1:62 44 0.38 1,037 1:90 30 6 Sth Street WU York Avenue WLL Vicksburg Avenue 665 32 2,364 0.30 709 1:62 38 0.38 898 1:90 26 6 9th Street WLL Slide Road WLL Vicksburg Avenue 1,286 32 4,572 0.30 1,372 1:62 74 0.38 1,738 1:90 51 6 13th Street ELL Mobile Avenue CDS to East 300 22 1,083 0.30 325 1:62 17 0.38 412 1:90 12 6 13th Street WLL Monticello Ave. Deadend to West 265 22 648 0.30 194 1:62 10 0.38 246 1:90 7 6 14th Street WLL Milwaukee Ave. ELL Mobile Ave. 525 22 1,283 0.30 385 1:62 21 0.38 488 1:90 14 6 14th Street ELL Monticello Ave. WU Mobile Ave. 480 22 1,173 0.30 352 1:62 19 0.38 446 1:90 13 6 15th Drive COS W. of Monticello COS E. of Mobile Ave. 1,020 22 3,193 0.30 958 1:62 52 0.38 1,213 1:90 35 6 15th Street VG @ Orlando Ave. E. ER Norfolk Ave. 665 32 2,364 0.30 709 1:62 38 0.38 898 1:90 26 --------- 0.30 --------- 8,186 ------ --------- 0.38 10,369 Page Thirteen - TOTALS = --------- 27,285 --------- 18,555 ------ 440 --------- 302 Page Fourteen 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets 17-Nov-93 Two -Course: let Course 12 Pre -Coat - 2nd Course t4 Pre-Coat,ACS W/ 3% Latex ASPHALT ROCK ROCK --------------- RATE ASPH. ------------ RATE C.Y. -------------- RATE C.Y. DIST. STREET FROM TO LENGTH WIDTH AREA t 2 t 4 6 16th Street WLL Frankford Ave. W. Loop Access Road 010 38 3,420 0.30 1,026 1:62 55 0.38 1,300 1:90 38 6 16th Street ELL Quaker Avenue W. VG @ Orlando Ave. 870 32 3,093 0.30 928 1:62 50 0.30 1,175 1:90 34 6 16th Street E. VG @ Orlando Ave. WLL Norfolk Ave. 615 32 2,187 0.30 656 1:62 35 0.38 831 1:90 24 1 16th Street WLL Avenue A VG @ Avenue B 290 Si 1,643 0.30 493 1:62 27 0.38 624 1:90 18 6 17th Street WLL Norfolk Ave. E. VG @ Orlando Ave. 615 32 2,187 0.30 656 1:62 35 0.38 831 1:90 24 6 17th Street W. VG @ Orlando Ave. ELL Peoria Ave. 370 32 1,316 0.30 395 1:62 21 0.38 500 1:90 15 6 17th Street WLL Peoria Ave. ELL Quaker Ave. 500 32 1,778 0.30 533 1:62 29 0.38 676 1:90 20 1 18th Street I-27 Access Road WLL Avenue B 500 51 2,833 0.30 850 1:62 46 0.38 1,077 1:90 31 1 18th Street ELL Avenue B WLL Avenue A 295 51 1,672 0.30 502 1:62 27 0.38 635 1:90 19 5 20th Street WLL Kewanee Ave. ELL LaSalle Ave. 474 32 1,685 0.30 506 1:62 27 0.38 640 1:90 19 5 21st Street ELL Juneau Ave. WLL Iola Ave. 620 32 2,204 0.30 661 1:62 36 0.38 838 1:90 24 5 23rd Street E. ER Milwaukee Ave. E. ER LaSalle Ave. 660 32 2,347 0.30 704 1:62 38 0.38 892 1:90 26 2 E. 26th Street ELL Cedar Ave. ELL Ash Avenue 628 26 1,814 0.30 544 1:62 29 0.38 689 1:90 20 --------- 0.30 --------- 8,454 ------ --------- --------- 0.38 10,708 --------- ------ --------- Page Fourteen - TOTALS = 20,179 19,162 455 312 Page Fifteen 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets Two -Course: 1st Course M2 Pre -Coat - 2n4 Course 44 Pre-Coat,ACS W/ 3% Latex DIST. STREET FROM TO LENGTH WIDTH 2 E. 26th Street WLL Ivory Avenue VG @ SE Drive 260 26 3 27th Street WU Boston Avenue ELL Canton Ave. 325 26 3 27th Street WLL Flint Avenue ELL Gary Ave. 628 26 3 27th Street WLL Gary Avenue ELL Hartford Avenue 630 26 3 27th Street WLL Hartford Ave. ELL Indiana Ave. 628 26 2 E. 28th Street VG @ SE Drive W. ER Globe Ave. 1,730 26 3 29th Street WLL Boston Avenue ELL Elgin Avenue 1,250 26 3 29th Street WLL Elgin Avenue ELL Flint Avenue 630 42 5 30th Street ELL Kewanee Avenue ELL Milwaukee Ave. 1,325 32 2 E. 36th Street ELL Avenue A VG @ Cedar Avenue 630 32 l E. 46th Street ELL Avenue A WLL Globe Avenue 1,925 48 2 E. 52nd Street ELL Avenue A Deadend to East 400 48 3 55th Street WLL Elgin Avenue ELL Montery Drive 1,350 26 17-Nov-93 ASPHALT ROCK ROCK RATE ASPH. RATE C.Y. RATE C.Y. AREA M 2 1 4 751 0.30 225 1:62 12 0.38 285 1:90 8 939 0.30 282 1:62 15 0.38 357 1:90 10 1,814 0.30 544 1:62 29 0.38 689 1:90 20 1,820 0.30 546 1:62 29 0.38 692 1:90 20 1,814 0.30 544 1:62 29 0.38 689 1.90 20 4,998 0.30 1,499 1:62 81 0.38 1,899 1:90 56 4,361 0.30 1,308 1:62 70 0.38 1,657 1:90 48 2,940 0.30 882 1:62 47 0.38 1,117 1:90 33 4,711 0.30 1,413 1:62 76 0.38 1,790 1:90 52 2,240 0.30 672 1:62 36 0.36 851 1:90 25 10,267 0.30 3,000 1:62 166 0.38 3,901 1:90 114 2,133 0.30 640 1:62 34 0.38 811 1:90 24 3,900 0.30 1,170 1:62 63 0.38 1,482 1:90 43 ------- 0.30 --------- 12,805 ------ --------- ------- 0.38 16,220 --------- ------ --------- Page Fifteen - TOTALS = 42,688 29,025 687 473 Page Sixteen DIST. STREET 1994 CONTRACT MAINTENANCE PROGRAM: Collector Streets Two -Course: let course #2 Pre -Coat - 2nd Course #4 Pre-Coat,ACS W/ 3% Latex FROM TO LENGTH WIDTH 3 56th Street WLL Elgin Avenue E. ER Geneva Ave. 1,295 26 2 56th Street VG @ Temple Avenue VG @ Avenue 3 615 32 3 59th Street ELL Hartford Ave. WLL Gary Ave. 638 32 3 59th Street ELL Gary Avenue WLL Elgin Avenue 1,260 32 4 60th Street WLL Utica Ave. ELL York Ave. 1,900 32 2 E. 60th Street ELL Peach Ave. End of Paving to East 1,060 19 2 E. 61st Street ELL Avenue A Deadend to East 480 48 4 65th Street WLL Quaker Ave. W. ER Salem Avenue 790 38 5 72nd Street W. ER Genoa Avenue WI.L Frankford Ave. 650 32 5 73rd Street W. ER Genoa Avenue WLL Frankford Ave. 650 32 4 77th Street E. ER Slide Road WLL York Avenue 550 38 4 79th Street W. VG @ Gary Avenue CDS to West 490 32 4 79th Street E. VG @ Gary Avenue WLL Flint Avenue 620 32 17-Nov-93 ASPHALT ROCK ROCK --------------- -----'------ -------------- RATE ASPH. RATE C.Y. RATE C.Y. AREA 0 2 i 4 3,741 0.30 1,122 1:62 60 0.38 1,422 1:90 2,187 0.30 656 1:62 35 0.36 831 1:90 2,268 0.30 681 1:62 37 0.38 862 1:90 4,480 0.30 1,344 1:62 72 0.38 1,702 1:90 6,756 0.30 2,027 1:62 109 0.38 2,567 1:90 2,238 0.30 671 1:62 36 0.38 850 1:90 2,560 0.30 768 1:62 41 0.38 973 1:90 3,336 0.30 1,001 1:62 54 0.38 1,268 1:90 2,311 0.30 693 1:62 37 0.38 878 1:90 2,744 0.30 823 1:62 44 0.36 1.043 1:90 2,322 0.30 697 1:62 37 0.38 882 1,90 2,192 0.30 658 1:62 35 0.38 833 1:90 2,204 0.30 661 1:62 36 0.38 838 1:90 ------ --------- 0.30 11,802 ------ ------ 0.38 --------- 14,949 ------ Page Sixteen - TOTALS - 39,339 26,751 633 42 24 25 50 75 25 28 37 26 30 26 24 24 436 Page Seventeen DIST. STREET 4 79th Street 5 89th Street 5 93rd Street 4 96th Street 1994 CONTRACT MAINTENANCE, PROGRAM: Collector Streets Two -Course: let Course 02 Pre -Coat - 2nd Course 04 Pre-Coat,ACS W/ 3% Latex FROM TO LENGTH WIDTH ELL Flint Avenue CDS to East 500 32 ELL Vicksburg Avenue W. VG @ Salem Avenue 1,315 32 W. ER Slide Road ELL Chicago Avenue 2,343 42 WLL Joliet Avenue WLL Indiana Ave. 820 32 17-Nov-93 ASPHALT ROCK ROCK --------------------------- -------------- RATE ASPH. RATE C.Y. RATE C.Y. AREA @ 2 1 4 2,228 0.30 668 1:62 36 0.38 847 1:90 25 4,676 0.30 1,403 1:62 75 0.38 1,777 1:90 52 10,934 0.30 3,280 1:62 176 0.38 4,155 1.90 121 2,916 0.30 815 1:62 47 0.38 1,108 1:90 32 --------- 0.30 --------- 6,226 ------- 0.38 7,887 --------- Page Seventeen -TOTALS - 20,754 =61`655 --------- 14,113 ------ 334 TOTAL Thoroughfares - One-Course: 0.28 17,264 0 TOTAL Collectors - One -Course: 71,733 0.28 20,085 0 TOTAL Residential - One -Course: 146,750 0.28 41,088 0 TOTAL ONE - COURSE : 280,138 78,437 0 TOTAL Thoroughfares - Two -Course: 239,528 0.30 i71,858 3,863= 0.38 91,021 TOTAL Collectors - Two -Course: 397,801 0.30 119,342 6,415 0.38 151,165 T O T A L T W 0- C O U R S E 637,329 0.30 =191,200 10,278 0.38 242,185 G R A N D T O T A L= 917,467 511,822 10,278 230 685 796 1,631 3,112 2,660 4,411 7,071 10,183 _I _ 1 L r roll CURRENT WAGE DETERMINATIONS Resolution 1#2502 ` January 8, 1987 Agenda Item #18 t 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 tF. 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. •r r Ranette+.,.Boyd, City Secretary APPROVED T- ONTENT: Bi 1 P yne, D rector of Building Services B.C. McMINN, MAYOR APPROVED AS TO FORM: Do Id G. Vandiver, First 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 Asphalt Heaterman Asphalt Shoveler Concrete Finisher Concrete Finisher -Helper Electrician Flagger Form Setter Form Setter -Helper Laborer, General Laborer, Utility Mechanic Mechanic -Helper POWER EQUIPMENT OPERATORS Asphalt Paving Machine Bulldozer Concrete Paving Machinist Front End Loader Heavy Equipment Operator Light Equipment Operator Motor Grade Operator. Roller Scraper Tractor Truck Driver - Light Heavy Hourly Rate $5.25 4.75 7.35 4.75 10.50 4.75 6.50 5.50 4.75 5.80 6.50 6.00 6.00 5.25 6.50 5.85 6.40 6.40 8.00 5.25 5.25 5.50 5.25 5.25 EXHIBIT C Electric Construction Trades Prevailing Wage Rates Craft Hourly Rate •— Power Line Foreman $11.00 Lineman Journeyman 10.45 Lineman Apprentice Series 8.90 Groundman Series 7.25 EXHIBIT D Prevailing Wage Rates Overtime Rate The rate for overtime (in excess of forty hours per week) is 1 1/2 times base rate. EXHIBIT E Prevailing Wage Rates Weekend and Holiday Rate The rate for weekend and holiday is.1 1/2 times base rate. SPECIFICATIONS MATERIALS OF CONSTRUCTION 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. 2. CONCRETE A..Cement Cement shall conform to "Standard Specifications and Test for Portland Cement, "A.S.T.M." Serial Designation C150, Type I and Type III, and shall be an approved brand. B . Aggregate Description Concrete aggregates shall consist of natural, washed and screened sand, and washed and screened gravel or clean crushed stone conforming -to "Standard Specification for Concrete Aggregate, "A.S.T.M. Serial Description C-33-39 and item No. 360 of the Texas State Highway Specifications. 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 amount 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 incises. Aggregate for concrete construction proposed to be used in this project shall have a loss not to exceed 18% when subjected r to 5 cycles of the Magnesium Sulfate soundness test A.S.T.M. Designation C-88-90. Stockpiles 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 r IV-1 taken to prevent dusty conditions in the stockpile area from any sources. C. Water Water shall be clean, clear, free from oil, acid or organic matter and free from injurious amounts of alkali, salts or other chemicals. D. Concrete Materials Test Pre -Construction Tests 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 design mix 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 the Method of Making and Curing Concrete Compression and Flexure Test Specimens in the Field (ASTM Designation 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 days run or for each 50 cubic yards of concrete if a days 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 days 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. IV-2 A strength test shall consist of five standard test cylinders made from a composite sample obtained in accordance with the requirements of ASTM Designation C-172. Two of the 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, r or testing, it shall be discarded and the remaining two strengths averaged. Should more than one specimen representing a given test show definite defects, due to r- 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 proportions to correct such deficiency. Such change shall Fla 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. E. Concrete Design jr+ 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. Continuous mixing during transit will be insisted upon. Mix Design All concrete for curb and gutter, valley gutters, fillets and alley stubs, alley slabs, drainage channels, inlet boxes, headwalls, and medians shall be Class A concrete IV-3 with 5-t air entrainment (±1-1/2-'tolerance). The concrete mix design shall be based on water -cement ratio, and shall be as follows for the different classes of concrete. Minimum Sacks Max. Gal. Max. Slump Class Cement per C.Y. Water per sack 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 Class any test 3 day 7 day beam strength 28 day 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. Low Strength Concrete 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, 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 IV-4 streets other than thoroughfares and collectors and for alley returns, alley paving and reinforced gutter sections; r' Class F concrete is used for railroad sections.. G. Mixing 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 the "Standard Specifications for Ready Mixed Concrete," A.S.T.M. Serial Designation C94-38 ` and Item No. 502 of the Texas State Highway Specifications. 