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Show (Washington) works to serve the last of the lands in the Roza Division are being completed. Two projects of the Bureau of Reclamation have been authorized but are not yet under construction. The Kennewick Division of the Yakima Project in- volves irrigation of 20,961 acres of which 4,268 are now irrigated. Facilities will be provided eventu- ally to irrigate an additional 6,721 acres. Construc- tion of the North Side pumping division (including American Falls power plant), Minidoka Project, Idaho, was authorized in September 1950. It is expected to irrigate 77,650 acres. In addition, there are five irrigation projects of the Bureau of Indian Affairs which are considered to be in a construction status, but on which no construction work is now going forward. These are the Fort Hall, Idaho; Western Shoshone, Idaho- Nev.; Warm Springs, Oreg.; Colville, Wash.; and Wapato, Wash., Projects. When completed these facilities will furnish water to about 98,000 acres of new land and supplemental water to 15,000 acres already developed. Several projects of the Corps of Engineers have some irrigation value. These include Fall Creek, Blue River, Gate Creek, Cascadia, Wiley Creek, and Holley, all on the Willamette, and McNary on the Snake River. Twelve projects involving irrigation facilities are currently recommended for authorization. They will provide for the irrigation of approximately 297,000 acres of land now dry and will supplement inadequate supplies on 90,390 acres presently irri- gated. Total cost allocated to irrigation is 238.2 million dollars. Almost five-sixths, or 199 million dollars, of the total expenditures in this group is for the Mountain Home Project, Idaho. The comprehensive plan for future development of the basin includes 184 additional projects with irrigation features. Preliminary studies have been made for 96 of these projects; they envisage the irrigation of over 2 million acres of dry land and supplemeotal water for 312,000 acres of land now irrigated. Hydroelectric Power Facilities No non-Federal hydroelectric plants are presently under construction in the Columbia River Basin.1 1 Some projects closely related to the Columbia power system are under construction immediately outside the basin, as those being constructed by the City of Seattle. Six multiple-purpose and one single-purpose (Chief Joseph) reservoir projects now are under construction in the basin which have initial power installations totaling 2.5 million-kilowatts capacity. These projects are the McNary and the Chief Joseph on the Columbia River, Lookout Point (Meridian site, Middle Fork Willamette), and the Detroit Dam and the Big Cliff Reregulating Dam on the North Santiam River, which are being constructed by the Corps of Engineers. The Bureau of Recla- mation is building Anderson Ranch on the Boise River, Palisades on the Snake River fork, and Hungry Horse on the South Fork Flathead River. Total active storage capacity will be about 5 million acre-feet on the seven projects. Additional installed capacity has been author- ized at four Federal projects existing or under con- struction, and 14 new projects have been authorized to include hydroelectric power. The total author- ized ultimate new capacity is 7.4 million kilowatts, with an average annual generation of approxi- mately 39 billion kilowatt-hours. Projects authorized for construction by the Corps of Engineers are Ice Harbor, Lower Monumental, Little Goose, and Lower Granite Dams on the lower Snake River; Big Cliff on the North Santiam River; Libby on the Kootenai River; Albeni Falls on the Pend Oreille River; Priest Rapids, John Day, and The Dalles on the Columbia River; Hills Creek and Dexter Reregulating Dam in the Willamette Basin. The Chandler power plant in the Kennewick Division and the rehabilitation of the Roza Divi- sion, both within the Yakima Project, and the Amer- ican Falls, Idaho, power plant, have been authorized for construction by the Bureau of Reclamation. Total active water storage capacity of these res- ervoirs will exceed 10 million acre-feet. Hydroelectric power developments are proposed for two projects recommended by the Bureau of Reclamation: Hells Canyon on the Snake River and Mountain Home on the Payette River. They would have a total installed capacity of slightly over a million kilowatts, average annual power gen- eration of 5 billion kilowatt-hours, and a total active storage capacity of 5.1 million acre-feet. The Corps of Engineers has also recommended power development at other small dams on the Willamette. The completion of projects under construction, authorized, and recommended would bring the 18 |