Thomco Construction Inc. 6/14/2021

CITY OF EVERETT SPECIAL PROVISIONS Provide laser control equipment approved by the Engineer for setting pipe grades. 7-08.3(2)H Sewer Line Connections Supplement 7-08.3(2)H by adding the following: Reconnect existing storm drain lines to new sanitary sewer line in accordance with the Plans, these Special Provisions and the Standard Specifications. Provide a minimum 8-inch diameter pipe for new storm drain line. Provide manufactured couplers for joining dissimilar size and type of existing storm drain line pipe. Engineer will not allow vertical connections of drain lines to sewer main between manholes without Engineer's prior approval. Reconnecting drain lines shall be included with the Work with no direct compensation made. 7-08.3(2)1 Side Sewer Connections Supplement 7-08.3(2)1 by adding the following: Make typical side sewer connections in accordance with COE Standard Drawing No. 602. 7-08.3(2) Laying Pipe 7-08.3(3) Backfilling Delete the first paragraph of 7-08.3(3) and substitute the following: Perform trench backfilling only after inspection and approval of the installed pipe bedding zone backfill. Refer to COE Standard Drawing No. 614, and the Plans for typical trench section backfill and compaction requirements. If the Engineer determines native material is not suitable for use as trench backfill, use "Gravel Borrow" conforming to 9-03.14(1) of the Standard Specifications. If there is an excess of suitable backfill material obtained from trench excavation at one location on the project, use it at other locations on the project or dispose of at an approved disposal site. The cost of transporting the excess backfill material is considered incidental to the Contract with no direct compensation made. Use Controlled Density Fill in lieu of select trench backfill for fill above pipe zone at street crossings and as directed by the Engineer in other areas where in order to prevent pavement patch settlement requires high density backfill placement or effective backfill compaction is not possible. Delete the first sentence of the third paragraph. Delete the third and fourth sentences of the fourth paragraph. 7-08.3(4) Plugging Existing Pipe Delete the first paragraph of 7-08.3(4) and substitute the following: Where shown on the plans to plug and seal existing water main, sanitary sewer and storm drainage pipe plug existing pipe a minimum distance of 2-feet from the inlet end with cement grout and abandon in place. 7-08.4 Measurement Delete all paragraphs in 7-08.4 and substitute the following: Bid items of Work completed pursuant to the Contract Documents will be measured as described in Division B — Bid Item Descriptions of these Special Provisions and Section 1-09 MEASUREMENT AND PAYMENT of the Standard Specifications. 7-08.5 Payment ' Delete all paragraphs in 7-08.5 and substitute the following: Water Main Replacement"V" Division 7—STORM,SEWER,WATER April,2021 WO No.—UP3730 SP—171