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. H. Curing Compounds Compounds used to form an air tight membrane over fresh concrete surface for curing purposes shall conform to Item 526, Texas State Highway Specifications and "A.S.T.M." Serial Designation C-309. 3. REINFORCING MATERIALS k E A. Wire Mesh Wire mesh reinforcing shall conform to "Standard Specifications for Welded Steel Fabric for Concrete Reinforcement" ASTM Designation 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 slab, or valley gutters. IV-5 B. Bar Reinforcing Reinforcing steel to be used on this project shall conform to A.S.T.M. Designation A-432 and shall be deformed to A.S.T.M. 305 requirements unless otherwise shown on the plans. C. Fiber Reinforcing (1) The fiber used shall be 100 percent virgin .polypropylene collated, fibrillated fibers specifically manufactured for use as concrete reinforcement, containing no reprocessed olefin materials. (2) The physical characteristics of the fiber to r- 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 IV-2-E. Quantities to be used shall conform to manufacturer's recommendations, unless otherwise directed by the Engineer. 4. JOINT MATERIAL A. Expansion Joint Materials Bituminous premolded expansion joint material shall conform to Item No. 420.2 (a) of the Texas State Highway Department Specifications. Expansion joints shall be placed as shown on the plans or as directed by the Engineer. B. Joint Sealing Material Joint sealing material shall be W.R. Meadows sof-seal.or approved equivalent 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 IV-6 s dine 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 r•• 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 true section and 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 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 "V" shaped groove in the face. 6. FLEXIBLE BASE (CALICHE) A. Description "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 know as "Soil Binder" and shall meet the following requirements f IV-7 when prepared in accordancewith 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 Texas Method 116-E, shall have a maximum allowable value of 55. 7. ASPHALT STABILIZED BASE -PLANT MIX (THD Item 292) 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 selected the contractor will not change to another source without the Engineer's approval) and asphaltic material, mixed hot in an approved mixing plant. The percent asphalt shall be determined by the Engineer in accordance with Test Method Tex 126-E and Tex 204-F or other established procedures. B. Materials (1) 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) Stockpiling. Storage. Proportioning and Mixing Stockpiling of Aggregates. 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 IV-8 R 7 and proportioning from these stockpiles will be the contractor's responsibility. 7 (3) Gradation Unless otherwise specified, the grading of the mineral aggregate shall conform to the limitations as shown below: This mixture shall meet the T.H.D. 1982 Specification Item (292) Grade 4 -- Grading requirements percent retained -sieves 1-1 2" ii 8" J2" 044 #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 Methods Tex -101-E procedure: The liquid limit shall not exceed................45 The plasticity index shall not exceed ............ 15 The linear shrinkage shall not exceed ............ 05 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 not contain more than 0.5% moisture prior to entering the pugmill for mixing with asphalt. C. Asphaltic Materials Asphalt for the paving mixture shall be of the type as determined by the Engineer and shall meet the requirements of Item 300, THD Specs, 1982 "Asphalt, Oils, and Emulsions." 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. (1) Asphaltic Stabilized Mixture The mixture shall consist of a uniform mixture of mineral aggregate and asphaltic material. The mineral aggregate will conform to the gradation requirements IV-9 specified. The asphaltic material shall form from 4 to 9% percent 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 SDHPT Bulletin C-14. The percent of asphalt in the mix shall be determined by Extraction ASTM D-2172, ASTM D-4125 Method of Test for asphalt content by Nuclear Method, Test Method Tex-210 -F or Test Method Tex.-126-F. (2) Tack Coat Asphaltic materials shall meet the requirements of the Item, "Asphalts, Oils, and Emulsions THD Item 30011, as approved by the Engineer. (3) Tolerances 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 Engineerbymore than 0.2 percent dry weight (based on total mixture). Asphaltic concrete pavement and asphaltic'stabilized base shall be machine layed and the equipment shall meet the requirements of THD 1982 specifications Item 528. Automatic screed controls for concrete spreading and finishing machines. 8. EQUIPMENT - MIXING PLANTS BLACK BASE AND HOT -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 the Item, "Weighing and Measuring Equipment." If automatic recording devices are IV-10 r required by the plans, they shall be in accordance with the THD Item, "Weighing and Measuring Equipment." A. Weigh -Batch Type (1) Cold Aggregate Bin and Proportioning Device The number of compartments in the cold aggregate bin shall be equal to or greater than the number of stockpiles of individual materials to be used. The bin shall be of sufficient size to share the amount of aggregate required to keep the plant in continuous operation and of proper design to prevent overflow of material from one compartment to another. The proportioning device shall be such as will provide a uniform and continuous flow of aggregate in the desired proportioning in a separate compartment. ( 2 ) pryer 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. (3) Screening and Proportioning 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 overload 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 ofbins indicated on the plans or as directed by the Engineer. (4) Aggregate Weigh Box and Batching Scales 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 T.H.D. Item 520,1982, "Weighing and Measuring Equipment." (5) 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 Item, "Weighing and Measuring Equipment." If a pressure type flow meter is used to measure the asphaltic material, the requirements of T.H.D. Item 520, 1982, "Weighing and Measuring Equipment," shall apply . ( 6 ) Mixer The mixer shallbeof the pug mill type and shall have a capacity of not less than 3,000 pounds (of natural aggregate mixture)in a single batch, unless otherwise shown on the plans. The number and position of blades 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 segregates the mineral aggregate or fails to secure a thorough and uniform mixture with asphaltic material shall not be used. This shall be determined by mixing the standard batch for the required time, then dumping the mixture, taking samples from its different parts and testing by Test Method Tex-210-F to show that the batch is uniform throughout. All mixers shall be provided with an automatic time lock 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) Surge -Storage System A surge -storage system may be used. It shall be adequate to minimize production interruptions during the normal days operation. A device such as a gob IV-12 7 a hopper or other similar devices approved by the Engineer to prevent segregation in the surge -storage r 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 item, "Weighing and Measuring Equipment". If trucks 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 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. r (4) Hot Aggregate Bin The hot bins shall be so constructed that oversize and overload material will be discarded through an overflow chute. Hot aggregate bins that become deficient in material shall activate a switch that automatically stops the plant until proper r- adjustments are made. (5) Hot Aggregate Proportioning Device The hot aggregate proportioning device shall be so designed that when properly operated, a uniform and continuous flow of aggregate into the mixer will be maintained. 6 IV-13 (6) Asphaltic Material Spray Bar The asphaltic material spray bar shall be so designed that the asphalt will spray uniformly and continuously into the mixer. (7) Asphaltic Material Meter An asphaltic material recording meter meeting the requirements of the Item, "Weighing and Measuring Equipment", 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 enteEing the recording meter shall be maintained at ± 10 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 Item, "Weighing and Measuring Equipment", shall apply. (8) Mixer The mixer shall be of the pug mill 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 pug mixer and/or pitch of the mixing paddles shall be so adjusted to maintain a level of mixture in the pug mixer between the shaft and the lower paddle tip (except at the discharge end). (9).Surge-Storage System A surge storage system may be used. It shall be adequate to minimize production interruption during IV-14 r 7 7 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 Item "Weighing and Measuring Equipment." 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. C. DRUM MIX PLANT 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 and Feed System The number of compartments in the cold aggregate bin shall be equal to or greater than the number of stockpiles of individual materials to be used. The bin 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 of one bin to that of another bin. The feed system shall provide a uniform and continuous flow of aggregate in the desired proportion to the dryer. Each aggregate shall be proportioned in a separate compartment 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 IV-15 measuring device as required by the Item, "Weighing and Measuring Equipment". 