1400 SEINER DR 2018-01-01 MF Import

PORT OF EVERETT W MARINE VIEW DR IMPROVEMENTS CIP N0. 3•0-003-09 PROJECTNO. PD-WM•20006-01 The Contractor shali prepare untreated shoulders and traffic islands by blading and compacting to provide a sound base `or paving and shall omil the prime coat treatment. The HMA shall be constructed on the prepared subgrade. It the Contractor protects the completed untreated surfacing materials to the degree that the surface meets the requirements of Section 5-02.3(2)A at the time of construction of the prime �oat or the construction of the pavement if the prime coat is not required, the Contractor will not be required lo perfortn the work specified in Section 5•02.3(2)A but shall be compensated for the item ot work preparation of untreated roadway. 5-04.3(5JC Crack Sealing When the proposai includes a pay item for crack sealing, all cracks and joints Y.•inch and greater in width shall be cleaned with a stiff•bristled broom and compressed air and then shall be filled completely with sand slurty. The sand slurry shall consist of approximately 20 percent CSS-1 emulsified asphalt, approximately 2 percent Portland cement, water (if required), and the remainder ciean U.S. No. 4-0 paving sand. The components shall be lhoroughly mixed and then poured into the cracks and joints until full. The tollowing day, any cracks or joints that are not completely filled shall be topped off with additional sand slurry. After the sand slurry is placed, the filler shall be struck off flush with the existing pavement surface and allowed to cure. The HMA overlay shall not be piaced until the slurry has (ully cured. The requirements of 1-06 will not apply to the Porlland cement and paving sand used in the Sand Slurry. 5-04.3(5)E Pavement Repair The Contractor shall excavate pavement repair areas and shall backfill these with HMA in accordance with the details shown in the Plans and as staked. The actual excavation depth may vary to a maximum depth of 1-foot maximum, depending upon �vhere stable foundation material is encountered, as detertnined by the Engineer. The minimum widlh of any pavement repair area shall be 3 feet unless shown otherwise in the Plans. All pavement repair areas shall be sawcut be(ore removal, or shall be removed by a pavement grinder approved by the Engineer. Asphalt for tack coat shall be required as specified in Section 5-04.3(5)A, and shall be appiied to all edges of existing pavement in the pavement repair area. The Contraclor shall excavate only within one iane at a time. The areas shall be excavated, backfilled, and compacted within the same day's working shift, in accordance with the details shown in the Plans and to the satisfaction of the Engineer. Excavated materials will become the property of the Contractor for disposal off the right of way. The Contractor shall conduct the excavation operations in a manner that will protect the pavement areas not designated to be removed. Pavement not designated to be removed that is damaged as a result of the Contractors operations shall be repair:d by the Contractor to the satisfaction of the Engineer at no cost to lhe Contracting Agency. Page 12 of 50