Diverse Earthworks, Inc 9/16/2024

CITY OF EVERETT WEST MARINE VIEW DRIVE/ALVERSON AND 41 ST ST/GRAND AVE PEDESTRIAN IMPROVEMENTS STATE FUND# HLP-PB15(032) WO #3630 July 25, 2024 88 1 7-12.3 Construction Requirements 2 3 Section 7-12.3 is supplemented by the following: 4 5 Valve and Valve Box Installation: 6 The valve and valve box shall be set plumb with the valve box centered on the 7 operator nut. Valve boxes shall be set flush in pavement and gravel roads. Asphalt 8 concrete is required in gravel roads 2’ around the valve box. When the top of the 9 valve operating nut is more than 3’ below finished grade, a valve operating extension 10 shall be installed per Standard Plan No. 505. The minimum extension length shall be 11 12". 12 13 The Contractor shall remove existing valve boxes on water mains to be abandoned. 14 Backfill for the void shall be excess material from trench excavation or "Gravel 15 Borrow" as directed by the Engineer. If valve is in the street, an asphalt patch shall 16 be constructed in accordance with City of Everett Standards. 17 18 Tapping Sleeve and Valve: 19 All wet taps to existing water mains shall be done by City Utility Department personnel. 20 Contractor shall provide all materials and parts to perform all pavement sawing, 21 pavement removal, excavations, shoring, and traffic control and other work required 22 to install the tapping sleeve and valve assembly. City personnel will perform the tap 23 of the existing main after the Contractor has the site ready, the parts on hand, and is 24 ready for the tapping operation. City personnel shall not enter any excavation not 25 shored in conformance with the requirements of WISHA, RCW 49.17 including WAC 26 296-155. City personnel shall be given at least 5 business days minimum notice for 27 each tap. The City of Everett shall thereafter determine the date and time that each 28 tap shall be made. Contractor shall be responsible for backfill, compaction, and 29 restoration of the pavement once the tapping sleeve and valve assembly has been 30 installed by the City and tested. 31 32 Adjusting Valve Boxes to Grade: 33 Where shown in the plans, existing valve boxes and covers shall be adjusted to the 34 grade as staked or otherwise designated by the Engineer. The adjustment of the 35 valve box to grade by the use of riser rings is not allowed. 36 37 Removal operations shall be conducted to prevent damage to the valve boxes. Any 38 parts or materials damaged due to the Contractor’s operations shall be replaced at 39 his expense. 40 41 The Contractor shall conduct his valve box adjustments so that the fully-adjusted box 42 allows the respective valve to be fully operational. The Contractor shall remove all 43 debris from the adjusted valve boxes to ensure such operational condition. 44 45 7-12.4 Measurement 46 47 Adjust Valve Box to Grade, shall be measured per Each. 48 49 50 7-12.5 Payment 51