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 Item, "Weighing and Measuring Equipment", at the selected rate and it can be satisfactory demonstrated to the Engineer that mixture uniformity and quality have not been adversely affected. (2) Scalping Screen A scalping screen shall be required, unless otherwise shown on the plans, and shall be located ahead of any weighing device. (3) Asphaltic Material Measuring System An asphaltic material measuring device meeting the requirements of the item, "Weighing and Measuring Equipment," 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 asphaltic material. 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 Item, "Weighing and Measuring Equipment", shall apply. (4) Synchronization Equipment for Feed Control System 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. IV-16 I (5) Drum Mix The drum mixing system shall be of the type that continually agitates the aggregate and asphalt mixture during heating and in which the temperature can 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. (6) Surge Storage System A surge storage system will be required. It shall be adequate to minimize the production interruptions during the normal dayfs 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 Item, "Weighing and Measuring Equipment." 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. D. ASPHALTIC MATERIAL HEATING EQUIPMENT r Asphaltic material heating equipment shall be adequate to t 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 recording thermometer with a 24-hour chart that will record the temperatures of the asphaltic material at the! highest temperature. 7 IV-17 E. 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 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 equipped with a flexiblespring and/or hydraulic type hitch 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 asphaltic mixture in a windrow and then placing the mixture in the finishing machine with loading equipment will be permitted provided that the loading equipment is constructed and operated in such manner that substantially all of the mixture deposited on the roadbed is picked 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. Automatic screed controls, if required, shall meet the requirements of the Item, "Automatic Screed Controls for Asphaltic Concrete Spreading and Finishing Machines". F. Rollers It shall be the responsibility of the Contractor to have rolling equipment available on the job to properly compact IV-18 i the paving mixture in place as required without delay to the laydown operation. Rollers provided shall meet the r" 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 Item, "Rolling (Pneumatic Tires)," Type B, unless otherwise specified on the plans. (2) Two Axle Tandem Roller (Required on All Hot Mix Surfacing) 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. (5) 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 wheel 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. (6) Vibratory Steel -Wheel Roller (Required on all Black Base) 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. IV-19 (7) Straightedges and Templates 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. (8) Alternate Equipment When permitted by the Engineer in writing, equipment other than that specified which will consistently produce satisfactory results may be used. (9) Inspection 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 and to perform the calibration checks as required by the Engineer. G. STOCKPILING STORAGE PROPORTIONING AND MIXING (1) Stockpiling of Aggregates Prior to 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 aggregates 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 aggregates from stockpiles and/or sources. More than one stockpile will be permitted unless otherwise shown on plans.The gradation requirements for the individual stockpiles and proportioning from thesestockpiles will be the Contractor's responsibility as approved by the Engineer. (2) Storage and Heating of Asphaltic Materials 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 the Item,"Asphalts, OIls and Emulsions". All equipment used in the storage and handling of asphaltic material IV-20 7 L 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. (3) Feeding and Drying of Aggregate The feeding of various sizes of aggregate to the dryer shall be done through the cold aggregate bin and 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. (4) Proportioning 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 with these specifications. The asphaltic material and aggregates may be proportioned by weight or by volume based on weight using the specified equipment. (5) mixing (a) Weigh -Batch Type Mixer 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. The differential in temperature of the aggregates and the asphalt as they enter the pug mixer shall not exceed 250 F. Temporary storing or holding of the asphaltic mixture by the surge -storage system may be used during the normal day's operation. Overnight r IV-21 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. (b) Continuous -Type 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 pug mixer shall not exceed 250 F. Checks on asphalt used shall be made at least twice daily comparing the asphalt used in ten loads of completed mix as shown on the asphalt recording meter and the design amount for these ten loads. The acceptable percent of variation between the asphalt used and the design amount will be as shown on the plans or as determined by the Engineer. 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 IV-22 Engineer. The moisture content shall be determined in accordance with Test Method Tex-212-F, Part II. r The mixture produced from each type of mixer shall not vary from the specified mixture by more than r 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. H. CONSTRUCTION METHODS Temperature Requirements A. HMAC - November 1 to April 1 1. The asphaltic mixture shall not be placed when the r- air temperature is below 550 F and falling. 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 F air temperature is below 500 F and falling. 2. The asphaltic mixture may be placed when the air temperature is above 450 F and rising. C. Asphalt Stabililzed Base 1. The asphaltic mixture shall not be placed when the temperature is below 452F and falling. 2. The asphaltic mixture may be placed when the air temperature is above 40OF 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 or 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 7 IV-23 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 250 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. (1) Prime Coat 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 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 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 when directed by the Engineer. (3) Transporting 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, unless approved by the Engineer. IV-24 F(4) Placing Generally, the asphaltic mixture shall be dumped and spread on the approved prepared surface with the specified spreading and finishing machine, in such a manner that 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. r- 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 r 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. When the asphaltic mixture is placed in a narrow strip r along the edge of an existing pavement, or used to level up f small areas of an existing pavement or placed in small r' 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. 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 7 IV-25 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. 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 gasoline, oil, grease or other foreign matter on the roadway, either when the rollers are in operation or when standing. (3) 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 rollers, shall be thoroughly compacted with lightly oiled tamps. J. SURFACE FINISH 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 THE WORK AND OPENING TO TRAFFIC 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 course shall comply with the State laws governing traffic on highways unless otherwise authorized by the IV-26 r 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 compacted pavement shall be removed from locations designated by the Engineer to enable him to determine the composition, compaction, and density of the pavement. Samples from 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 Texas State Highway Department Specification, Item 300. 10. HOT MIX ASPHALTIC CONCRETE SURFACE (A). Aggregate General 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 Laboratory for testing and approval by the Engineer. 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 34, unless otherwise shown on the plans when tested in accordance with Test Method Tex.-203-F. IV-27 The percent of flat or elongated slivers of stone for any course shall not exceed 25%,when tested in accordance with Test Method Tex 224-F. Aggregate that appears susceptible to film stripping, when tested in accordance with Test Method Tex'218-F or ASTM D-1664, shall be rejected or conditioned with an anti -stripping agent, as directed 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 and 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. (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 90% crushed faces when tested in accordance with.Test Method (Tex.-413-A). The aggregate shall have a IV-28 maximum of 15% loss when subjected to 4 cycles of the Magnesium Sulfate Soundness Test (A.S.T.M. C-88-83). When coarse aggregate is tested in accordance with Test Method Tex.-217-F, the amount of organic matter, clays, loams or particles coated therewith or other undesirable materials shown on the plans shall not exceed 2 percent. When it is specified that the coarse aggregate be sampled during delivery to the plant, from the t stockpile, or from the cold bin, the material removed when tested in accordance with test method Tex.-217-F r` (Part II, 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 the Test Method Tex.-106-E. However, where the coarse aggregate contains less than 5% of fine aggregate and the fine aggregate is of the same or similar material as the coarse aggregate, the P.I. requirements for the material passing the No. 40 sieve 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, Test Method Tex-410A. Coarse aggregate from each source shall meet the abrasion requirements specified. (2) Fine Aggregate The fine aggregate shall be that part of the aggregate passing the No. 10 sieve and shall consist of sand or screenings or a combination of sand and screenings. d The plasticity index of that part of the sand passing the No.40 sieve shall not be more than 6 when tested by r' Test Method Tex-106-E. The plasticity index of that part q of the screenings passing the No. 40 sieve shall be not more than 9, unless otherwise shown on plans, when tested by Test Method Tex-106-E. Fine aggregate from each source shall meet plasticity requirements. fill IV-29 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. (3) Mineral Filler 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 Test Method Tex-200-F (Dry Sieve Analysis), it shall meet the following grading requirements: Per Cent By Weight Passing a No. 30 sieve 100 Passing a No. 80 sieve, not less than 90 Passing a No. 200`sieve, not less than 65 (B) ASPHALTIC MATERIAL (1) Asphalt for Paving Mixtures r 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 on -- written permission of the Engineer. (2) 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 IV-30 F. r` specified for the type of paving mixture with 30 to 50 percent by volume of gasoline and/or kerosene. If r" 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 r, kerosene, not to exceed 15 percent by volume. (C) PAVING MIXTURES Types The paving mixture shall consist of a uniform mixture of !