Lake Wynonah
Key Takeaway
Lake Wynonah is classified as high hazard in Pennsylvania. It was completed in 1971 and is 55 years old. Its primary use is recreation. 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 | 92 ft (taller than 95.1% in PA) |
| Dam Length | 950 ft |
| Dam Type | Earth |
| Max Storage | 6.0K acre-ft |
| Normal Storage | 5.0K acre-ft |
| Surface Area | 163 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1971 (55 years old) |
| NID ID | PA00702 |
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
LAKE WYNONAH PROPERTY OWNERS ASSOCIATION
Private
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What is the hazard classification of Lake Wynonah?
Lake Wynonah 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 Lake Wynonah?
Lake Wynonah is owned by LAKE WYNONAH PROPERTY OWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Wynonah built?
Lake Wynonah was completed in 1971, making it 55 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 Lake Wynonah?
Lake Wynonah serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Wynonah?
Lake Wynonah has a dam height of 92 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 Lake Wynonah last inspected?
Lake Wynonah was last inspected on April 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.