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2. Final Acceptance. After Contractor has, in the opinion of the Engineer, satisfactorily completed all corrections identified during the final inspection and has delivered, in accordance with the Contract Documents, all maintenance and operating instructions, schedules, guarantees, bonds, certificates or other evidence of insurance, certificates of inspection, marked-up record documents (as-builts), and other documents required by the Contract Documents, the City shall execute and file with the County in which the Project is located a Notice of Completion, constituting final acceptance and completion of the Project, except as may be expressly noted.
3. Final Payment.
a. Application for Payment. Upon execution of the Notice of Completion, Contractor may make application for final payment following the procedure for progress payments. The final application for payment shall be accompanied (except as previously delivered) by: all documentation called for in the Contract Documents, including but not limited to a fully completed Conditional Waiver and Release on Final Payment
b. City’s Review of Application and Acceptance. If, on the basis of the City’s observation of the Work during construction and final inspection, and review of the final Application for Payment and accompanying documentation as required by the Contract Documents, the City is satisfied that the Work has been completed and Contractor has satisfied all other requirements for final payment, the City will process the final payment appllication. Otherwise, the City will return the payment application to Contractor, indicating in writing the reasons for refusing to recommend final payment, in which case Contractor shall make the necessary corrections and resubmit the application for payment.
c. Payment Becomes Due. Within sixty (60) Days after the presentation to the City of the proper and complete final application for payment and accompanying documentation, the amount recommended by the Engineer, less any sum the City is entitled to set off pursuant to the Contract Documents, will become due and will be paid by the City to Contractor.
4. Waiver of Claims. The making and acceptance of final payment will constitute a waiver of all Claims by Contractor against the City other than those previously made in accordance with the requirements herein and expressly acknowledged by the City in writing as still unsettled.
ARTICLE 44 OCCUPANCY
The City reserves the right to occupy or utilize any portion of the Work at any time before completion, and such occupancy or use shall not constitute acceptance of any part of Work covered by this Contract.This use shall not relieve the Contractor of its responsibilities under the Contract.
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ARTICLE 45 INDEMNIFICATION
To the fullest extent permitted by law, Contractor shall immediately defend (with counsel of the City’s choosing), indemnify and hold harmless the City, officials, officers, agents, employees, and representatives, and each of them from and against:
1. Any and all claims, demands, causes of action, costs, expenses, injuries, losses or liabilities, in law or in equity, of every kind or nature whatsoever, but not limited to, injury to or death, including wrongful death, of any person, and damages to or destruction of property of any person, arising out of, related to, or in any manner directly or indirectly connected with the Work or this Contract, including claims made by subcontractors for nonpayment, including without limitation the payment of all consequential damages and attorney’s fees and other related costs and expenses, however caused, regardless of whether the allegations are false, fraudulent, or groundless, and regardless of any negligence of the City or its officers, employees, or authorized volunteers (including passive negligence), except the sole negligence or willful misconduct or active negligence of the City or its officials, officers, employees, or authorized volunteers.
2. Contractor’s defense and indemnity obligation herein includes, but is not limited to damages, fines, penalties, attorney’s fees and costs arising from claims under the Americans with Disabilities Act (ADA) or other federal or state disability access or discrimination laws arising from Contractor’s Work during the course of construction of the improvements or after the Work is complete, as the result of defects or negligence in Contractor’s construction of the improvements.
3. Any and all actions, proceedings, damages, costs, expenses, fines, penalties or liabilities, in law or equity, of every kind or nature whatsoever, arising out of, resulting from, or on account of the violation of any governmental law or regulation, compliance with which is the responsibility of Contractor;
4. Any and all losses, expenses, damages (including damages to the Work itself), attorney’s fees, and other costs, including all costs of defense which any of them may incur with respect to the failure, neglect, or refusal of Contractor to faithfully perform the Work and all of Contractor’s obligations under the agreement. Such costs, expenses, and damages shall include all costs, including attorney’s fees, incurred by the indemnified parties in any lawsuit to which they are a party.
Contractor shall immediately defend, at Contractor’s own cost, expense and risk, with the City Council’s choosing, any and all such aforesaid suits, actions or other legal proceedings of every kind that may be brought or instituted against the City, its officials, officers, agents, employees and representatives. Contractor shall pay and satisfy any judgment, award or decree that may be rendered against the City, its officials, officers, employees, agents, employees and representatives, in any such suit, action or other legal proceeding. Contractor shall reimburse the City, its officials, officers, agents, employees and representatives for any and all legal expenses and costs incurred by each of them in connection therewith or in enforcing the indemnity herein provided. The only limitations on this provision shall be those imposed by Civil Code section 2782.
ARTICLE 46 PROCEDURE FOR RESOLVING DISPUTES
Contractor shall timely comply with all notices and requests for changes to the Contract Time or Contract Price, including but not limited to all requirements of Article 42, Changes and Extra Work, as a prerequisite to filing any claim governed by this Article. The failure to timely submit a notice
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of delay or notice of change, or to timely request a change to the Contract Price or Contract Time, or to timely provide any other notice or request required herein shall constitute a waiver of the right to further pursue the claim under the Contract or at law.
1. Intent. Effective January 1, 1991, Section 20104 et seq., of the California Public Contract Code prescribes a process utilizing informal conferences, non-binding judicial supervised mediation, and judicial arbitration to resolve disputes on construction claims of $375,000 or less. Effective January 1, 2017, Section 9204 of the Public Contract Code prescribes a process for negotiation and mediation to resolve disputes on construction claims. The intent of this Article is to implement Sections 20104 et seq. and Section 9204 of the California Public Contract Code. This Article shall be construed to be consistent with said statutes.
2. Claims. For purposes of this Article, “Claim” means a separate demand by the Contractor, after a change order duly requested in accordance with Article 42 “Changes and Extra Work” has been denied by the City, for (A) a time extension, (B) payment of money or damages arising from Work done by or on behalf of the Contractor pursuant to the Contract, or (C) an amount the payment of which is disputed by the City. Claims governed by this Article may not be filed unless and until the Contractor completes all procedures for giving notice of delay or change and for the requesting of a time extension or change order, including but not necessarily limited to the procedures contained in Article 42, Changes and Extra Work, and Contractor’s request for a change has been denied in whole or in part. Claims governed by this Article must be filed no later than the date of final payment. The claim shall be submitted in writing to the City and shall include on its first page the following in 16 point capital font: “THIS IS A CLAIM.” Furthermore, the claim shall include the documents necessary to substantiate the claim. Nothing herein is intended to extend the time limit or supersede notice requirements otherwise provided by contract for the filing of claims, including all requirements pertaining to compensation or payment for extra Work, disputed Work, and/or changed conditions. Failure to follow such contractual requirements shall bar any claims or subsequent lawsuits for compensation or payment thereon.
3. Supporting Documentation. The Contractor shall submit all claims in the following format:
a. Summary of claim merit and price, reference Contract Document provisions pursuant to which the claim is made
b. List of documents relating to claim:
Specifications
Drawings
Clarifications (Requests for Information)
Schedules
Other
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c. Chronology of events and correspondence
d. Analysis of claim merit
e. Analysis of claim cost
f. Time Impact Analysis in CPM format
4. City’s Response. Upon receipt of a claim pursuant to this Article, City shall conduct a reasonable review of the claim and, within a period not to exceed 45 Days, shall provide the Contractor a written statement identifying what portion of the claim is disputed and what portion is undisputed. Any payment due on an undisputed portion of the claim will be processed and made within 60 Days after the City issues its written statement. a. If the City needs approval from its governing body to provide the Contractor a written statement identifying the disputed portion and the undisputed portion of the claim, and the City’s governing body does not meet within the 45 Days or within the mutually agreed to extension of time following receipt of a claim sent by registered mail or certified mail, return receipt requested, the City shall have up to three Days following the next duly publicly noticed meeting of the City’s governing body after the 45-Day period, or extension, expires to provide the Contractor a written statement identifying the disputed portion and the undisputed portion.
b. Within 30 Days of receipt of a claim, the City may request in writing additional documentation supporting the claim or relating to defenses or claims the City may have against the Contractor. If additional information is thereafter required, it shall be requested and provided pursuant to this subdivision, upon mutual agreement of City and the Contractor. The City’s written response to the claim, as further documented, shall be submitted to the Contractor within 30 Days (if the claim is less than $15,000, within 15 Days) after receipt of the further documentation, or within a period of time no greater than that taken by the Contractor in producing the additional information or requested documentation, whichever is greater.
5. Meet and Confer. If the Contractor disputes the City’s written response, or the City fails to respond within the time prescribed, the Contractor may so notify the City, in writing, either within 15 Days of receipt of the City’s response or within 15 Days of the City’s failure to respond within the time prescribed, respectively, and demand in writing an informal conference to meet and confer for settlement of the issues in dispute. Upon receipt of a demand, the City shall schedule a meet and confer conference within 30 Days for settlement of the dispute.
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6. Mediation. Within 10 business Days following the conclusion of the meet and confer conference, if the claim or any portion of the claim remains in dispute, the City shall provide the Contractor a written statement identifying the portion of the claim that remains in dispute and the portion that is undisputed. Any payment due on an undisputed portion of the claim shall be processed and made within 60 Days after the City issues its written statement. Any disputed portion of the claim, as identified by the Contractor in writing, shall be submitted to nonbinding mediation, with the City and the Contractor sharing the associated costs equally. The City and Contractor shall mutually agree to a mediator within 10 business Days after the disputed portion of the claim has been identified in writing, unless the parties agree to select a mediator at a later time. a. If the parties cannot agree upon a mediator, each party shall select a mediator and those mediators shall select a qualified neutral third party to mediate with regard to the disputed portion of the claim. Each party shall bear the fees and costs charged by its respective mediator in connection with the selection of the neutral mediator.
b. For purposes of this section, mediation includes any nonbinding process, including, but not limited to, neutral evaluation or a dispute review board, in which an independent third party or board assists the parties in dispute resolution through negotiation or by issuance of an evaluation. Any mediation utilized shall conform to the timeframes in this section. c. Unless otherwise agreed to by the City and the Contractor in writing, the mediation conducted pursuant to this section shall excuse any further obligation under Public Contract Code Section 20104.4 to mediate after litigation has been commenced.
d. The mediation shall be held no earlier than the date the Contractor completes the Work or the date that the Contractor last performs Work, whichever is earlier. All unresolved claims shall be considered jointly in a single mediation, unless a new unrelated claim arises after mediation is completed.
7. Procedures After Mediation. If following the mediation, the claim or any portion remains in dispute, the Contractor must file a claim pursuant to Chapter 1 (commencing with Section 900) and Chapter 2 (commencing with Section 910) of Part 3 of Division 3.6 of Title 1 of the Government Code prior to initiating litigation. For purposes of those provisions, the running of the period of time within which a claim must be filed shall be tolled from the time the Contractor submits his or her written claim pursuant to subdivision (a) until the time the claim is denied, including any period of time utilized by the meet and confer conference.
8. Civil Actions. The following procedures are established for all civil actions filed to resolve claims of $375,000 or less:
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a. Within 60 Days, but no earlier than 30 Days, following the filing or responsive pleadings, the court shall submit the matter to non-binding mediation unless waived by mutual stipulation of both parties or unless mediation was held prior to commencement of the action in accordance with Public Contract Code section 9204 and the terms of this Contract. The mediation process shall provide for the selection within 15 Days by both parties of a disinterested third person as mediator, shall be commenced within 30 Days of the submittal, and shall be concluded within 15 Days from the commencement of the mediation unless a time requirement is extended upon a good cause showing to the court.
b. If the matter remains in dispute, the case shall be submitted to judicial arbitration pursuant to Chapter 2.5 (commencing with Section 1141.10) of Title 3 of Part 3 of the Code of Civil Procedure, notwithstanding Section 1114.11 of that code. The Civil Discovery Act of 1986 (Article 3 (commencing with Section 2016) of Chapter 3 of Title 3 of Part 4 of the Code of Civil Procedure) shall apply to any proceeding brought under this subdivision consistent with the rules pertaining to judicial arbitration. In addition to Chapter 2.5 (commencing with Section 1141.10) of Title 3 of Part 3 of the Code of Civil Procedure, (A) arbitrators shall, when possible, be experienced in construction law, and (B) any party appealing an arbitration award who does not obtain a more favorable judgment shall, in addition to payment of costs and fees under that chapter, also pay the attorney’s fees on appeal of the other party.
9. Government Code Claims. In addition to any and all contract requirements pertaining to notices of and requests for compensation or payment for extra Work, disputed Work, construction claims and/or changed conditions, the Contractor must comply with the claim procedures set forth in Government Code Sections 900, et seq. prior to filing any lawsuit against the City. Such Government Code claims and any subsequent lawsuit based upon the Government Code claims shall be limited to those matters that remain unresolved after all procedures pertaining to extra Work, disputed Work, construction claims, and/or changed conditions have been followed by Contractor. If no such Government Code claim is submitted, or if the prerequisite contractual requirements are not satisfied, no action against the City may be filed. A Government Code claim must be filed no earlier than the date the Work is completed or the date the Contractor last performs Work on the Project, whichever occurs first. A Government Code claim shall be inclusive of all unresolved claims unless a new unrelated claim arises after the Government Code claim is submitted.
10. Non-Waiver. The City’s failure to respond to a claim from the Contractor within the time periods described in this Article or to otherwise meet the time requirements of this Article shall result in the claim being deemed rejected in its entirety.
ARTICLE 47 CITY’S RIGHT TO TERMINATE CONTRACT
1. Termination for Cause by the City:
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a. In the sole estimation of the City, if the Contractor refuses or fails to prosecute the Work or any separable part thereof with such diligence as will insure its completion within the time specified by the Contract Documents, or any extension thereof, or fails to complete such Work within such time, or if the Contractor should be adjudged a bankrupt, or if it should make a general assignment for the benefit of its creditors, or if a receiver should be appointed on account of its insolvency, or the Contractor or any of its subcontractors should violate any of the provisions of this Contract, the City may serve written notice upon the Contractor and its Surety of the City's intention to terminate this Contract. This notice of intent to terminate shall contain the reasons for such intention to terminate this Contract, and a statement to the effect that the Contractor's right to perform this Contract shall cease and terminate upon the expiration of ten (10) calendar days unless such violations have ceased and arrangements satisfactory to the City have been made for correction of said violations.
b. In the event that the City serves such written notice of termination upon the Contractor and the Surety, the Surety shall have the right to take over and perform the Contract. If the Surety does not: (1) give the City written notice of Surety's intention to take over and commence performance of the Contract within 15 calendar days of the City's service of said notice of intent to terminate upon Surety; and (2) actually commence performance of the Contract within 30 calendar days of the City's service of said notice upon Surety; then the City may take over the Work and prosecute the same to completion by separate contract or by any other method it may deem advisable for the account and at the expense of the Contractor. c. In the event that the City elects to obtain an alternative performance of the Contract as specified above: (1) the City may, without liability for so doing, take possession of and utilize in completion of the Work such materials, appliances, plants and other property belonging to the Contractor that are on the site and reasonably necessary for such completion (A special lien to secure the claims of the City in the event of such suspension is hereby created against any property of Contractor taken into the possession of the City under the terms hereof and such lien may be enforced by sale of such property under the direction of the City Council without notice to Contractor.
The proceeds of the sale after deducting all expenses thereof and connected therewith shall be credited to Contractor. If the net credits shall be in excess of the claims of the City against Contractor, the balance will be paid to Contractor or Contractor’s legal representatives.); and (2) Surety shall be liable to the City for any cost or other damage to the City necessitated by the City securing an alternate performance pursuant to this Article.
2. Termination for Convenience by the City:
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a. The City may terminate performance of the Work called for by the Contract Documents in whole or, from time to time, in part, if the City determines that a termination is in the City's interest.
b. The Contractor shall terminate all or any part of the Work upon delivery to the Contractor of a Notice of Termination specifying that the termination is for the convenience of the City, the extent of termination, and the Effective Date of such termination.
c. After receipt of Notice of Termination, and except as directed by the City's Representative, the Contractor shall, regardless of any delay in determining or adjusting any amounts due under this Termination for Convenience clause, immediately proceed with the following obligations:
a) Stop Work as specified in the Notice.
b) Complete any Work specified in the Notice of Termination in a least cost/shortest time manner while still maintaining the quality called for under the Contract Documents.
c) Leave the property upon which the Contractor was working and upon which the facility (or facilities) forming the basis of the Contract Document is situated in a safe and sanitary manner such that it does not pose any threat to the public health or safety.
d) Terminate all subcontracts to the extent that they relate to the portions of the Work terminated.
e) Place no further subcontracts or orders, except as necessary to complete the continued portion of the Contract.
f) Submit to the City's Representative, within ten (10) calendar days from the Effective Date of the Notice of Termination, all of the usual documentation called for by the Contract Documents to substantiate all costs incurred by the Contractor for labor, materials and equipment through the Effective Date of the Notice of Termination. Any documentation substantiating costs incurred by the Contractor solely as a result of the City's exercise of its right to terminate this Contract pursuant to this clause, which costs the contractor is authorized under the Contract documents to incur, shall: (1) be submitted to and received by the Engineer no later than 30 calendar days after the Effective Date of the Notice of Termination; (2) describe the costs incurred with particularity; and (3) be conspicuously identified as “Termination Costs occasioned by the City's Termination for Convenience.”
3. Termination of the Contract shall not relieve Surety of its obligation for any just claims arising out of or relating to the Work performed.
4. In the event that the City exercises its right to terminate this Contract pursuant to this clause, the City shall pay the Contractor, upon the Contractor's submission of the documentation required by this clause and other applicable provisions of the Contract Documents, the following amounts:
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a. All actual reimbursable costs incurred according to the provisions of this Contract.
b. A reasonable allowance for profit on the cost of the Work performed, provided Contractor establishes to the satisfaction of the City's Representative that it is reasonably probable that Contractor would have made a profit had the Contract been completed and provided further, that the profit allowed shall in no event exceed fifteen (15%) percent of the costs. c. A reasonable allowance for Contractor's administrative costs in determining the amount payable due to termination of the Contract under this Article.
5. Notwithstanding any other provision of this Article, when immediate action is necessary to protect life and safety or to reduce significant exposure or liability, the City may immediately order Contractor to cease Work on the Project until such safety or liability issues are addressed to the satisfaction of the City or the Contract is terminated.
ARTICLE 48 WARRANTY AND GUARANTEE OF WORK
1. Contractor hereby warrants that materials and Work shall be completed in conformance with the Contract Documents and that the materials and Work provided will fulfill the requirements of this Warranty. Contractor hereby agrees to repair or replace, at the discretion of the City, any or all Work that may prove to be defective in its workmanship, materials furnished, methods of installation or fail to conform to the Contract Document requirements together with any other Work which may be damaged or displaced by such defect(s) within a period of one (1) year from the date of the Notice of Completion of the Project without any expense whatever to the City, ordinary wear and tear and unusual abuse and neglect excepted. Contractor shall be required to promptly repair or replace defective equipment or materials, at Contractor’s option. All costs associated with such corrective actions and testing, including the removal, replacement, and reinstitution of equipment and materials necessary to gain access, shall be the sole responsibility of the Contractor.
2. For any Work so corrected, Contractor’s obligation hereunder to correct defective Work shall be reinstated for an additional one (1) year period, commencing with the date of acceptance of such corrected Work. The reinstatement of the one (1) year warranty shall apply only to that portion of work that was corrected. Contractor shall perform such tests as City may require verifying that any corrective actions, including, without limitation, redesign, repairs, and replacements comply with the requirements of the Contract. In the event of Contractor’s failure to comply with the above-mentioned conditions within ten (10) calendar days after being notified in writing of required repairs, to the reasonable satisfaction of the City, the City shall have the right to correct and replace any defective or non-conforming Work and any work damaged by such work or the replacement or correction thereof at Contractor’s sole expense. Contractor shall be obligated to fully reimburse the City for any expenses incurred hereunder immediately upon demand.
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3. In addition to the warranty set forth in this Article, Contractor shall obtain for City all warranties that would be given in normal commercial practice and assign to City any and all manufacturer’s or installer’s warranties for equipment or materials not manufactured by Contractor and provided as part of the Work, to the extent that such third-party warranties are assignable and extend beyond the warranty period set forth in this Article.
Contractor shall furnish the City with all warranty and guarantee documents prior to final Acceptance of the Project by the City as required.
4. When specifically indicated in the Contract Documents or when directed by the Engineer, the City may furnish materials or products to the Contractor for installation. In the event any act or failure to act by Contractor shall cause a warranty applicable to any materials or products purchased by the City for installation by the Contractor to be voided or reduced, Contractor shall indemnify City from and against any cost, expense, or other liability arising therefrom, and shall be responsible to the City for the cost of any repairs, replacement or other costs that would have been covered by the warranty but for such act or failure to act by Contractor.
5. The Contractor shall remedy at its expense any damage to City-owned or controlled real or personal property.
6. The City shall notify the Contractor, in writing, within a reasonable time after the discovery of any failure, defect, or damage. The Contractor shall within ten (10) calendar days after being notified commence and perform with due diligence all necessary Work.
If the Contractor fails to promptly remedy any defect, or damage; the City shall have the right to replace, repair or otherwise remedy the defect, or damage at the Contractor’s expense.
7. In the event of any emergency constituting an immediate hazard to health, safety, property, or licensees, when caused by Work of the Contractor not in accordance with the Contract requirements, the City may undertake at Contractor’s expense, and without prior notice, all Work necessary to correct such condition.
8. Acceptance of Defective Work.
a. If, instead of requiring correction or removal and replacement of Defective Work, the City prefers to accept it, City may do so. Contractor shall pay all claims, costs, losses, and damages (including but not limited to all fees and charges of engineers, architects, attorneys, and other professionals and all court or arbitration or other dispute resolution costs) attributable to City’s evaluation of and determination to accept such Defective Work and for the diminished value of the Work.
b. If any acceptance of defective work occurs prior to release of the Project Retention, a Change Order will be issued incorporating the necessary revisions in the Contract Documents with respect to the Work, and City shall be entitled to an appropriate decrease in the Contract Price, reflecting the diminished value of Work and all costs incurred by City.
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c. If the Project Retention is held in an escrow account as permitted by the Contract Documents, Contractor will promptly alert the escrow holder, in writing, of the amount of Retention to be paid to City. d. If the acceptance of Defective Work occurs after release of the Project Retention, an appropriate amount will be paid by Contractor to City.
9. City May Correct Defective Work.
a. If Contractor fails within a reasonable time after written notice from City’s Representative to correct Defective Work, or to remove and replace rejected Work as required by City, or if Contractor fails to perform the Work in accordance with the Contract Documents, or if Contractor fails to comply with any other provision of the Contract Documents, City may, after seven (7) Days’ written notice to Contractor, correct, or remedy any such deficiency.
b. In connection with such corrective or remedial action, City may exclude Contractor from all or part of the Site, take possession of all or part of the Work and suspend Contractor’s services related thereto, take possession of Contractor’s tools, appliances, construction equipment and machinery at the Site, and incorporate in the Work all materials and equipment stored at the Site or for which City has paid Contractor but which are stored elsewhere.
Contractor shall allow City and City’s Representative, and the agents, employees, other contractors, and consultants of each of them, access to the Site to enable City to exercise the rights and remedies to correct the Defective Work.
c. All claims, costs, losses, and damages (including but not limited to all fees and charges of engineers, architects, attorneys, and other professionals and all court or arbitration or other dispute resolution costs) incurred or sustained by City correcting the Defective Work will be charged against Contractor, and a Change Order will be issued incorporating the necessary revisions into the Contract Documents with respect to the Work; and City shall be entitled to an appropriate decrease in the Contract Price. d. Such claims, costs, losses and damages will include, but not be limited to, all costs of repair, or replacement of work of others destroyed or damaged by correction, removal, or replacement of Defective Work. e. If the Change Order is executed after all payments under the Contract have been paid by City and the Project Retention is held in an escrow account as permitted by the Contract Documents, Contractor will promptly alert the escrow holder, in writing, of the amount of Retention to be paid to City. f. If the Change Order is executed after release of the Project Retention, an appropriate amount will be paid by Contractor to City.
g. Contractor shall not be allowed an extension of the Contract Times because of any delay in the performance of the Work attributable to City correcting Defective work.
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a) Nothing in the Warranty or in the Contract Documents shall be construed to limit the rights and remedies available to City at law or in equity, including, but not limited to, Code of Civil Procedure section 337.15.
ARTICLE 49 DOCUMENT RETENTION & EXAMINATION
1. In accordance with Government Code section 8546.7, records of both the City and the Contractor shall be subject to examination and audit by the State Auditor General for a period of three (3) years after final payment.
2. Contractor shall make available to the City any of the Contractor’s other documents related to the Project immediately upon request of the City.
3. In addition to the State Auditor rights above, the City shall have the right to examine and audit all books, estimates, records, contracts, documents, bid documents, subcontracts, and other data of the Contractor (including computations and projections) related to negotiating, pricing, or performing the modification in order to evaluate the accuracy and completeness of the cost or pricing data at no additional cost to the City, for a period of four (4) years after final payment.
ARTICLE 50 SEPARATE CONTRACTS
1. The City reserves the right to let other contracts in connection with this Work or on the Project site. Contractor shall permit other contractors reasonable access and storage of their materials and execution of their work and shall properly connect and coordinate its Work with theirs.
2. To ensure proper execution of its subsequent Work, Contractor shall immediately inspect work already in place and shall at once report to the Engineer any problems with the Work in place or discrepancies with the Contract Documents.
3. Contractor shall ascertain to its own satisfaction the scope of the Project and nature of any other contracts that have been or may be awarded by the City in prosecution of the Project to the end that Contractor may perform this Contract in the light of such other contracts, if any. Nothing herein contained shall be interpreted as granting to Contractor exclusive occupancy at site of the Project. Contractor shall not cause any unnecessary hindrance or delay to any other contractor working on the Project. If simultaneous execution of any contract for the Project is likely to cause interference with performance of some other contract or contracts, the Engineer shall decide which Contractor shall cease Work temporarily and which contractor shall continue or whether work can be coordinated so that contractors may proceed simultaneously. The City shall not be responsible for any damages suffered or for extra costs incurred by Contractor resulting directly or indirectly from award, performance, or attempted performance of any other contract or contracts on the Project site.
ARTICLE 51 NOTICE AND SERVICE THEREOF
All notices shall be in writing and either served by personal delivery or mailed to the other party as designated in the Bid Forms. Written notice to the Contractor shall be addressed to Contractor’s principal place of business unless Contractor designates another address in writing for service of notice. Notice to City shall be addressed to the City as designated in the Notice Inviting Bids unless City designates another address in writing for service of notice. Notice shall
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be effective upon receipt or five (5) calendar days after being sent by first class mail, whichever is earlier. Notice given by facsimile shall not be effective unless acknowledged in writing by the receiving party.
ARTICLE 52 NOTICE OF THIRD PARTY CLAIMS
Pursuant to Public Contract Code section 9201, the City shall provide the Contractor with timely notification of the receipt of any third-party claims relating to the Contract. The City is entitled to recover reasonable costs incurred in providing such notification.
ARTICLE 53 STATE LICENSE BOARD NOTICE
Contractors are required by law to be licensed and regulated by the Contractors’ State License Board which has jurisdiction to investigate complaints against contractors if a complaint regarding a patent act or omission is filed within four (4) years of the date of the alleged violation. A complaint regarding a latent act or omission pertaining to structural defects must be filed within ten (10) years of the date of the alleged violation. Any questions concerning a contractor may be referred to the Registrar, Contractors’ State License Board, P.O. Box 26000, Sacramento, California 95826.
ARTICLE 54 INTEGRATION
1. Oral Modifications Ineffective. No oral order, objection, direction, claim or notice by any party or person shall affect or modify any of the terms or obligations contained in the Contract Documents.
