Muskingum River Lock And Dam No. 7

About Muskingum River Lock And Dam No. 7

The primary purpose of Muskingum River Lock And Dam No. 7 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Odnr, Division Of Parks & Watercraft (state). It impounds the Muskingum River near Mcconnelsville.

The dam stands 15 feet tall and stretches 472 feet across, creates a reservoir covering 442 acres, has a maximum storage capacity of 2,999 acre-feet, and collects water from a drainage area of 7,422 square miles. Completed in 1841, the structure is one of the older dams in the region, with over a century and a half of service.

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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/30/2023.

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