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<br />. <br /> <br />elevation the reservoir has a surface area of 42,000 acres. <br /> <br />Navajo Unit is on the San Juan River in northwestern New Mexico. The dam <br /> <br /> <br />is about 34 miles east of Farmington. It is a rolled earthfill embankment <br /> <br /> <br />with a structural height of 402 feet and a crest length of 3,648 feet. At <br /> <br /> <br />normal water surface elevation the reservoir has a capacity of 1~708,000 <br /> <br /> <br />acre feet, and a surface area of 15,600 acres. There is no powerplant, but <br /> <br /> <br />a 23,000 kilowatt plant is planned for construction primarily to provide <br /> <br /> <br />pumping power for the Navajo Indian Irrigation Project. <br /> <br />The Curecanti Unit develops the water-storage and hydroelectric power <br /> <br /> <br />generating potentialities along a 40-mile section of the Gunnison River <br /> <br /> <br />in Colorado. The unit consists of three dams and powerplants: Blue Mesa, <br /> <br /> <br />Morrow Point, and Crystal. BI,e Mesa and Morrow Point are constructed. <br /> <br /> <br />Crystal in under construction. <br /> <br />Blue Mesa Dam is on the Gunnison River about 30 miles west of Gunnison, <br /> <br /> <br />Colorado and 1.5 miles west of Sapinero, Colorado. The zoned earthfill <br /> <br /> <br />embankment has a streambed height of 340 feet, a crest length of 770 feet. <br /> <br /> <br />Blue Mesa Reservoir has a total capacity of 941,000 acre-feet, and an <br /> <br /> <br />active capacity of 749,000 acre-feet. At maximum elevation the reservoir <br /> <br /> <br />water surface area is 9,200 acres. The Blue Mesa Powerplant consists of <br /> <br /> <br />two 30,000-kilowatt generators. <br /> <br />Morrow Point Dam, 12 miles downstream and west from Blue Mesa Dam is the <br /> <br /> <br />Bureau's first thin-arch, double-curvature dam. It is 465 feet high, 52 feet <br /> <br /> <br />thick at the base, and 12 feet thick at the crest. The dam has a crest <br /> <br /> <br />length of 720 feet. Reservoir capacity behind Morrow Point Dam is 117,000 <br /> <br /> <br />acre-feet at maximum water surface. The active capacity is 42,000 acre-feet. <br /> <br /> <br />Surface area for Morrow Point Reservoir is 800 acres at normal water sur- <br /> <br /> <br />face elevation. The powerplant is embedded in the mountainside and houses <br /> <br /> <br />two 60,000 kilowatt generators. <br /> <br />Crystal Dam, seven miles downstream and west from Morrow Point Dam, is <br />under construction. It will be a double-curvature thin-arch type concrete <br />structure 620 feet long at the crest and 340 feet high. At normal water <br /> <br />3 <br />