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<br />Honorable Mayor and Members of the City Council: <br /> <br />BACKGROUND <br /> <br />As part of the 2003-2004 capital improvement program, the S-8 diversion structure was <br />identified as needing replacement. The structure is over 25 years old and has deteriorated, <br />with portions of the vaults concrete wall spauling off and exposing the reinforcing steel within <br />the structure. The sluice gates that control flows in and out of the structure have corroded and <br />deteriorated. The flow structure is approximately 8 feet wide, 17 feet long and 25 feet deep. <br />Three sluice gates operate and direct sewer flows through the structure. Recently, one of the <br />sluice gates has failed. The gate stem has pulled away from the gate and has left the gate <br />inoperable. Fortunately, the gate is stuck in the open position and flows are being directed <br />through the pump station. The other two gates were installed at the same time and are <br />considered to be in a similar poor condition. Therefore, there is an immediate need to replace <br />the structure and appurtenant gates and hardware. Funding is shown below and there is a <br />current shortfall to complete the project. Staff recommends that City Council authorize the <br />transfer of $154,000 from the unallocated reserve in the Sewer Replacement Fund. <br /> <br />Sealed bids for this project were opened on February 21, 2006. There were a total of four <br />bids received, which ranged from $396,312 to $512,400, as compared to the engineer's <br />estimate of $312,000. The low bid of $396,312 was received from Mitchell Engineering. All <br />bid documents were found to be in order. Said contractor has performed similar work and <br />experience and the work was verified to be satisfactory. <br /> <br />Bids were higher than anticipated due to the difficulty in finding steel foundries to manufacture <br />the cast iron sluice gates and special shoring that will be required for the trench excavation. <br />Due to the extensive shoring needs and the need to maintain the existing sewer pump station in <br />service during construction, it is recommended that a 20 % contingency be provided for the <br />project for any unforeseen conditions experienced during construction. <br /> <br />BUDGET <br /> <br />Project funding, estimated expenditures, are presented below. <br /> <br />FUNDING <br />Sewer Replacement Fund (FY 2003-2004) (Project 032017) <br />Sewer Replacement Fund (FY 2005-2006) (Project 032017-Budget Adjustment) <br />Unallocated funding from the Sewer Replacement Fund (Fund Transfer) <br />TOTAL <br /> <br />$167,000 <br />$199,000 <br />$154,000 <br />$520,000 <br /> <br />SR:06:080 <br />Page 2 of 4 <br />