R2010-148 ACCEPTING THE BID AND AUTHORIZING CONTRACT

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. ` PUBLIC WORKS MEMORANDUM NO. 2010- 39 DATE: July 12, 2010 TO: Honorable Mayor McElroy and City Council FROM: Ryan P. McCrady, City Manager Keith D. Alexander, Director for Water Management Richard G. Marley, P.E., Public Works Director SUBJECT: 1500 Block West Macon Street Reconstruction Project, City Project 2010-03 SUMMARY RECOMMENDATION: It is recommended by staffthat the City Council approve the attached resolution which authorizes awarding the contract for the 1500 Block West Macon Street Reconstruction Project, City Project 2010-03, to Christy-Foltz, Inc., as the lowest, responsible bidder in the amount of$288,530, and that the Mayor be authorized to execute the contract, and the City Clerk to attest. PRIOR COUNCIL ACTION: There has been no previous council action on this project. BACKGROUND: On May 25, 2010, a 56 year old 12" water main on West Macon Street, east of Dennis Avenue, burst, undermining over 100 feet of historic brick pavement. A second water main break, on the same line and near the same location two nights later increased the damage. The extensive damage to the street sub-base and surface caused by the high pressure water discharging from the water main is beyond the normal maintenance repairs performed by City crews. Total reconstruction of this portion of the street is required. Due to the estimated costs involved, alternate bids were requested. Alternate 1 replaces the damaged street section with brick pavement. Alternate 2 replaces the damaged street section with concrete pavement. As part of the base bid, the 12" water main on Macon Street between Dennis Avenue and Taylor Avenue will be lined with a cured-in-place liner. This water main was installed in 1954 and the portions that broke were heavily corroded. It is necessary to strengthen the main along with the street work. Cured-in-place lining of water mains is a relatively new procedure based on technology that has been used for many years in sanitary sewers. A fabric tube is saturated with resin and pulled through the water main where it is inflated against the old pipe while the resin hardens to form a new pipe within the old water main. This method of rehabilitation results in a new pipe that is installed with limited street excavation and minimal disruption to area residents. Page � 1