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I <br /> CITY OF EVERETT SPECIAL PROVISIONS <br /> The thickness shall be one inch thicker than the existing concrete base or six inch, <br /> whichever is greater. The top surface of the concrete patch shall match the top <br /> surface of the existing concrete base; in no case shall the top of the concrete be higher <br /> than the top of the existing concrete base. Brush finishing will not be required. Joints <br /> shall be placed to match existing or as directed by the Engineer. 1 <br /> HMA plant mix shall not be placed until three days after the cement concrete base has <br /> been placed or otherwise permitted by the Engineer. The HMA plant mix shall not be <br /> placed until the concrete base has received a tack coat of CRS-2 at a rate of 0.12 to <br /> 0.20-gallons per square yard. The edges of the existing asphalt and castings shall <br /> also be painted with the tack coat. The HMA pavement shall then be placed, leveled, <br /> and compacted to conform to the surface of the existing HMA. Immediately thereafter, <br /> all joints between the new and original asphalt pavement shall be painted with CSS-1 <br /> asphalt emulsion and covered with dry sand before the asphalt solidifies. <br /> Asphalt shall be compacted to 92-percent of maximum density as determined by <br /> WSDOT Test Method 705. <br /> 5-06.3(4) HMA on Granular Base <br /> After the Crushed Surfacing Top Course subgrade has been leveled and compacted, <br /> HMA CL 1/2", PG 64-22 shall be placed to a thickness of one inch greater than the <br /> existing asphalt pavement depth or to a minimum of three inches, whichever is greater. <br /> Asphalt shall be compacted to 92-percent of maximum density as determined by <br /> VVSDOT Test Method 705. <br /> 5-06.3(5) Untreated Roadway Surfaces <br /> Existing crushed rock, gravel, and oil mat streets shall be restored with Crushed <br /> Surfacing Top Course to a compacted depth of four inches within the neat lines of the <br /> trench. Crushed surfacing shall be mixed, placed, spread and shaped in accordance <br /> with the requirements of Section 4-04 of the Standard Specifications. <br /> Section 5-06.3(6) is deleted and replaced by the following: I <br /> 5-06.3(6) Temporary Roadway Patching <br /> General <br /> Temporary roadway patch refers to Contractor developed means and methods to <br /> provide temporary restoration of existing roadway surfaces removed to accommodate <br /> construction. Temporary roadway patch also includes any work required to protect <br /> newly installed permanent roadway surfacing prior to it being opened to traffic. <br /> Temporary roadway patch shall be in place as required to meet lane closure <br /> restrictions per Section 1-07.23. <br /> Description ' <br /> The bid item shall include all labor, materials, tools and equipment to furnish, place, <br /> and maintain the temporary patch in such a manner to prevent traffic hazards until the <br /> permanent pavement surface has been installed and is open to traffic, including but not ' <br /> limited to removal and/or disposal of the temporary patch materials. <br /> Upon failure of the Contractor to immediately provide corrective action to place and/or <br /> repair temporary roadway patch when ordered by the Engineer, the Contracting <br /> Agency may, without further notice to the Contractor or Surety, perform any of the <br /> above and deduct all costs from the Contractor's payment. <br /> 1 <br /> Alverson Stormwater Separation February 2019 <br /> WO No. - UP3660 Division 5—SURFACE TREATMENTS AND PAVEMENTS <br /> SP-150 <br />