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000025 POWER DEVELOPMENT BUREAU OF RECLAMATION Description: Missouri Basin power development, consisting ulti- mately of powerplants and multi-purposes dams, a few powerplants and dams operated primarily for power, and a large number of irrigation pumping plants, will require an extensive transmission system to in- terconnect the powerplants for more efficient use of water resources and to make power available for wide-spread uso by consumers. The transmission network will serve the irrigation pumping plants, rural electric cooperatives, public bodies, and privately-owned companios and industrial loads. The Secretary of the Interior was authorized and directed in Section 5 of the Flood Control Act of 1944 to dis- pose of power generated at the dams constructed by the Corps of Engineers in the Missouri River Basin. Under this authority, the Bureau of Reclamation has been designated as the agency to market the power. Power will be needed immediately at the various dam sites for construction purposes. For these dams at which powerplants will be constructed, the lines that will be needed to bring power in for con- struction purposes will be so designed and constructed that they will form a permanent part of the transmission system after the power- plants are completed and in operation, thus saving the cost of build- ing temporary lines in supplying construction power only. , The Bureau of Reclamation has constructed powerplants on the Shoshone Project at Cody, Wyoming; on the Riverton Project at River- ton, Wyoming; on the North Platte Projoct at Guernsey and Lingle, Wyoming, and on the Kendrick Project at Seminoe, Wyoming. Projects or units now being constructed which have power features include the Colorado-Big Thompson, Colorado; Boyscn and Kortes Dams, and the Shoshone-Heart 140untain plant in Wyoming. POIlerplants are also an integral part of the Canyon Ferry and Glendo Dams which are in con- struction status, but on which no construction was performed in fiscal year 1948. It is proposed to connect Government generating plants by interconnecting transmission systems, and also connecting to private power systems in order to provide a network for delivery of both firm and secondary power to important load centers, utilities, municipalities, cooperatives, industrial plants, and for irrigation pumping and construction purposes. During fiscal yoar 1948, transmission lines were under construc- tion on the Fort Peck, Shoshone, Colorndo-Big Thompson, and Kendrick Projects, and on the Transmission Lines Unit. There were 798 miles of transmission lines actually under contract during fiscal year 1948. The status of these lines and others in the 1948 program is shown by the following table: 43