Mineral Ridge Dam
Key Takeaway
Mineral Ridge Dam is classified as high hazard in Ohio. It was completed in 1932 and is 94 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 60 ft (taller than 95.9% in OH) |
| Dam Length | 3,480 ft |
| Dam Type | Earth |
| Max Storage | 62.0K acre-ft |
| Normal Storage | 36.3K acre-ft |
| Surface Area | 2,109 acres |
| Drainage Area | 81 sq mi |
| Max Discharge | 69,873 cfs |
| Year Completed | 1932 (94 years old) |
| NID ID | OH00337 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Mahoning Valley Sanitary District
Local Government
Nearby Dams
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Low Hazard 12 ftRock Island Lake Dam
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Low Hazard 34 ftYoungstown Upground Reservoir
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High Hazard 29 ftUpper Girard Lake Dam
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High Hazard 55 ftThompson Lake Dam
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Mineral Ridge Dam?
Mineral Ridge Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mineral Ridge Dam?
Mineral Ridge Dam is owned by Mahoning Valley Sanitary District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mineral Ridge Dam built?
Mineral Ridge Dam was completed in 1932, making it 94 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Mineral Ridge Dam?
Mineral Ridge Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mineral Ridge Dam?
Mineral Ridge Dam has a dam height of 60 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Mineral Ridge Dam last inspected?
Mineral Ridge Dam was last inspected on July 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.