2. Contract Documents Represent Entire Contract.The Contract Documents represent the entire agreement of the City and Contractor.
ARTICLE 55 ASSIGNMENT OF CONTRACT
Contractor shall not assign, transfer, convey, sublet or otherwise dispose of the rights or title of interest of any or all of this contract without the prior written consent of the City. Any assignment or change of Contractor’s name of legal entity without the written consent of the City shall be void.
Any assignment of money due or to become due under this Contract shall be subject to a prior lien for services rendered or Material supplied for performance of Work called for under the Contract Documents in favor of all persons, firms, or corporations rendering such services or supplying such Materials to the extent that claims are filed pursuant to the Civil Code, the Code of Civil Procedure or the Government Code.
ARTICLE 56 CHANGE IN NAME AND NATURE OF CONTRACTOR’S LEGAL ENTITY Should a change be contemplated in the name or nature of the Contractor’s legal entity, the Contractor shall first notify the City in order that proper steps may be taken to have the change reflected on the Contract and all related documents. No change of Contractor’s name or nature will affect City’s rights under the Contract, including but not limited to the bonds.
ARTICLE 57 ASSIGNMENT OF ANTITRUST ACTIONS
Pursuant to Public Contract Code section 7103.5, in entering into a public works contract or subcontract to supply goods, services, or materials pursuant to a public works contract, Contractor or subcontractor offers and agrees to assign to the City all rights, title, and interest in and to all
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causes of action it may have under Section 4 of the Clayton Act (15 USC, Section 15) or under the Cartwright Act (Chapter 2 (commencing with Section 16700) of Part 2 of Division 7 of the Business and Professions Code), arising from the purchase of goods, services, or materials pursuant to this contract or any subcontract. This assignment shall be made and become effective at the time the City tenders final payment to the Contractor, without further acknowledgment by the parties.
ARTICLE 58 PROHIBITED INTERESTS
No City official or representative who is authorized in such capacity and on behalf of the City to negotiate, supervise, make, accept, or approve, or to take part in negotiating, supervising, making, accepting or approving any engineering, inspection, construction or material supply contract or any subcontract in connection with construction of the project, shall be or become directly or indirectly interested financially in the Contract.
ARTICLE 59 CONTROLLING LAW
Notwithstanding any subcontract or other contract with any subcontractor, supplier, or other person or organization performing any part of the Work, this Contract shall be governed by the law of the State of California excluding any choice of law provisions.
ARTICLE 60 JURISDICTION; VENUE
Contractor and any subcontractor, supplier, or other person or organization performing any part of the Work agrees that any action or suits at law or in equity arising out of or related to the bidding, award, or performance of the Work shall be maintained in the Superior Court of Santa Clara County, California, and expressly consent to the jurisdiction of said court, regardless of residence or domicile, and agree that said court shall be a proper venue for any such action.
ARTICLE 61 LAWS AND REGULATIONS
1. Contractor shall give all notices and comply with all laws, ordinances, rules and regulations bearing on conduct of work as indicated and specified. If Contractor observes that drawings and specifications are at variance therewith, it shall promptly notify the Engineer in writing and any necessary changes shall be adjusted as provided for in this Contract for changes in work. If Contractor performs any work knowing it to be contrary to such laws, ordinances, rules and regulations, and without such notice to the Engineer, it shall bear all costs arising therefrom.
2. Contractor shall be responsible for familiarity with the Americans with Disabilities Act (“ADA”) (42 U.S.C. § 12101 et seq.). The Work will be performed in compliance with ADA regulations.
ARTICLE 62 PATENTS
Contractor shall hold and save the City, officials, officers, employees, and authorized volunteers harmless from liability of any nature or kind of claim therefrom including costs and expenses for or on account of any patented or unpatented invention, article or appliance manufactured, furnished or used by Contractor in the performance of this contract.
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ARTICLE 63 OWNERSHIP OF CONTRACT DOCUMENTS
All Contract Documents furnished by the City are City property. They are not to be used by Contractor or any subcontractor on other work nor shall Contractor claim any right to such documents. With exception of one complete set of Contract Documents, all documents shall be returned to the City on request at completion of the Work.
ARTICLE 64 NOTICE OF TAXABLE POSSESSORY INTEREST
In accordance with Revenue and Taxation Code section 107.6, the Contract Documents may create a possessory interest subject to personal property taxation for which Contractor will be responsible.
ARTICLE 65 SURVIVAL OF OBLIGATIONS
All representations, indemnifications, warranties, and guarantees made in, required by, or given in accordance with the Contract Documents, as well as all continuing obligations indicated in the Contract Documents, will survive final payment, completion, and acceptance of the Work or termination or completion of the Contract or termination of the services of Contractor.
END OF GENERAL CONDITIONS
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00 73 13 – SPECIAL CONDITIONS
00 73 13 – SPECIAL CONDITIONS
1. Engineer of Record.
a. For purposes of this Project, the Engineer of Record or Engineer shall be:
Jacob Schramm, P.E., Kimley-Horn and Associates. He can be reached at 1-(650)-356-8205 or at [email protected]
2. Location of the Project.
b) The project is located at the locations shown on sheet G-01 of the approved plans:
3. Status of the Project Area and Rights-of-Way.
a. City, at its expense, will provide all rights-of-way or permits, or both, covering the crossing of private property and public and private rights-of-way necessary for the permanent Work; provided, however, Contractor shall, at its expense, obtain any bonds or insurance policies or pay any fees and enter into any agreements required by a controlling authority, e.g., Caltrans or Southern Pacific Railroad Company, before Contractor enters upon any property or right-of-way under the jurisdiction of any such controlling authority for the purpose of performing Work.
b. City has acquired or is negotiating to acquire any rights-of-way, or both, necessary for the permanent Work.
c. If such permits are required, all operations of Contractor shall conform to the restrictions, regulations, and requirements set forth in said permits, copies of which will be included in the Contract Documents.
d. Contractor may be required, as a condition for receiving final payment, to obtain, and provide City’s Representative with copies of, executed damage releases from the owners of public and private property whose property has been damaged by the Work. The damage releases will be on a form provided by City.
e. Contractor shall, also, as a condition for receiving final payment, obtain, and provide City’s Representative with copies of, executed damage releases from the owners of certain public and private property or areas which have been crossed by the Work or otherwise affected by the Work. The damage releases will be on a form provided by City.
4. Site Data.
NOT USED
5. Pre-Purchased or Pre-Negotiated Material.
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NOT USED
6. Designation of City’s Representative.
a. Unless otherwise modified by City, City’s Representative shall be Mohit Chaudhary, Associate Civil Engineer.
7. Project Retention
In accordance with Public Contract Code § 7201, City will withhold 5% of each progress payment as retention on the Project.
8. Liquidated Damages Due to Contractor Delay.
a. Time is of the essence. Should Contractor fail to complete all or any part of the Work within the time specified in the Contract Documents, City will suffer damage, the amount of which is difficult, if not impossible, to ascertain and, pursuant to the authority of Government Code section 53069.85, City shall therefore be entitled to Four Thousand Eight Hundred Dollars $4,800 per Calendar Day as liquidated damages for each Day or part thereof that actual completion extends beyond the time specified.
b. Liquidated damages may be deducted from progress payments due to Contractor, Project retention or may be collected directly from Contractor, or from Contractor's surety. These provisions for liquidated damages shall not prevent City, in case of Contractor's default, from terminating the Contractor.
9. Utility Outages – Notices to Residents.
a. Should Contractor’s operations require interruption of any utility service, Contractor shall notify City at least ten (10) Days prior to the scheduled outage. Contractor will notify all impacted residents on a form provided by City at least seven (7) Days prior to the scheduled outage. b. Contractor shall be responsible for providing, at its cost, any temporary utility or facilities necessitated by the utility outage.
10. Schedule Constraints.
NOT USED.
11. Safety Programs.
NOT USED.
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12. Coordination with Other Contractors.
NOT USED.
END OF SPECIAL CONDITIONS
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01 00 00 – GENERAL REQUIREMENTS
01 00 00 – GENERAL REQUIREMENTS
1. GENERAL
a. Description
a) The 2024 Street Sealing Phase 2 project consists of rehabilitating various streets throughout the city within the limits as shown on the plans. Street Sealing shall include crack and slurry seal, cape seal, AC Dig out/Repair and Grind/Overlay where required. In addition, work will include minor concrete work; upgrading existing curb ramps to comply with current ADA requirements; curb and gutter repair; signing and striping; sidewalk repair; traffic signal modifications; and adjusting utility covers to finished grade shall all be completed according to these plans and all associated contract documents.
b) The project is located at the locations shown on G-01on the approved plans. Refer to approved plans for more information.
2. (NOT USED)
3. EXECUTION
a. Layout of Work and Quantity Surveys
a) General. The Contractor shall utilize a properly licensed surveyor to perform all layout surveys required for the control and completion of the Work, and all necessary surveys to compute quantities of Work performed. b) City and/or the Engineer of Record has established primary control to be used by the Contractor for establishing lines and grades required for the Work.
c) Primary control consists of benchmarks and horizontal control points in the vicinity of the Work. A listing and identification of the primary control is provided on the Drawings. Before beginning any layout work or construction activity, the Contractor shall check and verify primary control and shall advise the City Representative of any discrepancies.
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d) Quantity surveys. The Contractor shall perform such surveys and computations as are necessary to determine quantities of Work performed or placed during each progress payment period, and shall perform all surveys necessary for the City Representative to determine final quantities of Work in place. The City Representative will determine final quantities based upon the survey data provided by the Contractor, and the design lines and grades. If requested by the City Representative, the Contractor shall provide an electronic copy of data used for quantity computations.
e) All surveys performed for measurement of final quantities of Work and material shall be subject to approval of City’s Representative. Unless waived by City’s Representative in each specific case, quantity surveys made by the Contractor shall be made in the presence of City’s Representative.
f) Surveying
i. Accuracy. Degree of accuracy shall be an order high enough to satisfy tolerances specified for the Work and the following:
(1) Right-of-way and alignment of tangents and curves shall be within 0.1 foot.
(2) Structure points shall be set within 0.01 foot, except where operational function of the special features or installation of metalwork and equipment require closer tolerances. When formwork has been placed and is ready for concrete, the Contractor shall check the formwork for conformance with the drawings and to ensure that the forms are sufficiently within the tolerance limits for the completed work.
(3) Cross-section points shall be located within 0.1 foot, horizontally and vertically.
(4) Aerial Mapping shall meet National Mapping Standards for 2-foot contour intervals.
ii. Records. Survey data shall be recorded in accordance with recognized professional surveying standards. Original field notes, computations, and other surveying data shall be recorded on electronic data collectors or in standard field books and must be of sufficient quality to enable the Contractor to prepare accurate record drawings as required by the Contract Documents.
iii. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required for surveys for the layout of work and quantity surveys shall be included in the Schedule of Pay Items for items of work requiring the surveys. No additional compensation shall be made to the Contractor for this Work.
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b. SCHEDULE
a) Estimated Schedule. Within 21 Days after the issuance of the Notice of Award, Contractor shall prepare a Project schedule and shall submit this to the Engineer for Approval. The receipt or Approval of any schedules by the Engineer or the City shall not in any way relieve the Contractor of its obligations under the Contract Documents. The Contractor is fully responsible to determine and provide for any and all staffing and resources at levels which allow for good quality and timely completion of the Project. Contractor’s failure to incorporate all elements of Work required for the performance of the Contract or any inaccuracy in the schedule shall not excuse the Contractor from performing all Work required for a completed Project within the specified Contract time period.
If the required schedule is not received by the time the first payment under the Contract is due, Contractor shall not be paid until the schedule is received, reviewed and accepted by the Engineer.
b) Schedule Contents. The schedule shall indicate the beginning and completion dates of all phases of construction; critical path for all critical, sequential time related activities; and “float time” for all “slack” or “gaps” in the non-critical activities. The schedule shall clearly identify all staffing and other resources which in the Contractor’s judgment are needed to complete the Project within the time specified for completion. The overall Project Schedule duration shall be within the Contract time. c) Weather Allowance. The schedule shall allow adequate time for inclement weather.
d) Schedule Updates. Contractor shall continuously update its construction schedule. Contractor shall submit an updated and accurate construction schedule to the Engineer monthly when requested to do so by Engineer.
Contractor shall also submit schedules showing a three-week detailed look-ahead at bi-weekly meetings conducted with the City. The Engineer may withhold progress payments or other amounts due under the Contract Documents if Contractor fails to submit an updated and accurate construction schedule.
c. TEMPORARY FIELD OFFICE
NOT USED.
d. PROTECTION OF WORK AND PROPERTY
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a) All traffic detector loops, fences, walls, culverts, monuments, or other obstructions (except property line monuments within five (5) feet of the centerline of the mains) which are removed, damaged, or destroyed in the course of the Work, shall be replaced or repaired to the original condition at no additional cost to City. Contractor shall be responsible for the cost to repair, replace, relocate, and replacement of utilities whether or not those obstructions have been shown on the Plans, unless otherwise stated herein. It is then the Contractor’s responsibility to employ at its expense a Licensed Land Surveyor to restore all property line monuments located more than five (5) feet from the centerline of the mains, which are destroyed or obliterated. Property line monuments located within five (5) feet of the centerline of the mains will be replaced by the City at no expense to the Contractor, provided the City is notified at least 48 hours before the property line monuments are damaged.
b) Contractor shall provide such heat, covering, and enclosures as are necessary to protect all Work, materials, equipment, appliances, and tools against damage by weather conditions.
c) Contractor shall take adequate precautions to protect existing sidewalks, curbs, pavements, utilities, and other adjoining property and structures, and to avoid damage thereto, and Contractor shall repair any damage thereto caused by the Work operations. Contractor shall:
i. Enclose the working area with a substantial barricade, and arrange work to cause minimum amount of inconvenience and danger to the public.
ii. Provide substantial barricades around any shrubs or trees indicated to be preserved.
iii. Deliver materials to the Project site over a route designated by the Engineer.
iv. Provide any and all dust control required and follow the Applicable air quality regulations as appropriate. If the Contractor does not comply, the City shall have the immediate authority to provide dust control and deduct the cost from payments to the Contractor. v. Confine Contractor’s apparatus, the storage of materials, and the operations of its workers to limits required by law, ordinances, permits, or directions of the Engineer. Contractor shall not unreasonably encumber the Project site with its materials. vi. Take care to prevent disturbing or covering any survey markers, monuments, or other devices marking property boundaries or corners. If such markers are disturbed by accident, they shall be replaced by a civil engineer or land surveyor acceptable to the City, at no cost to the City.
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vii. Ensure that existing facilities, fences and other structures are all adequately protected and that, upon completion of all Work, all facilities that may have been damaged are restored to a condition acceptable to the City.
viii. Preserve and protect from injury all buildings, pole lines and all direction, warning and mileage signs that have been placed within the right-of-way.
ix. At the completion of work each day, leave the Project site in a clean, safe condition.
x. Comply with any approved stage construction and traffic control plans. Access to residences and businesses shall be maintained at all times, unless otherwise permitted in writing by the City. xi. Cover and or protect work and project site as may be required to prevent or mitigate schedule delay and to allow work to proceed during wet weather or wet conditions.
d) These precautionary measures will apply continuously and not be limited to normal working hours. Full compensation for the Work involved in the preservation of life, safety and property as above specified shall be considered as included in the prices paid for the various contract items of Work, and no additional allowance will be made, therefore. e) Should damage to persons or property occur as a result of the Work, Contractor shall be responsible for proper investigation, documentation, including video or photography, to adequately memorialize and make a record of what transpired. The City shall be entitled to inspect and copy any such documentation, video, or photographs.
e. SITE CONDITIONS SURVEYS
a) Work Included.
b) Contractor shall conduct thorough pre-construction and post-construction site condition surveys of the entire project area. Site Conditions surveys shall include written documentation of the conditions found, as well as photographs and video recordings of the area within at least 80 feet of any construction area and staging area. The written notes, photographs, and video shall be suitable for forensic purposes to resolve any damage claims that may arise as a result of construction.
c) Submittals.
i. Written documentation of site condition survey at pre-construction and post-construction.
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ii. Photographs as described herein of pre-construction and post-construction conditions. iii. Video recordings as described herein of pre-construction and post-construction conditions.
iv. Submittals shall be made within three days of the surveys. All post-construction data shall be submitted prior to the final project inspection.
d) Site Condition Written Documentation.
e) Written documentation shall include the time, date, and conditions under which the site survey was made. The documentation shall note the condition of structures, pavement, sidewalks, utilities, fences, and etc. within the work areas.
f) Photographs & Video Recording.
i. General – Prior to starting Work, Contractor shall provide a video recording of the project site. Contract shall take enough photographs during each site survey to provide a record of conditions existing prior to construction and conditions after construction. Pre-construction video and photographs shall be taken prior to any construction or mobilization of equipment, but not more that one week prior to actual start of work. The pre-construction photographs may be staged at different times to match the progression of the Work.
ii. The photographs shall document existing damage to public and private facilities, both prior to and after construction. Conditions to be documented include, but are not limited to: sidewalk cracks, broken curbs, separated property walls, improvements within public rights-of-way, access roads used, utility covers and markings, signs, pavement striping, pavement, unique or unusual conditions, adjacent driveways, landscaping, survey markers, and any feature directed by the Engineer. Private property that is adjacent to the public right-of-way shall be documented to the extent visible from the public right-of-way.
iii. Photographs shall include items to indicate scale, as needed. In particular, scales or other items shall be laid next to close ups of structural cracks and other damaged areas being recorded.
Scaling shall also be used to document elevation differences, as needed.
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iv. One set of color prints and the preconstruction site video shall be submitted. Additional sets shall be available for reviewing in settling any construction disputes. A set of photos shall also be furnished in electronic format. The resolution shall be at least equal to 7 mega-pixels. All photos shall be documented as to time and date taken, photographer, project number, location, and orientation. Documentation shall include a brief description of objects photographed.
g) Video Recording.
i. Video recordings shall document the conditions of the entire area affected by construction, as well as nearby structures and facilities. The general documentation requirements for videos are the same as for photographs. Video recorders shall accurately and continuously record the time and date.
ii. Video recordings shall include an audio portion made simultaneously during the videoing. The audio recording shall describe the location, time, orientation, and objects being recorded. Special commentary shall be provided for unusual conditions or damage noted.
iii. Video equipment shall be capable of producing high resolution images and shall have zoom capabilities.
iv. Video recordings shall provide an overall picture of the sites and shall provide detailed images of damaged areas. Video shall extend to the maximum height of structures.
v. The Engineer shall have the right to reject any audio video recordings submitted with unintelligible audio, uncontrolled pan or zoom, or of poor quality. Video recordings shall be repeated when rejected.
vi. Video recordings shall be submitted with labels indicating the project, date, recorder, and other pertinent information.
Recordings shall be submitted either digitally or on standard DVDs in a standard format.
h) Timing.
Contractor shall provide written notice of the time scheduled for the site conditions survey and the place it is to begin. Contractor shall obtain the Engineer’s concurrence prior to beginning the condition survey. The Engineer reserves the right to cancel the survey due to weather conditions or other problems. Videoing shall be done during times of good visibility and no videoing or photography shall be done during periods of visible precipitation or when standing water obscures pavement. Contractor shall provide the Engineer with an opportunity to have a representative present when taking the photos and provide guidance during photographing.
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01 00 00 – GENERAL REQUIREMENTS
i) Site Surveyor.
The site condition surveyor(s) shall be experienced in construction and potential damage concerns. The site condition surveyor(s) shall be familiar with the photography and video equipment being used.
j) Field Quality Control.
Prior to submitting videos and photographs, the Contractor shall spot check the photos and videos in the field to insure they accurately reflect the actual conditions and to insure they are correctly labeled.
k) Soils Compaction Testing.
i. All soils compaction testing will be done by a licensed geotechnical engineer furnished by the City. Soils compaction testing will be done for all footings and foundations prior to placement of rebar or concrete.
ii. For pipeline construction, soil compaction testing will be done at 100-foot intervals or as ordered by the project soils/geotechnical report at the bottom of the trench prior to placement of pipe bedding; at the top of the pipe bedding above the pipe; every two vertical feet of trench backfill or as otherwise ordered by the project soils/geotechnical report; at the top of the trench backfill, which should be the bottom of the pavement section; and at the top of the aggregate base prior to pavement construction. f. SUBMITTAL REQUIREMENTS FOR MANUALS AND RECORD
DRAWINGS
a) General. The Contractor shall furnish all materials and perform all Work required for furnishing submittals to City in accordance with Contract Documents. The Contractor shall submit Project Record Drawings, Technical Manual, Spare Parts, and other required items within 5 days following completion of project construction, and prior to Contractors request for Project Acceptance.
b) Technical Manuals.
i. The Contractor shall submit technical operation and maintenance information for each item of mechanical, electrical and instrumentation equipment in an organized manner in the Technical Manual. It shall be written so that it can be used and understood by City’s operation and maintenance staff.
ii. The Technical Manual shall be subdivided first by specification section number; second, by equipment item; and last, by "Category." The Contractor shall furnish to City four (4) identical Technical Manuals. Each set shall consist of one or more volumes, each of which shall be bound in a standard binder.
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g. Spare Parts List - The Contractor shall furnish to City six (6) identical sets of spare parts information for all mechanical, electrical, and instrumentation equipment. The spare parts list shall include the current list price of each spare part. The spare parts list shall include those spare parts which each manufacturer recommends be maintained by City in inventory. Each manufacturer or supplier shall indicate the name, address, and telephone number of its nearest outlet of spare parts to assist City in ordering. The Contractor shall cross-reference all spare parts lists to the equipment numbers designated in the Contract Documents. The spare parts lists shall be bound in standard size, 3-ring binder.
h. Record Drawings
a) The Contractor shall maintain one record set of Drawings at the Site. On these, it shall mark all Project conditions, locations, configurations, and any other changes or deviations which may vary from the information represented in the original Contract Documents, including buried or concealed construction and utility features which are revealed during the course of construction. Special attention shall be given to recording the horizontal and vertical location of all buried utilities that differ from the locations indicated, or which were not indicated on the Contract Drawings.
Said record drawings shall be supplemented by any detailed sketches as necessary or directed to fully indicate the Work as actually constructed.
These master record drawings of the as-built conditions, including all revisions made necessary by Addenda and Change Orders shall be maintained up-to-date during the progress of the Project. Red ink shall be used for alterations and notes. Notes shall identify relevant Change Orders by number and date.
b) For all Projects involving the installation of any pipeline, Contractor shall survey and record the top of the pipe at a minimum of every 100 linear feet, and at each bend, recording both the horizontal and vertical locations.
c) Record drawings shall be accessible to City’s Representative at all times during the construction period. The record drawings shall be kept up to date and will be checked by the City prior to each progress payment.
Failure on the Contractor’s part to keep record drawings current could result in withholding partial payment.
d) Upon Completion of the Project and as a condition of final acceptance, the Contractor shall finalize and deliver a complete set of Record Drawings to City’s Representative. The information submitted by the Contractor will be assumed to be correct, and the Contractor shall be responsible for, and liable to City, for the accuracy of such information, and for any errors or omissions which may or may not appear on the Record Drawings.
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e) Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to complete the Manuals and Record Drawings shall be included in Contractor’s bid and distributed in the Schedule of Pay. No additional compensation shall be made to the Contractor for this Work.
i. MATERIALS
f) Materials to be Furnished by the Contractor
i. Inspection of Materials. Materials furnished by the Contractor which will become a part of the Project shall be subject to inspection at any one or more of the following locations, as determined by City’s Representative: at the place of production or manufacture, at the shipping point, or at the site of the Work. To allow sufficient time to provide for inspection, the Contractor shall submit to City’s Representative, at the time of issuance, copies of purchase orders or other written instrument confirming procurement of the materials, including drawings and other pertinent information, covering materials on which inspection will be made.
ii. No later than fourteen (14) Days prior to manufacture of material, Contractor shall inform City’s Representative, in writing, the date the material is to be manufactured.
iii. Contractors Obligations. The inspection of materials at any of the locations specified above or the waiving of the inspection thereof shall not impact whether the materials and equipment conform to the Contract Documents. Contractor will not be relieved from furnishing materials meeting the requirements of the Contract Documents due to City’s inspection or lack of inspection of the equipment or materials. Acceptance of any materials will be made only after materials are installed in the Project.
iv. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to accommodate City’s testing efforts, including any travel required by Contractor’s forces, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items related to the materials requiring testing.
No additional compensation shall be made to the Contractor for this Work.
j. LOCAL CONDITIONS AND REQUIREMENTS
a) Access to Work and Haul Routes
i. General. All work on the rights-of-way necessary for access to the Site shall be performed by the Contractor. Contractors anticipated Haul Routes shall be in compliance with the City's approved Truck Routes available from the Engineer.
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ii. Access, Damage, Restoration. The Contractor shall make his own investigation of the condition of available public or private roads and of clearances, restrictions, bridge-load limits, permit or bond requirements, and other limitations that affect or may affect transportation and ingress or egress at the Site.
iii. The Contractor shall maintain and repair any damage arising out of Contractor’s operations to all roads used during construction of the Project, and upon completion of all Work, but prior to final acceptance, the roads shall be restored to their original condition.
Prior to using any road for access to the Site, the Contractor shall conduct a photograph and/or video survey of the roadway with a copy submitted to City’s Representative.
iv. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to complete this Work, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work.
b) Power. Contractor shall provide at its own expense all necessary power required for operations under the contract. The Contractor shall provide and maintain in good order such modern equipment and installations as shall be adequate in the opinion of the Engineer to perform in a safe and satisfactory manner the Work required by the contract.
c) Construction Water.
i. Construction water shall not be used for purposes other than those required to satisfactorily complete the contract. ii. Construction recycled water will be made available to the contractor from one of three fill locations within the city limits. If there is a need for construction recycled water during
construction, the contractor shall apply for a city construction recycled water meter at the city hall finance counter prior to the beginning of work. A security deposit of $2,000 is required for the construction water meter from which the meter rental fee and cost of water will be deducted. if the rental fee and the water costs exceed the $2,000.00 deposited, an invoice will be issued to the contractor for payment.
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01 00 00 – GENERAL REQUIREMENTS
iii. Construction potable water will only be made available to the contractor if it can be demonstrated that recycled water cannot be used for the construction activities. potable water will be made available from existing city fire hydrant(s) nearest the proposed construction site as approved by the engineer, or by such other means as may be expressly approved in writing by the engineer. If there is a need for water during construction, the contractor shall apply for a city construction water meter at the city hall finance counter prior to the beginning of work. a security deposit of $2,000 is required for the construction water meter from which the meter rental fee and cost of water will be deducted. If the rental fee and the water costs exceed the $2,000.00 deposited, an invoice will be issued to the contractor for payment.
iv. All required water, all work and materials required for obtaining, pumping, transporting and applying and otherwise disposing of said water shall be in an approved manner and shall be performed by, and at the expense of the contractor and no extra or separate compensation will be made thereof.
d) Operation of Existing Water Facilities
i. The Contractor shall not operate any of the existing water systems, including pumps, motors, valves, and hydrants, but shall contact the City two (2) working days in advance with a list and location of the water system facilities that will require operating, opening, stopping, or closure by the City.
ii. At the option of the Engineer, the Contractor may be permitted to operate valves for the purpose of making connections to existing mains. The City will perform all notification to existing customers regarding temporary loss of service.
iii. Contractor shall submit a request on City’s standard form for any shut-down of existing water facilities.
e) Construction at Existing Utilities
i. General. Where the Work to be performed crosses or otherwise interferes with water, sewer, gas, or oil pipelines; buried cable; or other public or private utilities, the Contractor shall perform construction in such a manner so that no damage will result to either public or private utilities. It shall be the responsibility of the Contractor to determine the actual locations of, and make accommodates to maintain, all utilities.
