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CITY OF EVERETT SPECIAL PROVISIONS <br /> <br />Beverly Lake Water Quality Retrofit Division 5 – SURFACE TREATMENTS August 2023 <br /> <br />AND PAVEMENTS <br />WO No. – UP3745 SP - 180 <br />5-04.5 Payment <br />Payment for bid items of Work completed pursuant to the Contract Documents will be as <br />described in Division B – Bid Item Descriptions of these Special Provisions and Section 1-09 <br />MEASUREMENT AND PAYMENT of the Standard Specifications. <br /> <br />Supplement Division 5 of the Standard Specifications by adding the following: <br />5-06 PAVEMENT PATCHING <br />(******) <br />5-06.1 Description <br />This Work shall consist of the reconstruction and patching of trenches and other excavations <br />in paved streets and other paved areas. <br />5-06.2 Materials <br />Provide materials conforming to the requirements specified for the materials in Sections 5- <br />04 & 5- 05 of the Standard Specifications except as modified by these Special Provisions. <br />For HMA pavement patching provide HMA CL 1/2”, PG 64-22 as specified in Section 5-04 of <br />the Standard Specifications. <br />Provide asphalt for temporary pavement patch as either: cold mix asphalt (MC 250) per <br />Section 9-02 of the Standard Specifications or hot mix asphalt (HMA CL 1/2”, PG 64-22). <br />Mineral aggregate of MC 250 shall meet the same requirements as the aggregates used in <br />HMA CL 1/2”, PG 64-22. <br />For cement concrete base pavement patching provide high early strength cement concrete. <br />Provide minimum 4000 psi mix having minimum 3000 psi compressive strength after curing <br />time of three days. <br />Provide crushed surfacing top course used for pavement patching conforming to the <br />requirements of 9-03.9(3) of the Standard Specifications. <br />5-06.3 Construction Requirements <br />5-06.3(1) General <br />Schedule pavement patching to accommodate the demands of traffic and perform as <br />rapidly as possible to provide maximum safety and convenience to public traffic. <br />Placing and compact the trench backfill and the preparation and compaction of the <br />subgrade in accordance with the various applicable sections of the Standard <br />Specifications except as modified by these Special Provisions. <br />Before the pavement patch is to be constructed saw cut the pavement so that the <br />marginal edges of the patch will form a rectangular shape with straight edges and vertical <br />faces. <br />Provide signs, barricades, lights and other warning devices in accordance with the <br />requirements of the "Manual on Uniform Traffic Control Devices" and they maintain 24- <br />hours a day until the patching work is completed and ready for traffic. <br />Complete subgrade compaction prior to the required patching. Compact subgrade to <br />95-percent as determined by the ASTM D2922 (nuclear method). <br />5-06.3(2) Cement Concrete Pavement Patch <br />Place cement concrete pavement in accordance with 5-05.3 of the Standard <br />Specifications and these Special Provisions after the Crushed Surfacing Top Course <br />subgrade for the pavement has been constructed and compacted to line and grade.