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<br />. <br /> <br />. <br /> <br />. <br /> <br />. ....- II - <br />1 f'j,.j <br /> <br />Narrows Unit <br />August 1966 <br /> <br />I <br /> <br />POWER AND MUNICIPAL WATER <br /> <br />No hydroelectric power generatio~ is planned. No specific pro- <br />visions are included for mW1icipal and industrial water; however, <br />future conversion from irrig~tion supply to municipal and indus- <br />trial water supply is not precluded SllOUld the need and desire <br />ari 58 . <br /> <br />DISTRIBUTION SYSTEM <br /> <br />None. Relea~"d supplemental water would be carried in South <br />Platte niver to the diversion works of cooperating irrigation <br />syste7~(s which are already in existence. <br /> <br />PROJECT FEATURES <br /> <br />Nar,'ows Dam <br /> <br />Located on South Platte River about 7 miles northwest of <br />Fort Morgarr, Colorado <br /> <br />Type . . . . . . <br />Height above strea.'11bed <br />Crest length . . . . <br />Crest elevation. . . . <br />Volume of embankment . <br />Spillway capacity (peak discharge) <br /> <br />Rolled earthfill <br />146 ft. <br />22,120 ft. <br />4453.0 m.s.1. <br />8,840,000 cu. yd.s. <br />27,600 c.f'.s. <br /> <br />Narrows Reservotr <br /> <br />Area top of joint use pool J C LevatJon 41+04.3 <br />Shoreline top ()f Joint use pool <br /> <br />14,963 acres <br />40 miles <br /> <br />Narrows Reservoir CLipacUy (acre-fecot) <br /> <br />Item <br /> <br />Elcv. <br />( feet) <br /> <br />lOO-year* <br />conditions <br /> <br />Tni. tiLll <br />conditions <br /> <br />50-year~' <br />comli t ions <br /> <br />Streambed 4307.0 0 0 <br />Dead 433').0 17 .350 lO,le5 <br />Inactive 4351.0 32;810 27,773 <br />Conservation 439).0 373,025 355,227 <br />Joint use 4L104.3 7~, ,liOO 75,000 <br />Flood coc.trol 1,426." 475,000 475,000 <br />Total capacity 913,185 91'3,185 <br />Surcharge 441"1' .0 575,373 575,373 <br />* For space allocation purposes. all sediment i,; assumed to <br />accumulate below the top of the conservation pool. Sediment <br />accwnulation is est.imated to te 60.000 acre-feet after 100 years <br />of operation. <br /> <br />o <br />4-,916 <br />22,399 <br />335,870 <br />75,000 <br />475,000 <br />913,185 <br />575} 373 <br /> <br />6 <br />