` coarse aggregate, fine aggregate and asphaltic material. The grading.of each constituent of the mineral aggregate shall be such as to produce, when properly proportioned, a mixture which, when tested in accordance with Test Method Tex-200-F (Dry Sieve Analysis), will conform to the limitations for master grading given below for the type specified. (1) Type "C" (Coarse Graded Surface Course) Passing 7/8" sieve... 0........................ 100 Passing 5/8" sieve.......................98 to 100 Passing 5/8" sieve, retained on 3/8" sieve....................................12 to 25 ` Passing 3/8° sieve, retainedonNo. 4 sieve.... .......... . . ........15 to 30 �. Passing No. 4 sieve, retained on No. 10 1 sieve .................................... 12 to 30 Total retained on No.10 sieve.....................................53 to 65 Passing No. 10 sieve, retained on No. 40 sieve .................................... 10 to 20 Passing No. 40 sieve, retained on No. 80 sieve ..................................... 5 to 15 Passing No. 80 sieve, retained on No. 200 sieve......................................5 to 15 Passing No. 200 sieve ..................... .1 to 6 IV-31 (2) Modified Type "C" (Coarse Graded Surface Course) The Engineer may Type "C" Surface the limits of the the upper limits the lower limits (D) LABORATORY CONTROL designate the use of a modified Course. This design will stay in above Type "C".but may vary from of certain sieve designations to of other sieve designations. If the Contractor or supplier wish 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 Street Superintendent. 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. 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: Per Cent by Weight Passing 5/8" sieve, retained on 3/8" sieve .......................................+ or -3 Passing 3/8" sieve, retained on No. 4 sieve .......................................+ or -3 IV-32 Passing No. .4 sieve, retain ed on No. 10 sieve ................................. .....+ or -3 Total retained on No. 10 sieve .......................................+ or -3 Passing No. 10 sieve, retained on No. 40 sieve .......................................+ or -2 Passing No. 40 sieve, retained on No. 80 sieve .......................................+ or -2 Passing No. 80 sieve, retained on No. 200 sieve .......................................+ or -2 Passing No. 200 sieve .......................................+ or -2 Asphalt Material ..........................+ or -0.2 (F) EXTRACTION AND GRADATION TESTS rW Samples of the mixture when tested in accordance with 4, Test Method Tex-210-F 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. (See Section IV-7-C (1) for methods of extraction of asphalt) During construction, if grading or asphalt content exceeds the tolerances stated herein, production will be discontinued until such time as the Hot -Mix Asphaltic Concrete mixture has been corrected and removed and replaced at no cost to the Owner. (1) Sampling and Testing It is the intent of this specification that the mixture will be designed to produce a mixture of optimum density and stability, as determined by the 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 to the pavement. Samples for each day, IV-33 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. Thoroughfare Residential Traffic Traffic (2) Design Method Min. Max. Min. Max. Marshall No. of compaction blows, each end of specimen 75 50 Stability, Lbs. 1200 --- 1000 --- Flow, units of 0.01 in 8 .16 8 18 % Air Voids Surfacing or Leveling 3 5 3 5 Stability and density tests are control tests. If the laboratory stability and/or density 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 stability and density 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. IV-34 7 7 r 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 dimension striping, lighting, painting, coloring and placement of barricades shall be in accordance to the details and design as set forth in the Texas Manual on UNIFORM TRAFFIC CONTROL DEVICES for Street and Highways, Part VI, issued in May, 1983. 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 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. r' Important is standardization with respect to design and k placement, and uniformity of application is equally important. Identical conditions should always be marked with ,., the same type of sign, irrespective 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 rR visibility if requested by the Engineer. Where there is serious interference from extraneous light sources, and a reflectorized sign is not likely to be 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:. ti IV-35 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 separatecompensation 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. SEAL COAT AND TWO -COURSE MAINTENANCE A. GENERAL The following paragraphs give the specifications on the various materials which are to be used in seal coat and two -course maintenance projects. All materials shall be subject to the approval of the Engineer before being used. B. ASPHALTS Asphalts for use on thisprojectshall comply with Texas State Highway Department Specifications, Item 300 including revisions, and a certified copy of the test results will be furnished to the City C. ASPHALT HEATERS 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 is manufactured by a reputable concern and there is positive circulation of the asphalt throughout the heater. Agitation with steam or air will not be permitted. The heating apparatus shall be equipped with a recording thermometer with a 24-hour chart that will record the temperature of the asphaltic material where it is the highest temperature. D. AGGREGATE FOR SEAL AND TWO -COURSE PURPOSES All gravel or pre -coated gravel or pre -coated crushed stone shall have a maximum of fifteen percent (15%) loss when tested by the four (4) cycle magnesium sulfate soundness test A.S.T.M. C-88-90. Pre -coated or crushed gravel shall have a minimum of 90 percent IV-36 r of the particles retained on the No. 4 sieve with more than one crushed face, as determined by Test Method Tex-413-A (particle count) and T.H.D. 302.2. The percent of flat or elongated slivers of stone or gravel for any course, shall not exceed 25%, when tested in accordance with Test Method Tex 224-F. Final acceptance of the aggregate shall be made only after the material is in stockpile in the City of Lubbock. 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 Street Superintendent. SEAL COAT Two Course Aggregate grading (S.H.D. P.B. #4 Pre -Coated Crushed Gravel, Pre -Coated Crushed Stone). Percent by Weight r' Retained on 5/8" sieve...................0 - 0 Retained on 1/2" sieve...................0 - 5 Retained on 3/8" sieve..................20 - 45 Retained on 14 sieve....................8.5 - 100 Retained on 110 sieve...................95 - 100 Aggregate Grading (S.H.D. P.B. #2 Special Pre -Coated Crushed Gravel, Pre -Coated Crushed Stone). Percent by Weight Retained on 7/8" sieve...................0 - 3 Retained on 3/4" sieve...................6 - 9 Retained on 5/8" sieve..................45 _ 80 Retained on 1/2" sieve..................80 100 Retained on #10 sieve...................98 - 100 STOCKPILES 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 r IV-37 suitable material approved by the Engineer, when sandstorms possibilities exist. Care will be taken to prevent dusty conditions in the stockpiles area from any sources. IV-38 DETAILS OF CONSTRUCTION p� r ` Details of Construction 1. Concrete A. Curb and Gutter (Class A -Concrete) Description This item shall consist of Portland Cement 30" concrete curb and gutter, 24" concrete curb and gutter, 30" separate gutter, or 24" 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 behind the curb. (1) Curb Openings ` 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 rr 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. (2) Excavation and Subgrading (See Section V-2) 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 1/211 (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 95% Standard Proctor Density (A.S.T.M. D- 698) with pneumatic rolling to correct elevation prior to setting forms. Before completion of curb and gutter, all traffic signs and street name marker, found in the way of paving will immediately be relocated behind the proposed curb and gutter by the Contractor. V-1 ( 3 ) Setting Forms Forms for concrete 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. (4) Placement (Including Making Joints) Sufficient concrete shall be placed toallowfor 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. V-2 r ` (5) Finishing 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 continuous grade down the flow -line the length of the gutter. Curb and gutter shall be finished uniformly by wood trowelling to an accurate cross-section. Extra water will not be added for finishing. The final finish will be accomplished with a brush, the last stroke being one from 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 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 gutter. 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 i` 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 r 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 f be 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 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 have been inspected by the Engineer. V-3 r- C (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. 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. 