Mckelvey Lake Dam Reservoir Report
Last Updated: December 5, 2025
Mckelvey Lake Dam, located in Mahoning, Ohio, serves as a critical water supply infrastructure designed by David M.
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Summary
Wise in 1926. The dam stands at a height of 73.2 feet and spans 450 feet in length, with a storage capacity of 4345 acre-feet and a surface area of 152 acres. Situated on Dry Run, this concrete dam plays a vital role in providing water for the surrounding area, with a maximum discharge capacity of 2442 cubic feet per second.
Despite its significant contribution to water supply, Mckelvey Lake Dam is facing challenges in terms of its condition assessment, with a poor rating and high hazard potential. The dam is under state regulation, inspection, and enforcement by the Department of Natural Resources, ensuring compliance with safety standards. However, the last inspection in 2016 revealed the need for improvement and maintenance to mitigate potential risks and ensure the dam's structural integrity.
As climate change impacts water resources and infrastructure, the maintenance and upkeep of dams like Mckelvey Lake Dam become even more crucial. With proper risk management measures and regular inspections, this dam can continue to fulfill its primary purpose of water supply while safeguarding the community against potential hazards.
Year Completed |
1926 |
Dam Length |
450 |
Dam Height |
73.2 |
River Or Stream |
DRY RUN |
Primary Dam Type |
Concrete |
Surface Area |
152 |
Drainage Area |
8.73 |
Nid Storage |
4345 |
Hazard Potential |
High |
Nid Height |
73 |
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.
Mckelvey Lake Dam