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I J , i I. I. (.. ,. 000D18 COLORADO-BIG THOMPSON PROJECT (1). Granby Dam, Dikes, and Pumping Plant Description: Granby Dam will be approximately 885 feet long and will have a maximum height of 232 feet above the bed of the river. Four earthfill dikes will be built in the low places in the rim of the reservoir. Granby pumping plant is a reinforced concrete plant with three intako conduits, intake structure, intake canal, three steel outlet pipes and four deep well turbine pumps. The construction of the Granby Pump Canal consists of earthwork, structures, installation of gates, hoists, valves, and.metal work. The structures conaist of a concrete box culvert, three metal pip~ crossings over the canal, a bridge, drainage inlet, road crossing, turnout to thE; wasteway, and the inlE;t to the Shadow Mountain Reservoir . Program FY48: Work will be continued by the contractors on the Granby Dam and DikiJS and will consist of grouting of the main dam, concrete and earth embankment-plscing operations. The contractor estimated that the dam and dike No. 3 would be 55 percent complete by the end of fiseal year 1948 and that the pumping plant and pump canal weuld be 34 and 75 percent cQmplete respectively. Accomplishments FY48: Granby Dam and Dike were 54.3 percent complete with 53.5 percent of tho time elapsed. Grouting of the dam foundation was completed on November 1, 1947 and grouting of the diversion tunnel on January 11, 1948. The upstream cutoff wall was completed on June 9, 1948. Thc Granby pumping plant was 34 percent complete with 63 per- cent of the time elapsed. The Granby Pump Canal was 70.6 percent complete with 51.6 per- cent of time elapsed. The excavation for the inlet to Shadow Moun- tain Reservoir was completed and the wasteway was completed. The contract for dikes Nos. 1, 2, and 4 was 62 percent complete with 62 percent of time elapsed. 31