St. Clairsville Reservoir No. 2 Dam
Key Takeaway
St. Clairsville Reservoir No. 2 Dam is classified as high hazard in Ohio. It was completed in 1920 and is 106 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 | 31 ft (taller than 64.6% in OH) |
| Dam Length | 260 ft |
| Dam Type | Earth |
| Max Storage | 87 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 595 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | OH00794 |
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
City of St. Clairsville
Local Government
Nearby Dams
St. Clairsville Reservoir No. 1 Dam
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Significant Hazard 45 ftBelmont Lake Dam
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High Hazard 67 ftParker Pond Dam
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Low Hazard 32 ftGeorgetown Upper Pond No. 2 Dam
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Low Hazard 22 ftDickerson Slurry No. 3 Dam
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Significant Hazard 54 ftUpper Supply Dam
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of St. Clairsville Reservoir No. 2 Dam?
St. Clairsville Reservoir No. 2 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 St. Clairsville Reservoir No. 2 Dam?
St. Clairsville Reservoir No. 2 Dam is owned by City of St. Clairsville (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was St. Clairsville Reservoir No. 2 Dam built?
St. Clairsville Reservoir No. 2 Dam was completed in 1920, making it 106 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 St. Clairsville Reservoir No. 2 Dam?
St. Clairsville Reservoir No. 2 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 St. Clairsville Reservoir No. 2 Dam?
St. Clairsville Reservoir No. 2 Dam has a dam height of 31 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 St. Clairsville Reservoir No. 2 Dam last inspected?
St. Clairsville Reservoir No. 2 Dam was last inspected on October 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.