New Vienna Wastewater Treatment Lagoons

New Vienna Wastewater Treatment Lagoons is an earth dam located in Clinton County, Ohio, built in 1987. It carries a Significant hazard potential classification and has a fair condition assessment.

About New Vienna Wastewater Treatment Lagoons

The primary purpose of New Vienna Wastewater Treatment 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 New Vienna (local government). It impounds the East Fork Little Miami River - Offstream near Lynchburg.

The dam stands 14 feet tall and stretches 3,200 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 86 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1987, the structure is 39 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 04/24/2024.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateOhio
CountyClinton
Nearest CityLynchburg
River/StreamEast Fork Little Miami River - Offstream
Coordinates39.33000, -83.70333

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height14 ft
Dam Length3,200 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage86 acre-ft
Max Storage86 acre-ft
Normal Storage48 acre-ft
Surface Area8 acres
Drainage Area0 sq mi
Max Discharge28 cfs

Ownership & Safety

PurposeTailings
OwnerVillage of New Vienna
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection04/24/2024
Emergency Action PlanNo

Identifiers

NID IDOH01408
Federal IDOH01408
More InfoState Dam Safety Program

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