R2005-35 AUTHORIZING AWARD OF ANCHOR BOAT PURCHASE

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ti . • DE�,PAR�'MENT OF WATER MANAGEMENT � Memorandum No. 2005-OS March 11, 2005 TO: Honorable Mayor and City Council � FROM: Steve Garman, City Manager John A. Smith, Assistant City Manager for Public Services Keith D. Alexander, Director of Water Management �� , SUBJECT: Lake Decatur Dredging Project - Anchor Boat Purchase SUMMARY RECOMMENDATION: Council adopt the attached Resolution authorizing the purchase of an anchor boat from Dredging Supply Company for$75,000. BACKGROUND: We have completed our first season of dredging and have removed 10% of the sediment that will be removed from Basin 6 of Lake Decatur. We anticipate dredging there until the fall of 2007. The equipment will then be moved to the Big Creek area of Basin 1 where the second phase of dredging will begin in 2008. Upon completing our first season it became readily apparent that City staff are in need of an anchor boat to increase operational efficiency. Our original plans and equipment purchases were based on a dredge tender being able to handle the duties of fuel transport and fueling, equipment and pipeline work platform, and to set and pull the dredge's large 500 pound anchors. The dredge tender was a relatively minor purchase of $180,567 when compared to the project's overall estimated expenses of$26,000,000. It is also critical to maintaining high productivity. Due to the depth of sediment that the dredge anchors sink into, the stumps that they lodge themselves against, the difficulty in removing the anchors, the importance of having a second workboat when the dredge tender is out of service for repairs, or when the dredge tender is being used for other tasks, staff are recommending the purchase of an anchor boat. A used anchor boat is available from Dredging Supply Company (DSC) which is the firm that constructed the City's high quality dredge and booster pump stations. The boat was built by DSC in 1993, has recently been refurbished, and is ideal for setting and removing dredge anchors. Two City staff persons inspected and tested the boat last month. Dredging operations will resume in mid March. Staff are recommending the purchase of the boat for $75,000, which includes freight and 8 hours of staff training. A used anchor boat in good condition, from a reliable firm, and at a reasonable price, is difficult to find. If staff discover that the boat is not suitable for our project within the first 250 hours of use, DSC has stated that the City can return the boat for a full purchase price reimbursement, minus freight.