In addition, Palisades Dam, a multipurpose reservoir on the Snake River, provides flood control regulation, recreation, power, and holdover storage during years of average or above average precipitation to Minidoka Project lands. Ririe Dam, constructed by the Corps of Engineers on Willow Creek, also provides flood control regulation on this Snake River tributary within the Minidoka Project area. A full water supply is furnished to 216,796 acres and a supplemental supply to 946,846 acres. Water from Palisades Reservoir on the Palisades Project is instrumental in helping meet the Minidoka Project water requirements. Much of the power developed on the project is used for pumping water to lands lying above the gravity canals and for pumping drainage water.
Power also is furnished to several small communities in the area.
Minidoka Dam and Powerplant Minidoka Dam is a multi-purpose structure providing for irrigation, power production, flood control, recreation, fish and wildlife conservation and flood control for the lower portion of the Minidoka Project. The dam is located on the main stem of the Snake River, 13-miles northeast of Rupert, Idaho and is a zoned earth and rockfill structure constructed, operated and maintained by the Bureau of Reclamation. It has a structural height of 86 feet, a hydraulic height of 74 feet, and a crest length of 4,475 feet. The Lake extends 26 miles up the Snake River and has a shoreline of 80 miles. The reservoir serves as a storage and regulating reservoir as well as a diversion point for two canals.