Jemima K

About Jemima K

The primary purpose of Jemima K is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is private-owned. It impounds the West Fork Beaver Creek Beaver Creek near Payette River.

The dam stands 71 feet tall and stretches 2,600 feet across, creates a reservoir covering 115 acres, has a storage capacity of 2,650 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/15/2017.

At 71 feet, this dam is taller than 96% of all dams in the United States.

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