How much did the Boise Project cost? When was it built?
The Boise Project was first authorized in 1905. Deer Flat Dams (a complex of 3 dams) were completed by 19ll, Arrowrock Dam and Reservoir commenced storing water in 1915, Boise River Diversion Dam was completed by 1908, and Anderson Ranch Dam was completed in 1950. Deadwood Dam was completed in 1931. On the Payette River, Black Canyon Dam was completed in 1924 and Cascade Dam and Reservoir was completed in 1948. The cost of plant, property, and equipment for the Boise Project was estimated at approximately $68.7 million, as of June 30, 1957, according to Reclamation Repayments and Payout Schedules, 1902-1957.