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. (8) Curing 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, providedsuchmaterial and method is first approved by the Engineer. (9) Filling Behind Curb_ After the forms are removed and the concrete has cured, the contractor shall fill the area behind the curb with top soil. The area between the sidewalk and the curb or V-4 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 dumping caliche. (10) Replacement of Damaged Curb and Gutter or Gutter 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. Concrete 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. B. Reinforced Concrete 30" Separate Gutter (Class E Concrete) Description This item shall consist of Portland cement 30" 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. (1) Subgrade Preparation (See Section V-2 (2) Reinforcing Steel - See Section 3 Under Materials of Construction (3) Placement of Reinforcement Care shall be taken to tie the (3) three horizontal # 3 bars to the (3) three vertical # 3 bar pins at a point 3" above the bottom. C. Reinforced CONCRETE VALLEY GUTTERS (CLASS C and Class E Concrete) Description V-5 r 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-Number 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 61Ix6" 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. (1) Subgrade Preparation (See Section V-2) (2) Reinforcing Steel - See Section 3 under Materials of Construction. (3) Placement of Reinforcement Care shall be taken to hold the steel in the center of the slab, high chairs or precast concrete blocks shall be 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. (1) Forming 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, V-6 joints, etc. to be formed, the forms shall extend the entire depth of concrete. (2) Subarade Preparation (See Section V-2 (3) Reinforcing Care shall be taken to securely hold the welded r.. wire mesh 3" above the bottom of the slab by use p of high chairs or pre -cast concrete blocks. (4) Placement 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. r 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. (5) Finishing 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 V-7 without waves in the edge and without pockets in the flow line. (6) Curing and Protection 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 Citv Sanitation Department shall be notified of all alley return and alley paving 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. (7) Removing Forms 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 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 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 have been inspected by the Engineer. V-8 { (8) 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. E. Reinforced Concrete Median Curb (Class A Concrete) 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. (1) Subgrade Preparation (See Section V-2 F. Reinforced Concrete Railroad Crossing (Class F Concrete) Description This item shall consist of the construction of Class F reinforced concrete as shown on Concrete Railroad Crossing Details. (File #2-B-92 (2)). (1) Subgrade Preparation (,See Section V-2 (2) Reinforcing Steel Bars to be Used) Reinforcing steel to be used on this project shall conform to A.S.T.M. Designation A-432 and shall be deformed to A.S.T.M. 305 requirements. (3) Placement of Reinforement V-9 Care shall be taken to hold the (1/211) 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. G. Reinforcing Concrete Drainage Slabs (Class A Concrete) This item shall consist of a concrete slab (511) thick and containing wire mesh reinforcing which shall conform to "Standard Specification for Welded Steel Wire Fabric For Concrete Reinforcement" ASTM Designation A-185. A transverse dummy groove contraction joint, as described in illustration 2-A-101, will be required every (13) feet. (1) Subgrade Preparation (See Section V-2) H. Concrete Pavement - Class C concrete Description 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. Materials (1) Cement 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 Designation: V-10 r I C150. 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 Designation C150, the specific surface area of Type I cement shall not exceed 2,000 square centimeters per gram as measured by the Wagner Turbidmeter in accordance with Test Method Tex- 310-D. (2) Admixtures 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 may be used in the rate of dosage specified by the Engineer. Admixtures shall not be used to replace cement. Admixtures shall comply with all the requirements and be measured and dispensed in accordance with T.H.D. Item 437, "Concrete Admixtures". (3) Coarse Aggregate. Coarse aggregate shall consist of durable particles of crushed limestone (Brownwood Type) of reasonably uniform quality throughout, free r from injurious amounts of salt, alkali, l 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 t 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. r- 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 1-3/4" sieve......................0% Retained on 1-1/2" sieve................0 to 5 % Retained on 3/4" sieve.................30 to 65% V-11 Retained on 3/8" sieve.................70 to 90% Retained on No. 4 sieve...............95 to 100% Loss by Decantation Test Method Tex-406-A ...1.0% 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. Each aggregate stockpile shall be reworked with suitable equipment as required by the Engineer to remix the material to provide uniformity of the stockpile. - (4) Fine Aggregate. Fine aggregate shall consist of sand or a combination of sands, and shall be composed of clean, hard, durable,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. (5) Fine Aggregate Exclusive of Mineral Filler 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 V-12 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 5% Retained on No. 8 sieve..............0 to 20% Retained on No. 16 sieve ............ 15 to 30% Retained on No. 30 sieve ............ 35 to 75% Retained on No. 50 sieve ............ 70 to 90% Retained on No. 100 sieve .......... 90 to 100% 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. (6) Mineral Filler Mineral filler shall consist of clean stone dust, crushed sand, 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% Retained on No. 200 sieve...............0 to 35% At the time of its use the mineral filler shall be free from frozen material, and aggregate containing foreign material will be rejected. (7) Mixing Water 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 V-13 as CL. nor more than 1,000 parts per million of sulfates as SO4. ^ 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 AASHO Designation: T 26. (8) Steel Dowel Bars 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 Designation: A615. The free end of dowel bars shall be smooth and free of shearing burrs. (9) Steel Reinforcement 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 or Grade 40 for concrete reinforcement. Bars that require bending shall be Grade 40 conforming to requirements of ASTM Designation: A-615. High yield reinforcing steel shall be either (1) open-hearth, basic oxygen or electric -furnace new billet steel conforming to the requirements of ASTM Designation: A-615 Grade 60 or (2) rail steel bars for concrete reinforcement, conforming to the requirements of ASTM Designation: 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 Designation: 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 Designation: A 497. Mats that have been bent or wires dislocated or parted during shipping or project handling shall be realigned to within V-14 7 _ one half inch of 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 Designation: A-184. (10) Mechanical Vibratory Equipment 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 r where the double strike off method of placement is employed, and the vibrators shall not be i V-15 operated for more than 15 seconds while the machine upon which theyare installed is standing still. Approved hand manipulated mechanical vibrators shall be furnished in the number required for provision of proper 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. 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. (11) Finishing 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. V-16 r Hand -manipulated vibrators shall be used for areas not covered by the mechanical vibratory C` 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. r' When field conditions are such that additional ' moisture is needed for the final concrete surface finishing operation, the required water r• shall be applied to the surface by fog spray only and shall be held to a minimum. After finishing is complete 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 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 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 r^ Engineer but shall not exceed the requirements i of these specifications. F V-17 7 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 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. (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 3,600 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. V-18 r l: r i Concrete specimens shall be prepared, cured and tested as outlined in THD Bulletin C-11. (14) Workability of Concrete Concrete shall be uniformly 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 THD Bulletin C-11. The mix will be designed with the intention of producingconcretewhich will have a slump of 1- 1/2 inches when tested in accordance with THD Bulletin C-11. The slump shall not be less than 1 inch nor more than 3 inches. (15) Mix Design 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 V-19 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 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. (16) Subgrade and Forms Preparation of subgrade. V-20 r 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 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 V-2. r 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 r f exceptional cases and only where suitable protection in the form of two-ply timber mats or other approved material is provided. (17) Placing and Removing Forms 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. r 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 V-21 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 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 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 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 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. I. Concrete Mixing and Placing (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 V-22 r 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 time 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 mortar. The additional mortar 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 40F, 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 500 F 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 320 F, or below, before concrete has been placed 4 hours. Such V-23 r t protection shall remain in place during the period the temperature continues below 320 F 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 spading concrete against forms and at all joints to prevent the forming of honeycombs and voids. 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 specified placing time may be extended to a maximum of 45 minutes. (3) Reinforcing Steel All reinforcing steel, including steel wire fabric 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 V-24 r C 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 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. (4) Joints 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 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 V-25 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. (5) Weakened Plane Joints 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. (6) Contraction Joints 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 V-26 r 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 be sawed in a uniform pattern as directed by the Engineer, and they shall be completed before uncontrolled cracking of the pavement takes place. All joints shall be 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. (8) Joint Sealers After the joints in the hardened concrete have been repaired (if necessary) and cleaned to the satisfaction of the Engineer, the joints will be filled with the W.R. Meadows sof-seal or approved equivalent. After the sealant is installed it will 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. (10) Spreading and Finishing All concrete pavement 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. V-27 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 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 V-28 r 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 Q the opinion of the Engineer, weather or other conditions make it advisable to provide an r` extension of the time of protection. At the end of the 7 day period and as long r 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 V-29 r is 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. 