South Vienna Wwt Lagoons

About South Vienna Wwt Lagoons

The primary purpose of South Vienna Wwt Lagoons 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 Village Of South Vienna (local government). It impounds the Offstream-beaver Creek near Harmony.

The dam stands 26 feet tall and stretches 500 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 29 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1992, the structure is 34 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 10/29/2024.

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