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<br />determine if either should be permitted. Alternatives for which there <br /> <br /> <br />would be no overwhelming technological or legal obstacles and that <br /> <br /> <br />would be similar in cost to the proposed projects were evaluated in <br /> <br /> <br />site-specific detail. <br /> <br />1.23 Alternatives to the 1,100,000 acre-foot Two Forks Dam and <br /> <br /> <br />Reservoir that were evaluated are the 400,000 acre-foot Two Forks Dam <br /> <br /> <br />and Reservoir, the 743,000 acre-foot New Cheesman Dam and Reservoir, <br /> <br /> <br />the 400,000 acre-foot Estabrook Dam, and the 200,000 acre-foot <br /> <br />Estabrook Dam and Reservoir. A Williams Fork Pumping Collection <br /> <br /> <br />System was evaluated as an alternative to the Williams Fork Gravity <br /> <br /> <br />Collection System. <br /> <br />SOUTH PLATTE STORAGE <br /> <br />1.24 The Two Forks damsite would be the same for either sized project <br /> <br /> <br />and is located on the South Platte River downstream from its <br /> <br /> <br />confluence with the North Fork. The Two Forks Dam would store South <br /> <br /> <br />Platte and North Fork flows as wel1 as Colorado River hasin water <br /> <br /> <br />transported to the North Fork through the Roberts Tunnel. New <br /> <br /> <br />Cheesman would be located On the South Platte River upstream from the <br /> <br /> <br />confluence with the North Fork. It would directly store only South <br /> <br /> <br />Platte River flows. A diversion dam would be located on the North <br /> <br /> <br />Fork to divert North Fork flows and Colorado River basin water from <br /> <br /> <br />Roberts Tunnel through a new 14-mile tunnel to New Cheesman for <br /> <br /> <br />storage. <br /> <br />1.25 The Estabrook damsite would be the same for either sized <br /> <br /> <br />alternative is located on the North Fork, and would only store North <br /> <br /> <br />Fork flows and Colorado River basin water transported through the <br /> <br />1-17 <br />