R2009-244 REJECTING THE BIDS - Laserfiche WebLink

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1. Repairs to the upstream face of the dam. 2. Rehabilitation of the mechanical systems that raise and lower the sluice gates on the north side of the dam. 3. Replacing the seal systems for the bascule gates and sluice gates. 4. Removal of gate heaters along the bascule gates. 5. Installation of a concrete patch on the downstream spillway of the dam. 6. Replace all eight cylinders on the bascule gates of the dam. The estimated total project cost is $3 million. BID INFORMATION AND RESULTS: The drawings and specifications were prepared by HDR, Inc., a sub-consultant of Hanson Professional Services, Inc. The project was advertised by the City on October 7, 2009, and bids were opened on October 29, 2009. The results for the letting are as follows: Bidder Bid Price Compared to Engineer's Estimate Over(-Under) Engineer's Estimate $620,000.00 -- Douce-Hydro, Inc. $788,576.00 27.19% The bid received from Douce-Hydro in the amount of$788, 576 is $168,576 (27.19%) more than the Engineer's Estimate. For this bid the pressure specifications for the replacement cylinders was significantly higher than the operating pressures of the existing system in order to provide a very conservative design. The high design pressure limited the number of potential bidders. Hanson has reviewed the bid and provided a recommendation(attached) to reject the bid received by Douce-Hydro, Inc. They also recommend that the specifications be modified to allow the cylinders to be manufactured closer to the proper working pressure and that the cylinder procurement be included in the bid documents for the 2010 Lake Decatur Dam Rehabilitation project. Staff concurs with Hanson's recommendation that the bid for the hydraulic cylinders be rejected. Staff intends to advertise the 2010 Dam Rehabilitation project in December with an expected award in February 2010. By adding the bascule gate cylinders to this project it is expected that the cylinders can still be received in time to install them in late 2010. POTENTIAL OBJECTION: There are no known objections to this amendment. INPUT FROM OTHER SOURCES: Hanson Professional Services, HDR Engineering, Department of Water Management STAFF REFERENCE: Keith Alexander, Director of Water Management, Richard Marley, Public Works Director, Matt Newell, City Engineer, and Curt Cassidy, Civil Engineer IL Richard Marley and Keith Alexander will be in attendance at the City Council meeting to answer any questions of the Council on this item. Page � 2