Zimmer Waste Water Pond Complex Dam

About Zimmer Waste Water Pond Complex Dam

The primary purpose of Zimmer Waste Water Pond Complex Dam is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Dynegy Zimmer, Llc (public utility). It impounds the Ohio River - Offstream near Point Pleasant.

The dam stands 21 feet tall and stretches 3,900 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 244 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1989, the structure is 37 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. The most recent inspection on record was 05/18/2023.

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