Interwest Construction Inc 2/8/2019

1 CITY OF EVERETT SPECIAL PROVISIONS DIVISION 5 — SURFACE TREATMENTS AND PAVEMENTS 1 Supplement Division 5 of the Standard Specifications by adding the following: 5-06 PAVEMENT PATCHING 5-06.1 Description This Work shall consist of the reconstruction and patching of trenches and other excavations in paved streets and other paved areas. 5-06.2 Materials ' Provide materials conforming to the requirements specified for the materials in Sections 5- 04 & 5- 05 of the Standard Specifications except as modified by these Special Provisions. For HMA pavement patching provide HMA CL 1/2", PG 64-22 as specified in Section 5-04 of the Standard Specifications. Provide asphalt for temporary pavement patch as either: cold mix asphalt (MC 250) per Section 9-02 of the Standard Specifications or hot mix asphalt (HMA CL 1/2", PG 64-22). Mineral aggregate of MC 250 shall meet the same requirements as the aggregates used in HMA CL 1/2", PG 64-22. ' For cement concrete base pavement patching provide Type III (H.E.S.) with minimum 4,000 psi 28-day compressive strength and having curing time of five days. For cement concrete surface pavement patching provide concrete mix design in accordance ' with 5-05.3(1) Concrete Mix Design for Paving of the Standard Specifications. Provide crushed surfacing top course used for pavement patching conforming to the requirements of 9-03.9(3) of the Standard Specifications. 1 5-06.3 Construction Requirements 5-06.3(1) General Schedule pavement patching to accommodate the demands of traffic and perform as rapidly as possible to provide maximum safety and convenience to public traffic. Placing and compact the trench backfill and the preparation and compaction of the subgrade in accordance with the various applicable sections of the Standard Specifications except as modified by these Special Provisions. Before the pavement patch is to be constructed saw cut the pavement so that the ' marginal edges of the patch will form a rectangular shape with straight edges and vertical faces. Provide signs, barricades, lights and other warning devices in accordance with the requirements of the "Manual on Uniform Traffic Control Devices" and they maintain 24- hours a day until the patching work is completed and ready for traffic. Complete subgrade compaction prior to the required patching. Compact subgrade to 95- percent as determined by the ASTM D2922 (nuclear method). 5-06.3(2) Cement Concrete Pavement Patch Place cement concrete pavement in accordance with 5-05.3 of the Standard Specifications and these Special Provisions after the Crushed Surfacing Top Course subgrade for the pavement has been constructed and compacted to line and grade. ' Cleveland Avenue Division 5—SURFACE TREATMENTS November 2018 Sewer System Replacement and AND PAVEMENTS Storm Water Separation Work Order No. UP3398 SP-165