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<br />~ <br /> <br />~~..~ <br />. <br /> <br />included improvement of the Arkansas River at Las Animas in the interest <br />of flood control. Studies made in connection with this interim report <br />indicate that a project for flood control, designated as the Las <br />Animas Local Protection Project, is a necessary independent element of <br />the comprehensive plan for development of the subbasin. The project <br />would consist essentially of 9.6 mi les of levee on the right bank of <br />the Arkansas River, one mi Ie of levee on the left bank, and appurtenant <br />interior drainage faci! ities designed to provide protection against <br />flows up to 140,000 c.f.s. <br /> <br />The estimated first cost of the project is $1,725,000, of which <br />$1,541,000 would be Federal and $184,000 would be non-Federal. The <br />annual charges are $59,000. Although the local protection project is <br />a unit in the comprehensive plan for the development of the water <br />resources of the Arkansas River Basin, justification for its construction <br />is not dependent upon completion of any other element of the plan. The <br />annual primary benefits are estimated at $74,400. The ratio of benefits <br />to costs is 1.3. Local interests favor the Las Animas Local Protection <br />Project and have indicated their wi I I ingness to cooperate in its <br />construction. <br /> <br />~:~ <br /> <br />The District Engineer recommends that the Las Animas Local Pro- <br />tection Project be authorized for construction by the United States; <br />provided that no construction shal I begin unti I local interests have <br />furnished satisfactory assurances that they wi I I meet the requirements <br />of local cooperation as set forth in this report. <br /> <br />i i <br /> <br />R 1/28/64 <br />