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ii. Permission, Notice and Liability. Before any utility is taken out of service, permission shall be obtained by the Contractor from the owner. The owner, any impacted resident or business owner and the City Representative will be advised of the nature and duration of the utility outage as well as the Contractor’s plan for providing temporary utilities if required by the owner. The Contractor shall be liable for all damage which may result from its failure to maintain utilities during the progress of the Work, and the Contractor shall indemnify City as required by the Contract Documents from all claims arising out of or connected with damage to utilities encountered during construction; damages resulting from disruption of service; and injury to persons or damage to property resulting from the negligent, accidental, or intentional breaching of utilities.
iii. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to complete this Work, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work.
f) Traffic Control
i. General. Contractor shall abide by traffic control plans approved by the City.
ii. Protections. Roads subject to interference by the Work shall be kept open or suitable temporary passages through the Work shall be provided and maintained by the Contractor. The Contractor shall provide, erect, and maintain all necessary barricades, suitable and sufficient flasher lights, flag persons, danger signals, and signs, and shall take all necessary precautions for the protection of the Work and the safety of the public. No construction work along public or private roads may proceed until the Contractor has proper barricades, flasher lights, flag persons, signals, and signs in place at the construction site.
iii. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to complete this Work, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work.
g) Cleaning Up
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01 00 00 – GENERAL REQUIREMENTS
i. Contractor at all times shall keep premises free from debris such as waste, rubbish, and excess materials and equipment.
Contractor shall not store debris under, in, or about the premises.
Contractor shall also clean all asphalt and concrete areas to the degree necessary to remove oil, grease, fuel, or other stains caused by Contractor operations or equipment, including all USA markings. The use of water, resulting in mud on streets, will not be permitted as substitute for sweeping or other methods. Dust control may require having a water truck onsite for the duration of the project, and/or use of temporary hoses and pipelines to convey water.
ii. Contractor shall fully clean up the site at the completion of the Work. If the Contractor fails to immediately clean up at the completion of the Work, the City may do so and the cost of such clean up shall be charged back to the Contractor.
k. ENVIRONMENTAL QUALITY PROTECTION
a) Environmental Conditions
NOT USED
b) Landscape and Vegetation Preservation
i. General. The Contractor shall exercise care to preserve the natural landscape and vegetation, and shall conduct operations so as to prevent unnecessary destruction, scarring, or defacing of the natural surroundings in the vicinity of the Work.
ii. Damage and Restoration. Movement of crews and equipment within the rights-of-way and over routes provided for access to the Work shall be performed in a manner to prevent damage to property. When no longer required, construction roads shall be restored to original contours.
iii. Upon completion of the Work, and following removal of construction facilities and required cleanup, land used for construction purposes and not required for the completed installation shall be scarified and regraded, as required, so that all surfaces are left in a condition that will facilitate natural revegetation, provide for proper drainage, and prevent erosion. iv. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to complete this Work, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work.
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01 00 00 – GENERAL REQUIREMENTS
c) Protected Species
i. General. If, in the performance of the Work, evidence of the possible occurrence of any State or Federally listed threatened or endangered plant or animal is discovered, the Contractor shall notify the City Representative immediately, giving the location and nature of the findings. Written confirmation of the evidence, location and nature of the findings shall be forwarded to City within 2 Days.
ii. Procedures. The Contractor shall immediately cease all construction activities in the immediate area of the discovery to the extent necessary to protect the endangered plant or animal. iii. If directed by the City Representative, Contractor will refrain from working in the immediate area, suspend the Work in its entirety, or alter its performance to ensure full compliance with all applicable permits, laws and regulations. Any City directed changes to the Work as a result of a siting will be pursuant to the Contract Documents.
iv. False Siting. Any costs or delays incurred by City or the Contractor due to unreasonable or false notification of an endangered plant or animal will be borne by the Contractor. v. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to comply with this paragraph, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work. d) Preservation of Historical and Archeological Resources i. General. If, in the performance of the Work, Contractor should unearth cultural resources (for example, human remains, animal bones, stone tools, artifacts and/or midden deposits) through excavation, grading, watering or other means, the Contractor notify the Construction/Archeological Monitor and/or the City Representative immediately, giving the location and nature of the findings. Written confirmation of the evidence, location and nature of the findings shall be forwarded to the
Construction/Archeological Monitor and/or City within 2 Days. ii. Procedures. The Contractor shall immediately cease all construction activities in the immediate area of the discovery to the extent necessary to protect the cultural resource.
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01 00 00 – GENERAL REQUIREMENTS
iii. If directed by the City Representative, Contractor will refrain from working in the immediate area, suspend the Work in its entirety, or re-sequence and/or alter its performance to ensure full compliance with all applicable permits, laws and regulations.
Should the presence of cultural resources be confirmed, the Contractor will assist the City Representative and the
Construction/Archeological Monitor in the preparation and implementation of a data recovery plan. The Contractor shall provide such cooperation and assistance as may be necessary to preserve the cultural resources for removal or other disposition.
Any City directed changes to the Work as a result of the cultural resource will be pursuant to the Contract Documents.
iv. Contractor’s Liability. Should Contractor, without permission, injure, destroy, excavate, appropriate, or remove any cultural resource on or adjacent to the Site, it will be subject to disciplinary action, arrest and penalty under applicable law. The Contractor shall be principally responsible for all costs of mitigation and/or restoration of cultural resources related to the unauthorized actions identified above. Contractor shall be required to pay for unauthorized damage and mitigation costs to cultural resources (historical and archeological resources) as a result of unauthorized activities that damage cultural resources and shall indemnify City pursuant to the Contract Documents.
v. Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to comply with this paragraph, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work. e) Dust and Pollution Control
i. Contractor shall provide all necessary material, equipment and labor to prevent and control the emission of dust and any other potential pollutant on site. Contractor shall remove construction caused debris from streets and sidewalks as directed by the Engineer.
ii. Contractor shall not discharge into the atmosphere from any source smoke, dust or other air contaminants in violation of the law, rules, and regulations of the governing agency.
Cost. Unless otherwise called for by the Contract Documents, the cost of all material, equipment, and labor required to comply with this paragraph, shall be included in Contractor’s bid and distributed in the Schedule of Pay Items. No additional compensation shall be made to the Contractor for this Work.
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01 00 00 – GENERAL REQUIREMENTS
f) Management of Storm, Surface and Other Waters
i. Storm water, surface water, groundwater, and nuisance, or other waters may be encountered at various times during construction of the Project. Federal and State laws require the City and its contractors to manage such waters pursuant to the requirements of California State Water Resources Control Board Order Number 2009-0009-DWQ, the Federal Clean Water Act, and the California Porter Cologne Water Quality Control Act. Contractor
acknowledges that it has investigated the risk arising from such waters in conjunction with the Project, has prepared its Bid accordingly, and assumes any and all risks and liabilities arising therefrom.
ii. The Contractor shall keep itself and all subcontractors, staff, and employees fully informed of and in compliance with all local, state and federal laws, rules and regulations that may impact, or be implicated by the performance of the Work including, without limitation, all applicable provisions of the City’s ordinances regulating discharges of storm water; the Federal Water Pollution Control Act (33 U.S.C. § 1251 et seq.); the California Porter-Cologne Water Quality Control Act (Water Code § 13000 et seq.); and any and all regulations, policies, or permits issued pursuant to any such authority. These include, but are not limited to the San Francisco Bay Regional Water Quality Control Board Order No.
R2-2015-0049 (NPDES Permit No. CAS 612008), and State
Water Resources Control Board Order No. 2010-0014-DWQ,
Order No. 2009-0009-DWQ, and Order No. 2012-0006-DWQ, and any amendment or renewal thereof (“Construction General Permit”). Contractor must perform all construction operations in such a manner as to comply, and ensure all subcontractors to comply, with all applicable Federal, State, and local laws, orders, and regulations concerning the control and abatement of water pollution; and all terms and conditions of any applicable permits issued for the Project. In the event there is a conflict between Federal, State, and local laws, regulations, and requirements, the most stringent shall apply.
iii. Compliance with Construction General Permit. Contractor must comply with all aspects of the Construction General Permit, State Water Resources Control Board (State Board) Water Quality Order No. 2009-0009-DWQ, as amended by Order Nos. 2010- 0014-DWQ and 2012-0006-DWQ, and any amendment or renewal thereof (NPDES CAS000002), for all projects that involve construction on or disturbance of one acre or more of land or which are part of a larger common plan of development or sale. (1) Permit registration. Unless otherwise specified in the Special Conditions, Contractor must prepare the Notice of Intent for coverage under the Construction General Permit and all Permit Registration Documents (PRDs), including but not limited to the Storm
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01 00 00 – GENERAL REQUIREMENTS
Water Pollution Prevention Plan (SWPPP), as those terms are defined in the Construction General Permit. Contractor must coordinate submittal of all PRDs with tthe City’s Legally Responsible Person and/or Authorized Signatory, as those terms are defined in the Construction General Permit.
The Contractor must submit the PRDs, including the SWPPP to the City Representative for review not less than fifteen (15) Days prior to the start of on- site construction work. City will file the Notice of Intent and PRDs and pay the filing fee.
(2) Before any Construction General Permit related documents may be submitted to the State Board or implemented on the Project site, they must first be reviewed and accepted by City. Acceptance by the City does not relieve the Contractor from ensuring such documents comply with all applicable laws, regulations, and orders.
(3) Contractor must ensure that the SWPPP is developed by a Qualified SWPPP Developer and implemented by a Qualified SWPPP Practitioner as those terms are defined in the Permit. Contractor must implement the SWPPP and all other provisions of the Construction General Permit, including the monitoring and reporting requirements, preparing and submitting all reports, plans, inspections, and monitoring information in compliance with the Construction General Permit. The SWPPP must include industry standard requirements for water quality control including but not be limited to the following:
Sediment and erosion control measures to manage
sediment and erosion including vegetative practices,
structural control, silt fences, straw dikes, sediment controls or operator controls as appropriate. Storm water
management measures shall be instituted as required,
including velocity dissipaters, and solid waste controls shall address controls for building materials and offsite tracking of sediment.
Wastewater and storm water management controls to divert offsite surface flows around the Project site and to divert surface flows within the Project area away from areas of open earth or stockpiles of building and other materials.
Wastewater from general construction activities, such as drain water collection, aggregate processing, concrete
batching, drilling, grouting, or other construction operations, shall not enter flowing or dry watercourses without having met the authorized non-storm water discharge requirements listed in State Board Water Quality Order No. 2009-0009- DWQ, Section III.C., including proper notification to the Regional Water Board.
Pollution prevention measures including methods of
dewatering, unwatering, excavating, or stockpiling earth and rock materials which include prevention measures to control
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01 00 00 – GENERAL REQUIREMENTS
silting and erosion, and which will intercept and settle any runoff of sediment-laden waters.
Turbidity prevention measures for prevention of excess
turbidity including, but are not restricted to, intercepting ditches, settling ponds, gravel filter entrapment dikes, flocculating processes, recirculation, combinations thereof, or other approved methods that are not harmful to aquatic life. All such wastewaters discharged into surface waters, shall contain the least concentration of settleable material possible, and shall meet all conditions of section 402, the National Pollutant Discharge Elimination System (NPDES) permit.
Overall construction site management measures to address changes at the Project site as the Project moves through different phases and changes that account for rainy and dry season management practices.
Pollution control measures and construction activity
methods that will prevent entrance, or accidental spillage, of solid matter, contaminants, debris, or other pollutants or wastes, into streams, flowing or dry watercourses, lakes, wetlands, reservoirs, or underground water sources. Such pollutants and wastes include, but are not restricted to:
refuse, garbage, cement, sanitary waste, industrial waste, hazardous materials, radioactive substances, oil and other petroleum products, aggregate processing, tailings, mineral salts, and thermal pollution.
Control measures for stockpiled or deposited materials
prohibiting the stockpile or deposit of excavated materials, or other construction materials, near or on stream banks, lake shorelines, or other watercourse perimeters where they can be washed away by high water or storm runoff, or can, in any way, encroach upon the watercourse.
Develop and implement a Rain Event Action Plan (REAP),
if required, that must be designed and implemented to
protect all exposed portions of the site 48 hours prior to any likely precipitation event.
Monitoring, reporting and record keeping, as necessary to achieve compliance with applicable Permit requirements, including but not limited to annual reports and rain event reports.
(4) City retains the right to procure and maintain coverage under the Construction General Permit for the Project site if the Contractor fails to draft a SWPPP or other Construction General Permit related document, or fails to proceed in a manner that is satisfactory to City. City
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01 00 00 – GENERAL REQUIREMENTS
reserves the right to implement its own SWPPP at the Project site, and hire additional contractors to maintain compliance. Whether Contractor has adequately maintained compliance with the Construction General Permit shall be City’s sole determination. In the event that Contractor has failed or is unable to maintain compliance with the Construction General Permit, any costs or fines incurred by City in implementing a SWPPP, or otherwise maintaining compliance with the Construction General Permit shall be paid by the Contractor.
iv. For those Work sites where construction activity results in the disturbance of less than one acre of total land area and/or do not need coverage under the Construction General Permit, the Contractor shall be responsible for preparing and implementing construction industry best management practices to eliminate or reduce the discharge of pollutants from construction sites, such as the best management practices set forth in the CASQA
Construction BMP Handbook.
v. In addition to compliance with the Permit, Contractor shall comply with the lawful requirements of any applicable municipality, district, drainage district, flood control district, and other local agencies regarding discharges of storm water, surface water, groundwater or other nuisance waters off of the Project site.
g) Contractor violations.
i. Failure to implement the SWPPP or otherwise comply with the Construction General Permit or local state and federal laws is a violation of this Contract. Notwithstanding any other indemnity contained in this Agreement, Contractor agrees to indemnify, defend – with counsel acceptable to the City – and hold harmless the City, its officials, officers, agents, employees and authorized volunteers from and against any and all claims, demands, losses or liabilities of any kind or nature which the City, its officials, officers, agents, employees and authorized volunteers may sustain or incur for noncompliance with the laws, regulations, and ordinances listed above, arising out of or in connection with the Work, except for liability resulting from the sole established negligence, willful misconduct or active negligence of the City, its officials, officers, agents, employees or authorized volunteers. ii. City reserves the right to defend any enforcement action or civil action brought against the City for Contractor’s failure to comply with any applicable water quality law, regulation, or policy.
Contractor hereby agrees to be bound by, and to reimburse the City for the costs associated with, any enforcement action and/or settlement reached between the City and any relevant
enforcement entity.
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01 00 00 – GENERAL REQUIREMENTS
iii. City may seek damages from Contractor for delay in completing the Contract in accordance with the Contract Documents, caused by Contractor’s failure to comply with the the laws, regulations and policies described in this Article, or any other relevant water quality law, regulation, order, or policy.
iv. If noncompliance with any relevant law, regulation or permit, order, or policy occurs, the Contractor shall report this to the City Representative immediately, with the specific information submitted in writing within 2 Days. Consistent violations of applicable Federal, State, or local laws, orders, regulations, or Water Quality Standards may result in City stopping all site activity until compliance is ensured. The Contractor shall not be entitled to any change in Contract Price or Contract Times, claim for damage, or additional compensation by reason of such a work stoppage. Corrective measures required to bring activities into compliance shall be at the Contractor's expense.
h) Oil storage tanks management.
i. Storage tank placement. All oil or other petroleum product (hereinafter referred to collectively as oil) storage tanks shall be placed at least 20 feet from streams, flowing or dry watercourses, lakes, wetlands, reservoirs, and any other water source. ii. Storage area dikes. Storage areas shall be diked at least 12 inches high or graded and sloped to permit safe containment of leaks and spills equal to the capacity of all tanks and/or containers located within each area, plus a sufficient amount of freeboard to contain the 25-year rainstorm.
iii. Diked area barriers. Diked areas shall have an impermeable barrier at least 10 mils thick. Areas used for refueling operations shall have an impermeable liner at least 10 mils thick buried under 2 to 4 inches of soil.
iv. Spill Prevention Control and Countermeasure Plan (SPCC).
Where the location of a construction site is such that oil from an accidental spillage could reasonably be expected to enter into or upon the navigable waters of the United States or adjoining shorelines, and the aggregate storage of oil at the site is over 1,320 gallons or a single container has a capacity in excess of 660 gallons, the Contractor shall prepare an SPCC Plan. The Contractor shall submit the SPCC Plan to the Engineer at least 30 days prior to delivery or storage of oil at the site. The Plan must have been reviewed and certified by a registered professional engineer in accordance with 40 C.F.R., part 112
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01 00 00 – GENERAL REQUIREMENTS
i) Underground tank prohibition. The Contractor shall not use underground storage tanks.
j) Construction safety standards. The Contractor shall comply with the sanitation and potable water requirements of Section 7 of United States Bureau of Reclamation's publication “Reclamation Safety And Health Standards.”
k) Other Permits.
i. Other permits applicable to the Project are listed in the Special Conditions. The Contractor shall obtain all other necessary licenses and permits.
ii. Monitoring. The Contractor is required to conduct monitoring in order to meet the requirements of the permits, which may include sampling, testing and inspections.
iii. Recordkeeping. The Contractor shall retain all records and data required by the permits for the time specified in the contract. l) Cost. Except as specified herein, the cost of complying with this section shall be included in the Schedule of Pay Items for work which necessitate the water pollution prevention measures required by this paragraph.
l. TESTING REQUIREMENTS
a) General
i. Material and sample testing is the responsibility of the Contractor and their third-party material testers. Contractor shall follow the testing requirements specified in Exhibit “A” and provide test results to the City. The Federal requirements specified in Exhibit “A” take precedence over City testing requirements.
ii. The City has the right to audit testing procedures or perform supplemental testing to verify contract requirements are met. This does not release the contractor from the requirement to perform their own testing.
END OF GENERAL REQUIREMENTS
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01 20 00 – MEASUREMENT AND PAYMENT
01 20 00 – MEASUREMENT AND PAYMENT
1. Bid Item No. 1 – Mobilization (5% Maximum)
Refer to Section E-01 “Mobilization” for Measurement and Payment of Bid Item No. 1, Mobilization (5% Maximum).
2. Bid Item No. 2 – Neighborhood Notification
Refer to Section E-02 “Neighborhood Notification” for Measurement and Payment of Bid Item No. 2, Neighborhood Notification.
3. Bid Item No. 3 - Traffic Control (10% Maximum)
Refer to Section E-03 “Traffic Control” for Measurement and Payment of Bid Item No. 3, Traffic Control.
4. Bid Item No. 4 – Monument Referencing (Incl. Pre-Construction And Post Construction)
Refer to Section E-04 “Monument Referencing (Incl. Pre-Construction And Post Construction)” for Measurement and Payment of Bid Item No. 4, Monument Referencing.
5. Bid Item No. 5 – Prepare Water Pollution Control Program Refer to Section E-05 “Prepare Water Pollution Control Program” for Measurement and Payment of Bid Item No. 5, Prepare Water Pollution Control Program.
6. Bid Item No. 6 & No. 2B (Bid Additive Alternate #4) – Hot Mix Asphalt (Type A) Refer to Section E-07 “Hot Mix Asphalt” for Measurement and Payment of Bid Item No. 6 and No. 2B (Bid Additive Alternate #4), Hot Mix Asphalt (Type A).
7. Bid Item No. 7 & No.6(Bid Additive Alternate #4) – Base Repair (2” Thick) and (4” Thick)
Refer to Section E-08 “Base Repair (2” Thick)” and (4” Thick) for Measurement and Payment of Bid Item No. 7, Base Repair (2” Thick) and No. 6 for Bid Additive Alternate #4, Base Repair (4” Thick).
8. Bid Item No. 8 &No.2A (Bid Additive Alternate #4) – Asphalt Concrete Grinding (2”) and (2.5”)
Refer to Section E-09 “Asphalt Concrete Grinding (2” Thick)” and (2.5”) for Measurement and Payment of Bid Item No. 8, Asphalt Concrete Grinding (2” Thick) and No.2A for Bid Additive Alternate #4, Asphalt Concrete Grinding (2.5” Thick).
9. Bid Item No. 9 – Crack and Slurry Seal
Refer to Section E-10 “Crack and Slurry Seal” for Measurement and Payment of Bid Item No. 9, Crack and Slurry Seal.
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01 20 00 – MEASUREMENT AND PAYMENT
10. Bid Item No. 10 – Cape Seal
Refer to Section E-11 “Cape Seal” for Measurement and Payment of Bid Item No. 10, Cape Seal
11. Bid Item No. 11 & No.5(Bid Additive Alternate #4) – Sidewalk Removal and Replacement
Refer to Section E-12 “Portland Cement Concrete Construction” for Measurement and Payment of Bid Item No. 11 and No. 5 for Bid Additive Alternate #4, Sidewalk Removal and Replacement.
12. Bid Item No. 12 - Curb and Gutter Removal and Replacement (Beyond Ramp Limits)
Refer to Section E-12 “Portland Cement Concrete Construction” for Measurement and Payment of Bid Item No. 12, Curb and Gutter Removal and Replacement (Beyond Ramp Limits).
13. Bid Item No. 13 – Install Curb Ramp (Per Caltrans Standard Drawings) Refer to Section E-12 “Portland Cement Concrete Construction” for Measurement and Payment of Bid Item No. 13, Install Curb Ramp, Case A,B, C, CH and Custom.
14. Bid Item No. 14 – Install Wet Set Detectable Warning in Pedestrian Passageway Refer to Section E-12 “Portland Cement Concrete Construction” for Measurement and Payment of Bid Item No. 14, Install Wet Set Detectable Warning in Pedestrian Passageway.
15. Bid Item No. 15 – Adjust Monument Cover to Grade
Refer to Section E-13 “Adjustment Of Appurtenances” for Measurement and Payment of Bid Item No. 15, Adjust Monument Cover to Grade.
16. Bid Item No. 16 – Adjust Water Valve Cover to Grade Refer to Section E-13 “Adjustment Of Appurtenances” for Measurement and Payment of Bid Item No. 16, Adjust Water Valve Cover to Grade.
17. Bid Item No. 17 – Adjust Storm Sewer Manhole to Grade Refer to Section E-13 “Adjustment Of Appurtenances” for Measurement and Payment of Bid Item No. 17, Adjust Storm Sewer Manhole to Grade.
18. Bid Item No. 18 – Adjust Storm Drain Manhole to Grade Refer to Section E-13 “Adjustment Of Appurtenances” for Measurement and Payment of Bid Item No. 18, Adjust Storm Drain Manhole to Grade.
19. Bid Item No. 19 through 35 – Traffic Line (by Detail Number or Type) Refer to Section E-14 “Traffic Markings” for Measurement and Payment of Bid Item No. 19 through 35, Traffic Line (by Detail Number or Type).
20. Bid Item No. 36 through 47 – Pavement Marking (By Color or Symbol)
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01 20 00 – MEASUREMENT AND PAYMENT
Refer to Section E-14 “Traffic Markings” for Measurement and Payment of Bid Item No. 36 through 47, Pavement Marking (By Color or Symbol)
21. Bid Item No. 48– Blue Reflective Raised Pavement Marker Refer to Section E-14 “Traffic Markings” for Measurement and Payment of Bid Item No. 41, Blue Reflective Raised Pavement Marker
22. Bid Item No. 49 – Red Curb
Refer to Section E-14 “Traffic Markings” for Measurement and Payment of Bid Item No. 42, Red Curb
23. Bid Item No. 50 through 52 – Roadside Sign and Post, Roadside Sign, and Relocate Existing Sign and Post
Refer to Section E-14 “Traffic Markings” for Measurement and Payment of Bid Item No. 50 through 52, Roadside Sign and Post.
24. Bid Item No. 53 – Portable Changeable Message Sign
Refer to Section E-15 “Portable Changeable Message Sign” for Measurement and Payment of Bid Item No. 53, Portable Changeable Message Sign.
25. Bid Item No. 54 – APS Cabinet Control Unit
Refer to section E-21 “Traffic Signal Modification” for Measurement and Payment of Bid Item No 54 “APS Cabinet Control Unit” at the respective locations.
26. Bid Item No. 55 – Remove Pedestrian Push Button and Install Accessible Pedestrian Signal
Refer to section E-21 “Traffic Signal Modification” for Measurement and Payment of Bid Items No 55 “Remove Pedestrian Push Button and Install Accessible Pedestrian Signal” at the respective locations.
27. Bid Item No. 56 – Valley Gutter Repair
Refer to section E-12 “Portland Cement Concrete Construction” for Measurement and Payment of Bid Item No 56 “Valley Gutter Repair” at the respective locations.
28. Bid Additive Alternate #4 – Item #3 & 4 – Header Board and Root Barrier Refer to section E-22 “Landscape Material” for Measurement and Payment of Bid additive alternate Item No #3&4 “Header Board” and “Root Barrier” at the respective locations.
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01 31 00 – NOTICE TO PROCEED
01 31 00 – NOTICE TO PROCEED
The Contractor shall accomplish the following items prior to being issued a Notice to Proceed:
1. Attend City Pre-Construction Meeting with the Engineer. Attendees shall include the Contractor, Contractor's Superintendent, and all Subcontractors.
2. Obtain favorable City review of Contractor’s Construction Base-Line Schedule, which shall be completed in accordance with the requirements of the Contract Documents.
3. Obtain favorable City review of Contractor’s Water Pollution Control Plan, and/or De-Water Operations Plan (if applicable) which shall be completed in accordance with these Contract Documents.
4. Obtain favorable City review of Contractor’s Traffic Control/Staging Plan completed in accordance with these Contract Documents.
5. Obtain favorable City review of Contractor’s Construction Sequence/Work Plan completed in accordance with these Contract Documents.
Upon completion of these items, and any other requirements as may be specified elsewhere in these Contract Documents, the Engineer will issue a Notice to Proceed to the Contractor. This Notice will establish the first chargeable day of the Contract. However, the City shall start charging contract days 21 calendar days following the date of the Contractor’s receipt of the Notice of Award letter, regardless of the Contractor's progress in completing all the items specified above and/or elsewhere within the Contract Documents.
The Contractor shall notify the Engineer of its intent to begin work at least 24-hours prior to beginning work by calling (408) 586-3304. Once work begins, notification must be made only if work is delayed or suspended.
END OF NOTICE TO PROCEED
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01 33 00 – LIST OF SUBMITTALS
01 33 00 – LIST OF SUBMITTALS
Refer to the General Conditions, Technical Provisions, and elsewhere within the Contract Documents regarding the Submittal requirements and required Submittals for this Work. The list of submittals shall include, but is not limited to the following:
ITEM DESCRIPTION Refer to
Section:
TIME FOR CITY
REVIEW
( WORKING DAYS)
1. Base-Line Schedule 01 00 00 10
2. USA Tag & Number 00 72 13 5
3. Schedule of Values 00 72 13 10
4. Construction Water Permit 01 00 00 10
5. Record Drawing 01 00 00 10
6. Construction Work Plan 01 31 00 10
7. Portable Changeable Message Sign Location E-13 5
8. Construction Notices/ List of Addresses E-01 5
9. Traffic Control/Staging Plans E-03 10
10. Paving/Grinding/Surfacing Plan E-09 10
11. Existing Site photos/ Video E-15 &
01 00 00
5 12. Hot Mix Asphalt Mix Design, Material, Truck
Delivery Tickets, and Certificate of Compliance
E-07 5
13. Cold Milling Disposal Delivery Tickets E-09 5
14. Water Pollution Control Plan E-05 10
15. Concrete Mix Design, Material, Truck Delivery
Tickets, and Certificate of Compliance
E-10 5
16. Detectable Warning Surface E-10 5
17. Traffic Marking Material, and Certificate of
Compliance
E-12 5
18. Roadside Signage Material E-12 5
19 Lead Compliance Plan E-12 10
20 Proposed Truck Route/Haul Route E-03 5
22 Root Barrier and Header Board E-22 5
23 Traffic Signal Modification E-21 5
Contractor shall provide Certificate of Compliance (COC) for all relevant items shown in Exhibit “A”.