2. Earth Work A. Subgrade Preparation for curb and gutter, streets, paving (asphalt and concrete) alley returns, alley paving, valley gutters, and earth work. Description 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 6" 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 95% Standard Proctor Density (A.S.T.M. D-698) in conformity to the line, grade and V-30 f 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. t 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 r 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. (1) Scraper Work 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 exceed 23 cubic yards capacity as rated loaded flush by the manufacturer. (2) Compaction The subgrade will be wetted and rolled to secure 95% Standard Proctor Density. Before placement of the base and/or curb and gutter and/or concrete valley gutter _ and/or alley return slab and/or sidewalk, the subgrade will be checked by test rolling six (6) times or more if required by the Engineer with a self-propelled roller weighing not less than 35 tons. Any soft of unstable spots found by test rolling will be corrected by removing the soft or unstable material and replacing it with suitable soil compacted to 95% Proctor Density. ? The areas so corrected shall be test rolled as specified above. (3) Intersection Special care shall be exercised in grading street !� intersections where dips are located so that the cross k 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 r V-31 streets. Wider street dips will be blue topped as shown on the detail sheet. (4) Prosecution of the Work 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 caliche 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 locate a suitable site for dumping the waste excavation. In 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. (6) Subgrade for Alley Pavin 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 V-32 r 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 to shape the portion of the alley outside of the limits of the concrete slab so that all drainage in the alley will be to the invert of the concrete slab. Excess excavated materials shall be hauled to any approved location. B. Embankment Description 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 backf filled 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 P 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 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 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 V-33 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 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. _ Minor quantities of rock encountered in constructing earth embankment shall be incorporated in the specified embankment layers, or may placed in accordance with the requirements 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 outside the limits of the completed roadbed width where the size of the rock prohibits their incorporation in the normal embankment layers. Each layer of embankment shall be uniform as to material, density and moisture content before beginning compaction. Where layers of unlike materials abut each other, each layer 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 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 V-34 r- an undue waste of water. Such procedure shall be subject to the approval of the Engineer. (1) Compaction 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 A.S.T.M. D-698. ( After each section of earth embankment or select material is complete, tests as necessary will be made r. by the Engineer. If the material fails to meet the 1 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 specified density. 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 OM subgrade. All irregularities, depressions, weak or soft spots 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 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 V, Item 2 (A] Compaction.) V-35 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 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 specified minimum depth of fill above the pipe has been placed and consolidated in accordance with these provisions. 3. ]Base Course The base course shall consist of a minimum of six (611) or nine (911) inches of compacted approved calicheI black base or combination of caliche and black base material shaped in accordance with the typical cross -sections provided in the plans and to the grades established by the Engineer. V-36 j r. P A. Hauling and Placing 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 (611) inches of compacted base material on all units except major thoroughfares street:. On these streets the Contractor will construct nine (911) inches of compacted base material. B. Processing 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 r- 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 and 95% Proctor Density has been attained. All nine (911) inch compacted caliche base shall be I 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 95% of 1 "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. 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 base will be test.rolled six (6) times with a 35 ton roller and approved by the Engineer before succeeding layers are placed. A delay in construction of the next succeeding layer of black base caused by rain, snow, etc. will require re -rolling and approval prior to construction of the next layer. The utilization of the traffic to compact and bind the base is an essential part of the construction, and whenever V-37 possible the base course shall be opened to traffic, and the Contractor shall direct and distribute the traffic v uniformly over the entire width of the base course. During the period of at least seven (7) days that traffic is being directed over the base, the caliche base shall be satisfactorily maintained by the use of water trucks, blades, drags and such other equipment as is required. The base course shall be so maintained until the wearing surface is placed thereon. The surface shall not be placed — on base course that exceeds optimum moisture by two (2%) per cent. C. Finishin Description The compacted base shall be finished and shaped immediately preceding the application of the surface treatment. All loose or unconsolidated material shall be removed and the surface moistened and rolled with a steel wheel roller. All irregularities, depression or weak spots which develop during compaction shall be corrected by scarifying the areas affected, adding or removing material as required, reshaping and recompacting by sprinkling and rolling. (1) Weak Spots in Base The finished base shall be checked by a minimum of six (6) test rollings witha 35 ton roller. Any weak spots found shall be remedied before the surface is applied. The weak spots may be remedied by reprocessing the area in which the weak spot is found in which case the base will be allowed to cure for 72 hours before the surface is applied. 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. (2) Allowable Deviation in Finish Immediately prior to placing of surfacing, the base shall be checked and any deviation in excess of three eights (3/8 ) inch from the established grade or true cross section shall be corrected as provided above for defects. Longitudinally a straightedge 10 feet long shall be used to detect any deviation which shall be corrected as defects. V-38 C. 7 4. HOT MIX ASPHALTIC CONCRETE SURFACE r A. Description This item shall consist of 1-1/2" compacted T.H.D. Type "C" 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. (1) General (Test Method Tex-207-F) It is the intent of. this specification that the material be placed and compacted to a density of 95 to I 100 percent of that density developed in the laboratory test method of molding stability specimens with a �• minimum compacted thickness of one and one half inches (1-1/211). Sufficient density tests will be made in order to determine that the compaction procedure used by the Contractor is adequate and proper to accomplish r the intent as stated above. If the mixture produced does not have the specified qualities, it shall be changed until it does. The pavement shall be constructed on the previously completed and approved subgrade, base, existing pavement, bituminous surface or in the case of a bridge, on the prepared floor slab, as herein specified and in accordance with the details shown on the plans. B. Temperature Requirements (The temperature readings to be used will be as reported by the National Weather Service on an hourly report (telephone number - 762-0141.]) (1) HMAC - November 1 until April 1 a. The asphaltic mixture shall not be placed when the air temperature is below 550 degrees F and falling. b. The asphaltic mixture may be placed when the air temperature is above 500 degrees F and rising. (2) HMAC - April 1 until November 1 a. The asphaltic mixture shall not be placed when the air temperature is below 500 degrees F and falling. b. The asphaltic mixture may be placed when the air temperature is above 450 degrees F and rising. V-39 (3) Asphalt Stabilized Base a.The asphaltic mixture shall not be placed when the air temperature is below 450F and falling. b.The asphaltic mixture may be placed when the air temperature is above 40OF 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. If the temperature of a load of asphaltic concrete measured while passing through the lay -down machine is 250F less than the mixing temperature, the load may be rejected by the Engineer and payment will not be made for the rejected material. C._Preparation of Base and Areas Bordering 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. D. Prime Coat The prime coat shall consist of an application of .25 gallons per square yard of MC asphalt. E. 