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<br />Major Storage Projects <br /> <br />Reservoi r <br /> <br />Normal Storage <br />(acre-feet) <br />539,800 <br />254,036 <br />154,600 <br />102,369 <br />90,640 <br />66,000 <br />43,600 <br />33,800 <br />18,400 <br />13,602 <br />10,600 <br />9,591 <br />5,058 <br />4,372 <br />3,148 <br /> <br />Granby Reservoir <br />Dillon Reservoir <br />Green Mountain Reservoir <br />Ruedi Reservoir <br />Williams Fork Reservoir <br />Wolford Mountain Reservoir <br />Homestake Reservoir <br />Vega Reservoir <br />Shadow Mountain Reservoir <br />Rifle Gap Reservoir <br />Willow Creek Reservoir <br />Jenny Creek Reservoir <br />Grass Valley Reservoir <br />Clinton Reservoir <br />Eagle Park Reservoir <br /> <br />Source: Colorado Division of Water Resources Office of Dam <br />Safety Database <br /> <br />Hydrological Variations <br /> <br />Examples of annual Colorado River flow variation are <br />shown in the following table, and seasonal variations are <br />shown in the annual discharge graph. <br /> <br />Gage <br /> <br />Maximum <br />Recorded <br />Flow (cfs) <br />68,300 (1984) <br />38,000 (1984) <br />22,200 (1984) <br /> <br />Minimum <br />Recorded <br />Flow (cfs) <br />960 (1956) <br />700 (1940) <br />350 (1944) <br /> <br />At State Line <br />At Cameo <br />At Dotsero <br /> <br />Source: U. S. Geological Survey Water Data Reports <br /> <br />Annual Discharges <br /> <br />Colorado River Near the Colorado - Utah State Line <br /> <br />50,000 <br /> <br />45,000 <br /> <br />~ 40,000 <br />~ <br />~ 35,000 <br />C'l:I <br />~ 30,000 <br />is <br />>- 25,000 <br />::c <br />g 20,000 <br />:i: <br />~ 15,000 <br />Q) <br />~ 10,000 <br /> <br />5,000 <br /> <br />Average Annual Discharge: <br />Minimum Annual Discharge: <br />Maximum Annual Discharge: <br /> <br />D Avg Year <br /> <br />4,638,000 AF <br />1,852,284 AF (1977) <br />9,779,583 AF (1984) <br /> <br />. Max Year <br /> <br />D Min Year <br /> <br /> <br />Oet Nov Dee Jan Feb Mar Apr May Jun Jul Aug Sep <br /> <br />Source: U. S. Geological Survey Water Data Reports <br /> <br />Major Water Rights Calls <br />What it is: <br /> <br />What it <br /> <br />Cameo Irrigation Call (Totaling <br />2,260 cfs with most priorities from <br />1912-1934. Grand Valley Irrigation Co. <br />priorities of 1882 and 1914.) <br />does: Provides water mostly for irrigation <br />and power in the Grand Valley near <br />Grand Junction. <br />From as early as April to as late as October <br />in dry years. <br /> <br />When: <br /> <br />What it is: Public Service Company's Shoshone <br />Hydropower Call <br />(1905, 1,250 cfs and 1940, 158 cfs) <br />What it does: Provides water to the Shoshone Power <br />Plant near Glenwood Springs. <br />Wh en: Often exercised during the winter, thereby <br />limiting upstream supplies for municipalities, <br />transbasin diversions and snowmaking. <br /> <br /> <br />Eagle River (Photo courtesy of Brian Blair) <br />C Colorado River Basin Facts - 2 ) <br />