END OF LIST OF SUBMITTALS
38077.00180\29080232.10 C2
CERTIFICATION PAGE
ENGINEER’S CERTIFICATIONS :
These Technical Specifications have been prepared for City of Milpitas, for the following project:
2024 Street Sealing Project – Phase 2
The documents have been prepared by, or under the direct supervision of the following design Professional Engineer(s), licensed in the State of California:
Jacob Schramm, PE - REGISTERED CIVIL ENGINEER DATE: March 7th, 2025 REVIEWED BY:
06/30/2026
C95909
Jacob Schramm
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02 00 00 – TECHNICAL PROVISIONS
02 00 00 – TECHNICAL PROVISIONS
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E-01 MOBILIZATION
E-01 MOBILIZATION
PART 1 - GENERAL
1.1 OBJECTIVES
Mobilization shall conform to the applicable provisions in Section 9-1.16D, “Mobilization”, of the State Standard Specifications.
1.2 WORK INCLUDED
a) Mobilization and demobilization
b) Preparatory work and activities those necessary for the movement of personnel, equipment, supplies, and incidentals to the job site c) Establishment of all offices, building, trailers, and other facilities necessary for work on the project
d) Submittals, bonding and insurance requirements
e) Public notifications in English and Spanish
f) Contacting and notifying utility companies
g) Fabricating and installing project identification signs h) Private property owner agreement for storage facilities i) All other work and activities which must be performed or costs incurred prior to beginning work on the various contract items on the project site
1.3 REFERENCES
a) Cal/OSHA – California Division of Occupation Safety and Health b) Underground Services Alert (USA)
1.4 MEASUREMENT AND PAYMENT:
a) The contract Lump Sum price paid for “Mobilization (5% Maximum)” shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for doing all work involved in mobilization as specified herein. The total lump sum shall not exceed 5% of the total Base Bid, any amount in excess of 5% shall be paid with the release of retention payment.
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E-01 MOBILIZATION
i. Partial payment for Mobilization shall conform to Public Contract Code 10264. The City will make partial payments for the mobilization costs of a contract subject to this chapter, not to exceed the following:
ii. (When 5 percent of the original contract amount is earned, 50 percent of the amount bid for mobilization, or 5 percent of the original contract amount, whichever is lesser, may be paid. iii. When 10 percent of the original contract amount is earned, 75 percent of the amount bid for mobilization or 7.5 percent of the original contract amount, whichever is lesser, may be paid. iv. When 20 percent of the original contract amount is earned, 95 percent of the amount bid for mobilization, or 9.5 percent of the original contract amount, whichever is lesser, may be paid. v. When 50 percent of the original contract amount is earned, 100 percent of the amount bid for mobilization, or 10 percent of the original contract amount, whichever is lesser, may be paid. vi. Upon completion of all work on the project, payment of any amount bid for mobilization in excess of 10 percent of the original contract amount will be paid.
PART 2 - (NOT USED)
PART 3 - EXECUTION
3.1 MOBILIZATION
a) Mobilization shall consist of preparatory work and activities listed in Part
1.1 above.
b) Ensure that adequate existing sanitation facilities are available or the Contractor shall provide and maintain adequate sanitation facilities. All wastes and refuse from sanitary facilities provided by the Contractor’s operations shall be disposed of away from the site in accordance with all laws and regulations pertaining thereto.
c) Mobilization shall also include demobilization upon completion of work and cleanup of the site.
d) Provide all labor, materials, equipment and incidentals to prepare the site for the timely start and efficient completion of all work. This includes obtaining all necessary licenses and permits, providing required submittals including but not limited to a detailed project schedule. e) Notify all existing utility companies shown on the Drawings as first order of work, in writing and by telephone call
END OF SECTION
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E-02 NEIGHBORHOOD NOTIFICATION
E-02 NEIGHBORHOOD NOTIFICATION
PART 1 - GENERAL
1.1 WORK INCLUDED
a) Maintenance of Access and Public Notification:
i. Vehicular access shall be maintained at all times to all existing driveways within the project site. Pedestrian access and circulation that is fully wheelchair accessible shall be maintained by the Contractor throughout the project area. No closure of any street, driveway, or right of way may occur without written authorization from the Engineer. Advance Public Notification:
ii. Two weeks and 48 hours prior to beginning any Work, the Contractor shall provide approved Construction Notices as approved by the Engineer, to all residents, businesses, property owners, tenants and applicable parties within 300 feet and or adjacent to the project area.
I. Specify the expected date for start of construction, a general description of the construction activity to take place, expected duration of the activity, and the name, address, 24-hour telephone number of the Contractor and project website information.
II. Provide updated notices prior to beginning of major construction activity, including start of construction, concrete flatwork, pavement grinding, pavement base repair, and pavement
overlays.
III. The Contractor shall provide a copy of the notice for review and approval to the Engineer. Refer to the Submittal requirements in General Conditions.
IV. The Contractor shall provide the Engineer with a list and a map of the street addresses where the notices will be posted and/or mailed.
V. The Contractor shall provide additional notification to properties abutting work areas for curb ramps and sidewalk replacement.
VI. The Contractor shall provide copies of distributed approved Construction Notices to the Engineer.
iii. The contractor shall create and maintain a live update Website to provide construction activity updates for all project streets, current schedules, and contractor and City contact information. The Engineer shall approve website information format.
b) NO PARKING SIGNS/TOWING:
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i. The contractor’s construction activities shall minimize on-street parking restrictions. Reasonable on-street parking supply shall be made available within 500 feet of a no-parking restriction, unless otherwise approved by the Engineer.
ii. The Contractor shall provide "No Parking" signs with day of the week and work hours written out or properly abbreviated with 3 or 4 letters; the month shall be written out or properly abbreviated with 3 or 4 letters; date or dates of restriction shall be listed completely; the beginning and ending times shall be clearly listed on the sign.
iii. Signs shall be mounted such that the words, “No Parking” are at an elevation at least 3 feet and not more than 7 feet above the adjacent flow line. Signs may be tied with string to trees and power poles, taped to existing sign poles, or mounted to stakes or barricades as provided by the Contractor. The Contractor shall also include on the backside of the mounting stakes or barricades a current copy of the Construction Notice. The signs shall be placed as needed to control the parking of cars within the construction zone and shall be placed at a maximum spacing of sixty (60) feet.
iv. Signs shall be posted and maintained by the Contractor for a period of 72 hours prior to the restrictions becoming effective. The Contractor shall promptly reset or replace all damaged and defective signs. Upon completion of work in each area, all signs, stakes, and barricades shall be promptly and completely removed by the Contractor.
v. The Contractor shall be fully responsible for adequate removal of all parked cars. All vehicle removal shall be coordinated by the Contractor with the Police Department. The Contractor shall notify the Police traffic sergeant upon posting of the parking restrictions for a particular street and when the signs are removed. For removal of parked vehicles, the Contractor shall notify the Police traffic sergeant not less than 2 hours prior to the needed removal with the address nearest the parked vehicle, make, model, color, and license number. The City shall not be responsible for any delay or additional cost associated with the removal of parked cars which obstruct the construction operation.
vi. If a vehicle owner successfully contests a towing citation in court, and their citation is dismissed for causes related to the Contractor’s failure to perform the requirements of this section, the Contractor shall reimburse the City for the cost of any claims associated with the towing citation.
vii. The following shall also be contacted by the Contractor and made aware of the intended construction activities 5 days, and 48-hours, prior to planned construction activities. Confirmation of notifications shall be submitted to the Engineer.
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Contact Telephone
Number
Milpitas Police Department (408) 586-2400
Milpitas Fire Department (408) 586-2800
Contact the following only when work activities may affect Valley Transportation Authority (VTA)
Superintendents Control Center: (408) 546-7616
Long Term bus route closure or detours: (408) 321-7062
Bus Stop closure or relocations: (408) 952-4106
Safety Operator: (408) 546-7970
Central Dispatch - Busing (408) 546-7667
Light Rail (#1) (408) 321-7036
Light Rail (#2) (408) 546-7608
Alameda County Transit (AC Transit)
AC Transit (510) 891-4777
Waste Pick-up
Milpitas Sanitation (garbage collection): (408) 988-4500 City of Milpitas Solid Waste Coordinator: (408) 586-3353 Post Office Milpitas Branch
U.S. Post Office (408) 262-0860
viii. The Contractor shall provide the City with written proof of notification of the parties listed above by listing all parties contacted, the names of those contacted, and the dates the contacts were made.
ix. General: Schedule operations to minimize disruption of access to private property.
x. Notice to Residents: Prior to blocking access to any private driveway or parking lot entrance, or impacting parking, notify the resident or business owner or tenant of pending closure and allow resident to remove vehicles.
xi. Nights: During non-working hours no driveway, house, parking lane, or parking lot shall be denied access to a public roadway.
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c) Postal Service Coordination:
i. Prior to starting any construction activities, the Contractor shall contact the Milpitas branch of the U.S. Post Office to provide notice of the construction work, and to coordinate to ensure no stoppage of mail delivery due to the work.
ii. The Contractor shall be responsible to ensure the work operations do not interrupt, impede, or stop mail delivery services to Milpitas residents, business or others. The Contractor shall provide temporary mailboxes or other services and facilities as necessary to ensure the mail delivered and not affected by the work. iii. Notice shall be given for general construction activity in an area as well as specific activities, which will, in any way, inconvenience the resident/property owner or affect their operations or access to their property.
d) Waste Pick-up:
i. The Contractor shall not impede or impair waste haulers, recycling operations and buses within the project area. It is the Contractor’s responsibility to determine which waste haulers, recycling operators and buses are scheduled to work in the project area and to develop a project schedule that will not impede or impair their operations.
ii. The Contractor shall install and maintain a 24-hour telephone for project information and questions. The Contractor shall check for messages at least once every twelve hours, seven days a week, including weekends and holidays. The Contractor shall respond promptly to all calls.
iii. Failure to comply with the above notification requirements could result in cancellation by the Engineer, of the day’s work. No extension of time or additional cost will be granted for delays to the Contractor caused by any work cancellations due to
Contractors failure to comply with the requirements of this Section. e) Encroachment Permits: Contractor shall comply with required encroachment permit conditions when working in permitting jurisdiction’s right of way.
1.2 MEASUREMENT AND PAYMENT
a. The contract Lump Sum price paid for “Neighborhood Notification” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in notifications to affected property owners, including preparing schedule notifications, making revisions to schedule per City comments, preparing draft and final flyers, notifying owners of parking impacts, postage, deliveries, posting of “No
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Parking” signs, maintaining access, creating and maintaining a live update website, providing temporary mailboxes, responding to questions from property owners, providing correspondences of all communications with property owners to the City, and all other work, as shown on the plans, as specified in the Standard Specifications, these Technical Specifications, and as directed by the Engineer.
PART 2 – (NOT USED)
PART 3 – (NOT USED)
END OF SECTION
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E-03 TRAFFIC CONTROL
E-03 TRAFFIC CONTROL
PART 1 – GENERAL
1.1 SUMMARY
a) The Contractor shall provide for safe movement of vehicular, bicycle, and pedestrian traffic, including persons with disabilities in accordance with the Americans with Disabilities Act of 1990 (ADA), through and around construction operations. Traffic control requirements set forth herein are the minimum requirements imposed. The Contractor shall be solely responsible for providing all necessary protective measures. b) The Contractor shall supply and install traffic control devices including, but not limited to, warning, regulatory, and guide signs, equipment, pavement delineation, and flaggers in accordance with Section 12, “Temporary Traffic Control,” of the Standard Specifications. The Contractor shall prepare and submit Traffic Control/Staging/Detour plans for the Work. Contractor shall be responsible for submitting traffic control plans to Caltrans for any work within Caltrans right-of-way. Caltrans requires up to 60 days to approve and review an Encroachment Permit application.
c) All temporary traffic control plans including temporary pedestrian and bicycle access plans submitted by the Contractor shall conform to California Manual of Uniform Traffic Control Devices (CA MUTCD) – Latest Edition.
1.2 DESCRIPTION OF WORK
a) Work Included:
i. At all times, provide safe and adequate passage for vehicular and pedestrian traffic through, around, and adjacent to all construction operations by use of detours, bridging, backfilling, paving, traffic barriers or other favorably reviewed means.
ii. Establish and maintain detours and conduct construction operations in such a manner as to minimize hazard,
inconvenience, and disruption to the public.
iii. Provide for protection of pedestrians & cyclists and separation of pedestrians & cyclists from construction operations at all times. iv. Direct, divert and detour traffic through, around and adjacent to construction operations in accordance with the latest California Manual of Uniform Traffic Control Devices (CA-MUTCD) as specified herein or in accordance with favorably reviewed TC&PBAC Plans. Revise the TC&PBAC Plans as necessary only with the favorable review of the Engineer.
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1.3 REFERENCES
a) Standard Plans and Specifications, California Department of Transportation, latest edition.
b) California Manual on Uniform Traffic Control Devices (CAMUTCD), California Department of Transportation, latest edition. c) Work Area Traffic Control Handbook, Building News Incorporated, P.O.
Box 3031, Terminal Annex, Los Angeles, California 90051.
1.4 SUBMITTALS
a) Traffic Control/Stage/Detour Plan:
i. The Contractor shall submit site-specific Traffic
Control/Staging/Detour Plan(s) stamped and signed by a licensed Professional Engineer/Traffic Engineer in the State of
California for City’s review and approval prior to issuance of Notice to Proceed. Plans shall be submitted to the Engineer a minimum of two (2) full Working Days prior to the Preconstruction Meeting or minimum of 14 calendar days prior to the Work. ii. The Plan(s) shall consists of a scaled aerial view drawing(s) in accordance with the latest version of the State of California Department of Transportation “Manual on Uniform Traffic Control Devices .” Copies or modified copies of the Manual of Traffic Controls for Maintenance and Construction Work Zones or the Work Area Traffic Control Handbook or any other type of copied standardized traffic control plans shall not be acceptable. iii. The Plan(s) shall show all traffic control measures and devices on the actual street(s) as it relates to the site conditions and to the safe movement of traffic for, but not limited to, lane closures, detours, no parking areas, signing program for construction, access to private property and business establishments, pedestrian traffic, railroad crossings, transit routes, loading areas, the proposed routing of the construction vehicles, hours required for access and the safe guards and procedures necessary to carry out the Work. The Plan(s) shall also indicate, but not be limited to, placement and type of warning signs, delineators, temporary lighting, devices, flaggers persons, construction vehicles and equipment staging, work hours and schedule.
iv. Agency specific traffic control plans may be required to obtain encroachment permits or permits to construct.
b) Grading/Grinding/Surfacing Plans
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i. The Contractor shall submit grading, grinding and surfacing plans.
The Plan(s) shall show all areas of work for major construction activities, expected durations, and major traffic control elements.
Plans must be consistent with Contractor schedule and traffic control plans.
c) Lane Closure Restrictions:
i. For any lane closure, the Contractor shall submit Traffic Control and Detour Plan for City’s review and approval. The Plan(s) shall provide for the orderly and predictable movement of all traffic and pedestrians and for such guidance and warning as needed to ensure the safe and informed operation of individual elements of the traffic stream. Contractor shall not detour traffic or close lanes until the traffic control plan has been approved by the Engineer. ii. The Contractor shall keep a minimum of one 11-foot wide lane of traffic open in each direction during working hours. Attention is directed to these Contract Documents regarding specific traffic lane closure restrictions.
iii. Additional lane closure restrictions may be imposed if there is evidence that excessive inconvenience to the public is observed during construction.
iv. For narrow roadways where a minimum of one 11-foot wide lane of traffic open in each direction is not feasible, contractor shall maintain through traffic with flagging or submit a roadway closure plan with temporary detour for approval by the Engineer. v. For all lane closures or when an entire segment of roadway in one-direction is closed, flashing arrow boards, detour signs, and flaggers are required at all times to direct traffic into the opposite direction.
vi. Contractor shall provide safe passage to properties along the road or street affected by lane closure at all times. Temporary crossings shall be provided and maintained in good condition.
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vii. Contractor shall not place any construction signs, delineators, cones, or any other construction type signs or appurtenances in the lane to be closed before 9:00 a.m. and after 4:00 p.m unless otherwise approved by the Engineer. Lane closure hours for residential streets may be extended from 8:00 a.m. to 5:00 p.m.
These requirements are subject to modification by the City Engineer. Contractor is required to coordinate with the City regarding potential night and/or weekend work and restrictions. viii. For properties with only one driveway access, Contractor shall not close access to driveways for more than four (4) hours. Driveways shall not be closed before 8:00 AM or after 4:00 PM. Contractor shall closely coordinate with the property owners and notify the property owners for impacts to their driveways.
1.5 Measurement and Payment:
a) The contract Lump Sum price paid for “Traffic Control (10% Maximum)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in Traffic Control, complete in place, including preparation and approval process for Traffic Control/Staging/Detour Plans and Truck/Haul Route plans, warning devices, beacons, flaggers, temporary signs and posts, temporary asphalt tapers, removal of asphalt tapers and temporary striping when no longer required, temporary pavement delineation, maintain access for emergency vehicles at all times, maintaining access to garbage disposal trucks, USPS and other delivery trucks, detours for sidewalk closures, signage, placing, removing, storing, maintaining, moving to new locations, re-sequencing to accommodate project schedule, replacing and disposing of the components of the traffic control system, and traffic control devices including any traffic control needed for night time work, as specified in the State Standard Specifications, these Technical Provisions, and as directed by the Engineer. Total lump sum shall not exceed 10% of the total Base Bid.
PART 2 – PRODUCTS
2.1 CONSTRUCTION SIGNS
a) Construction signs shall conform to the standards of the Standard Plans and Specifications and the CAMUTCD.
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b) Temporary warning signs in construction areas shall have a black legend and border on an orange background. Color for other signs shall follow the standard for all highway signs.
c) All signs used during hours of darkness shall be retroreflective. d) After construction, Contractor to restore the sidewalk, landscape, or other existing facilities at the locations of the Construction area signs. Payment for sidewalk of landscape restoration shall be considered included in the construction area sign/traffic control pay items.
2.2 TRAFFIC CONTROL DEVICES
a) General: Traffic control devices shall conform to the standards of the Standard Plans and Specifications and the CAMUTCD.
b) Cones or Delineators:
i. Cones or delineators shall consist of cylindrical or cone shaped plastic devices, which shall be 18 inches to 48 inches in height. ii. Cones or delineators shall have a flexible base of suitable weight, which will ensure stability.
iii. Cones or delineators used during hours of darkness shall be affixed with retroreflective sleeves or be internally illuminated meeting the requirements of the CAMUTCD.
c) Barricades:
i. Barricades shall conform to the Standard Plans and Specifications and the CAMUTCD.
ii. Barricades used during hours of darkness shall be equipped with flashers.
d) Water-Filled Barriers:
i. Contractor has the option of installing water-filled barriers with the following requirements:
ii. Waterfilled barriers will be considered in lieu of temporary railings (Type K), upon a written request from the contractor along with proposed details, layout plan, temporary signing & striping and installation.
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iii. The water filled plastic barriers shall conform to “Plastic Jersey JB-32" or approved equal. (https://www.plasticjersey.com/or approved equal). Contractor shall provide corner pieces and continuous longitudinal protection for pedestrians. Contractor shall install reflectors on the barriers. Contractor shall move barriers as needed for each stage of construction. Water-filled barriers may be relocated to subsequent stages of construction after the current stage is completed.
iv. Each barrier section shall have the capability of interlocking with other barrier sections when installed in a row through the use of independent clevis devices at the top of the barrier and a built-in male/female coupling at the bottom of the barrier. Each barrier section shall have ports for ground mounting.
v. Each barrier section shall have 2 drain plugs located on opposite sides of the barrier to ensure the separation of workers from traffic when draining barrier sections.
vi. Each barrier section shall have forklift holes to allow fully filled sections to be lifted and relocated.
vii. Barrier sections shall be colored either orange or white. When installed in a row, the sequence of colors shall be 4 white, 1 orange unless otherwise specified in the drawings.
e) Other Traffic Control Devices: The project will include portable changeable message signs, concrete barriers or water-filled barriers, temporary pedestrian bridges, business directional signs, and other devices per the Contractor's approved TC&PBAC Plans.
2.3 TEMPORARY STEEL PLATES
a) When approved by the Engineer, the Contractor may use steel plate bridging in-lieu of backfill and temporary asphalt where the roadway surface is to be opened to traffic. All steel plates shall be without deformation. Inspectors shall determine the trueness of steel plates by using a straight edge and shall reject any plate that is permanently deformed.
b) Trench plates shall be coated with Antiskid type surface meeting State Standard Specifications of a nominal Coefficient of friction of 0.35 in accordance with California Test Method 342.
c) The following table shows the advisory minimal thickness of steel plate bridging required for a given trench width (A-36 grade steel, designed for HS20-44 truck loading per Caltrans Bridge Design Specifications Manual).
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i. Max Trench Width Minimum Steel Plate
Thickness (inches)
ii. 10 inches 1/2
iii. 1 feet 10 inches 3/4
iv. 2 feet 6 inches 7/8
v. 3 feet 4 inches 1
vi. 4 feet 1 inches 1-3/4
NOTE: For trench width spans greater than 4 feet 1 inches, a structural design shall be prepared, signed, and stamped by a California Registered Civil Engineer.
PART 3 - EXECUTION
3.1 DIVERTING & PEDESTRIAN TRAFFIC
a) Whenever construction operations obstruct the flow of pedestrian & bicycle traffic or present a hazard to pedestrians & cyclists, the Contractor shall take appropriate action to protect and separate pedestrians & cyclists from the work area and to direct pedestrians & cyclists to alternate routes.
b) Such action to protect pedestrians & cyclists may include placement of barricades between pedestrians & bicycles and the work areas, placement of warning signs, and provision of personnel as required to protect pedestrians & cyclists as conditions warrant.
c) Pedestrians and bicyclists will be protected at all times, 24 hours per day and seven days per week.
3.2 DIVERTING VEHICULAR TRAFFIC
a) Whenever construction operations obstruct the flow of vehicular traffic or present a hazard to vehicles operating in the vicinity of construction operations, the Contractor shall take appropriate action to warn, detour and otherwise protect approaching drivers and vehicles.
3.3 TRAFFIC CONTROL DEVICES
a) General:
i. Provide traffic control devices in sufficient quantities and types as required to provide safe and adequate traffic control.
ii. During hours of darkness approved lights shall be included, in proper working order, to illuminate signs and hazards and alert approaching traffic.
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iii. Provide and maintain barricades along all open trenches in contact with traffic.
iv. No work may begin on any day or at any time before traffic control devices have been placed, test driven and adjusted.
b) Placement:
i. Place all traffic control devices in accordance with the Standard Plans and Specifications, the CAMUTCD, and approved
TC&PBAC Plans.
ii. Adjust locations of devices to suit the conditions and circumstances of each detour situation. In all cases, place signs to most effectively convey their messages to approaching traffic. iii. The Contractor shall adjust and revise all traffic control devices if determined to be required by the City or Police Department. iv. The Contractor shall provide additional traffic control devices if required to maintain the safe flow of traffic through construction operation.
c) Maintenance of Devices: The Contractor shall maintain all traffic control devices, at proper locations, and in proper working order, at all times during construction operations and whenever a hazard resulting from Contractor's operations exists. The Contractor shall adjust and revise traffic control devices, placement, etc., to suit changing conditions around construction operations.
d) Removal of Devices: Traffic control devices shall remain in place at all times required to alert approaching traffic of upcoming hazards. After hazard has been removed, remove all traffic control devices. Remove signs or completely cover their messages.
3.4 SIGNAGE
a) All construction signs and other warning devices shall be provided by the Contractor and shall become the Contractor’s property after completion of the Contract. The Contractor shall refer to the current “Manual of Warning Signs, Lights and Devices for use in the Performance of Work Upon Highways” and the “Uniform Sign Chart” issued by the Department of Transportation, Division of Operations.
b) Signage shall not block any driveway or access to private/public properties owners at any time, unless instructed by the Engineer.
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c) If the Contractor fails to provide, is neglectful of or negligent in furnishing and maintaining warning and protective facilities and personnel as herein provided within eight (8) hours of being notified by the Engineer of the need for such, the City may furnish and maintain such facilities and personnel. In this event, the City may charge the Contractor therefore by deducting the cost of such facilities and personnel from progress payments due to the Contractor as such costs are incurred by the City.
3.5 FLAGGERS
a) General: The Contractor shall employ flaggers: As required for each specific detour.
i. At all locations on a construction site where barricades and warning signs cannot control the moving traffic.
ii. Flag persons shall be properly equipped and trained in accordance with “Instructions to Flagmen,” published by the California Department of Transportation.
iii. Flaggers and all personnel working near traffic shall wear hardhats, orange/red, or State approved fluorescent green vests or shirts.
iv. Flaggers shall guide traffic with an appropriate stop/slow sign. b) Placement: Where flaggers are required, they shall be logically placed in relation to the equipment or operation so as to give adequate warning and shall be placed in accordance with the Standard Plans and Specifications, the CAMUTCD, and the approved TC&PBAC Plan.
c) Warning Signs:
i. Place warning signs ahead of the flagger in accordance with the Standard Plans and Specifications, the CAMUTCD, and the approved TC&PBAC Plans. The distance between signs and the flagger shall be based on the posted traffic approach speed. ii. During hours of darkness, illuminate flagger stations such that the flagger will be clearly visible to approaching traffic. Lights for illuminating the flagger station shall comply with the Standard Plans and Specifications, the CAMUTCD, and the approved TC&PBAC Plans.
d) Equipment:
i. Provide flaggers with high-visibility safety apparel in accordance with the Standard Plans and Specifications, and the CAMUTCD at all times. Provide flaggers with hand signs in accordance with the Standard Plans and Specifications, and the CAMUTCD.
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ii. Provide flaggers with two-way radios for communication when necessary. Red flagsshall only be used for traffic control in emergency situations.
e) The Contractor shall comply with flagging, traffic handling equipment, and device requirements of Section 12, “Temporary Traffic Control,” of the State Standard Specifications with the exception of Section 12-1.04, “Payment”.
f) Flaggers and all personnel working near traffic shall wear hardhats, orange/red, or State approved fluorescent green vests or shirts. g) Flaggers shall guide traffic with an appropriate stop/slow sign.
3.6 NOTICE TO AGENCIES
a) The Contractor shall notify in writing all agencies having jurisdiction at least 48 hours, excluding holidays and weekends, prior to instituting any lane closure or detour. At the end of each day's work, the Contractor shall inform the ambulance services, police and fire departments of the status of all detours and/or lane or road closures that will be in effect on the next day.
b) List of Agencies/Adjacent Properties:
i. U.S. Postal Service
ii. Caltrans
iii. School District Transportation Office, as appropriate iv. VTA for bus services
v. City of Milpitas:
I. Fire Department
II. Police Department
III. Public Works Department - Engineering Departments
3.7 TEMPORARY HMA
a) If the transition taper will be overlaid with HMA that is not placed before opening to traffic and there is a grade difference of more than 0.004 foot, construct a temporary taper by placing HMA that complies with section 39-2.07. Remove the temporary HMA taper before constructing the transition taper.
b) If you do not complete placing the HMA surfacing before opening the area to traffic, you must:
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i. Construct a temporary HMA taper to the level of the existing pavement.
ii. Place HMA during the next work shift.
iii. Submit a corrective action plan that shows you will complete cold planning and placement of HMA in the same work shift. Do not restart cold planning activities until the corrective action plan is authorized.
