Thompson Falls - Intake Dam A

About Thompson Falls - Intake Dam A

The primary purpose of Thompson Falls - Intake Dam A is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Northwestern Energy (private). It impounds the Clark Fork River, Pend Oreille.

The dam stands 62 feet tall and stretches 292 feet across, creates a reservoir covering 1,580 acres, has a maximum storage capacity of 24,450 acre-feet, and collects water from a drainage area of 21,113 square miles. Completed in 1915, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/31/2021.

At 62 feet, this dam is taller than 95% of all dams in the United States.

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