Blanchester Reservoirs No. 1 & 2 Dam

About Blanchester Reservoirs No. 1 & 2 Dam

The primary purpose of Blanchester Reservoirs No. 1 & 2 Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Village Of Blanchester (local government). It impounds the Offstream near Blanchester.

The dam stands 10 feet tall and stretches 2,585 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 68 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1924, the structure is over a century 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 06/25/2024.

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