3.8 OPERATION OF CONSTRUCTION VEHICLES AND EQUIPMENT
a) Construction Traffic and Vehicles: All inbound and outbound construction related traffic to and from the Site is restricted to public street(s) immediately adjacent to the Site.
b) Construction Parking: Construction vehicles and equipment parking is restricted to areas within the Site and other areas as determined by the City.
c) Most City streets within Milpitas have a 4-ton weight limit. A Truck Route/Haul Route Plan approved by the City is required for use of overweight equipment within the City of Milpitas. Refer to Appendix "A" or the City's Webpage for the City's approved Truck Route Map. d) The Contractor is advised that ALL Vehicle Code regulations apply to construction equipment in operation on this project, and the City will enforce all Vehicle Code regulations with respect to use of construction equipment operating on City Streets and Public Rights of Way. i. Extralegal Loads - Equipment over 8'6" wide, 14' tall, and 80,000 pounds gross or over on axle weights. A City of Milpitas Transportation Permit is required for extralegal loads (oversize and overweight). It contains a specific route of travel for that single load. A Haul Route would be for major on-haul/off-hauls of material that bring in a large number of trucks at one time. Refer to the Appendix "A" for a copy of the City of Milpitas
Transportation Permit. The Permit shall have been issued, and shall be in possession when operating such vehicles within the City of Milpitas. Drivers shall maintain strict adherence to the routes specified on the City approved Haul Route.
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ii. Special Equipment (SE) Plates & Slow Moving Vehicle Emblems - Refer to Appendix "A" and the Vehicle Code for more information.
All non-street legal construction equipment operating on a City Street or right-of-way shall display a Special Equipment (SE) plate when operating outside of the work zone, or traffic control cone zone.
iii. Load Regulations - Contractors are cautioned to ensure proper loading and on haul/off-haul procedures are followed.
I. Vehicles shall not be loaded to overweight
II. Off-haul loads for disposal or recycling shall be covered III. All loads shall be properly secured with the correct number of tie-downs or chains IV. All vehicles leaving the construction site shall be clean. No material or debris shall be on the vehicle body or stuck to its tires.
3.9 BUS STOPS
a) Contractor is responsible for maintaining continuous service to all bus stops.
b) The Contractor shall coordinate with the Valley Transportation Authority (VTA) when the Work is at or near the Bus Stop. The work shall not impede or close a bus stop unless coordinated first with VTA. The Work shall not cause unsafe conditions for bus riders or cause buses to release riders in the street or within the construction zone.
c) As the first order of work, Contractor to meet with the VTA, and will submit for approval an exhibit indicating the relocation of bus stop. Sketch to include temporary bench and sign to be installed.
3.10 EMERGENCY VEHICLE ACCESS THROUGH DETOURS
a) During construction in or adjacent to roadways in the project site, maintain at least one lane open in each direction of the road to allow emergency vehicle access for police, fire, and ambulance to the project vicinity.
b) During all detours and/or street closures provide for 10' wide clear for movement of emergency vehicles through the work area.
c) When temporary traffic control is performed by flaggers, they shall be instructed to give immediate passage to emergency vehicles with active lights or sirens.
d) It is essential that the Contractor's work and equipment do not impede ingress and egress from any fire or police station, or hospital, to other areas of their service area.
3.11 ACCESS TO PRIVATE PROPERTY
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a) General: Schedule operations to minimize disruption of access to private property.
b) Notice to Residents: Prior to blocking access to any private driveway or parking lot entrance, or impacting parking, notify the resident or business owner or tenant of pending closure and allow resident to remove vehicles. c) Nights: During non-working hours no driveway, house, or parking lot shall be denied access to a public roadway.
b. DETOURS DURING NON-WORKING HOURS
a) General: The Contractor shall not be permitted to maintain any lane closure or road closure during non-working hours without first obtaining written approval of the Engineer.
b) Restoration of Pavement:
i. During non-working hours restore travel lanes to their original alignment and configuration by means of backfilling and temporary pavement or bridging in accordance with City Standards and approved by the City.
ii. Place warning signs conforming to the Standard Plans and Specifications, and the CAMUTCD at uneven temporary
pavement or bridging.
3.12 PUBLIC CONVENIENCE AND SAFETY
a) The Contractor shall conduct his operations as to cause the least possible obstruction and inconvenience and maximum safety to both vehicular and pedestrian traffic.
b) The Contractor shall bear full responsibility for maintaining all traffic control include, but not limited to, signage, equipment and devices and maintaining traffic circulation at all times during the Work. c) It is imperative that field traffic control be handled in such a manner as to adequately and safely direct all traffic movements in the construction area. The Contractor shall not be allowed to proceed with construction at any time when traffic control measures are inadequate to the field conditions, in the opinion of the Engineer. Additional traffic control measures may be required according to field conditions at the Contractor’s expense.
d) At their own expense, whenever the Contractor’s operations creates a condition potentially hazardous to the public or traffic, the Contractor shall furnish additional traffic control measures and devices by any means necessary to provide adequate warning to the public of any dangerous conditions to be encountered.
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e) Contractor shall maintain an accessible corridor that provides at least one safe path of travel for all pedestrians at all times for the duration of the project. If any phase of the work obstructs an existing route, a detour must be provided.
f) Public streets and sidewalks shall be immediately vacated and returned to public use when the use thereof is no longer necessary for the construction work.
g) There shall be no period in which signs that are to be replaced or relocated are not displayed to the public. The Contractor shall install temporary signs and posts prior to removal, replacement, or relocation of existing signs to notify road users of regulations and provide warning and guidance needed for the uniform and efficient operation of all elements of the traffic stream in a manner intended to minimize the occurrences of crashes. Temporary signs shall follow CA MUTCD guidelines and shall be approved by the Engineer prior to installation.
3.13 SIDEWALKS, DRIVEWAYS, AND ADA RAMPS
a) PARKING RESTRICTIONS
i. Post approved "NO PARKING – CONSTRUCTION TOW-AWAY
ZONE" signs at all locations necessary to establish work areas and detour traffic. Obtain City permission for all parking stalls closed or impacted.
ii. Signs: Signs shall read: "NO PARKING - CONSTRUCTION TOW-AWAY ZONE". Signs shall be placed at least 72 hours in advance ofrestriction.
3.14 TRENCH PLATES AND EXCAVATIONS
a) General: Install Trench Plates across all trenches and excavations in existing streets and at driveways when work is not in progress. Trench plates shall be in accordance with the Standard Plans and Specifications and the CAMUTCD and approved by the City.
b) Design of Trench Plates:
i. Bridging for vehicular traffic shall be of sufficient width to accommodate the required number of travel lanes.
ii. Trench plates shall be designed to support H-20 vehiculartraffic. iii. All bridging or trench plates shall be set flush with travel surface. c) Embed trench plates flush with the adjacent asphalt. d) No trench or holes shall be left open overnight. Use steel plates to protect open trenches overnight.
c. Temporary steel plate bridging
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a) When backfilling operations of a transverse or longitudinal excavation in the roadway cannot be properly completed within a work day, steel plate bridging with a non-skid surface and shoring shall be required to preserve unobstructed traffic and pedestrian flow. In such cases, the following conditions shall apply:
i. Steel plates used for bridging must extend a minimum of 12- inches beyond the edges of the trench.
ii. Steel plate bridging shall be flush with the roadway, and installed to operate with minimum noise or movement.
iii. The trench shall be adequately shored to support the bridging and traffic loads.
iv. Temporary paving with cold asphalt concrete shall be used to feather the edges of the plates, if plate installation by Method 2 described below, is used.
v. Bridging shall be secured against displacement by using adjustable cleats, shims, or other devices.
b) The Contractor is responsible for maintenance of the steel plates, shoring, asphalt concrete ramps, and ensuring that they meet minimum specifications.
c) Steel plate bridging and shoring shall be installed using either Method 1 or 2:
i. Method 1 – For speeds of 45 MPH or greater:
I. The pavement shall be cold planed to a depth equal to the thickness of the plate and to a width and length equal to the dimensions of the plate. Approach plate(s) and ending plate (if longitudinal placement) shall be attached to the roadway by a minimum of 2 dowels pre-drilled into the corners of the plate and drilled 2-inches into the pavement. Subsequent plates are to be butted and tack welded to each other.
ii. Method 2 – For speeds less than 45 MPH:
I. Approach plate(s) and ending plate (if longitudinal placement) shall be attached to the roadway by a minimum of 2 dowels pre-drilled into the corners of the plate and drilled 2-in into the pavement. Subsequent plates are to be butted and tack welded to each other. Fine graded asphalt concrete shall be compacted to form ramps, maximum slope 5 percent with a minimum 12-inch taper to cover all edges of the steel plates. When steel plates are removed, the dowel holes in the pavement shall be backfilled with either graded fines of asphalt concrete mix, concrete slurry, epoxy or an equivalent that is satisfactory to the Engineer.
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3.15 TEMPORARY TRAFFIC LANES
a) Temporary traffic lanes shall be at least 10 feet wide, one lane open in each direction. Provide an additional 2 feet of clearance from curbs. The length of temporary lanes should be limited to the area under construction and the distance necessary to divert traffic in accordance with the Standard Plans and Specifications, the CAMUTCD, and the approved TC&PBAC Plans.
b) Turn lanes shall not be impacted without approval from the City.
3.16 TEMPORARY PAVEMENT DELINEATION
a) Temporary pavement delineation shall be furnished, placed, maintained, and removed in accordance with the provisions in Section 12-3, “Temporary Traffic Control Devices,” of the State Standard Specifications and these Technical Provisions. Nothing in these Technical Provisions shall be construed as to reduce the minimum standards specified in the Manual of Traffic Controls published by the Department of Transportation. b) Whenever the work causes obliteration of any or all of the pavement delineation, temporary or permanent delineation shall be in place prior to opening the traveled way to public traffic. Lane line or centerline and limit line (e.g. stop bars or crosswalks) pavement delineation shall be provided at all times for traveled ways open to public traffic.
c) All work necessary, including any required lines or marks, to establish the alignment of temporary pavement delineation shall be performed by the Contractor. Surfaces to receive temporary pavement delineation shall be dry and free of dirt or loose material. Temporary pavement delineation shall not be applied over existing pavement delineation or other temporary pavement delineation. Temporary pavement delineation shall be maintained until replaced with a new pattern of temporary pavement delineation or permanent pavement delineation.
d) Temporary pavement markers and removable traffic type tape which conflicts with a new traffic pattern or which is applied to the final layer of surfacing or existing pavement to remain in place shall be removed when no longer required for the direction of public traffic, as determined by the Engineer.
e) Whenever lane lines and centerlines are obliterated, the minimum lane line and centerline delineation to be provided shall be temporary reflective raised pavement markers placed at longitudinal intervals of not more than 24 feet. The temporary reflective raised pavement markers shall be the same color as the lane line or centerline markers replaced. f) Temporary reflective raised pavement markers shall be placed in accordance with the manufacturer’s instructions and shall be cemented to the surfacing with the adhesive recommended by the manufacturer, except epoxy adhesive shall not be used to place pavement markers in areas where removal of the markers will be required
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d. Full compensation for conforming to the requirements of this section shall be considered as included in the prices paid for the contract items of work involved and no additional compensation will be allowed therefore.
3.17 STAGING AREAS
a) Provide staging areas for materials and equipment. Prior to the pre-construction meeting Contractor will provide a map exhibit of the proposed staging area as a formal submittal to the City. Water Pollution Control will be required at off-site staging areas.
b) The Contractor shall not phase the work to block vehicular access to an entire neighborhood at the same time. The Contractor shall allow for residents to have the option of parking no more than one block away while their street is being worked on.
c) If temporary closure of driveways is necessary to perform the work, the Contractor shall not stage the work to prohibit vehicular access to driveways for more than 4 hours.
3.18 VIOLATION OF WORKING TIME LIMIT & LATE PICK-UP TRAFFIC CONTROL a) A violation of the working time limitations for traffic control (late pick-up of controls) as set forth in these Contract Documents may result in the Engineer to issue a written notice to Stop Work. The Stop Work shall be imposed on the Contractor at the start of the next or following working day after issuance of the Stop Work. The Stop Work will not be lifted, and the Contractor shall not resume work until after the Contractor assures the Engineer, in writing, that there will not be a reoccurrence of the working time violation and provides a plan for how operations will be conducted in the future to prevent such violation.
b) Further violations shall result in the Engineer to notify the Contractor in writing that there will be a price reduction charge for each incident in accordance with the following table. This incident price reduction charge may be deducted from any money due the Contractor. This price reduction will not be considered a penalty but will be a price reduction for failure to perform traffic control in compliance with these Contract Documents.
c) An incident is defined as any violation up to 30 minutes in duration. Each 30 minutes or increment thereof will be considered as an incident. A price reduction will be assessed for each successive or cumulative 30 minute period in violation of the working time limitations, as determined by the Engineer. The price reduction for each incident will increase at a progressive rate starting with $150 for the second incident and increasing to $1,200 for the fifth and subsequent incidents in accordance with the following schedule.
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d) A 15-minute grace period will be allowed at the beginning of the second incident on the project before the price reduction is applied. This 15- minute grace period applies only to the second incident. The number of incident charges will be accumulative throughout the duration of the Contract.
END OF SECTION
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E-04 MONUMENT REFERENCING (INCL. PRE-CONSTRUCTION AND POST CONSTRUCTION) E-04 MONUMENT REFERENCING (INCL. PRE-CONSTRUCTION AND POST
CONSTRUCTION)
PART 1 – GENERAL
1.1 OBJECTIVES
a) The Contractor shall adjust and relocate existing utility pipes, conduits, manholes, pullboxes, valves, and other related facilities shown on the plans that are interfering and conflicting with work such that the minimum clearance required between utility lines and facilities are met. Any existing utility (including drainage facilities regardless of size or type) identified for removal shall be completely removed, and proper reconnection to the existing or new facilities shall be provided as directed by the City. b) Any work required to remove, relocate, or disposal of existing utility facilities as need to complete the Work specified in the Contract Documents, which are not included in the Bid Schedule, shall be considered as included in the various items of work and no additional compensation shall be allowed.
c) Irrigation Facilities
i. Keep existing irrigation facilities in place that are described to be removed, relocated, or modified until the Engineer determines they are no longer needed.
ii. Maintain the existing water supply. If the existing water supply is interrupted for more than 3 consecutive days, provide an alternative water supply. Water the existing plants in the area irrigated from that water supply, including those maintained by the Department, as necessary to maintain healthy plant growth. iii. If you and the Department irrigate existing plants from the same water supply, furnish enough water to the Department for watering plantings on and off the highway as necessary to maintain a healthy condition through Contract acceptance.
iv. If you damage irrigation facilities not to be removed:
I. Remove and dispose of them.
II. Repair and replace damaged facilities within 10 days.
III. Use similar commercial-quality components from the same manufacturer or components that are compatible with the existing irrigation system if authorized.
IV. After completing the repair or replacement of the facilities, perform an operational test in the presence of the Engineer. If you repair or replace the remote control valves, conduct the test with the irrigation controller in the automatic mode.
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E-04 MONUMENT REFERENCING (INCL. PRE-CONSTRUCTION AND POST CONSTRUCTION) d) Notify the Engineer:
i. At least 4 business days before shutting off the water supply to any portion of the existing irrigation system
ii. Immediately after restoring the water supply to any portion of the existing irrigation system
e) Survey Monuments: Protect survey monuments on and off the highway.
Upon discovery of a survey monument not identified and located by the Department, immediately: Stop work near the monument and notify the Engineer. Do not resume work near the monument until authorized.
MONUMENT PROTECTION
a) Preservation: Existing Monuments must be preserved, in accordance with State Business & Professions Code section 8771. Do not disturb survey monuments that may/may not be shown on the plans including railroad spikes, brass tacks, nails or other markers set by surveyors, and advise the City upon discovery of these monuments to determine how they shall be preserved. Exercise caution when working around monuments so as not to disturb them. During milling, grinding, excavation or other operations, work around existing survey monuments unless specifically otherwise indicated on the Plans.
b) Corner Record: All existing survey monuments will be referenced prior to construction and corner record will be submitted to the City and the County Surveyor.
i. To comply with this Section, engage the services of a Licensed Land Surveyor to reference all monuments and file timely Pre- and Post-Construction Corner Records with the City and the County Surveyor.
ii. Referencing monuments requires setting at least two control points out side of the work area, with a bearing and distance measured from each control point to the monument to be
preserved, by a field land survey crew using a total station survey equipment, or approved equal, under the direction of California Licensed Land Surveyor.
iii. Prepare corner record, submit corner record to the City and the County Surveyor.
iv. Obtain from the County Surveyor and submit to the City and/or County written acceptance of the required Pre-Construction Corner Records before construction commences on the project
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E-04 MONUMENT REFERENCING (INCL. PRE-CONSTRUCTION AND POST CONSTRUCTION) c) Discovery & Notification: Contractor will review the site thoroughly to identify monuments in the work area. If existing survey monuments are encountered in the area of work which are not shown on the plans, Contractor will notify City and/or County immediately. Contractor will not proceed with work near the survey monument until the Contractor’s Licensed Land Surveyor has established reference points to preserve the location of the monument, in accordance with State Business & Professions Code section 8771.
d) Record of Survey and Replacement: If a monument is disturbed or damaged during adjusting, milling or other operations, the Contractor shall be responsible for all costs associated with the reestablishment of the monument including but not limited to surveying performed by a Licensed Surveyor and filing documents with City and/or County and constructing the new monument. A Record of Survey must be submitted to the City and the County Surveyor for review and approval. Conform to City and County requirements for installation of new monuments. e) AutoCAD: Provide the City with an AutoCAD DWG file for the monument survey.
1.2 REFERENCES
a) Standard Plans and Specifications, California Department of Transportation, latest edition.
1.3 MEASUREMENT AND PAYMENT
a) The contract Lump Sum price paid for “Monument Referencing (Incl.
Pre-Construction and Post-Construction)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in monument referencing (pre-construction) and monument referencing (post-construction), submitting corner records with Santa Clara County, paying fees, providing drawings, complete in place, as shown in plans, as specified in these Special Provisions, and as directed by the Engineer.
b) Full compensation for work involved in the relocation of existing utility facilities due to interference or conflicts with work, in maintaining the minimum vertical or horizontal clearances, or in the reconnection of existing facilities to new facilities including providing necessary tools, materials, equipment and coordination shall be considered as included in the contract prices paid for various items of work involved, and no additional compensation shall be allowed.
PART 2 – (NOT USED)
PART 3 – (NOT USED)
END OF SECTION
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E-05 PREPARE WATER POLLUTION CONTROL
PROGRAM
E-05 PREPARE WATER POLLUTION CONTROL PROGRAM
PART 1 – GENERAL
1.1 SUMMARY
a) In compliance with the State and Federal regulations on construction storm water management and urban runoff pollution control, no pollutants will be allowed to enter the storm drainage system. The Contractor shall exercise every reasonable precaution to protect storm drains, inlets, drainage swales, streams, lakes, reservoirs, bays, and coastal waters from pollution with fuels, oils, bitumen’s, calcium chloride and other harmful materials and shall conduct and schedule operations so as to avoid or minimize muddying and silting of streams, lakes, reservoirs, bays and coastal waters. Care shall be exercised to preserve roadside vegetation beyond the limits of construction.
1.2 DEFINITIONS
a) active area: Area where soil-disturbing work activities have occurred at least once within 15 days.
b) construction phase: Phase that includes (1) the highway construction phase for building roads and structures, (2) the plant establishment, permanent erosion control establishment, and maintenance phase for placing vegetation for final stabilization, and (3) the suspension phase for suspension of work activities or a winter shutdown. The construction phase starts at the start of job site activities and ends at Contract acceptance.
c) inactive area: Area where soil-disturbing work activities have not occurred within 15 days.
d) qualifying rain event: Storm that produces at least 0.5 inch of precipitation with a 48-hour or greater period between rain events. e) run-on: Water that originates off-site and flows onto the job site. f) storm event: storm that produces or is forecasted to produce at least
0.10 inch of precipitation within a 24-hour period.
1.3 OBJECTIVES
a) If the WPCP measures being taken by the Contractor are inadequate to control water pollution effectively, the Engineer may direct the Contractor to revise the operations and the water pollution control program. The directions will be in writing and will specify the items of work for which the Contractor's water pollution control measures are inadequate. No further work shall be performed on those items until the water pollution control measures are adequate as may be determined by the Engineer.
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b) The City will not be liable to the Contractor for failure to accept all or any portion of an originally submitted or revised water pollution control program, nor for any delays to the work due to the Contractor's failure to submit an acceptable water pollution control program.
c) The Contractor may request the Engineer to waive the requirement for submission of a written WPCP program for control of water pollution when the nature of the Contractor's operation is such that erosion is not likely to occur. Waiver of this requirement will not relieve the Contractor from responsibility for compliance with the other provisions of this section or local, State or Federal laws pertaining to water quality. Waiver of the requirement for a written program for control of water pollution will not preclude requiring submittal of a written WPCP program at a later time if the Engineer deems it necessary because of the effect of the Contractor's operations. The Contractor shall be responsible for briefing and assuring that all his subcontractors comply with Urban Runoff Pollution Prevention requirements including the installation and Best Management Practices.
The Contractor is advised that stop work notices and other penalties may be issued for noncompliance with storm water pollution discharge control requirements.
d) Unless otherwise approved by the Engineer in writing, the Contractor shall not expose a total area of erodible earth material, which may cause water pollution, exceeding one acre for each separate location, operation or spread of equipment before either temporary or permanent erosion control measures are accomplished.
e) Where erosion, causing water pollution is probable due to the nature of the material or the season of the year, the Contractor's operations shall be so scheduled that permanent erosion control features will be installed concurrently with or immediately following grading operations. f) Nothing in the terms of the contract nor in the provisions in this shall relieve the Contractor of the responsibility for compliance with Sections 5650 and 12015 of the Fish and Game Code, and all other applicable statutes relating to prevention or abatement of water pollution. g) When borrow material is obtained from other than commercially operated sources, erosion of the borrow site during and after completion of the work shall not result in water pollution. The material source shall be finished, where practicable, so that water will not collect or stand therein. h) The requirements of this section shall apply to all work performed under the contract and to all non-commercially operated borrow or disposal sites used for the project.
i) The Contractor shall also conform to the following provisions:
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PROGRAM
i. Where working areas encroach on live streams, barriers adequate to prevent the flow of muddy water into streams shall be constructed and maintained between working areas and streams, and during construction of the barriers, muddying of streams shall be held to a minimum.
ii. Removal of material from beneath a flowing stream shall not be commenced until adequate means, such as a bypass channel, are provided to carry the stream free from mud or silt around the removal operations.
iii. Should the Contractor's operations require transportation of materials across live streams, the operations shall be conducted without muddying the stream. Mechanized equipment shall not be operated in the stream channels of the live streams except as may be necessary to construct crossings or barriers and fills at channel changes.
iv. Water containing mud or silt from aggregate washing or other operations shall be treated by filtration, or retention in a settling pond, or ponds, adequate to prevent muddy water from entering live streams.
v. Oily or greasy substances originating from the Contractor's operations shall not be allowed to enter or be placed where they will later enter a live stream.
vi. Portland cement or fresh Portland cement concrete shall not be allowed to enter flowing water of streams.
vii. When operations are completed, the flow of streams shall be returned as nearly as possible to a meandering thread without creating possible future bank erosion, and settling pond sites shall be graded so they will drain and will blend in with the surrounding terrain.
viii. Material derived from roadway work shall not be deposited in a live stream channel where it could be washed away by high stream flows.
ix. Where there is possible migration of anadromous fish in streams affected by construction on the project, the Contractor shall conduct work operations so as to allow free passage of the migratory fish.
x. In the process of constructing this project, the Contractor shall comply with all requirements, conditions, recommendations, and provisions of all permits issued for this project. The Contractor shall also comply with all local, State, and Federal laws or requirements related to storm water quality and urban runoff management.
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xi. All de-watering operations in conformance with these Contract Documents must be reviewed and approved by the Engineer in writing prior to commencement.
j) Compliance with the provisions in this section shall in no way relieve the Contractor from the responsibility to comply with the other provisions of the contract, in particular the responsibility for damage and for preservation of property.
k) Street Sweeping:
l) The Contractor shall at the end of each working day, or as directed by the Engineer, clean and sweep all roadways, sidewalks, gutters, and paved areas within the project site of all materials deposited by, attributed to, or involved in the work. Water shall not be used to wash down streets in place of sweeping.
m) Waste Disposal:
n) The Contractor shall at the end of each working day, collect and properly dispose of all scrap, debris, and waste material. Hazardous material disposal shall be done in accordance will all local, state, and federal laws. o) Hazardous Material Storage:
xii. The Contractor shall label and store all hazardous materials, such as pesticides, paints, thinners, solvents, and fuels; and all hazardous wastes, such as waste oil and antifreeze; in
accordance with all applicable State and Federal regulations. xiii. The Contractor shall store all hazardous materials and all hazardous wastes in accordance with secondary containment regulations, and it is recommended that these materials and wastes be covered, as needed, to avoid potential management of collected rain water as a hazardous waste.
xiv. The Contractor shall keep an accurate, up-to-date inventory, including Material Safety Data Sheets (MSDSs), of hazardous materials and hazardous wastes stored on-site, to assist emergency response personnel in the event of a hazardous materials incident.
p) Use of Pesticides:
i. The Contractor shall comply with all rules and regulations of the Department of Food and Agriculture, the Department of Health, the Department of Industrial Relations and all other agencies which govern the use of pesticides required in the performance of the work on the contract.
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ii. Pesticides shall include but shall not be limited to herbicides, insecticides, fungicides, rodenticides, germicides, nematicides, bactericides, inhibitors, fumigants, defoliants, desiccants, soil sterilant and repellents.
iii. Any substance or mixture of substances intended for preventing, repelling, mitigating, or destroying weeds, insects, diseases, rodents, or nematodes and any substance or mixture of
substances intended for use as a plant regulator, defoliant or desiccant shall be considered a pesticide.
1.4 SUBMITTALS
A. Within 48 hours after (1) the end of a storm event resulting in a discharge, (2) a non-stormwater discharge, or (3) receiving a written notice or an order from the RWQCB or another regulatory agency, submit the following information:
1. Date, time, location, and nature of the activity and the cause of the discharge, notice, or order
2. Type and quantity of the discharge
3. WPC practices in use before the discharge or before receiving the notice or order
4. Description of WPC practices and corrective actions taken to manage the discharge or cause of the notice.
B. The Contractor shall submit three (3) copies of the Water Pollution Control Program (WPCP) to the Engineer within fifteen (15) calendar days after Notice of Award. No construction work shall begin on the project until the Contractor receives written notification from the Engineer that the WPCP is acceptable.
C. Water pollution control work is intended to provide prevention, control and abatement of water pollution to streams, waterways and other bodies of water, and shall consist of constructing those facilities which may be shown on the plans, specified herein or in the special provisions, or directed by the Engineer.
D. In order to provide effective and continuous control of water pollution it may be necessary for the Contractor to perform the contract work in small or multiple units, on an out of phase schedule, and with modified construction procedures. The Contractor shall provide temporary water pollution control measures, including but not limited to, dikes, basins, ditches, and applying straw and seed, which become necessary as a result of the Contractor's operations. The Contractor shall coordinate water pollution control work with all other work done on the contract.
E. Before starting any work on the project, the Contractor shall submit a plan to control water pollution effectively during construction of the project Water Pollution Control Program (WPCP). The plan shall show the schedule for the erosion control work included in the contract and for all water pollution control measures which the Contractor proposes to take in connection with construction of the project to minimize the effects of the operations upon adjacent streams and other bodies of water. The Contractor shall not perform any clearing and grubbing or earthwork on the project, other than that specifically authorized in writing by the Engineer, until the WPCP program has been accepted.
F.
1.5 MEASUREMENT & PAYMENT:
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PROGRAM
A. The contract Lump Sum price paid for “Prepare Water Pollution Control Program” includes full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in the preparation of and maintenance of the Water Pollution Control Program (WPCP) for the site and for implementation of the WPCP, complete in place, as specified in these Technical provisions, and no additional compensation will be allowed.
