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....�,a . <br /> COUNCIL COMMUNICATION FORM <br /> Engineering & Infrastructure Memorandum <br /> NO. 2004-81 <br /> October 26, 2004 <br /> TO: Honorable Mayor Osborne and City Council <br /> FROM: Steve Garman, City Manager <br /> Stephen Swanson, P.E.,Director of Engineering & Infrastructure ` � <br /> Mathew C. Newell, P.E., City Engineer s•�+� <br /> Douglas R Nooden,Assistant City Engineer � <br /> SUBJECT: Sanitary Sewer Trenchless Point Repairs, City Project 04-29 <br /> SUMMARY RECOMMENDATION: <br /> It is recommended by staff that the City Council approve the attached resolution awarding the <br /> contract for Sanitary Sewer Trenchless Point Repairs, City Project 04-29, to Tele Scan, Inc., <br /> as the lowest, responsible bidder in the amount of $257,545.00, and that the Mayor be <br /> authorized to execute the contract, and the City Clerk to attest. <br /> BACKGROUND: <br /> The purpose of this project is to repair numerous structural deficiencies of the sanitary sewer <br /> system with a minimum of disturbance to service. Structural deficiencies include broken and <br /> missing pieces of pipe, heavily offset pipe joints, and voids. All of the project locations were <br /> derived from the annual televising and inspection reports and videos. ' <br /> The Trenchless process involves the insertion of a flexible lining through a manhole to the I <br /> location of the damaged section of pipe. Once the lining is in place, it is re-formed to fit <br /> tightly against the walls of the host pipe. The liner is then heated to activate a resin system, <br /> causing the pipe lining to cure, and form a new structural pipe within the host pipe. During <br /> this process, excess resin is forced into cracks, joints and irregularities of the host pipe, <br /> resulting in an effectual bond between new and old pipe. When curing is complete, lateral <br /> lines are re-opened using a remote controlled cutting tool. <br /> The project plans and specifications were prepared by Engineering Division staff. The project '' <br /> was advertised October 1, 2004, and bids were opened on October 22, 2004. The results for � <br /> the letting are as follows: <br />