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I I I I I I 1 I I II I I I I I I I I I The Dallas Creek Project is a multipurpose water storage project located in the Upper Uncompahgre River Basin near the Town of Ridgway. The primary purpose of the project is to provide M&I water to the region (28,100 af). The other project purposes are irrigation (ll,200 af) and recreation (100 af). The key element of the project is Ridgway Dam which was completed in early 1987. It is expected to take four years to fill the reservoir created by the dam. The project was planned and constructed by the USBR but will be administered, and ultimately owned by the Tri-County Water Conservancy District. The Dallas Creek Project consists of the Ridgway Dam and appurtenant structures (See Figure B.2). The dam is an earthfi11 structure with an embankment volume of 9,191,000 cubic yards and a height of 227 ft above streambed. The dam crest is 2430 ft long and 30 ft wide. The surface area of the reservoir at normal water surface elevation if 6871.3 ft is approximately 1030 acres. The appurtenant structures consist of a two-level outlet works and a morning glory type spillway. Provisions have also been incorporated into the outlet works to allow for the installation of a 4.2 MW hydroelectric generating plant in the future. B.2.5.4 City of Gunnison The City of Gunnison has a present population of about 6000, nearly half of which are students enrolled at Western State College. The service area of the city's water distribution system is essentially the city limits, approximately 3 square miles in size. To date, the City's domestic water needs have been met by tapping ground water supp1 ies flowing through the pervious surficial deposits resting in an ancient streambed running north and south beneath the city at approximately 9th Street. The water is extracted by a series of nine wells operated in a sequence dictated by system demands. Depth of the B-28 [] "". r"1",'" 6 5'" w ~. j ..,; U ~._! J .)