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<br />.' <br /> <br /> <br />E <br /> <br />. <br /> <br />MANCOS PROJECT <br />MANCOS, COLORADO <br /> <br />Montezmna County <br /> <br /> <br />Upper Colorado Re2ional Office <br />Western Colorado Area Office <br /> <br />· General Description and Plan <br />· Development <br />. Benefits <br />· Contact Information <br /> <br />Jackson Gulch Dam and Reservoir <br /> <br />. <br /> <br />General Description <br /> <br />The Mancos Project in the southwest comer of Colorado consists of the Jackson Gulch Dam and Reservoir, the Inlet <br />Canal, and the Outlet Canal. Project lands extend downstream about 10 miles. The project can furnish a supplemental <br />water supply to 13,746 acres. <br /> <br />Plan <br /> <br />U nit descriptions and facilities <br /> <br />The offstream reservoir is fed by the 2.6-mile-long Inlet Canal from the West Mancos River. Water from the reservoir <br />is returned to the original streambed at a point higher than the project lands through the 2.2-mile-long Outlet Canal. <br />The greater part of the distribution system was constructed by local interests prior to 1900. Facilities constructed by the <br />Bureau of Reclamation furnish supplemental water to an established agricultural area and provide a domestic water <br />supply for Mesa Verde National Park, Mancos Rural Water Co., and the Town of Mancos. <br /> <br />Jackson Gulch Dam and Inlet Canal <br /> <br />Jackson Gulch Dam is a rock-faced earthfill structure 180 feet high with a concrete cutoff wall. The reservoir is off- <br />stream on Jackson Gulch, 5 miles north of Mancos, and has a total capacity of almost 10,000 acre-feet. The dam does <br />not have a spillway. The 280-cubic-foot-per-second-capacity outlet works is a concrete pressure conduit from trashrack <br />to gate chamber, and a steel pipe from gate chamber to two hollow jet valves. The Inlet Canal extends from the West <br />Mancos River to the reservoir. <br /> <br />. <br /> <br />Operating agencies <br /> <br />Operation and maintenance of the project was transferred to the Mancos Water Conservancy District on January 1, <br />