R2005-61 ACCEPTING THE BID AND AUTHORIZING A CONTRACT

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J COUNCIL COMMUNICATION FORM Engineering & Infrastructure Memorandum NO. 2005-28 May 5, 2005 TO: Honorable Mayor Osborne and City Council FROM: Steve Garma ity Manager / Stephen Swans n,P.E.,Director of Enginee ing& Infrastructure � Mathew C. Ne ell, P.E., City Engineer� Richard N. Berard, Civil Engineer II Ci%� SUBJECT: Lake Decatur Dam Repairs, City Project 04-20 SUMMARY RECOMMENDATION: It is recommended by staff that the City Council approve the attached resolution awarding the contract for Lake Decatur Dam Repairs, City Project 04-20, to J. F. Brennan Co., Inc., as the lowest, responsible bidder in the amount of$167,675.00, and that the Mayor be authorized to execute the contract, and the City Clerk to attest. BACKGROUND: The City owns and operates the Lake Decatur Dam located on the Sangamon River. The dam was constructed in 1922 to ensure a reliable source of water for the City's water treatment plants. In December, 2003, J. F. Brennan Co., Inc., performed an underwater inspection of the upstream surfaces of the concrete spillway. The inspection report identified a number of deteriorated areas mainly caused by freeze thaw action. While the current condition of the dam does not pose an immediate threat to its structural integrity, it would lead to more extensive repairs if not rehabilitated at this time. In September, 2004, the City Council awarded an Engineering Services Agreement to Hanson Professional Services for the preparation of design drawings and specifications for the Lake Decatur Dam Repair Project. The project plans and specifications were prepared by Hanson Professional Services. The project was advertised April 13, 2005, and bids were opened on May 3, 2005. The results for the letting are as follows: Compared to Engineer's Est. Bidder Bid Price Over(-Under) Engineer's Estimate $ 245,750.00 ---- J. F. Brennan Co., Inc. $ 167,675.00 (31.8 %) Pro-Dive, Inc. $ 188,297.00 (23.4 %)