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� r� <br /> COUNCIL COMMUNICATION FORM <br /> Engineering & Infrastructure Memorandum <br /> No. 2004-72 <br /> September 13, 2004 <br /> TO: Honorable Mayor Osborne and City Council <br /> FROM: Steve Garman, City Manager <br /> Stephen Swanson, Director Engineering&Infrastructure <br /> Matthew Newell, City Engineer�iG!/� <br /> Richard Berard, Water Projects Engineer L��'?� <br /> SUBJECT: Lake Decatur Dam Rehabilitation Project 2004 <br /> Upstream Face of Spillway, City Project 04-20 <br /> SUMMARY RECOMMENDATION: II <br /> It is recommended by staff that the City Council adopt the attached Resolution authorizing an <br /> agreement with Hanson Professional Services, Inc., to provide engineering services for the <br /> design of repairs to the upstream face of Lake Decatur Dam for a sum not to exceed $40,000. I, <br /> BACKGROUND: I <br /> The City owns and operates Lake Decatur Dam located on the Sangamon River. The dam was ' <br /> constructed in 1922 to ensure a reliable source of water for the City's water treatment plants. In ' <br /> December, 2003, a marine inspection contractor, J.F. Brennan Co. performed an underwater <br /> inspection of the upstream surfaces of the concrete spillway. The inspection report identified a <br /> number of deteriorated areas mainly caused by freeze thaw action. While the current condition <br /> of the dam does not pose an immediate threat to its structural integrity, it would lead to more <br /> extensive repairs if not rehabilitated at this time. <br /> The preparation of design drawings and specification requires the services of a qualified <br /> engineering consultant. Four engineering firms were invited to submit proposals. Hanson <br /> Professional Services, Inc. was chosen as the best qualified consultant from the two firms that <br /> submitted proposals. <br /> POTENTIAL OBJECTION: There are no known objections to this <br /> resolution and agreement. <br />