Twin Falls Reservoir Will Drop This Week During Dam Inspection

TWIN FALLS, Idaho — The reservoir above the Twin Falls Power Plant will be lowered as much as two feet, beginning Wednesday evening, to allow for a routine inspection of the dam. This drawdown will restrict access to the Twin Falls Park boat ramp.

Idaho Power will begin drawing the reservoir down on Wednesday evening. After engineers complete their inspection on Thursday (Oct. 28), the reservoir will begin to refill. Water levels should return to normal sometime on Friday, depending on the amount of water coming from upstream.

The lower water level will mean some boats will not be able to launch, depending on the size of the trailer. Boaters should use extra caution when using the ramp during low water.

Idaho Power built the original Twin Falls Power Plant in 1935 and updated it in 1995 with a diversion structure and two powerhouses with a total generating capacity of 52,898 kilowatts. The adjacent 10-acre park includes a picnic shelter and a viewpoint with interpretive panels. More information on the park is available at

About Idaho Power
Idaho Power, headquartered in vibrant and fast-growing Boise, Idaho, has been a locally operated energy company since 1916. Today, it serves a 24,000-square-mile area in Idaho and Oregon. The company’s goal to provide 100% clean energy by 2045 builds on its long history as a clean-energy leader that provides reliable service at affordable prices. With 17 low-cost hydroelectric projects at the core of its diverse energy mix, Idaho Power’s residential, business and agricultural customers pay among the nation’s lowest prices for electricity. Its 2,000 employees proudly serve more than 590,000 customers with a culture of safety first, integrity always and respect for all.

IDACORP Inc. (NYSE: IDA), Idaho Power’s independent publicly traded parent company, is also headquartered in Boise, Idaho. To learn more, visit or

Brad Bowlin
Communications Specialist
Idaho Power
208-388-2803 and