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<br />COMMENTARY - SHEET 9 OF 12 <br /> <br />COST ESTIMATE - SHEET 9 OF 12 <br /> <br />Floodplain regulation is the recommended plan for this reach. One private <br />property is currently impacted by flooding and purchase of flood insurance <br />should be encouraged. <br /> <br />ITEM <br /> <br />Channel Improvements (Low Flow Rip-Rapped Channel) <br />Street Crossings <br />Utility Relocation <br />Detention Facility (Principal Pipe Outlet) <br /> <br />Discussion regarding the detention basin is provided in the commentary for <br />Sheet 8. Sheet 9 shows the profile for the principle outlet and the low flow <br />channel. The cost estimate following this commentary documents the estimated <br />cost of the principle outlet works and the low flow channel. All other costs <br />associated with the detention facility are included with the commentaries for <br />Sheets 7 and 8. <br /> <br />Subtotal <br />Contingencies (15%) <br />Engineering, Legal & Administrative (15%) <br /> <br />An annual maintenance cost has been estimated for the channel upstream of the <br />proposed low flow channel to include the cost of debris clean-up. An improved <br />channel is not recommended at this time. Should improvements be considered <br />as part of future development in this area, the technical data and criteria <br />presented in this report should be utilized and channels should be improved <br />utilizing the latest Urban Storm Drainage Criteria Manual guidelines. <br /> <br />TOTAL CONSTRUCTION COST <br /> <br />Right-of-Way Acquisition (See Sheet 8) <br /> <br />TOTAL CAPITOL COST OF IMPROVEMENTS <br /> <br />TOTALS IN EACH JURISDICTION <br /> <br />City of Golden <br />Jefferson County <br /> <br />Annual Operation and Maintenance Costs <br /> <br /> COST <br />$ 18,100 <br /> -0- <br /> -0- <br /> 46,000 <br /> 64,100 <br /> 9,615 <br /> 9,615 <br /> 83,330 <br /> -0- <br /> 83,330 <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I~ <br /> <br />83,330 <br />-0- <br /> <br />(900) <br />