Meigs-phillips I No. 1 Dam

About Meigs-phillips I No. 1 Dam

The primary purpose of Meigs-phillips I No. 1 Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Capstone Mining Company. It impounds the Long Run near Alledonia.

The dam stands 58 feet tall and stretches 460 feet across, creates a reservoir covering 28 acres, has a maximum storage capacity of 2,310 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 1987, the structure is 39 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 10/05/2022.

At 58 feet, this dam is taller than 95% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Ohio dam safety program can provide more specific information about emergency planning for this structure.

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