Payment of the lump sum price for “Prepare Water Pollution Control Program” shall be made as follows:
1. A maximum of 10% of the lump sum price for Prepare Water Pollution Control Program shall be paid to the Contractor upon City’s acceptance of the Water Pollution Control Program (WPCP).
2. A maximum of 20% of the lump sum price for “Prepare Water Pollution Control Program” shall be paid to the Contractor upon installation of the initial water pollution control measures for the entire project. The remaining amount shall be prorated until all of the water pollution control measures are installed.
PART 2 - (NOT USED)
END OF SECTION
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E-06 CONSTRUCTION LAYOUT
E-06 CONSTRUCTION LAYOUT
PART 1 - GENERAL
1.1 SUMMARY
a) Section includes but not limited to Construction Staking b) All surveying work shall be performed under the responsible charge of a land surveyor licensed in the State of California.
1.2 REFERENCES
a) Cal/OSHA – California Division of Occupation Safety and Health b) Underground Services Alert (USA)
1.3 MEASUREMENT AND PAYMENT
a) Full compensation for “Construction Layout” shall be considered as included in the contract unit prices paid for the various items of work performed and shall include furnishing all labor, materials, tools, equipment and incidentals, and for doing all the work involved in construction staking, specified herein, and no additional compensation shall be made therefor.
1.4 CONSTRUCTION SURVEY QUALITY CONTROL
a) All parties agree that the construction surveying process described herein is a critical aspect of the project quality control and included in the project bid. If any part of this Specification Section is bypassed or omitted from the construction process the design engineer cannot be responsible for the installed concrete and utility grades and/or locations.
PART 2 - (NOT USED)
PART 3 - EXECUTION
3.01 GENERAL
a) All work shall be done in accordance with Chapter 12, “Construction Surveys,” of the Caltrans Department’s Surveys Manual, these Special Provisions, the Contract Plans, and as directed by the Engineer.
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E-06 CONSTRUCTION LAYOUT
b) Contractor shall provide all the project construction surveying and all costs related to establishing construction staking, providing quality control surveying, performing an as-built survey and submitting AutoCAD files of the as-built information. All construction surveying shall be performed under the direction of a Professional Land Surveyor licensed in the State of California. The Contractor shall be responsible for all land surveying and shall be responsible for replacing control points or survey monuments lost or damaged during the course of construction.
3.02 CONSTRUCTION STAKING
a) Construction staking shall be defined as: “Markings set in the field by a CA Licensed Land Surveyor, prior to construction, with horizontal coordinates and vertical dimensions to the items identified below. All field markings shall be completed under the direction of Land Surveyor licensed by the State of California.” The Contractor shall be responsible for replacing established survey points lost or damaged during the course of construction.
b) Listed below are the some of the items to be surveyed/staked. i. Pavement Digouts as needed
ii. Curb/Curb & Gutter - Top of curb, flow line and lip of gutter at begin of curve, end of curve, every 25' and at all changes in direction.
iii. Curb ramps (beginning, end, mid-point, back corners) iv. Other staking requirements as described in the Special Provisions.
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E-07 HOT MIX ASPHALT (TYPE A)
E-07 HOT MIX ASPHALT (TYPE A)
PART 1 – GENERAL
1.1 SUMMARY
a) Work shall consist of furnishing and placing asphalt concrete pavement under the Standard Construction Process, resurfacing of existing pavement, base pavement repair and building up the asphalt concrete pavement section to achieve the minimum cross slope. The work shall include mixing aggregate and asphalt binder at a central mixing plant, spreading and compacting the mixture, and furnishing and applying prime coat, and tack coat to the lines, grades, and dimensions shown in the Contract Documents. Asphalt concrete shall conform to the provisions of Section 39, “Asphalt Concrete”, of the 2023 State Standard Specifications and to these Technical Provisions.
1.2 SUBMITTALS
b) The Contractor shall provide a Certificate of Compliance for Asphalt concrete and other materials used under this Section in conformance with the requirements of the Contract Documents.
c) The Contractor shall provide an Asphalt concrete mix design in compliance with the requirements of the Contract Documents. d) Contractor shall provide the City Engineer with certified weight tickets furnished at the time of delivery to the inspector in the field. e) Contractor shall provide HMA – Type A with RAP 15% max. No Warm Mix Asphalt is approved for this project unless otherwise directed by City Engineer.
1.3 MEASUREMENT & PAYMENT
f) The contract price paid per Ton for “Hot Mix Asphalt (Type A)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in furnishing and placing hot mix asphalt, complete-in-place, including saw cutting, compaction, spreading, over excavation, protect all existing utility covers, crack sealing, tack coat, paint binder, installing temporary pavement delineation, maintaining, and removing temporary pavement delineation when no longer needed, and built-up pavement section to achieve required cross slope, as specified in Contract Drawings, State Standard Specifications and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefore.
PART 2 – PRODUCT
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E-07 HOT MIX ASPHALT (TYPE A)
2.1 ASPHALT PAVING
g) Asphalt Concrete shall conform to Section 39 – Hot Mix Asphalt of the latest State Standard Specifications and the City Standard Specifications. h) Asphalt Concrete for surfacing shall be Hot Mix Asphalt (HMA) Type A with RAP 15% max.
i) Relative compaction will be determined by California Test 375. Laboratory specimens will be compacted in conformance with California Test 304.
Contractor is responsible to provide QC testing for compaction. For frequency, testing, and inspection requirements, see Exhibit A. The Contractor shall hire a testing laboratory, approved by the City, to perform compaction testing for aggregate concrete in conformance with these Technical Provisions to the satisfaction of the City. The test results shall be submitted to the City for any paving. The Contractor shall be responsible for the cost of all testing. The Contractor shall provide a minimum of two compaction readings for each area as shown in the Contract Drawings and specified in this Technical Provision. The City’s Inspector shall determine, in the field, the location of the readings per each area.
2.2 Asphalt Materials:
j) Aggregate Grading - Hot mix asphalt (HMA) shall be produced at a central mixing plant. Aggregate for the final lift or top lift shall be a ½ inch maximum, specified in Section 39-1.02E, "Aggregate," of the State Standard Specifications. For intermediate courses, aggregate shall conform to the ¾ inch maximum
k) Asphalt Binder - Asphalt Binder to be mixed with the aggregate shall conform to the provisions of Section 92, “Asphalts”, of the State Standard Specifications and shall be paving asphalt Performance Grade PG 64-10 or better in conformance to Section 92-1.02(B) of the State Standard Specifications, unless otherwise directed by the Engineer. l) Paint Binder (Tack Coat) - Liquid emulsion SS-1 shall be in conformance with Section 94, “Asphaltic Emulsions”, of the State Standard Specifications. No fog seal will be required.
m) Crack Seal per requirements of E-19, Crack Seal.
PART 3 - EXECUTION
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E-07 HOT MIX ASPHALT (TYPE A)
3.1 Procedures:
n) Complete street closures are not permitted unless otherwise approved by the Engineer. Contractor must make provisions to allow minimum of one 11 foot wide lane of traffic open in each direction and provide one driveway access to each affected property at all times during working hours. Contractor must stage accordingly and may not remove larger areas than can be constructed and reopened in a given day. o) The final lift shall be placed in 2” minimum layer and the intermediate shall be placed in 3” maximum layer. The finished surface shall conform to the surrounding grade and contour, achieve the minimum required cross slope as shown per the Contract Drawings, and shall not trap water or present a visible hump.
p) The contractor is responsible for implementing measures as needed to allow for work to proceed during cold weather, should it occur. q) Where the existing asphalt concrete section is milled less than one inch thickness (i.e. remaining asphalt section is less than 1 inch thickness), the first lift of asphalt concrete shall be placed the same shift.. r) A drop-off of more than two inches will not be allowed at any time between adjacent lanes open to public traffic.
s) Prior to any lift of HMA, Contractor shall crack seal. See CRACK SEAL section for specifications.
t) Paint Binder (Tack Coat)
i. A paint binder of liquid emulsion SS-1 tack coat shall be applied to existing pavement including planed surfaces, between HMA layers, and all vertical surfaces of existing pavement, curbs, gutters, and construction joints in the surfacing against which additional material is to be placed and to pavement to be surfaced prior to overlay.
ii. The surface shall be free of water, foreign material, or dust, when the tack coat is applied. The area to which prime coat or paint binder has been applied shall be closed to public traffic. Care shall be taken to avoid tracking of binder material onto existing pavement surfaces beyond the limit of construction. The contractor is responsible for cleanup and/or re-stripe of adjacent streets outside of the construction limits that tack coat is tracked. u) Spreading and Compacting
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E-07 HOT MIX ASPHALT (TYPE A)
i. Spreading and compacting shall be performed by methods that will produce an asphalt concrete surface of uniform smoothness, texture and density. The Contractor shall comply with provisions of Section 39-1.11, “Transporting, Spreading and Compacting”, of the State Standard Specifications. The finished surface shall meet the straight edge requirements of Section 39-1.12, “Smoothness”, of the State Standard Specifications.
ii. When placing asphalt concrete to established lines and grades, the automatic controls shall control the longitudinal grade and transverse slope of the screed. Grade and slope references shall be furnished, installed and maintained by the Contractor. iii. When placing the initial mat of asphalt concrete on existing pavement, the end of the screed nearest the centerline shall be controlled by a sensor activated by a ski device not less than 30 feet long. The end of the screed farthest from centerline shall be controlled by an automatic transverse slope device set to reproduce the cross slope designated by the Engineer.
iv. When paving contiguously with previously placed mats, the end of the screed adjacent to the previously placed mat shall be controlled by a sensor that responds to the grade of the previously placed mat and will reproduce the grade in the new mat within a
0.01-foot tolerance. The end of the screed farthest from the previously placed mat shall be controlled in the same manner as when placing the initial mat.
v. Should the methods and equipment furnished by the Contractor fail to produce a layer of asphalt concrete conforming to the requirements, including straightedge tolerance the paving operations shall be discontinued and the Contractor shall modify his equipment or furnish substitute equipment.
vi. Should the automatic screed controls fail to operate properly during any day's work, the Contractor may use manual control of the spreading equipment for the remainder of that day, however, the equipment shall be corrected or replaced with alternative automatically controlled equipment conforming to the
requirements in this section before starting another day's work. vii. The Contractor shall furnish and operate a self-loading motor sweeper with spray nozzles before and after paving operations. All other areas will require hand-sweeping.
viii. All mixtures shall be placed and spread at a temperature of not less than 260 degrees F, and not greater than 300 degrees F.
Initial or breakdown rolling shall be performed immediately after placement. Asphalt concrete shall not be placed when the atmospheric temperature is below 50 degrees F (10 degrees C) or during unsuitable weather, as determined by the Engineer.
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E-07 HOT MIX ASPHALT (TYPE A)
ix. Asphalt concrete placed in layers less than 1 inches (0.08’) compacted thickness or widths of less than 5 feet shall be spread and compacted with the equipment and by the methods specified in Section 39. All other asphalt concrete shall be compacted and finished in conformance with the provisions of Section 39, amended as follows:
x. Section 39-1.11, “Transporting, Spreading and Compacting”, of the State Standard Specifications of the State Standard Specifications is amended to read:
xi. The Contractor shall furnish not less than two (2) rollers with each paving operation and specified compaction and surface finish required by these specifications.
xii. All rollers shall be equipped with pads and water systems which prevent sticking of asphalt mixtures to the pneumatic- or steel-tired wheels. A parting agent, which will not damage the asphalt mixture, as determined by the Engineer, may be used to aid in preventing the sticking of the mixture to the wheels. Areas inaccessible to the rollers shall be compacted by use of a power compactor of the high-impact vibra plate type, capable of attaining the same compaction as the rolled areas.
xiii. The following shall supplement the requirements of Section 39-
2.01C(2) “Spreading and Compacting Equipment”:
xiv. “The first coverage of initial or breakdown compaction shall be performed when the temperature of the mixture is not less than 260°F, and all breakdown compaction shall be completed before the temperature of the mixture drops below 200°F. The initial and breakdown compaction shall be followed immediately by
additional rolling. Asphalt concrete shall be compacted by any means to obtain the specified compaction before the temperature of the mixture drops below 150°F. Additional rolling to achieve the specified compaction will not be permitted after the temperature of the mixture drops below 150°F or once the pavement is opened to public traffic. When vibratory rollers are used as finish rollers the vibratory unit shall be turned off.”
xv. “Rolling shall be performed in such a manner that cracking, shoving, or displacement will be avoided. If heat cracking occurs in the asphalt surfacing during rolling operations, the Contractor shall, at the direction of the Engineer, provide a pneumatic tired roller in place of a steel-tired roller to follow the breakdown roller.
Coverage with the pneumatic-tired roller shall start when the temperature of the mixture is as high as practicable, preferably above 180 F., and shall be completed while the mixture is at or above 150 F.”
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E-07 HOT MIX ASPHALT (TYPE A)
xvi. Asphalt concrete shall be compacted to a minimum relative compaction of 95% and shall be finished to the lines, grades and cross section shown on the plans. In-place density of asphalt concrete will be determined prior to opening the pavement to public traffic. Relative compaction will be determined by California Test 375. Laboratory specimens will be compacted in
conformance with California Test 304.
xvii. Large aggregate that migrates to the surface during handwork shall be returned to the paver box rather than scattered over the surface of the mat.
xviii. Any time new asphalt concrete is to be placed in contact with existing asphalt concrete, the surface shall be cleaned and a tack coat of asphaltic emulsion applied to insure proper bond. Tack coat shall be applied at a rate equivalent to 0.05 to 0.15 gallons per square yard undiluted.
xix. Additional asphalt concrete shall be placed along the transverse edge at the end of each lane and along the exposed longitudinal edges adjacent lanes, hand raked, and compacted to form temporary conforms. Kraft paper, or other approved bond breaker, may be placed under the conform tapers to facilitate the removal of the taper when paving operations resume. If Kraft paper is not used, the cold joint must be sawcut prior to the next day’s paving. xx. The completed surface shall be thoroughly compacted, smooth, and free from ruts, humps, depressions, or irregularities. Any ridges, indentations or other objectionable marks left in the surface of the asphalt concrete by blading or other equipment shall be eliminated by rolling or other means. The use of any equipment that leaves ridges, indentations, or other objectionable marks in the asphalt concrete surface shall be discontinued, and acceptable equipment shall be furnished by the Contractor. xxi. When a straightedge 12 feet long is laid on the finished surface and parallel to the centerline, the surface shall not vary more than
0.01 foot from the lower edge of the straightedge. The transverse slope of the finished surface shall be uniform to a degree that no depressions greater than 0.02 foot are present when tested with a straightedge 12 feet long laid in a direction transverse to the center line and extending from edge to edge of a 12 foot traffic lane.
xxii. The Contractor shall notify the Engineer in writing if the base or subgrade condition will prevent the Contractor from meeting the specified tolerances. Failure to notify prior to commencement of paving operation shall be considered as Contractor’s concurrence that base and subgrade surface is suitable for installation of pavement to tolerances stated.
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E-07 HOT MIX ASPHALT (TYPE A)
xxiii. The tracks or wheels of spreading equipment shall not be operated on the new asphalt concrete pavement until final compaction has been completed. Trucks, loaded or empty, shall not be allowed on the new roadway surface until the asphalt concrete reaches ambient temperature.
xxiv. Base courses at all conforms, and any areas inaccessible to rollers such as around manholes, water valves, etc. shall be mechanically compacted with a rammer or tamper with particular attention to the edges and corners of the excavations.
xxv. The Contractor shall have the option of providing the extra manpower and equipment necessary to work under low over hanging branches or to hire a licensed arborist to trim trees for adequate clearance. A list of proposed trees to be trimmed shall be submitted for Engineer approval prior to proceeding. Written permission shall be obtained from the property owner for any trees on private property prior to proceeding.
v) Subgrade Preparation – “if applicable”
i. Subgrade shall be constructed true to grade and depth as indicated on the Contract Drawings.
ii. Prior to the placement of hot mix asphalt: The subgrade shall be firm, hard and unyielding under the load of heavy construction equipment, subgrade material shall have a minimum relative compaction of ninety percent (90%) as determined by test method ASTM D557 and 2922, shall be thoroughly moistened with water without ponding to the satisfaction of the Engineer, relative compaction tests of the subgrade may be made by the City.
Contractor shall make the work available for such testing. w) Paving Joint: No excess buildup or unsightly appearance shall be permitted on longitudinal or transverse joints. Sand sealing of joints may be required.
x) Temporary Pavement Delineation
i. Temporary pavement delineation shall be furnished, placed, maintained and removed in accordance with the provisions in Section 12-3.01, “General”, of the State Standard Specifications and these Technical Provisions. Nothing in these Technical Provisions shall be construed as to reduce the minimum
standards specified in the Manual of Traffic Controls published by the Department of Transportation.
ii. Do not allow traffic on new HMA until its surface temperature is below 120 F. The contractor may request in writing to the Engineer to authorize cooling of HMA Type A with water when rolling is complete.
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E-07 HOT MIX ASPHALT (TYPE A)
iii. Whenever the work causes obliteration of any and all of the pavement delineation, temporary or permanent delineation shall be in place prior to opening the traveled way to public traffic. Lane line or centerline, edge line and limit line (e.g. stop bars or crosswalks) pavement delineation shall be provided at all times for traveled ways open to public traffic.
iv. All work necessary, including any required lines or marks, to establish the alignment of temporary pavement delineation shall be performed by the Contractor. Surfaces to receive temporary pavement delineation shall be dry and free of dirt or loose material. Temporary pavement delineation shall not be applied over existing pavement delineation or other temporary pavement delineation. Temporary pavement delineation shall be maintained until superseded or replaced with a new pattern of temporary pavement delineation or permanent pavement delineation. v. Temporary pavement markers and removable traffic type tape which conflicts with a new traffic pattern or which is applied to the final layer of surfacing or existing pavement to remain in place shall be removed when no longer required for the direction of public traffic, as determined by the Engineer.
vi. Whenever lane lines and centerlines are obliterated, the minimum lane line and centerline delineation to be provided shall be temporary reflective raised pavement markers placed at
longitudinal intervals of not more than 24 feet. The temporary reflective raised pavement markers shall be the same color as the lane line or centerline markers replaced.
vii. Temporary reflective raised pavement markers shall be placed in accordance with the manufacturer’s instructions and shall be cemented to the surfacing with the adhesive recommended by the manufacturer, except epoxy adhesive shall not be used to place pavement markers in areas where removal of the markers will be required.
END OF SECTION
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E-08 BASE REPAIR (2” & 4” THICK)
E-08 BASE REPAIR (2” & 4” THICK)
PART 1 – GENERAL
1.1 GENERAL
a) Work shall consist of furnishing and placing asphalt concrete pavement section, removal and traffic marking and disposal of existing concrete and asphalt concrete pavement section to the lines, grades, and dimensions as shown on the Contract Drawings and as directed by the Engineer.
Asphalt concrete shall conform to the provisions of Section 39, “Asphalt Concrete”, of the State Standard Specifications and to these Technical Provisions. Aggregate Base shall conform to the provisions of Section 26, "Aggregate Base", of the State Standard Specifications and to these Technical Provisions.
1.2 SUBMITTALS
a) The Contractor shall provide a Certificate of Compliance for Asphalt Concrete, Portland Cement Concrete, Traffic Marking, and other materials used under this Section in conformance with the requirements of the Contract Documents.
b) The Contractor shall provide an Asphalt Concrete mix design in compliance with the requirements of the Contract Documents. c) The Contractor shall submit Concrete Mix Design in conformance with State Standard Specifications and these Technical Provisions to the Engineer for review and approval 15 days prior to work. d) Contractor shall submit concrete Compressive Strength testing results in accordance with State of California Test Method No. 521 and 540. e) Contractor shall provide the Engineer with certified weight tickets furnished at the time of delivery to the inspector in the field. f) Contractor shall provide a submittal for Class 2 Aggregate Base (AB).
Contractor will coordinate with the City to provide a sample of AB to determine the compaction curve.
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E-08 BASE REPAIR (2” & 4” THICK)
1.3 MATERIALS
a) Materials shall conform to Section E-07, “Hot Mix Asphalt (Type A)” and Section E-10 “Portland Cement Concrete Construction”. The Contractor shall hire a testing laboratory, approved by the City, to perform compaction testing for aggregate concrete in conformance with these Technical Provisions to the satisfaction of the City. The test results shall be submitted to the City for any paving. The Contractor shall be responsible for the cost of all testing. The Contractor shall provide a minimum of two compaction readings for each area of concrete placement as shown in the Contract Drawings and specified in this Technical Provision. The City’s Inspector shall determine, in the field, the location of the readings per each area.
1.4 PROCEDURES
a) Prior to beginning base repairs work, the Contractor shall conduct a field review of each base repair with the Engineer or Inspector. The Contractor shall layout base repairs per the dimensions shown on the plan, and notify the Engineer when the layout is completed. The Engineer or Inspector and Contractor shall record the agreed dimensions for each base repair location. Size of the repairs shall not vary from this agreement unless specified in writing by the Engineer. Additional compensation shall not be allowed for base repairs in excess of the agreed upon size. b) Any base repairs proposed in areas that require cold plane milling will be completed after cold plane milling. Base repair shall be completed within 5 working days from any cold plane milling. See section E-09 for Asphalt Concrete Grinding.
c) Where the remaining asphalt concrete section is less than one inch thickness, the first lift of asphalt concrete shall be placed the same shift. d) The Contractor shall remove existing asphalt concrete pavement and the underlying materials to a minimum dimensions and depth as shown on Contract Drawings and agreed upon by the Engineer by sawcutting or by grinding. Overcutting at the ends of sawcuts shall not be allowed. e) All edges shall be saw-cut or milled vertical in conformance to Technical Provision E-09, “Asphalt Concrete Grinding.” Exposed edges shall be protected against breakage with timbers or AC mix whenever a roller enters or leaves the reconstructed area.
f) The Contractor shall excavate around the frame and cover structure in a neat perimeter with a diameter not greater than necessary to remove and replace concrete collar. The top concrete collar shall be constructed to match the finish grade of the pavement. Frame and cover structures damaged during construction shall be replaced at Contractor’s expense.
Note that existing concrete collars may not conform to City Standard Details. Where existing concrete collars does not conform to City Standard Details, Contractor shall be responsible for constructing new collar per City Standard Details.
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E-08 BASE REPAIR (2” & 4” THICK)
g) Contractor shall clean all AC debris and remove any and all tack oil from all structures.
h) Concrete collars shall be poured before 12 noon and shall be protected with steel trench plates until it can support traffic without damage, 3 days minimum.
i) If the frame or cover is unstable or noisy under traffic, the conditions shall be corrected by placing a coil of asphalt saturated rope, a plastic-type washer or asphaltic compounds approved by the Engineer, on the cover seat.
j) The Contractor shall make all arrangements for legally disposing of excavated materials.
k) The Contractor is allowed to safely close off the base repair work areas with water-filled barriers and or skid resistant steel plates if placement of asphalt concrete is to be installed in the same day by the end of the lane closure restrictions. If placement cannot occur in the same day, the asphalt concrete placement shall be installed the following day and the Contractor shall place skid resistant steel plates over base repair work zone.
l) Asphalt placement and the initial breakdown rolling shall occur at a minimum temperature of 255 degrees Fahrenheit. The asphalt concrete shall be placed and compacted to ninety five percent (95%) density and shall meet the elevation of the existing pavement contour without any depressions, humps, or other defects or poor workmanship. Areas inaccessible to rollers shall be compacted by use of a power compactor of the high impact, capable of attaining the same compaction as the rolled areas.
m) Relative compaction will be determined by California Test 375. Laboratory specimens will be compacted in conformance with California Test 304.
Contractor is responsible to provide QC testing for compaction. For frequency, testing, and inspection requirements, see Exhibit A. The Contractor shall hire a testing laboratory, approved by the City, to perform compaction testing for aggregate concrete in conformance with these Technical Provisions to the satisfaction of the City. The test results shall be submitted to the City for any paving. The Contractor shall be responsible for the cost of all testing. The Contractor shall provide a minimum of two compaction readings for each area as shown in the Contract Drawings and specified in this Technical Provision. The City’s Inspector shall determine, in the field, the location of the readings per each area.
n) Prior to the placement of the asphalt concrete, the Contractor shall apply a tack coat to all faces of the existing asphalt pavement. o) Hot Mix Asphalt for Base Repair may be placed in a single lift of 3” thick or less.
p) Potential to Encounter Paving Fabric and Concrete Slab:
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E-08 BASE REPAIR (2” & 4” THICK)
q) All paving fabric and concrete slab removed as part of the base repair work shall become the property of the Contractor and shall be responsible to dispose of the material at a legal disposal site.
r) Traffic Markings:
i. Traffic Marking removed and/or damaged in conjunction with base repair work shall be replaced in kind in to match existing and conform to Techical Provision E-12, “Traffic Marking.”
Compensation for removal and replacement of traffic markings shall be considered as included in the contract unit price paid for the various items of work and no additional compensation will be allowed.
1.5 MEASUREMENT AND PAYMENT
a) The contract price paid per Square Foot for “Base Repair (2” and 4” Thick) shall include full compensation for furnishing all labor, material, equipment, tools, and incidentals, and for doing all the work involved in furnishing and placing asphalt concrete, complete-in-place, including removing asphalt concrete, hauling and disposal of excavated materials, furnishing and placing water-filled barriers or steel plates, dig-outs, cold plane milling, staged construction, temporary conforms, final and temporary traffic striping, markings and markers, tack coats, and paint binders, as specified in Contract Drawings, State Standard Specifications and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefore. Limits of the base repairs shall be marked in the field and agreed upon by the Engineer and no additional compensation shall be made for materials placed outside of these limits marked.
PART 2 – (NOT USED)
PART 3 – (NOT USED)
END OF SECTION
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E-09 ASPHALT CONCRETE GRINDING (2” and 2.5”
THICK)
E-09 ASPHALT CONCRETE GRINDING (2” AND 2.5” THICK)
PART 1 – GENERAL
1.1 SUMMARY
Cold plane milling, including wedge grinding and conform grinding, shall be performed to the depth and dimensions of asphalt concrete and concrete pavement as designated on the Contract Drawings, these Technical Provisions, and as directed by the Engineer.
1.2 WORK INCLUDED
Cold planing the existing asphalt concrete pavement to the depth shown.
1.3 SUBMITTALS
a. Contractor shall provide the Engineer with certified weight tickets for disposal of material at legal disposal site within 5 days of disposal. b. Contractor shall submit a Haul Route Plan to the Engineer for approval, 15 days prior to performing cold plane milling. Contractor shall provide all weight tags for pavement millings to be off-hauled to the Engineer at the end of each workday. (i) Quality control plan
(ii) Mix Design
(iii) Contingency plan
1.4 EQUIPMENT
a. The machine used for milling shall be specially designed and built for milling of bituminous pavements without the addition of heat, with the ability to plane Portland cement concrete areas. The cutting drum shall be a minimum of 48” inches wide and shall be equipped with carbide-tipped cutting teeth placed in a variable lacing pattern to produce the desired finish. Wedge grinding shall be performed using machines equipped with a cutter head of no less than six feet (6’) in width and shall be operated so as not to produce fumes or smoke. The cold planing machine shall be capable of planing the pavement without requiring the use of a heating device to soften the pavement during or prior to the planing operation. The depth, width and shape of the cut shall be as indicated on the typical cross sections and/or details, and as directed by the Engineer. b. The machine shall be capable of being operated at speeds from 0 to 40 feet per minute. It shall be self-propelled and have the capability of spraying water at the cutting drum to minimize dust. The machine shall be capable of removing the material next to the gutter of the pavement being reconditioned and be designed so that the operator can at all times observe the milling operation without leaving the controls. The machine shall be adjustable for slope and depth and shall deep cut in one pass a maximum of three (3”) inches without producing fumes or smoke.
