WSP12424 - Laserfiche WebLink

Home Browse Search

SUMMARY SHEET Dominguez Reservoir Project M If) ~ LOCATION 'lhe tbminguez Reservoir Project is located in west-central Colorado in Delta and Mesa Coun- ties I between the cities of Grand Junction and Delta, c~ PURPOSE The multipurpose project would develop water of the Gunnison Ri ver, a major tributary of the Colorado River, for hydroelectric power, munic- ipal and industrial use, recreation, and fish and wildlife enhancement. The proposed project plan has been developed in accordance with the Principles and Standards for Planning Water and Related Land Resources which emphasize public in vol yemen t. STATUS The ~minguez Reservoir Project was authorized by the Water Resource Developments, Feasibility Studies Act of October 17, 1972 (Public Law 92- 577) , Feasibility investigations were initiated in January 1975 with the formation of the multi- objective planning (MOP) team. The team has selected four alternatives to be included in the feasibility report: (1) recommended plan, (2) plan with economic emphasis. (3) plan with environmental empba.<:;is. and (4) no developm~['lt. The Feasibility Report is scheduled for late calendar year 1980. The Draft Environmental Impact Statement is due late calendar year 1980, the public meeting in early calendar year 1981, and the Final Environmental Impact Statement in mid calendar year 1981. The FY79 appropriations include $141,000 and the President's proposed budget for FY80 in- cludes $100,000 for continued planning. PLAN The recommended plan considers both economic development and environmental values. Two dams, two reservoirs, and two powerplants would be constructed for power generation. I.lJminguez Reservoir. the larger of the two. lr."Ould provide t-'ater for municipal 3...'1d indus- trial use, with some recreational development of both the reservoir and the river below. The plan would provide for preservation and enhancement of fish and wildlife potential above and below the reservoir and for preser- vation of cultural resources and scenic values of the area. The proposed Dominguez Dam on the Gunnison River near the community of Whitewater would be a rolled earth and rockfill structure with the following approximate dimensions: Hydraulic height Crest length Cre.st width Volume Total capacity 171 feet 1,170 feet 30 feet 3,000,000 cubic yards 302,000 acre-feet August 10, 1979 Page 1 of 2 Dominguez Reservoir would have a surface area of about 5,000 acres when full. A conventional powerplant with a maximum capacity of 18 megawatts would be situated at the base of the dam, while a pumpback peak- demand powe:rplant and reservoir (Rim Basin Reservoir) would be constructed about 800 feet above Dominguez Reservoi r and about 8 miles upstream from Dominguez Dam. These facilities would have an ultimate capacity of 500 mega- watts and could be built in stages to satisfy future needs. Rim Basin Reservoir would be created by build- ing Rim Basin Darn around a natural draw (chan- nel) on the east canyon rim above the Gunnison River. The dam would be a horseshoe-shaped structure with an embankment of zoned earthfill. Preliminary studies indicate the dam would hav8 the following approximate dimensions: Hydraulic height Crest length Crest width Volume Total capacity 230 feet 8,220 feet 25 feet 14,000,000 cubic yards 9,874 acre- feet Rim Basin Reservoir would have a surface area of 137 acres at normal water surface elevation 5,604 feet. lJ Po....er Plall' o Pump;nQ PIon' No t l~':HR iIf~~ ,~~ ~<., ~'rl ~~ ~C;;l~t~~~~~~)~; 'I V/\ I <k~ 1 ,<<:,~,,~\ , 'Q::;='" ,. ? I . ~ RIM BASIN RES, PUMP-BACK STORAGE ,/' .,,)""-s--:-' vo..........-:..'~ "'....'5~...... (;0,)"" <;)t-\-"\"