Ohio Power Company Pond Mb-144 Pond Reservoir Report
Last Updated: December 5, 2025
Ohio Power Company Pond Mb-144 Pond, located in Unionville, Ohio, is a privately owned dam regulated by the Department of Natural Resources.
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Summary
Constructed in 1968, this earth dam stands at a height of 30 feet and spans 450 feet in length. Serving primarily as a tailings storage facility, it has a storage capacity of 72.3 acre-feet, with a normal storage capacity of 39.1 acre-feet.
Situated on a tributary to Mans Fork, this low-hazard dam covers a surface area of 5.7 acres and drains a 0.46 square mile watershed. Inspected every 5 years, the dam's condition is assessed as fair, with a low hazard potential. The Emergency Action Plan (EAP) for this dam has been prepared and last revised in June 2020, ensuring that necessary safety measures are in place for any potential emergencies.
Water resource and climate enthusiasts will be intrigued by the unique features and regulatory aspects of Ohio Power Company Pond Mb-144 Pond. With its historical significance dating back to the late 1960s, this dam continues to play a crucial role in water management and tailings storage in the region. Its low hazard potential, coupled with regular inspections and a well-prepared EAP, underscores the commitment to safety and environmental stewardship by the dam's owners and regulatory agencies.
Year Completed |
1968 |
Dam Length |
450 |
Dam Height |
30 |
River Or Stream |
TRIBUTARY TO MANS FORK |
Primary Dam Type |
Earth |
Surface Area |
5.7 |
Drainage Area |
0.46 |
Nid Storage |
72.3 |
Hazard Potential |
Low |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Ohio Power Company Pond Mb-144 Pond