2400 33RD ST CONTRACT AGREEMENT 2016-01-01 MF Import

ATTACHMENT A TO SECTION 01900 REVISIONS TO THE STANDARD PLANS AND SPECIFICATI�NS � 627 South 371h Street Washo�gal, WA 98671 (800) 733-8523 Hancor Hi-Q Hancor, Inc. 24" 6001 Belmore St. SW Olympia, W A 98501 (800) 537-9520 AASHTO M304 Corrugated Polyvinyl Chloride (PVC) Storm Sewer Pipe: PW Pipe Pacific Western Extruded Plastics 15" P.O. Box 10049 Eugene, OR 97440 MANHOLES, INLETS, AND CATCH BASINS Descriqtion Section 7-05.1 is supplemented with the followinp: Structures shall conform to the requirements ot the Citv of Everett Desiqn and Construction Standards and Specifications for Development, Section 4-2.3(3), item 1. Construction Requirements Sectian 7-05.3 is supplemented with ihe following: Adjusting Manholes and Catch Basins to Grade Section 7-05.3(t) is supplemented with lhe (ollowing: Manholes, catch basins, and other structures shall not be adjusted to final grade until the pavement is completed. Tiie center of each structure shall be carefully relocated from re(erences previously established by the Contractor. The pavement shall be cut in a restricted area and base material be removed to permit removal of the cover. The structure shall then be brought to proper grade utilizing the same methods of conslruciion as (or ihe struciure itself. The cast uun (rame shall be placed on the concrete blocks and wedged up to the desired grade. The asphalt concrete pavement shall be cut and removed ro a neat circle, the diameter of which shall be equal to outside diameter ot the cast iron irame pius 2 feet. The base materials and crushed rock shall be removed and Class 3000 concrete shall be placed so ihat the entire volume of the excavation is replaced up io within, but not to exceed, 1'/z inches of the finished pavement surface. On the following day, the edges ei the asphalt concrete pavement, and ihe outer edge of the casting shall be painted with hot asphalt cement. Asphait concrete shall then be placed and compacted with hand tampers and a patching ro!ler. Asphalt �oncrete and cement concrete shall be considered as included in the unit price of ihe structure being adjusted. The completed patch shalt match the existing paved surface tor texture, density, and uniformity of grade. The joint between the patch and the ex ating pavement shall then be carefully painted with hot asphalt cement or asphalt emulsion and shall be immediately covered with dry paving sand before the asphalt cement solidifies. The inside throat ot ihe siructure shall be thorouglily mortared and plastered. Connections to Existing Manholes Sectian 7-05.3(3) is supplemented with the (ollowing: Capital Projects Commuter Rail Attachment A to Section 01900 - 17 IFB No. RTA/CP 21-G6 � Everett Station Phase 2REVISIONS TO THE STANDARD PLANS AND SPECIFICATIONSAddendum No.4