Bitterroot No. 1

About Bitterroot No. 1

The primary purpose of Bitterroot No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bitterroot Ranch Limited Partnership (private). It impounds the Fox Draw Trib Of Alkali Creek.

The dam stands 33 feet tall and stretches 440 feet across, creates a reservoir covering 3 acres, has a storage capacity of 24 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/21/2025.

At 33 feet, this dam is taller than 78% of dams nationwide.

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