Dunmore No 1
Key Takeaway
Dunmore No 1 is classified as high hazard in Pennsylvania. It was completed in 1877 and is 149 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 | 47 ft (taller than 82.9% in PA) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 603 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 5 sq mi |
| Year Completed | 1877 (149 years old) |
| NID ID | PA00364 |
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
PA AMERICAN WATER COMPANY
Private
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High Hazard 64 ftFrequently Asked Questions
What is the hazard classification of Dunmore No 1?
Dunmore No 1 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 Dunmore No 1?
Dunmore No 1 is owned by PA AMERICAN WATER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dunmore No 1 built?
Dunmore No 1 was completed in 1877, making it 149 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 Dunmore No 1?
Dunmore No 1 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 Dunmore No 1?
Dunmore No 1 has a dam height of 47 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 Dunmore No 1 last inspected?
Dunmore No 1 was last inspected on March 9, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.