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<br />e <br /> <br />PROJECT PLAN <br /> <br />A plan for the Colorado River storage project and an initial group <br />of participating projects has been formula.ted by the Bureau of Reclama- <br />tion in cooperation ylith other Federal agencies and with the states of <br />the upper Colorado River Basin. The project report prepared in 1950 and <br />a supplemental report prepared in 1953 were printed as House Document No. <br />364, 83d Congress, 2d Seasion. Reports on the participating projects in <br />the initial group, supplemental to the 1950 report, were also co~leted <br />in 1950 and 1951. Since its introduction in the 1950 report, the project <br />plan has been subject to modifications as shown in the 1953 supplement, in <br />the authorizing act, and in definite plan studies. <br /> <br />Colorado River storage project <br /> <br />e <br /> <br />The various dams and reservoirs of the Colorado River Storage proj- <br />ect will regulate the flow of the river 1 thus permitting an expansion of <br />irrigation and other ,re.ter use in the upper basin within the limits of <br />the Colorado River Compact. In most instances powerplants and s"Titchyards <br />will be installed at the dams and transmission lines will be provided to <br />transmit the power to load centers. Facilities will be provided as appro- <br />priate for recreation and to mitigate losses of, and improve conditions <br />for, the propagation of fish and wildlife. Minor flood control and other <br />benefits, largely unevaluated at present, are anticipated from the storage <br />project. <br /> <br />The Colorado River storage project as outlined in the 1950 report <br />included ten storage units. Four of these were authorized for construc- <br />tion by the act of April 11, 1956. It is anticipated that additional units <br />will be authorized as they become needed. The four authorized units are <br />the Glen Canyon, Flaming Gorge, Navajo, and Curecanti. TOGether they will <br />provide about 34,670,000 acre-feet of reservoir capacity and about 1,167,000 <br />kilowatts of installed generating capacity. More than three-fourths of <br />both capacities v1ill be provided by the Glen Canyon unit alone. <br /> <br />Brief descriptions of the four authorized units and their common <br />transmission system appear below. Data on reservoir and. powerplant capaci- <br />ties and stream depletions are summarized in the table on page 11. <br /> <br />Glen Canyon unit <br /> <br />Glen Canyon Dam will be on the Colorado River in northern Arizona, <br />about 13 miles downstream from the Utah-Arizona state line and 16 miles <br />upstream from Lee Ferry. It is the only one of the authorized dams that <br />will be cn the Colorado River proper. <br /> <br />e <br /> <br />4 <br />