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<br />OUG22'3 <br /> <br />NAVAJO DAM AND RESERVOIR <br /> <br />I. RESERVOIR STORAGE ALLOCATIONS <br /> <br />Dead <br />Inactive <br />Active <br />Total <br />Surcharge <br /> <br />Storage <br />(acre feet) <br />12,600 <br />659,900 <br />I. 036 .100 <br />1,708,600 <br />277 ,600 <br /> <br />Elevation <br />(feet) <br />5775.00 <br />5990.00 <br />6085.00 <br />6085.00 <br />6101.60 <br /> <br />II. DAM. OUTLET WORKS. AND SPILLWAY DATA <br /> <br />Dam type: Zoned earthfill <br />Structural height <br />Hydraulic height <br />Crest width <br />Crest elevation <br />Volume <br /> <br />402 feet <br />338 feet <br />30 feet <br />3,648 feet <br />6108.00 feet <br />26,840,863 yd3 <br /> <br />Outlet works: Concrete lined tunnel controlled by one 6-by 13 foot fixed <br />wheel gate, two 72-inch ring follower gates, and two 72-inch hollow jet <br />valves. <br />Outlet works capacity at elevation 6101.50: 4,200 ft3/s <br />Auxiliary outlet works: Concrete lined tunnel in right abutment controlled by <br />two 4-foot square tandem outlet gates exiting in the spillway stilling basin. <br />Auxiliary outlet works capacity at elevation 6085.00: 1,700 ft3/s <br /> <br />Spillway: Uncontrolled concrete crest <br />stilling basin at right abutment. <br />Spillway crest length: <br />Spillway crest elevation: <br />Spillway capacity at elevation 6106.50: <br /> <br />and concrete lined chute and <br /> <br />138 feet <br />6085.00 feet <br />34,000 ft3/S <br /> <br />III. DIVERSION FACILITIES - NIIP <br /> <br />Head works: Concrete structure in left abutment controlled by two 9-by 12- <br />foot fixed wheel gates and two 9-by 12-foot radial gates. <br />Diversion capacity at elevation 6085.00: 1,800 ft3/s <br />Minimum diversion elevation = 5990.00 ft <br /> <br />A-18 <br />