Williams Run
Key Takeaway
Williams Run is classified as high hazard in Pennsylvania. It was completed in 1956 and is 70 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 | 43 ft (taller than 79.6% in PA) |
| Dam Length | 370 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 5 sq mi |
| Year Completed | 1956 (70 years old) |
| NID ID | PA00432 |
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
NANTY GLO WATER AUTHORITY
Local Government
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Significant Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Williams Run?
Williams 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 Williams Run?
Williams Run is owned by NANTY GLO WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Williams Run built?
Williams Run was completed in 1956, making it 70 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 Williams Run?
Williams Run 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 Williams Run?
Williams Run has a dam height of 43 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 Williams Run last inspected?
Williams Run was last inspected on September 23, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.