Pymatuning
Key Takeaway
Pymatuning is classified as high hazard in Pennsylvania. It was completed in 1933 and is 93 years old. Its primary use is flood risk reduction. 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 | 50 ft (taller than 84% in PA) |
| Dam Length | 2,400 ft |
| Dam Type | Earth |
| Max Storage | 445.0K acre-ft |
| Normal Storage | 188.0K acre-ft |
| Surface Area | 14,528 acres |
| Drainage Area | 160 sq mi |
| Year Completed | 1933 (93 years old) |
| NID ID | PA00176 |
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
DCNR
State Government
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Pymatuning?
Pymatuning 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 Pymatuning?
Pymatuning is owned by DCNR (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pymatuning built?
Pymatuning was completed in 1933, making it 93 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 Pymatuning?
Pymatuning serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Pymatuning?
Pymatuning has a dam height of 50 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 Pymatuning last inspected?
Pymatuning was last inspected on September 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.