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. F. Transporting Asphaltic Concrete The asphaltic mixture, prepared as specified above shall be hauled to the work site in tight vehicles previously V-40 C i 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 a 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. G. Placing I 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 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. PO When the asphaltic mixture is placed in a narrow strip S 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 not r practical, the finishing machine may be eliminated when authorized by the Engineer, provided a satisfactory surface can be obtained by other approved methods. r Adjacent to flush curbs, gutters, liners and structures, the surface shall be finished uniformly high so that when compacted it will be slightly above the edge of the curb w and flush structure. All 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 r between old and new sections of the course. V-41 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 contact surfaces of previously constructed pavement shall be painted with a thin uniform coat of hot bituminous material before the fresh mixture is placed. H. Compacting As directed by the Engineer, the pavement shall be compacted thoroughly and uniformly to the required 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 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 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 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 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 V-42 i G 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. I. Surface Tests 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. J. Surface Density Test See Section IV, Item 10-D. Laboratory Control. K. 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 rr surface test, when required, and shall have adequate power j 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 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 r surface test. 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. r Vehicles dumping into the finishing machine shall be d mechanically and/or automatically operated in such a manner F V-43 that overloading the finishing machine being used 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 besodesigned 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. 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 of the tires while operating. All tires of the same roller shall be smooth tread of equal size and diameterandshall 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. V-4"4 r• P Three Wheel Roller. This roller shall be an acceptable power driven three wheel roller weighing not less than 10 r 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 r straightedges for surface testing. Satisfactory templates t shall be provided as required by the Engineer. k: 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. L. Opening to Traffic The pavement shall be opened to traffic when directed by r' the Engineer. All construction traffic allowed on the pavement shall comply with City Ordinance governing traffic on City Streets. If the surface ravels,corrugates or shoves, it will be the contractor's responsibility to correct this condition 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 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 the various items of work involved, and no direct compensation V-45 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. 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 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. B. Installation. Adjustments, and Protection of Utilities and Traffic Installations 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. 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 V-46 767-2595 767-2554 767-2140, 767-2144 E; Energas Traffic Shop Southwestern Public Service Southwestern Bell Telephone Cox Cable of Lubbock City Traffic Engineering 741-4200 763-2881 741-6101 793-2222 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. I 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. 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. V-47 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 Sequence Sewer First Electric (Primary) Second Electric (Secondary) Third Telephone Fourth (last if no power or T.V.) T.V. Cable Fifth Water Sixth Gas Seventh Traffic Engineering Eighth .On all projects, including private contracts, the Contractor 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. 7.SALVAGING AND REPLACING BASE A. Description "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 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. B. Construction Methods ►iz X.tI r L 4 (1) Salvaging Existing Base The existing base, including any bituminous mat not G 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 l 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 not to r.. interfere with traffic, proper drainage or the general I progress of the work. (2) Preparation of Subgrade Preparation of subgrade shall be in accordance with Section V, Item 2 Earth Work of these specifications. (3) Replacement of Salvage Material The salvage material shall be in accordance with Section V, Item 2 Earth Work of these specifications. 8. Salvaging and Stockpiling Base Material A. Description 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. B. Construction Methods Trash, wood, brush, stumps and other objectionable material at the storage site shall be removed and disposed of as V-49 7 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 windows 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. 9. SEALING AND TWO -COURSE SURFACE TREATMENT A. PREPARATION OF SURFACE Before the sealing operation is started the Contractor will be required to patch all areas that have failed or raveled as marked by the Engineer. The City of Lubbock Street Department will sweep the streets before the sealing and two -course operation is started. Asphalt shall not be applied when general weather conditions, in the opinion of the Engineer, are not suitable. B.'HANDLING AND APPLYING ASPHALT All storage tanks, piping, retorts, booster tanks and distributors used in storing or handling asphalt shall be kept clean and in good operating condition at all times, and they shall be operated in a manner that there will be no contamination of the asphalt with foreign material. Asphalt is not to be heated above 4000 F at any time, and when applied, it shall be at a temperature which will insure a Furol Viscosity of between 50 and 60 at the time of application. The Engineer will select the temperature of application, and the Contractor shall apply the asphalt at a temperature within 15 degrees of the temperature selected. All asphalt material heated above 4000 F will be rejected. Recirculating tank car heating equipment shall be equipped with an approved type recording thermometer. Asphalt shall be applied to the clean surface by an approved type of self propelled hydro -statically controlled pressure distributor so operated as to distribute the material in the quantity specified, evenly and smoothly, V-50 under pressure necessary for proper distribution. The Contractor shall provide all of the heating equipment and in the distributor, for determining the rate at which it is t. applied, and for securing uniformity at the junction of the distributor loads. The beginning and ending of each shot of r, asphalt shall start and stop ona strip of heavy kraft paper of not less than thirty inches in width. Asphalt for pre -coated seal coat and two -course application shall not be applied unless covering with aggregate is, assured within ten (10) minutes. No asphalt shall be applied when wind velocity is 25 M.P.H. or more. Asphalt shall not be applied if the ambient temperature is below 650F. Any block or blocks that receives a seal coat or two -course asphalt application that exceeds the rate set by the Engineer by .04 or more will not be accepted until the bleeding is stopped. The Contractor will be required at his expense to furnish extra rock and equipment necessary to control this bleeding. After the bleeding is stopped, the City will then assume the maintenance of the block or blocks that were shot heavy. r• Application of asphalt on street returns shall be accomplished by the distributor bars unless otherwise directed by the Engineer. In areas regarded by the Engineer as inaccessible to the distributor, use of the hand hose will be permitted, as directed by the Engineer. Care shall be taken during application of any asphalt to shield the curb and gutter from asphalt spray. Manholes and valve boxes will be covered before each application of asphalt and immediately uncovered after the application of aggregate and before rolling operations. Successive �., applications of asphalt shall be made in the same manner after application aggregate. C. RATE OF APPLICATION OF MATERIALS S.H.D. Gals Spread Grade No. of AsphaltJS.Y. Ratio I. Seal Coat (Pre -coated crushed stone or pre -coated gravel) #4 0.28 1:100 2. Two -Course P.B. Pre -coated crushed stone or pre -coated gravel. (a) Thoroughfares #2 Special 0.30 1:64 VzPW #4 0.38 1:94 (b) Collectors 12 Special 0.30 1:64 #4 0.38 1:94 D.-HANDLING AND APPLYING AGGREGATES Immediately after making the first application of asphalt over the full width of the street, the surface shall be '- covered with aggregate, spread with an approved type self- propelled aggregate spreader on which the rate of application of rock and the speed of travel may -- controlled by the operator. Applications shall be at the rates herein specified or at rates as directed by the Engineer. After the aggregate has been spread, it shall be bladed with an approved blade grader and broomed with a heavy drag broom. If necessary to obtain a uniform distribution of aggregate or to fill low areas, hand spotting and hand brooming of the aggregate shall be required. Care shall be taken in dip sections to maintain an accurate flow line. Considerable hand work may be required at intersections and at joints in order to maintain a uniform distribution of the aggregate, to prevent the incorporation of foreign materials such as caliche and dirt, and to construct smooth joints. In any event, care shall be taken to avoid pulling the drag broom over dirt or caliche surfaces or over wasted aggregate at the edges of the area being surfaced. After the first and second application'of aggregate on the two -course, it will be thoroughly rolled with pneumatic rollers, bladed, dragged and all thin spots spotted with extra aggregate, then bullwheeled with an approved three - wheeled roller weighing not less than ten (10) tons. Aggregate on seal coat will be dragged with a drag broom and all thin spots covered with extra aggregate and thoroughly rolled with pneumatic rollers. In all cases, rolling shall be continued until the surface presents a smooth appearance. Gutter edges shall be cleansed of aggregate before such application of asphalt and this aggregate will not be "ridged" along the gutter edge but if placed back on the surface area shall be well scattered. There should be a slight excess of aggregate on the surface after completion of the work specified above. V-52 s 7 Care shall be taken in loading aggregate from the rstockpiles to prevent getting dirt and other foreign matter into aggregates. Loads of aggregate containing dirt will be e reiected. E. HANDLING ASPHALT AND AGGREGATE FOR NIGHT WORK Application of asphalt and aggregate at night shall be applied by the same methods as for daylight application except that