1.5 PROCEDURES
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E-09 ASPHALT CONCRETE GRINDING (2” and 2.5”
THICK)
a. The surface of pavement after milling shall be uniformly rough grooved or ridged depth, width, length and shape of the milled areas shall be as indicated on the Contract Drawings and as directed by the Engineer. Locations on the Contract Drawings designated as “Conform” or “Limit of Work” are approximate and the Engineer shall verify actual locations in the field. After pavement removal, the Contractor shall clean and prepare existing surface for placement of new asphalt concrete.
b. Milling of existing asphalt concrete pavement shall be performed by the cold plane milling method. Milling of the asphalt concrete pavement shall not be done by the heater planing method.
c. The final cut shall result in a uniform surface conforming to the typical cross sections. The outside lines of the planed area shall be neat and uniform. Milling of asphalt concrete pavement operations shall be performed without damage to the adjacent surface to remain in place.
d. Planed widths of pavement shall be continuous except for intersections at cross streets where the milling shall be carried around the corners and through the conform lines. Following milling operations, a drop-off of more than 2 inches will not be allowed at any time between adjacent lanes open to public traffic. e. Where the remaining asphalt concrete section is less than one inch thickness, the first lift of asphalt concrete shall be placed the same shift. f. Any sections of asphalt that become loose after grinding shall be removed and disposed of by the Contractor at the Contractor’s expense. If grinding operations begins to pulverize the asphalt concrete to remain the Contractor shall notify the Engineer immediately. In locations where the grinding operation begins to pulverize the remaining asphalt concrete, the Contractor shall use a smaller grinder to prevent asphalt concrete damage.
g. The Contractor is notified that existing pavement fabric may be encountered in the areas to be ground. No additional compensation beyond the unit price bid for cold plane milling will be made to the Contractor based on the presence of fabric in pavement sections or the presence of existing asphalt above the lip of gutter. h. Additional profiling passes along minor streets may be required to correct isolated street anomalies as directed by the Engineer and no further payment will be made therefore.
i. Any base repairs proposed in areas that require cold plane milling will be completed after cold plane milling. Base repair shall be completed within 5 working days from any cold plane milling. See section E-08, “Base Repair”. j. Sweeping & Equipment - Refer to the Technical Provisions for project sweeping requirements. The Contractor shall furnish and operate a power pick-up broom sweeper before and after grinding operations to remove gravel and other debris from the roadway prior to opening to traffic. Sidewalks, gutters, driveways, and all
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E-09 ASPHALT CONCRETE GRINDING (2” and 2.5”
THICK)
other areas will require hand-sweeping. Power sweepers that don’t pick-up the material shall not be used.
k. The material planed from the roadway surface, including material deposited in existing gutters, driveways, around structures, or on the adjacent traveled way, shall be removed and disposed at a legal dumpsite at no additional compensation.
Material removal operations shall be concurrent with cold-plane milling operations and follow within 50 feet of the planer, unless otherwise directed by the Engineer. l. The Contractor shall furnish and operate a self-loading motor sweeper with spray nozzles for final clean-up work and shall keep the milled area cleaned and maintained at all times until the street has been resurfaced. m. Water Valve Boxes-City water valve boxes shall remain accessible to allow City staff to operate valves during an emergency. The Contractor shall not obstruct or bury City water valve boxes without prior approval by the Engineer. In no case shall water valve boxes be inaccessible for longer than 24 hours. n. Asphalt Temporary Tapers-Where transverse joints are milled in the pavement at conform lines, no drop-off shall remain between the existing pavement and the milled area when the pavement is opened to public pedestrian or vehicle traffic. In areas which have been cold milled or excavated where the offset equals or exceeds 3/8 inch, a temporary asphalt concrete taper shall be constructed before the pavement is to be opened to public traffic, including adjacent to curb ramps and driveways. Asphalt concrete for temporary tapers shall be placed to the level of the existing pavement and tapered on a slope of 1:12 (Vertical: Horizontal) or flatter to the level of the milled area.
o. Asphalt concrete for temporary tapers shall be of commercial quality meeting the requirements of these Technical Provisions, and Section 39 of the State Standard Specifications. It shall be spread and compacted by any method that will produce a smooth riding surface. Temporary asphalt concrete tapers shall be completely removed, including the removal of all loose material from the underlying surface, before placing the permanent surfacing. Operations shall be scheduled so that not more than 7 calendar days shall elapse between the time when transverse joints are milled in the pavement at the conform lines and the permanent surfacing is placed at the conform lines.
1.6 MEASUREMENT AND PAYMENT
a. The contract price paid per Square Yard for “Asphalt Concrete Grinding (2” and 2.5”)”,shall include full compensation for all labor, materials, tools, equipment, and disposing of ground material, complete in place as shown on the plans, as specified in the Standard Specifications, the Special Conditions and these Technical Specifications, and as directed by the City Engineer.
PART 2 – (NOT USED)
PART 3 – (NOT USED)
END OF SECTION
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E-10 CRACK AND SLURRY SEAL
E-10 CRACK AND SLURRY SEAL
PART 1 – GENERAL
1.01 WORK INCLUDED
a) Work covered by this section includes the cleaning out and sealing of cracks within all areas of the project scope labeled for crack and slurry seal and cape seal. Cracks ¼-inch to 1-inch in width shall be sealed with asphalt rubber crack seal material.
1.02 REFERENCES
a) American Society of Testing Materials (ASTM)
i. Section D6690, Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements
1.03 SUBMITTALS
a) Contractor shall submit certificates from suppliers stating compliance of materials with the requirements of this section.
1.04 MEASUREMENT AND PAYMENT
a) Full compensation for “Crack and Slurry Seal” shall be considered as included in the contract unit prices paid for the various items of work performed and shall include furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved cleaning the existing cracks, high-pressure air nozzle and/or mechanical cleaning process, applying crack sealant, complete in place, including the removal and disposal of the resulting material, as shown on the plans for the areas labeled as Cape Seal.
b) The contract price paid per Sq Yd for “Crack and Slurry Seal” shall include furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved cleaning the existing cracks, high-pressure air nozzle and/or mechanical cleaning process, applying crack sealant, complete in place, including the removal and disposal of the resulting material, as shown on the plans for the areas labeled as Crack and Slurry Seal.
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PART 2 - MATERIAL AND EQUIPMENT
2.01 HOT APPLIED SEALANT (For cracks less than 1”)
a) Type 3 Sealant in accordance with Standard Specification. b) The crack sealant material shall be a hot-applied mixture of paving asphalt and ground rubber or ground rubber and polymer. The following products, their current equivalents, or approved equal are considered acceptable:
Manufacturer Product Name
Crafco, Inc Deery 180
Crafco, Inc Polyflex CA
Maxwell Products Elastoflex CA
RW Materials, LLC RW306CS3
SealMaster CrackMaster PL
2.02 ASPHALT CONCRETE MIX (For cracks larger than 1” and not in dig-out area) a) The asphalt to be used shall have a maximum penetration of 150 when tested in accordance with procedure outlined by the American Association of State Highway Officials.
b) Mineral aggregate material for asphalt concrete for sealing cracks larger than 1-inch shall be Type A, 3/8-inch maximum, medium graded aggregate, conforming to Section 39-2, “Hot Mix Asphalt” of the latest Standard Specifications.
2.03 SLURRY SEAL
a)Slurry Seal to be placed in accordance with section 37, Seal Coats, and more specifically to Section 37-3, “Slurry Seals and Micro-Surfacings,” and Section 37-3.03“Micro-Surfacings”of the latest Standard Specifications.
b) The aggregate gradation shall be Type II and shall conform to Section 37-3.01B(2) “Aggregate” of the Standard Specifications. The quality characteristics of the aggregate shall conform to Section 37-3.03B(3) “Aggregate” of the Standard Specifications.
The micro-surfacing emulsion shall conform to Section 37-3.03B(2), Micro-surfacing Emulsions, of the Standard Specifications. The polymer content shall be 3% minimum by weight. Mineral filler shall be more than 0% of the dry weight of aggregates.
PART 3 - EXECUTION
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3.01 GENERAL
3.01(A) CRACK SEALING:
a) Prior to crack seal operations the Contractor shall clean the cracks of all organic material within the limits to be crack sealed. The contractor shall perform the weed removal using mechanical method. When mechanical method is used, the Contractor shall remove all organic material and debris by means of a power rotary wire wheel. Measures shall be implemented to control and prevent sparks from affecting any dry brush or other nearby materials that could potentially ignite.
After cleaning, cracks wider than one-half inch (½”) and deeper than one inch (1”) shall be filled with clean fine sand so that the surface of the sand is within three-quarter inch (3/4”) of the pavement surface. b) Cracks to be filled shall be completely dry at the time of filling, and in no case shall crack sealing be performed within 24 hours of any precipitation. Sealant shall be applied when the pavement surface temperature exceeds 50 Degrees F. Application at lower temperatures may result in reduced adhesion due to possible presence of excess moisture.
c) Cracks 1/4" to 1” wide shall be blown clean of all organic materials with a high pressure air nozzle and/or a mechanical cleaning process to a depth of 1/2" minimum.
d) The asphalt-rubber shall be heated to a minimum temperature of 325 Degrees F but not greater than 390 Degrees F or as specified by the manufacturer and as approved by the Engineer. The material shall be held in the mixing tank at application temperature until very little separation of the rubber and asphalt occurs when a bead of sealant material is placed on the pavement. Sealant material may be added to the mix as long as the minimum temperature of 325 Degrees F is maintained. e) Asphalt-vulcanized rubber crack sealant material shall be applied to all cracks ¼-inch or greater so as to be flush with the adjacent pavement surface. Cracks shall be sealed from the bottom up. Excess sealant shall be leveled to less than a 1/8-inch thickness with a squeegee or sealing shoe to produce a band which is 2 to 4 inches wide, centered over the crack. If surplus sealant material rises above the pavement surface, the over banding must be squeezed flat and flush with the surrounding surface. Over banding that has not been squeezed and produces a bump or fat spot in the roadway shall be removed and replaced at the Contractor’s expense.
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f) Contractor shall not overfill cracks, as excess filler will cause bumps in the overlay and may migrate through the paving surface course during compaction.
g) Traffic shall not be allowed on the material until it has cured or until it has been sanded to prevent tracking.
h) All crack sealing shall be completed at least one-working day prior to slurry sealing. Reinforcing fabric shall not be placed for at least 24 hours after crack sealing.
a) Cracks larger than 1” shall be blown clean of all organic materials with a high-pressure air nozzle and/or a mechanical cleaning process to a depth of 1/2" minimum.
b) Cracks shall be filled with Type A, 3/8-inch maximum, medium graded aggregate asphalt concrete mix.
3.02 (B) SLURRY SEALING:
a) Mixing and spreading equipment shall conform to the provisions in Section 37-3.01C(3), “Mixing and Spreading Equipment,” of the Standard Specifications and these Technical Specification.
A minimum of two 7-cubic yard capacity or larger micro-surfacing machines shall be on the job and in good operating condition at all times. Machines must be able to negotiate all turns next to the curbs in cul-de-sacs, on initial pass in one continuous pass.
The Contractor shall prepare the pavement surface as described in Section 37-3.01C(4), “Surface Preparation,” of the Standard Specifications. On those streets scheduled to receive micro-surfacing after the application of the asphalt rubber asphalt chip seal, the chip seal shall be allowed to age and cure under traffic for at least two days before placing the micro-surfacing. A longer period shall be required if, in the opinion of the Engineer, the chip seal is not sufficiently embedded, which could result in damage to the cape seal if prematurely covered by the micro-surfacing.
The Engineer will give notification to the Contractor indicating when the micro-surfacing can be applied. Unless adverse weather conditions prevail as determined by the Engineer, the curing period shall not exceed two (2) weeks.
b) The Contractor shall patch the chip seal where any voids exist prior to application of the micro-surfacing. Any void caused by automobile tires, poor adhesion of chips to emulsion, or any other cause shall be the Contractor’s responsibility to repair prior to application of micro-surfacing. c) Placement of micro-surfacing shall conform to Section 37-3.01C(5), “Placement” of the Standard Specifications.
Rolling operations shall be performed in conformance to Section 37-3.01C(5)d, “Finished Surfaces,” of the Standard Specifications. Rolling of the micro-surfacing will be done on all streets, unless otherwise specified by the Engineer. Rollers shall be the pneumatic-tired type and operate and produce results similar to those used for chip seal. Rollers shall be kept in
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continuous operation on the micro-surfacing with a minimum of two (2) complete coverages.
Rolling will continue until a smooth even surface is produced. Rolling may be discontinued by the Engineer at any time if, in his opinion, the street has obtained the proper finish.
Rolling of the streets shall commence after the micro-surfacing has cured and stabilized (approximately 3-4 hours) and no later than 48 hours after the micro-surfacing is placed. Rolling may be delayed or accelerated if in the opinion of the Engineer the traffic and public are better served by such delay or acceleration. Any such change in timing will in no way relieve the contractor of the obligation to roll the micro-surfacing when later directed by the Engineer to do so. Additional coverages are expected for cul-de-sac locations.
If the rolling is not achieved within the time constraints stated above, the micro-surfacing shall be removed and replaced at the Contractor’s expense. However, if requested in writing by the contractor and approved by the Engineer, the micro-surfacing may remain in place and the Contractor shall pay to the City $2.00 per ton of aggregate used in the micro-surfacing left in place.
d) Contractor shall sand intersections and areas fronting driveways as directed by Engineer to allow traffic to cross freshly placed micro-surfacing at intersections, business entrances/exits and other locations that cannot in the estimation of the Engineer be completely closed to traffic.
Sand material will be the same aggregate used in the micro-surfacing mixture and conform to these Contract Documents.
The contractor shall remove any excess micro-surfacing material from the gutters prior to removing traffic control devices and “no parking” signs. Liquidated damages shall still apply for delays in removing traffic control devices and “no parking” signs due to a delay in clearing material from the gutter pan. No additional working days shall be granted due to delay caused by the neglect to these provisions. If bleeding, raveling, delamination, rutting, or wash boarding occurs within 60 days after placing the micro-surfacing, the Contractor shall diligently pursue repairs by any method approved by the Engineer. The Contractor shall not be relieved from maintenance until repairs have been completed.
END OF SECTION
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E-11 CAPE SEAL
E-11 CAPE SEAL
PART 1 – GENERAL
1.01 WORK INCLUDED
A. Work covered by this section also includes an application of modified asphalt and hot screenings precoated with paving asphalt. Modified binder seal coat shall conform to the provisions specified for seal coat in Section 37-2, "Chip Seals," of the latest Standard Specifications and these special provisions. All references within this Seal Coat specification to the Standard Specifications refer to the latest Standard specs. The terms “seal coat” and “chip seal” shall be used interchangeably in the plans and these specifications.
1.02 REFERENCES
A. American Society of Testing Materials (ASTM)
ii. Section D6690, Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements iii. Caltrans Standard Specifications latest
1.03 SUBMITTALS
A. Contractor shall submit certificates from suppliers stating compliance of materials with the requirements of this section.
1.04 MEASUREMENT AND PAYMENT
A. The contract price paid per Sq Yd for “Cape Seal” full compensation for providing all labor, materials, tools, equipment and incidentals, and for doing all the work involved in CAPE SEAL including preparing the roadway surface for seal coat, protecting existing utility covers within seal coat limits, crack sealing, placement of the rubberized asphalt binder, placement of precoated aggregate and screenings, rolling, and sweeping.
PART 2 - MATERIAL AND EQUIPMENT
2.01 QUALITY CONTROL TESTING
A. Attention is directed to Section 6, “Control of Materials,” of the Standard Specifications. The name of an independent testing laboratory that participates in the AASHTO Proficiency Sample Program shall be submitted to the Engineer for approval at least 14 days before beginning modified binder seal coat operations. The independent testing laboratory shall conduct quality control testing on the modified binder for all specifications listed in these special provisions, within 4 business days of sampling. The results shall be submitted to the Engineer within 7 days of the receipt of the samples. Within 14 days of beginning the modified binder seal coat operation, the Contractor's independent testing laboratory shall conduct the Vialit Test Method for aggregate in Chip Seals, French Chip for the retention requirement and submit a signed copy of a test results report to the Engineer. Should the approved
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independent agency fail to test in accordance with this section (03000), the City may hire a separate independent testing agency to perform quality control testing at the Contractor’s full expense.
2.02 The Contractor shall provide the submittals as described in Section 37-1.01C, “Submittals,” and Section 37-2.01A(3), “Submittals,” and Section 37-2.04A(3), “Submittals,” of the Standard Specifications.
Properties of the chip seal shall conform to Section 37-2.01B, “Materials,” and Section 37-2.04B, “Materials,” of the Standard Specifications and include the following:
• Asphalt Rubber Binder
• Asphalt Modifier
• Crumb Rubber Modifier (CRM)
• Precoated Aggregate
The gradation for the precoated aggregate shall be 3/8”. Asphalt-rubber binder shall consist of a Field Blended mixture of asphalt binder, asphalt modifier, and crumb rubber modifier. “Terminal blend” is not an acceptable “or-equal” material for this project and requests for evaluation and/or substitution will not be considered.
A. The percentage of tire rubber, by weight of the total modified binder, shall be
15.0 percent. Rubber shall consist of 100% California scrap tire rubber and shall consist of ground or granulated rubber derived from any combination of automobile tires and truck tires. Use of tire buffing shall not be remitted.
B. All material meeting PG 76-22 TR shall be manufactured in accordance with the Departments Material Plant Quality Program (MPQP). A Certificate of Compliance shall be furnished to the Engineer in conformance with the provisions in Section 6-2.03C, "Certificates of Compliance," of the Standard Specifications. The certificate shall certify that the material which the certificate represents conforms to the provisions specified in these special provisions.
When requested by the Engineer, the Contractor shall also submit samples with the Certificates of Compliance. The Contractor shall provide the Engineer a Material Safety Data Sheet (MSDS) for each of the constituent components of the modified asphalt binder and for the completed mixture of the modified asphalt binder.
C. The Contractor shall provide a Certificate of Compliance for each truckload of modified binder. The Contractor shall conduct quality control testing on the modified binder for all specifications listed in these special provision for every 50 tons of material placed on the project.
D. Certified weight slips shall be delivered to the Engineer for materials supplied.
E. At least 15 days before its intended use, the Contractor shall furnish the Engineer 4 one-quart cans filled with the modified binder proposed for use on the project. Laboratory test results for test parameters shown in these special provisions shall be provided with the modified binder.
F. Contractor shall furnish certification from modified binder supplier that includes the following information:
a. Source and identification of scrap tire rubber;
b. Percentage of scrap tire rubber by total weight of the modified binder;
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c. If scrap tire rubber from more than once source is used, the above information will be required for each scrap tire rubber source used;
2.03 SCREENINGS
A. Screenings shall conform to the provisions in these special provisions and in Section 37-2, "Chip Seals," of the Standard Specifications, as modified below.
B. Screenings shall be black in color. The use of grey or light-colored aggregate will not be allowed. All aggregate shall be free of caked lumps and oversize particles.
C. Screenings shall be clean and free from dirt, vegetable matter, and other deleterious substances. The drum shall also be cleaned of all fine material prior to commencing the pre-coating operations. Screenings will be rejected if, in the opinion of the Engineer, they contain excessive dust or fine material.
D. Stockpile screenings at the asphalt plant a minimum of 1 working day, and no less than twenty-four (24) hours, before they will be precoated and make them available to the Department for Quality Assurance (QA) testing. Screenings that have not been stockpiled on-site as required by this special provision, or otherwise not made available to the City for testing in a manner pre-approved by the Engineer, will be rejected. Any material failing the QA testing will be rejected, including any additional material that may have been added to the stockpile after the failing sample was taken. Adding material to established and tested stockpiles will be cause to reject the entire stockpile.
E. Discrete stockpiles shall be maintained no larger than 1 day’s haul or 500 tons.
F. Stockpiling of screenings after preheating and precoating with paving asphalt will not be permitted.
G. If the ambient temperature is below 65 F or the haul time exceeds 30 minutes, canvas or similar covers that completely cover each load of precoated screenings shall be used during hauling to minimize temperature drop of the precoated screenings.
H. Screenings shall conform section 37-2.04A(4)(c)(v) of standard specification and to the following grading and quality requirements prior to precoating with paving asphalt:
SCREENINGS GRADING
REQUIREMENTS
3/8 inch Maximum
Sieve Sizes Percentage
Passing
1/2" 95 - 100
3/8" 70 - 85
No. 4 0 – 15
No. 8 0 – 5
No. 200 0 – 1
I. Screenings shall conform to the following quality requirements immediately prior to preheating:
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SCREENINGS QUALITY REQUIREMENTS
Test Parameters California Test Requirement
s
Los Angeles Rattler Loss (100
Revolutions)
211 10 Max.
Los Angeles Rattler Loss (500
Revolutions)
211 40 Max.
Film Stripping 302 25 Max.
Cleanness Value 227 80 Min.
Durability 229 52 Min.
J. Screenings for modified binder seal coat shall be preheated to between 260° F and 325° F and uniformly coated at a rate of 0.5-percent to 1.0-percent by weight of dry aggregate with any of the asphalts specified in the table "Performance Graded Asphalt Binder" in Section 92, "Asphalts," of the Standard Specifications. Screenings shall be coated at a central mixing asphalt concrete plant that has been approved in conformance with the requirements in California Test 109 and the Material Plant Quality Production (MPQP) requirements of the California Department of Transportation. Supplemental fine aggregate, as defined in Section II HMA Plant Equipment, Item E Aggregate Storage, of the Material Plant Quality Program (MPQP) shall not be recombined with any other aggregate utilized in the production of screenings.
The exact rate will be determined by the Engineer.
K. Notify the Engineer in writing a minimum 1 working day, no less than twenty-four (24) hours, before beginning precoating of screenings. Notification shall include the address, date, and start time of precoating activities. Do not begin production activities until a representative from the Department’s Material and Testing Lab is on-site and observing production activities. If precoating of screening is started prior to the time stated in the notification such that the Agency’s representative is not present and actively observing production activities, all screenings produced during this time will be rejected.
2.04 EQUIPMENT
The equipment used by the Contractor for modified binder seal coat operations shall conform to the following:
A. A computerized self-propelled screenings spreader, equipped with a screenings hopper in the rear and belt conveyors to carry the screenings to the front of a spreading hopper. The screenings spreader shall be capable of providing a uniform screening spread rate over the entire width of the traffic lane in one application.
B. For terminally blended PG 76-22 TR a self-propelled distributor truck shall be used for applying modified binder. The distributor truck shall be equipped with a heating unit, a pump or pumps that spray the modified binder within ±0.03-gallon per square yard of the specified rate and a fully circulating spray bar that applies the binder without a streaked or otherwise irregular pattern.
The distributor truck shall be equipped with a tachometer, pressure gages, volume measuring devices, and thermometer.
C. Tailgate discharge trucks for hauling screenings shall be equipped with a device to lock onto the hitch at the rear of the screenings spreader. Haul trucks
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shall be compatible with the screenings spreader so that the dump bed will not push down on the spreader when fully raised or have too short a bed which results in screenings spilling while dumping into the receiving hopper.
PART 3 - EXECUTION
3.01 STREET SURFACE PREPARATION FOR SEAL COAT
A. Prepare street surface in accordance with Section E-10, “Crack and Slurry Seal”
B. Pavement must be completely dry prior to application of modified binder seal coat. In the event that a scheduled street should become wet due to rain, fog, a water main break, or any other reason, the street shall be re-scheduled for construction no sooner than three (3) days after the surface has dried. “No Parking” signs must be re-posted the minimum 24-hours before work resume, and residents must be re-noticed.
C. The Contractor must get approval from the Engineer prior to the application of the seal coat as to the cleanliness and readiness of the street to receive seal coat application.
D. Asphalt rubber cape seal shall consist of an application of an asphalt rubber chip seal followed by the application of micro-surfacing per the section, “Slurry Seal (micro),” of these Technical Specification.
The micro-surfacing shall not be placed on newly placed chip seal surfacing until the roadway has been opened to public traffic for a period of not less than two (2) calendar days, but no later than fourteen (14) calendar days, unless otherwise directed by the Engineer. The Contractor shall pay the City liquidated damages in the amount of $650 per calendar day (or part of a day) for each day beyond the fourteen (14) days after chip seal work is completed during which micro-surfacing work has not commenced. The rate of liquidated damages incurred each day shall remain the same whether it applies to a single location or multiple locations.
3.02 STREET SURFACE PREPARATION FOR CHIP SEAL- APPLYING MODIFIED BINDER:
Asphalt-rubber binder shall be applied in conformance to Section 37-2.01C(4)(b), "Applying Asphaltic Emulsions or Asphalt Binders," and Section 37-2.04C(3), “Asphalt Rubber Binder Application,” of the Standard Specifications.
A. Modified binder shall be applied at a rate from 0.28-gallon to 0.40-gallon per square yard. The exact rate will be determined by the Engineer. The binder shall be applied when the temperature of the binder is between 330° F and 375° F.
B. Modified binder shall not be applied when weather conditions are unsuitable or when the pavement is damp or wet. The pavement surface temperature shall be a minimum of 55° F where modified binder is to be applied. The atmospheric temperature shall be a minimum of 60° F and a maximum of 105° F. Modified binder shall not be applied until sufficient screenings are available to immediately cover the binder being applied.
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C. The Contractor is responsible for having a temperature gauge on-site at all times during the application of binder. Temperature gauge must be capable of reading the required temperatures provided in this specification.
D. Distributor bar height, distribution speed, and shielding materials shall be utilized to reduce the effects of wind upon spray distribution as directed by the Engineer. The Engineer will delay or reschedule work when high, gusting or dirty winds prevent or adversely affect binder or screening application operations. Necessary equipment shall be in position and ready to commence placement operations before starting.
E. The modified binder application shall not be spread in excess of that which can be covered with screenings within 2 minutes.
F. When placing modified binder seal coat at intersections, left turn lanes, gore points, and other irregular areas, modified binder application shall not be in excess of that which can be covered with screenings within 5 minutes.
G. When joining edges against areas with screenings, the joint shall be swept clean of excess screenings prior to the adjacent application of modified binder.
Transverse joints of this type shall be constructed by placing roofing paper across and over the end of the previous modified binder seal coat application.
Once the spraying has progressed beyond the paper, the paper shall be removed immediately.
H. The longitudinal joint between adjacent applications of screenings shall coincide with the line between designated traffic lanes. Longitudinal joints shall be overlapped for complete coverage. The overlap shall not exceed 4 inches, except with the approval of the Engineer the overlap may be up to 8 inches.
I. At longitudinal joints with screenings, the edge shall be broomed back and blended to eliminate differences in elevation. The joints shall be free from ridges and depressions and shall have a uniform appearance consistent with the adjacent sealed surface. Defects shall be corrected at the Contractor's expense.
J. Joints between areas of modified binder without screenings shall be made by overlapping modified binder distributions. The excess material shall be properly dispersed by spreading with a squeegee or rake over a larger area of freshly applied modified binder.
K. The application of modified binder to areas not accessible with the distributor bar on the distributor truck shall be accomplished by using pressurized hand wands or other means approved by the Engineer.
3.03 SPREADING SCREENINGS: Aggregate application shall performed in conformance to Section 37-2.01C(4)(c), “Spreading Aggregates,” and Section 37-2.04C(4), “Precoated Aggregate Spreading,” of the Standard Specifications.
A. Screenings for modified binder seal coat shall be spread immediately following the application of the binder, within the range of 18 pounds to 26 pounds per square yard. The exact rate will be determined by the Engineer. The completed spread rate shall be within 10 percent of the rate determined by the Engineer.
