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<br />"' <br /> <br />, , <br /> <br />I <br />, <br />i' <br />i <br />! <br />, <br /> <br />.1 <br />i <br /> <br />'. <br /> <br />.~ <br /> <br />" <br /> <br />~ <br /> <br />j '" I' ,-'. <br />tl.lvi' <br /> <br />DEPARTMENT OF THE ARMY <br />ALBUQUERQUE DISTRICT, CORPS OF ENGINEERS <br />P. O. BOX 1580 ' <br />ALBUQUERQUE, NEW MEXICO 87103 <br /> <br />.'. < <br /> <br />FLOOD CONTROL FRYINGPAN-ARKANSAS PROJECT <br />EASTERN SLOPE FEATURES <br /> <br />'INTRODUCTION <br /> <br />l.PURPOSE.- "In 1948 the Albuquerque District, Corps of Engineers, <br />furnished'the ,Bureau of Reclamation an estimate of flood control benefits <br />and evaluation of flood control operations and storage for Pueblo Dam <br />and Reservoir. Results of th~ analysis were presented in the Bureau's <br />report InitiaZDeveZopment. Gunnison-Arkansas ~ojeat; Roaring Fork <br />Diversion.CoZorado; dated January 1950. The project, now known as the <br />Fryingpan-Arkansas Project; was authorized by P.L. 87-590. In correspond- <br />encedated 12 April 1963 to the Corps, the Bureau stated that review of <br />the above-described material would be requested when final plans were <br />prepared. The 'request was confirmed in subsequent correspondence dated <br />12 September 1963 from the Regional Director of Region 7 of the Bureau <br />of Reclamation. By letter dated 13 August 1968, the Regional Director <br />requested that 'the evaluation ,and report be expanded to include the <br />flood control aspects of all of the eastern slope features or the <br />Fryingpan-Arkansas Project. <br /> <br />2. SCOPE.- The major east slope features of the Fryingpan-Arkansas <br />Project include Sugar Loaf Dam (Turquoise Lake); Elbert canal and forebay; <br />Twin Lakes Dam; ,Otero Canal; Clear Creek Reservoir; Pueblo Dam and Res- <br />ervoir; and the'Arkansas Valley Municipal pipeline. All of the features <br />except Pueblo Dam and Reservoir and the Arkansas Valley Municipal pipe- <br />line would be constructed above Canon City which is the upstream limit <br />of the Arkansas River Basin susceptible to significant mainstem flooding. <br />Therefore, the flood, control effect of these features, regardless of <br />their size,'would'be negligible. The Pueblo Dam and Reservoir will con- <br />trol about one-third of the Arkansas River Basin above Las Animas and <br />will have major flood control effects. The Arkansas Valley Municipal <br />pipeline would have no effect on flood control. Since 'the Pueblo Dam <br />and Reservoir project is the only feature which would have significant <br />flood control effects, the remainder of this report will be 'limited to <br />the flood control operations and flood control benefits of that feature. <br /> <br />'3. PROJECT DESCRIPTION.- The dam would be a concrete gravity <br />structure located on the Arkansas River about 6 miles upstream from <br />Pueblo, Colo. The location is shown on plate 1. The Arkansas River <br />Basin in Colorado is also shown on plate 1. The 357,000 acre-foot <br />multipurpose reservoir would provide for regulation of Arkansas River <br />flows including 69,200 acre-feet of water imported from the upper COlorado <br />