all equipment that is to be used on the street after shall have sufficient lights in compliance with State vehicle code. Additional lights will be required on the back end of the asphalt distributor, the aggregate spreader and at the aggregate stock pile area. (No night work will he authorized unless approved by the Engineer.) F. REQUIRED ROLLING (1 HOUR PER 1000 S.Y. OF SURFACE SEALED) The completed asphalt surface shall be broomed and rolled with pneumatic rollers immediately after the asphalt is covered with aggregate. The entire surface that is sealed will receive on hour rolling for each 1000 S.Y. the same day that the asphalt is applied no back rolling will be permitted (unless a rain storm occurs during the day then that surface may be rolled the next day). At least three pneumatic rollers will roll directly behind the aggregate spreader and drag broom, each roller making several complete passes across the entire width of the street, additional pneumatic rollers will follow approximately one block behind the first three rollers of which each additional roller will make several complete passes across the entire width of the street until one hour of rolling has been obtained for each 1000 S.Y. before moving on to the next block. The City will assume maintenance on these streets the following day after the rolling has been completed. G. PATCHING AHEAD OF SEAL OR TWO -COURSE MAINTENANCE The black base and cement stabilized caliche material to be used in patching ahead of the seal coat or two -course maintenance shall be used at locations as directed by the Engineer. No substitutions shall be permitted without prior approval from the Engineer. The areas to be patched shall be only as marked and measured by the Owner's Representative. The area to be patched shall be barricaded at all times during patching operations. However, if the Owner's Representative permits the patched area to be opened to traffic prior to placing the final hot -mix V-53 surface, the Contractor shall taper the edges of the patch with mix to minimize any bumps or inconvenience to traffic. (1) PATCHING WITH BLACK BASE Patching shall include removing the existing surfacing, either three (3), six (6), or nine (9) inches of the existing base and subgrade (as the Engineer directs), and, if the sub -grade is unstable, it will be removed and replaced with black base. The excavated base will then be replaced with asphalt stabilized base material (either three (3), six (6), or nine (9) inches), as directed by the Engineer, and compacted to 95% of design density. The surface course, 1 1/2" of Type "C" hot mix, shall then be placed and rolled until the required density is obtained. The edges of the patch shall be vertical and shall be tacked before placing the black base and the 1-1/2 inches of type "C" hot -mix. All hot -mix edges will meet the grade of the existing surface. (2) PATCHING WITH 6" OF THREE SACK CEMENT STABILIZED CALICHE -- Same as above except six (6) inches of three (3) sack -cement stabilized caliche will be used in lieu of six (6) inches of black base. At all times the patching area will be barricaded, if open to traffic before the Type "C" mix is placed, the - edges of the patch will be leveled up with mix to eliminate the bumps. NOTE: Both black base and cement stabililzed caliche are anticipated being used, with locations of each type of material to be directed.by the Engineer. (3) PATCHING WITH 1-11211 OF TYPE "C" HOT -MIX Same as above (patching with black 'base) except only the existing asphalt surface will be removed. H. CLEANUP Immediately after each application of asphalt, the Contractor shall clean, remove paper, piles of asphalt from manholes and water valves, extra aggregate that is in the gutter, rubbish and temporary structures from the street, V-54 restore in an acceptable manner all property, both public and private, which has been damaged 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 part of the cost of the various items of work involved, and no direct compensation will be made for this work. This work shall be done before final acceptance. V-55 u F SITE WORK MEASUREMENT AND PAYMENT 7 r SITE WORK MEASUREMENT AND PAYMENT FGENERAL The unit price bid on each item, as stated in the proposals, shall include furnishing all labor, superintendence, machinery, equipment and materials, except materials specifically specified to be furnished by the Owner, necessary or incidental to complete the various items of work in accordance with the plans and specifications. Cost of work or materials shown on the plans 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 items. 1 2 AND 3 ASPHALT APPLIED FOR SEALING AND TWO -COURSE PURPOSES Payment for this unit price bid shall be paid for actual gallons used in the City's Maintenance Program. This unit i price shall be full compensation for furnishing, sweeping and applying asphalt as described in Section IV and all manipulations, labor, tools equipment and incidentals to complete the work herein specified. 4 and 5 AGGREGATE FOR SEAL COAT AND TWO -COURSE (P.B. GRADE #2 SPECIAL AND #4 PRE -COATED CRUSHED STONE OR CRUSHED GRAVEL). Payment of this unit price bid shall be made for actual r. cubic yardage used in the process of sealing and two - course. All pre -coated gravel or pre -coated crushed stone shall have a maximum of fifteen percent (15%) loss when tested by the (4) four cycle Magnesium Sulfate Soundness Test (A.S.T.M. C-88). Precoated crushed gravel shall have a minimum of 90 percent of the particles retained on the No. 4 sieve with more than one crushed face, as determined r^ by Test Method Tex. 413-A. The percent of flat or elongated slivers of stone or gravel, for any course, shall not exceed 25%, when tested in accordance with Test Method Tex 224-F. Final acceptance of the aggregate shall i be made only after the material is in stockpile in the i City of Lubbock. This payment being full compensation for furnishing and placing all materials including spreading, brooming and rolling with pneumatic roller and all necessary clean-up labor, tools, equipment and incidentals necessary for the completion of work as herein specified. 6. PATCHING WITH 3 INCHES OF BLACK BASE Measurements shall be made of the actual area patched, and shall be paid for at the unit price bid per square yard of 7 patching. This unit price shall be full compensation for removal of asphalt, caliche base and any subgrade that is soft or unstable and including tack coat, 3" of black base and 1-1/2" of type "C" Hot -Mix including removal, haul and disposal of materials excavated, hauling, rolling, tamping and placing 1-1/2" of Hot -Mix surface and all manipulations, labor, tools, equipment, traffic provisions, barricades, flagmen and other incidentals necessary to complete the work as herein specified. 7. PATCHING WITH 6 INCHES OF BLACK BASE Measurements shall be made of the actual area patched, and shall be paid for at the unit price bid per square yard of patching. This unit price shall be full compensation for removal of asphalt, caliche base and any subgrade that is soft or unstable and including tack coat, 6" of black base and 1-1/2" of type "C" Hot -Mix including removal, haul and disposal.of materials excavated, hauling, rolling, tamping and placing 1-1/2" of Hot -Mix surface and all manipulations, labor, tools, equipment, traffic provisions, barricades, flagmen and other incidentals necessary to complete the work as herein specified. 8. PATCHING WITH 9 INCHES OF BLACK BASE Measurements shall be made of the actual area patched, and shall be paid for at the unit price bid per square yard of patching. This unit price shall be full compensation for removal of asphalt, caliche base and any subgrade that is soft or unstable and including tack coat, 9" of black base and 1 1/2" of Type "C" of Hot Mix surface and all manipulations, labor, tools, equipment, traffic provisions, barricades,flagmen and other incidentals necessary to complete the work as herein specified. 9. PATCHING WITH 6 INCHES OF 3 SACK CEMENT STABILIZED CALICHE Measurement shall be made of the actual area patched, and shall be paid for at the unit price bid per cubic yard of three sack cement stabilized caliche. This unit price shall be full compensation for removal of asphalt, caliche base and any sub -grade that is soft or unstable and including tack coat, six (611) inches three (3) sack cement stabilized caliche and 1-1/2" of Type IIC" Hot -Mix, - including removal, haul disposal of materials excavated, ,hauling, placing, rolling, tamping and placing 1-1/2" of hot -mix surface and all manipulations, labor, tools, equipment, traffic provisions, barricades, flagmen and 2 F F r other incidentals necessary to complete the work as herein specified. 10. PATCHING WITH 1-112 INCHES OF HOT -MIX Measurement shall be made of the actual area and shall be paid for at the unit price bid per square yard. This unit price shall be full compensation for removal and disposal of the existing surfaces (asphalt), all sawing, brooming, blading, wetting, and rolling, loading, hauling and wasting all excess excavated material, removing and disposing of all obstructions noted on the plans or as become necessary, prime coat and tack coat, and for the furnishing and placing one and one-half inches (1-1/211) of Type "C" hot -mix, including freight, preparing, hauling and placing all materials, and all manipulations, labor, tools, equipment, and incidentals necessary to complete the work as herein specified. 11. CURB AND GUTTER Measurements shall be made of the actual linear feet removed and replaced, and shall be paid for at the unit price per linear foot. This unit price shall be full compensation for removal and disposal of the existing curb and gutter, for preparation of the subgrade, and for construction of the new 30" curb and gutter; including all manipulations, labor, tools, equipment, hauling, placing all materials, expansion joint material, curing compound, concrete additives, and incidentals necessary to complete the work as herein specified. 12. VALLEY GUTTER - Measurements shall be made of the actual area removed and replaced, and shall be paid for at the unit price per square yard. This unit price shall be full compensation for removal and disposal of existing materials, preparation of the subgrade, and for construction of the new reinforced 8" valley gutter; including all manipulations, labor, tools, equipment, hauling, placing all materials, joint material, curing compound, concrete additives, reinforcing materials, and incidentals necessary to complete the work as herein specified. 13. 4" CONCRETE SIDEWALK AND DRIVEWAY ADJUSTMENT Measurements shall be made of the actual area removed and replaced, and shall be paid for at the unit price per square yard. This unit price shall be full compensation for the removal and disposal of existing materials, 3 preparation of the subgrade; and for construction of the new sidewalk/driveway; including all manipulations, labor, tools, equipment, hauling, placing all materials, joint material, curing compound, concrete additives, reinforcing materials, and incidentals necessary to complete the work as herein specified. 4