Earthwork Solutions, LLC 1/30/2025

Fulton Street Pedestrian Bicycle Corridor PAGE 81 OF 114 CONTRACT FEDERAL AID # TAP-0420(026) WO #3785 September 6, 2024 When the surface of the existing pavement or old base is irregular, the Contractor shall 1 bring it to a uniform grade and cross section as shown on the Plans or approved by the 2 Engineer. 3 4 Preleveling of uneven or broken surfaces over which HMA is to be placed may be 5 accomplished by using an asphalt paver, a motor patrol grader, or by hand raking, as 6 approved by the Engineer. 7 8 Compaction of preleveling HMA shall be to the satisfaction of the Engineer and may 9 require the use of small steel wheel rollers, plate compactors, or pneumatic rollers to 10 avoid bridging across preleveled areas by the compaction equipment. Equipment used 11 for the compaction of preleveling HMA shall be approved by the Engineer. 12 13 Before construction of HMA on an existing paved surface, the entire surface of the 14 pavement shall be clean. All fatty asphalt patches, grease drippings, and other 15 objectionable matter shall be entirely removed from the existing pavement. All 16 pavements or bituminous surfaces shall be thoroughly cleaned of dust, soil, pavement 17 grindings, and other foreign matter. All holes and small depressions shall be filled with an 18 appropriate class of HMA. The surface of the patched area shall be leveled and 19 compacted thoroughly. Prior to the application of tack coat, or paving, the condition of 20 the surface shall be approved by the Engineer. 21 22 A tack coat of asphalt shall be applied to all paved surfaces on which any course of HMA 23 is to be placed or abutted; except that tack coat may be omitted from clean, newly paved 24 surfaces at the discretion of the Engineer. Tack coat shall be uniformly applied to cover 25 the existing pavement with a thin film of residual asphalt free of streaks and bare spots at 26 a rate between 0.02 and 0.10 gallons per square yard of retained asphalt. The rate of 27 application shall be approved by the Engineer. A heavy application of tack coat shall be 28 applied to all joints. For Roadways open to traffic, the application of tack coat shall be 29 limited to surfaces that will be paved during the same working shift. The spreading 30 equipment shall be equipped with a thermometer to indicate the temperature of the tack 31 coat material. 32 33 Equipment shall not operate on tacked surfaces until the tack has broken and cured. If 34 the Contractor’s operation damages the tack coat it shall be repaired prior to placement 35 of the HMA. 36 37 The tack coat shall be CSS-1, or CSS-1h emulsified asphalt. The CSS-1 and CSS-1h 38 emulsified asphalt may be diluted once with water at a rate not to exceed one part water 39 to one part emulsified asphalt. The tack coat shall have sufficient temperature such that 40 it may be applied uniformly at the specified rate of application and shall not exceed the 41 maximum temperature recommended by the emulsified asphalt manufacturer. 42 43 5-04.3(4)A Crack Sealing 44 45 5-04.3(4)A1 General 46 When the Proposal includes a pay item for crack sealing, seal all cracks ¼ inch in width 47 and greater. 48