Duffys Run
Key Takeaway
Duffys Run is classified as high hazard in Pennsylvania. It was completed in 1966 and is 60 years old. Its primary use is debris control. 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 | 14 ft (taller than 23.9% in PA) |
| Dam Length | 81 ft |
| Dam Type | Gravity |
| Max Storage | 1 acre-ft |
| Drainage Area | 0 sq mi |
| Year Completed | 1966 (60 years old) |
| NID ID | PA01353 |
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
BOROUGH OF PLYMOUTH
Local Government
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High Hazard 65 ftFrequently Asked Questions
What is the hazard classification of Duffys Run?
Duffys Run 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 Duffys Run?
Duffys Run is owned by BOROUGH OF PLYMOUTH (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Duffys Run built?
Duffys Run was completed in 1966, making it 60 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 Duffys Run?
Duffys Run serves the following purposes: Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Duffys Run?
Duffys Run has a dam height of 14 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 Duffys Run last inspected?
Duffys Run was last inspected on August 26, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.