The completed surface shall be free of gaps, ridges, depressions or other irregularities caused by the application of the modified binder seal coat.
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B. Screenings shall be spread when the temperature of the precoated screenings is not less than 225° F and not more than 325° F after applying modified binder.
C. The Contractor shall prevent any vehicle, including construction equipment, from driving on the modified binder prior to application of screenings.
D. The screenings spreader shall not be more than 50 feet behind the modified binder distribution truck unless otherwise ordered by the Engineer. Trucks hauling screenings shall be kept clear of the freshly placed screenings until ready to dump screenings in the spreader equipment.
E. The limits of the aggregate may be offset from the lip of the concrete gutters by no more than 0.5 feet.
F. The limits of the aggregate may be offset from existing manholes, valve pots, monument wells, and other facilities by no more than 0.5 feet.
3.04 FINISH AND ROLLING OPERATIONS: Rolling and Sweeping operations shall be performed in conformance to Section 37-2.01C(4)(d), “Finishing,” and Section 37-2.04C(5), “Rolling and Sweeping,” of the Standard Specifications.
A. A minimum one foot strip shall be swept with a self-propelled kick broom along the edge of the roadway prior to seal coating the next lane. All loose aggregate shall be pushed back onto the lane just after seal coating.
B. In the course of construction where the modified binder distributor truck creates a joint by stopping at some point along the length of the roadway, the screenings spreader shall stop short of this joint, leaving a small strip of uncovered modified binder. This is to prevent an overlapping double thickness joint from being created once work resumes. All reasonable precautions shall be taken to avoid skips and overlaps at joints. Correct any defect at your expense by use of a shovel and/or broom prior to continuing operations.
C. Seal coat shall be applied in such a manner that the joint between the newly seal coated pavement and an existing pavement surface is neat and uniform in appearance. The cut-off of seal coat shall be made on building paper or similar material spread over the surface.
D. Initial rolling of the modified binder seal coat shall consist of a minimum of one complete coverage and shall begin within 90 seconds following the placement of the screenings. The roller speed shall be approved by the Engineer. All chip seal spreading shall be performed with a minimum of two (2) operating rollers operating simultaneously.
E. The distance between the rollers and the screenings spreader shall not exceed 200 feet at any time during the spreading of the screenings operations.
F. A minimum of 3 complete coverages with pneumatic tired rollers, after the initial coverage shall be made on the modified binder seal coat. When permitted by the Engineer, the final roller coverage may be made with one steel wheel roller weighing 12 to 14 tons. The roller shall be operated in the static mode only.
3.05 SWEEPING OPERATIONS:
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A. The contractor shall remove any excess emulsion and screening material from the gutters prior to removing traffic control devices and “no parking” signs.
Liquidated damages shall still apply for delays in removing traffic control devices and “no parking” signs due to a delay in clearing material from the gutter pan. No additional working days shall be granted due to delay caused by the neglect to these provisions.
B. Sweeping shall be a multi-step operation following final rolling of the aggregate. Loose aggregate shall be removed from the roadway surface and abutting adjacent areas. Loose aggregate shall be disposed of at least 150 feet from the nearest waterway.
C. Sidewinder sweepers or brooms that wind row material and do not remove it shall not be used. A minimum of three (3) sweepers shall be used at all times. If the sweeping effort cannot keep up with the work, a fourth sweeper must be mobilized to the project site for the remaining duration of the project.
All areas shall be swept a second time or more if necessary in the same manner as the first sweeping or as directed by the Engineer. Completion of sweeping shall be evidenced by the absence of loose chips in gutters or driveways. Special attention shall be required in sweeping driveways clear of loose chips. The contractor shall also be responsible for removal of all chips from the sidewalks and other affected areas. Streets in hill areas shall be swept as often as necessary to remove loose chips from the roadway. The contractor shall provide a sufficient number of sweepers to sweep all streets within 24 hours after spreading aggregate (chips).
D. The use of any sweeper that causes damage to the chip seal shall be discontinued. The contractor shall patch the chip seal where any voids exist prior to application of the micro-surfacing. Any void caused by automobile tires, poor adhesion of chips to emulsion, or any other cause shall be the contractor’s responsibility to patch prior to application of the micro-surfacing.
3.05 TEMPORARY SIGNS
A. Post temporary signs indicating “Loose Gravel” once a street has received screenings. The type, quantity, and locations of signs will be determined by the Engineer. Signs shall remain posted until that street has been slurry sealed.
END OF SECTION
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E-12 PORTLAND CEMENT CONCRETE
CONSTRUCTION
E-12 PORTLAND CEMENT CONCRETE CONSTRUCTION
PART 1 – GENERAL
1.1 SUMMARY
a) Work shall consist of removal and disposal of existing concrete and the construction of curb and gutter, driveway, sidewalk, curb ramps, and utility frame concrete collars and shall conform to the Contract Drawings and the provisions in Section 15-1.03.B, “Removing Concrete,” Section 14-10, “Solid Waste Disposal and Recycling,” Section 40, “Concrete Pavement”, Section 52, “Reinforcement”, Section 73, "Concrete Curbs and Sidewalks" and Section 90, “Concrete” of the State Standard Specifications, the most current City of Milpitas Standard Drawing, these Technical Provisions and as directed by the Engineer.
b) Curb and gutter and sidewalk shall conform to the Contract Drawings and City Standard Drawing No.’s 410, 426, and 427. Driveway shall conform to the Contract Drawings and City Standard Drawing No.’s 432 and 434.
Curb Ramps shall conform to the Caltrans Standard Details and as modified by the Plans.
c) Coordinate with adjacent private property owners for access or repairs to damaged private property improvements.
d) This project is subject to the “Buy America” provisions of the Surface Transportation Assistance Act of 1982 as amended by the Intermodal Surface Transportation Efficiency Act of 1991.
1.2 SUBMITTALS
a) The Contractor shall submit Concrete Mix Design in conformance with State Standard Specifications and these Technical Provisions to the Engineer for review and approval 15 days prior to work. b) The Contractor shall submit Certificate of Compliance for materials used under this Section in conformance with State Standard Specifications and these Technical Provisions at the time of delivery to the inspector in the field.
c) Contractor shall submit Certified Weight Tickets in conformance with State Standard Specifications and these Technical Provisions at the time of delivery to the inspector in the field.
d) Contractor shall submit concrete Compressive Strength testing results in accordance with State of California Test Method No. 521 and 540. e) Contractor shall submit Compaction tests results of aggregate base in accordance ASTM D1557 and D2922.
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CONSTRUCTION
f) Contractor shall submit Detectable Warning Surface cut sheet in conformance with Caltrans Standard Specifications and Details. g) If the curb ramp and sidewalk does not conform to the Caltrans Standard Detail A88A due to site steepness and topography, Contractor shall notify the City and document any design exceptions.
1.2 MEASUREMENT AND PAYMENT
a) The contract price paid per Square Foot for “Sidewalk Removal and Replacement” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work to removing and installing concrete flatwork to the nearest joint, complete in place, including furnishing and placement of Class 2 aggregate base and concrete, furnishing, placement, and removal of forming, sawcutting and removal of sawcut material, doweling into existing curb or sidewalk, excavation, subgrade preparation, hauling and disposal of all unsuitable aggregate base, asphalt concrete, concrete and material, compaction of aggregate base and subgrade, weakened plane joints and score lines, tree root removal and protection, coordination with the private property owner, compaction and compressive testing of subgrade, aggregate base, and concrete, existing surfaces restoration, tree root inspection, protection and removal, as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor. b) The contract price paid per Linear Foot for “Curb and Gutter Repair (Beyond Ramp Limits)” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in removal and replacement curb and gutter to the nearest joint, complete in place, including furnishing and placement of Class 2 aggregate base and concrete, furnishing, placement, and removal of forming, furnishing and placement of asphalt concrete plug, furnishing and placement of asphalt concrete conform, sawcutting and removal of sawcut material, doweling into existing curb or sidewalk, excavation, subgrade preparation, hauling and disposal of all unsuitable aggregate base, asphalt concrete, concrete and material, compaction of aggregate base and subgrade, weakened plane joints and score lines, tree root removal and protection, coordination with the private property owner, compaction and compressive testing of subgrade, aggregate base, and concrete, existing surfaces restoration tree root inspection, protection and removal,, as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor.
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c) The contract price paid for Each for “Install Curb Ramp (Per Caltrans Standard Drawings) shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work to removing and installing curb ramp, curb and gutter, asphalt paving, sidewalk and base, encompassing 4’ minimum of sidewalk, curb and gutter and base on each side of the new ramp up to the nearest score line or weakened plane joint or as shown on the plans, whichever is furthest, complete in place, including furnishing and placement of Class 2 aggregate base, curb and gutter, curb ramp, sidewalk and detectable warning surface, furnishing, placement, and removal of forming, furnishing and placement of asphalt concrete plug, furnishing and placement of asphalt concrete conform, sawcutting and removal of sawcut material, doweling into existing curb or sidewalk, excavation, subgrade preparation, hauling and disposal of all unsuitable aggregate base, asphalt concrete, concrete and material, compaction of aggregate base and subgrade, weakened plane joints and score lines, tree root removal and protection, coordination with the private property owner, compaction and compressive testing of subgrade, aggregate base, and concrete, existing surfaces restoration, tree root inspection, protection and removal, as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor. d) The contract price paid for Each for “Detectable Warning Surface Installation” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work to removing and installing detectable warning surfaces complete in place, as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor.
e) The contract price paid for Square Foot for “Valley Gutter Repair” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in necessary excavation, disposal of materials, and removal and construction of a new valley gutter in the existing location. The contractor shall furnish all materials necessary for the valley gutter removal and replacement, including Concrete, reinforcement per Caltrans Standard Specifications, bituminous expansion joint material as detailed in Caltrans standard specifications, and other items as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor.
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f) The contract price paid per Square Foot for “Replace Concrete with Decomposed Granite in Planter Areas” shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work to removing and installing concrete flatwork to the nearest joint, complete in place, including furnishing and placement of Class 2 aggregate base and concrete, furnishing, placement, and removal of forming, saw cutting and removal of sawcut material, doweling into existing curb or sidewalk, excavation, subgrade preparation, hauling and disposal of all unsuitable aggregate base, asphalt concrete, concrete and material, compaction of aggregate base and subgrade, weakened plane joints and score lines, tree root removal and protection, coordination with the private property owner, compaction and compressive testing of subgrade, aggregate base, and concrete, existing surfaces restoration, tree root inspection, protection and removal, using decomposed granite for replacement, as shown on the Contract Drawings, the latest City of Milpitas Standard Drawings, as specified in the State Standard Specifications, and these Technical Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefor
g) No adjustment in the contract prices for “Curb and Gutter Removal and Replacement (Beyond Ramp Limits)” and “Sidewalk Removal and Replacement”, shall be made for increases or decreases of more than 25 percent of the quantities.
PART 2 – MATERIALS
a) Portland Cement Concrete shall contain five hundred sixty-four (564) pounds (6 sacks) of Type II Portland cement per cubic yard in conformance to ASTM C150 and the provisions in Section 90, “Concrete” of the Standard Specifications. Concrete shall be proportioned and mixed to develop a minimum compressive strength of 3,000 pounds per square inch at 28 days. Concrete used for manhole and utility frame concrete collars shall have a minimum compressive strength of 4,000 pound per square inch at 28 days. The mix used for manhole and utility frame concrete collars shall contain 2 pounds of lampblack per cubic yard and shall not be mixed by hand, with a minimum of 6” of concrete containing lampblack. The edges of the concrete shall be flush with surrounding finish grade per City standard detail No. 230 with finished with a ½” rounding tool adjacent to the asphalt.
b) Aggregates for Concrete Mix shall be free from deleterious coatings, clay balls, roots, bark, sticks and other extraneous material and gradation shall be Combined Aggregate, in conformance to the provision in Section 90, “Concrete” of the Standard Specifications.
c) Reinforcing Steel shall be A36 steel, grade 60 in conformance to the provisions in Section 52, “Reinforcement,” of the Standard Specifications. d) Water shall be clean and free from oils and other deleterious material in
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conformance to the provision in Section 90, “Concrete” of the Standard Specifications.
e) Admixtures, accelerators, or retarders shall not be allowed without the approval of the Engineer unless required in the Contract Documents. If admixtures, accelerators, or retarders are approved, it shall be in conformance to the provision in Section 90, “Concrete” of the Standard Specifications.
f) Aggregate Base shall be Class 2 in conformance to the provision in Section 26, “Aggregate Bases,” of the State Standard Specifications, Contract Drawings, and the most current City Standard Drawings. g) Curing concrete methods and compounds shall be in conformance to the provision in Section 90, “Concrete” of the Standard Specifications. h) Adhesives for bonding new to existing concrete and dowels into drilled holes shall be in conformance to the provisions in Section 95, “Epoxy” of the Standard Specifications.
i) Asphalt Concrete Plug shall conform to section E-07 “Hot Mix Asphalt (Type A)” in these Technical Provisions.
j) Asphalt Concrete Conform shall conform to section E-07 “Hot Mix Asphalt (Type A)” in these Technical Provisions.
k) Detectable Warning Surface shall be in conformance with the provisions of Section 73, “Concrete Curbs and Sidewalks” of the Standard Specifications. Detectable Warning Surfaces shall be a ‘wet-set’ system embedded into new concrete, unless otherwise approved by the Engineer.
l) Root Barrier shall be in conformance to the provisions in Section 20, “Landscape” of the Standard Specifications.
PART 3 – EXECUTION
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a) Contractor shall walk the site with the City's inspector and mark out the proposed concrete demolition and improvements limits of work and paint the mark ups for approval by the Engineer.
b) Contractor shall demolish existing features in accordance with Section 15 “Existing Facilities” of the State Standard Specifications and the following:
c) Remove existing pavements, structures, and site improvements that interfere with new construction
d) Backfill holes and depressions caused by removal of existing facilities. e) Curb, curb and gutter, sidewalk, driveway, curb ramps and concrete pavement shall be removed at construction joints or expansion joints.
Coordinate removal limits with Engineer.
f) Facilities to be removed shall be cut straight, clean and square with a power-driven saw to a full depth before removing the surfacing.
Sawcutting shall be done on a neat line with a power-driven saw to an adequate depth to ensure a clean break, but no less than 2 inches, prior to removing the surfacing or other facility.
g) Subgrade Preparation shall be constructed true to grade and depth as indicated on the Contract Drawings. Prior to the placement of aggregate base, subgrade material shall have a minimum relative compaction of ninety percent (90%) as determined by test method ASTM D557 and 2922,shall be thoroughly moistened with water without ponding to the satisfaction of the Engineer, the City inspector shall approve and verify relative compaction of subgrade.
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h) Aggregate Base shall be placed on a prepared sub-grade true to grade and depth as indicated on the Contract Drawings. Prior to the placement of concrete,
I. Aggregate Base shall have a minimum of relative compaction of ninety-five percent (95%) as determined by test method ASTM D557 and 2922, shall be thoroughly moistened with water without ponding, to the satisfaction of the Engineer, the City inspector shall approve and verify relative compaction of aggregate base.
II. City inspection of relative compaction of aggregate base shall occur no more than 2 working days prior to concrete pour. The City reserves the right to reinspect the relative compaction of the aggregate base if conditions change between the dates of original inspection and concrete pour that may affect compaction, such as saturation or disturbance of the material.
i) Fixed Forms:
a. Forms shall be timber and have a smooth straight upper edge, true smooth surfaced on the side where concrete will be placed, and sufficiently rigid to withstand the pressure and tamping of fresh concrete without distortion. Timber forms shall be free from deformation.
b. Timber forms shall not be less than one and one-half (1-1/2") inches thick after being surfaced except on curb returns, horizontal curves, and vertical curves where benders or thin plank may be used. The bender or thin plank shall be not less than one-half inch (1/2") cleated together. c. Forms shall be set carefully to alignment and grade and shall be held rigidly in place by stakes, spreaders, or clamps, and shall be braced so that no displacement will occur during the working of the concrete.
d. Sidewalk Forms shall be set with the upper edge true to line and grade, held rigidly in place by stakes placed on the outside of the forms, and set flush with the top edge of the form. The side forms shall not be removed less than twelve (12) hours after the finishing has been completed.
e. Curb Forms shall be equal to the full depth of curb or gutter. Curb forms shall be set to true line and grade and conform to existing curb. Forms shall be held rigidly in place by stakes placed at intervals not to exceed four (4’) feet. The form on the front of the curbs shall not be removed less than two (2) hour after the concrete has been placed or while the concrete is sufficiently plastic to slump.
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f. All forms shall be cleaned thoroughly and coated with a light oil. j) Concrete Placement:
a. No concrete shall be placed until the forms and compaction of aggregate base have been checked and approved by the
Inspector.
b. No concrete shall be placed when the air temperature is below forty degrees Fahrenheit (40°F) or during rain.
c. Before placing concrete, the aggregate base or subbase shall be properly moistened with water, and the form faces shall be oiled. d. Concrete shall be placed and compacted in forms without segregation. After placing, the concrete shall be
consolidated/vibrated sufficiently to produce a dense mass, struck off, and floated. Final finishing operations shall not proceed until all bleed water has evaporated from the surface. Sprinkling of dry cement to absorb excessive surface moisture shall not be allowed. e. Concrete shall be placed continuously between joints and brought to the required grade and section as the work progresses.
Sidewalk and top of curb sections shall slope towards the street at a cross slope no greater than of 0.25 inch per foot (2% maximum slope) unless otherwise specified in the Contract Documents or directed by the Engineer. Sections not complying with said cross slope shall be removed and reconstructed as directed by the Engineer and at the Contractor expense.
f. Concrete placement against existing asphaltic concrete paving shall not be allowed unless approved by the Engineer.
g. When sidewalk and curb and gutter is adjacent to one another, it shall be poured monolithically unless directed otherwise by the Engineer.
h. The area around utility poles, electroliers, wooden street sign posts, drop inlets and hydrants shall be blocked out during the initial placing of concrete.
i. All utility boxes of various types within the limits of work shall be placed at exact grade prior to placement of concrete.
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k) Finishing: Fresh concrete shall be struck off and compacted until a layer of mortar has been brought to the surface. The surface shall be finished to grade with a float, troweled to a dense, hard, smooth finish with no rock pulls, and have a medium broom finish. The medium broom finish and texture of the concrete shall be approved by the Engineer. Concrete adjacent to weakened plane joints and scored lines shall be finished with an edger tool. Brooming of sidewalk and curb and gutter shall be transverse to the line of traffic and/or in the direction of flow. The finished surface shall be free from blemishes and not vary more than 0.01 foot from an eight-foot (8’) straight edge, except at grade changes or curves.
A water flow test will be required to detect depressions in the new gutter during finishing of the concrete.
a. Joints: Weakened plane joints shall be installed at each side of structures, at the ends of curb returns, and at locations specified in the Contract Documents. Weakened plane joints and score lines shall conform to the latest City of Milpitas Standards Drawings and Contract Drawings and be determined in the field and approved by the Inspector.
b. Contact Joints shall be used where concrete is to be poured adjacent to existing concrete or where cold joints are created due to breaks in the concrete pouring sequence.
c. Dowel: All new concrete improvements shall be doweled into the existing concrete. The dowels shall be reinforcing steel and drilled and imbedded into the existing concrete with epoxy in
conformance of the latest City of Milpitas Standards Drawings and Contract Drawings. Dowels shall be nine (9”) long, installed 12 inches on center and begin six inches from each saw cut edge of trench or opening.
d. Curing Concrete shall be cured by means of the impervious membrane method or cure compound.
e. Curing Compound: The surface of the concrete and forms shall be kept continuously moist for a period of 72 hours.
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f. Membrane Curing: The concrete pavement shall be cured with an approved coating of approved emulsions of paraffin or silicone applied in quantities to insure a uniform protective coating on all surfaces and exposed edges. The application shall be made immediately upon the completion of the concrete pour and disappearance of the free surface moisture. In the event the application of the curing membrane is delayed, the concrete surface hall be moistened and kept damp, but care shall be taken that free surface moisture is not present when the curing compound is applied. After the membrane has been applied, care shall be taken that the surface film is kept intact and undamaged, and any section of the concrete surface damaged by rain or otherwise during the curing period (7 days) shall be retreated. g. Tolerance: The top and face of curb and gutter, sidewalk, and curb ramps shall not vary more than one-fourth inch (1/4”) from the edge of an eight feet (8’) straight edge when placed against the surface, except at grade changes or curves. The flowline of gutters shall be built and finished to allow continuous flow of water and shall be tested with water prior to initial concrete set so that it does not stand more than one-fourth inch (1/4”) deep at any location prior to final finishing. In no case will standing water be allowed in the flow line of the landing of a curb ramp. h. Sawcut: The existing concrete improvement shall be sawcut to the full depth where new concrete will conform to existing concrete.
The sawcut shall done in such a manner that spalling and cracking of the existing concrete does not occur. All damaged existing concrete which is to remain in place shall be replaced at the Contractor’s expense.
i. Surface Restorations: The Contractor shall restore any irrigation, landscaping and special surface treatments damaged or
encountered during the Work to an equivalent or better condition that existed prior to start of construction. Items that may be encountered, but not limited to, decorative pavement, red curbs, address painted on curbs, PG&E button indicators of Gas line on curbs, and etc. Utility marking shall be installed as follows: (1) the letter "S" shall be stamped on the face of curb where the sanitary sewer laterals intersect the curb, and (2) the letter "W" shall be stamped on the face of curb where the water services intersect the curb
j. Gutter width variations required to transition or to conform to existing curb and gutter conditions, or as directed by the Engineer, shall be included in the price paid per linear foot of curb and gutter and no additional payment will be made therefor.
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k. Curb and Gutter construction shall take place prior to asphalt concrete work and conform to the latest City Standard Drawings in the Contract Drawings. Prior to saw cutting existing
concrete/asphalt concrete, the Contractor shall layout the limits of removal for new curb and gutter in the field. The layout shall be approved by the Engineer. Removal of existing curb and gutter shall extend to the nearest joint. Asphalt concrete plug shall be installed after completion of curb and gutter. New curb and gutter shall be doweled into the existing concrete in accordance with City Standard Details.
l. Driveway construction shall take place prior to asphalt concrete work and shall conform to the latest City Standard Drawings in the Contract Drawings. Prior to saw cutting concrete/asphalt concrete, the Contractor shall layout the limits of removal for new driveway in the field. The layout shall be approved by the Engineer.
Removal of existing driveway shall extend to the nearest joint.
Asphalt concrete plug shall be installed after completion of driveway. New curb and gutter shall be doweled into the existing concrete in accordance with City Standard Details.
m. Sidewalk construction shall take place prior to asphalt concrete work and shall conform to the latest City Standard Drawings in the Contract Drawings. Prior to saw cutting concrete/asphalt concrete, the Contractor shall layout the limits of removal for new sidewalk in the field. The layout shall be approved by the Engineer.
Removal of existing sidewalk shall extend to the nearest joint.
New sidewalk shall be doweled into the existing concrete in accordance with City Standard Details. Utility Marking - The letter "S" shall be stamped on the face of curb where the sanitary sewer laterals intersect the curb, and the letter "W" shall be stamped on the face of curb where the water services intersect the curb. n. Curb Ramp Construction shall take place prior to asphalt concrete work and shall conform to the latest City Standard Drawings and Revised State Standard Plan as shown in Contract Drawings.
Prior to saw cutting concrete/asphalt concrete, the Contractor shall layout the limits of removal for new curb ramp in the field.
The layout shall be approved by the Engineer. Removal of existing curb ramp shall extend to the nearest sidewalk and curb and gutter joint. Work shall include the construction of the curb and gutter and sidewalk adjacent to the curb ramp and adjustment of utility boxes within the ramp. Asphalt concrete plug shall be installed after completion of driveway.
o. The Contractor shall layout ramps in the field using whatever tools are required to ensure the finished product meets ADA
requirements.
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p. Precast replaceable detectable warning surface shall be precast and set-in-place in wet concrete. Precast detectable warning surface shall be in conformance with the requirements established by the Department of General Services, Division of State Architect and be installed in conformance with the manufacturer's recommendations. The finish surfaces of the detectable warning surface shall be free from blemishes.
q. The Contractor shall provide a temporary ADA compliant path of travel in the vicinity of the removed ramps and sidewalks, especially at intersections. The Contractor shall maintain this path of travel until the new ramps and sidewalks have been installed and are open for public use. No demo work of sidewalk or ramps shall occur the last working day prior to a weekend. It is the Contractor’s responsibility to plan and schedule work accordingly to maintain path of travel at all times.
r. Asphalt Concrete Plug shall occur after completion of concrete construction and removal of forms, and no sooner than 48 hours after concrete is poured. Asphalt concrete plug shall be a minimum of 12” wide from the new concrete or as noted on the plans. Prior to saw cutting concrete/asphalt concrete, the Contractor shall layout the limits of removal for asphalt concrete plug in the field. The layout shall be approved by the Engineer.
Full compensation for conformance to the provisions in this section shall be considered as included in the contract price paid for the associated driveway, curb and gutter, and curb ramp items of work involved, and no additional compensation shall be allowed. See specifications regarding asphalt concrete conform. s. Asphalt Concrete Conform: Where the elevation of new curb and gutter, including depressed curb at curb ramps and driveways, is below adjacent existing asphalt concrete elevation, the existing asphalt concrete shall be sawcut back to provide a smooth transition between existing asphalt and new construction. This horizontal distance shall be a minimum of 3’ wide measured from the lip of gutter towards the center of the street. The areas beyond the initial 12” width of the asphalt concrete plug shall be excavated and graded so as to provide for the placement of 6” minimum of asphalt concrete as directed by the Engineer.
l) Control of Material:
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a. The Contractor shall hire a testing laboratory, approved by the City, to perform compaction testing for aggregate base in conformance with these Technical Provisions to the satisfaction of the City. The test results shall be submitted to the City. The Contractor shall be responsible for the cost of all testing. The Contractor shall provide a minimum of two compaction readings for each area of concrete placement as shown in the Contract Drawings and specified in this Technical Provision. The City’s Inspector shall determine, in the field, the location of the readings per each area.
b. The Contractor shall place concrete within 3 business days of compaction testing. The subgrade may require retesting if 3 business days elapses, or the subgrade is disturbed.
c. The Contractor shall hire a testing laboratory, approved by the City, to perform sampling and compressive strength for concrete in conformance with these Technical Provisions to the satisfaction of the City. For each day when placement of concrete occurs, the Contractor shall take a minimum of two sets of concrete samples for a compressive strength test in accordance with State of California Test Method No. 521 and 540. The City’s Inspector will determine when the samples shall be taken for each day. The test results shall be submitted to the City. The Contractor shall be responsible for the cost of all testing.
d. Tree Roots Inspection and Removal: No cutting of any part of any tree, including roots, shall be performed without the approval and direct supervision from the City Arborist. When tree roots are exposed in construction work zone, a root inspection is required by the City’s Arborist to determine the necessary root protection or removal measures or tree removal. The Contractor shall notify the Engineer three working days prior to scheduling a root inspection.
Inspections are limited to Tuesday thru Thursday or based on availability. Prior to inspection, the Contractor shall have the tree roots fully exposed for the City Arborist to review within the limits of work. All work associated with the root protection or removal, including root barrier, shall be included in the bid price and no additional compensation shall be allowed therefore.
e. Tree Removal: If the City Arborist determines the tree shall be removed during the root inspection, the Contractor shall remove the tree and stump no later than the following shift. The stump shall be grounded out to twenty-four (24”) below adjacent ground level. Or Additionally, the contractor shall remove all surface and adjacent subsurface roots as may be necessary to eliminate “humps” or mounds in the right of way and adjacent to the stump.
All areas are to be left flat and meet original grade. The area will then be backfilled with clean, pulverized topsoil to the level of the adjoining grade.