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<br />Final Draft - Preferred Storage Options Plan <br />Southeastern Colorado Water Conservancy District <br />June 8, 2000 <br /> <br />lead agency. As a stand-alone project, the Corps of Engineers seems to be the most likely <br />Federal agency to take the permitting lead for an enlarged Lake Meredith. <br /> <br />3.3.4.2 Implementation Costs <br /> <br />Costs estimated for the Lake Meredith enlargement were developed by B&V using <br />previous work by URS. Total cost including dam modifications, permitting and NEPA <br />compliance, and potential mitigation range from $37.4 to $92.1 million, as summarized <br />below: <br /> <br /> Capacity Increase (AF) <br /> Major Cost Item 15,000 25,000 40,000 55,000 75,000 <br />. General Conditions 3.9 6.2 7.8 8.4 9.4 <br />. Dam Construction 9.1 10.3 13.3 14.6 18.1 <br />. Facilities Modification 16.7 31.4 38.6 41.4 44.5 <br /> Construction and Mitigation <br />. Permitting and NEPA 2.4 3.8 4.8 5.2 5.7 <br />. Legal, Administrative and 4.5 7.2 9.0 9.7 10.8 <br /> Engineering Costs <br />. Land Acquisition 0.8 1.6 2.3 2.8 3.6 <br />. Total Project Cost $37.4M $60.5M $75.8M $82.1M $92.1M <br /> Unit Cost ($ per af) $2,490 $2,420 $1,900 $1,490 $1,230 <br /> <br />3.3.5 New Storage Reservoirs <br /> <br />Williams Creek Dam and Reservoir <br /> <br />Technical Issues. Williams Creek Reservoir is an integral part of CSU's long-range <br />water resources plan. Preliminary engineering for Williams Creek Dam was completed <br />by CH2M Hill. This new dam, located on Williams Creek, a tributary of Fountain Creek, <br />would be a zoned embankment dam and would include an outlet works with selective <br />withdrawal capability and a spillway to protect the dam from overtopping. To fill the <br />reservoir, a canal or pipeline would be constructed from a point on Fountain Creek to the <br />new reservoir. The Williams Creek channel below the dam would need to be modified <br /> <br />m GEl Consultants, Inc. <br /> <br />3-14 <br /> <br />J:\PROIECTSI99061\RepolU\Prefcrred sOP Final wpd <br />