Dorothy Mine Pond Dam Reservoir Report
Last Updated: December 6, 2025
Dorothy Mine Pond Dam, located in Glen Robins, Ohio, stands as a testament to the mining history of the region, with a primary purpose of tailings management.
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Summary
Constructed in 1950 by the Y & O Coal Company, this private-owned earth dam reaches a height of 48.2 feet and spans 275 feet in length. The dam's storage capacity of 109.3 acre-feet serves to control Parkers Run, with a maximum discharge capacity of 8500 cubic feet per second.
Regulated by the Department of Natural Resources in Ohio, Dorothy Mine Pond Dam has been deemed to have a significant hazard potential with a fair condition assessment as of November 2017. Despite its age, the dam continues to play a crucial role in managing water resources in the area, with a normal storage capacity of 14.3 acre-feet and a surface area of 2 acres. With regular inspections and enforcement in place, the dam ensures the safety and sustainability of the surrounding environment for years to come.
Year Completed |
1950 |
Dam Length |
275 |
Dam Height |
48.2 |
River Or Stream |
PARKERS RUN |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
1.3 |
Nid Storage |
109.3 |
Hazard Potential |
Significant |
Nid Height |
48 |
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.
Dorothy Mine Pond Dam