Philadelphia Mills
Key Takeaway
Philadelphia Mills is classified as high hazard in Pennsylvania. It was completed in 1994 and is 32 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 | 24 ft (taller than 52.7% in PA) |
| Dam Length | 1,125 ft |
| Dam Type | Earth |
| Max Storage | 77 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1994 (32 years old) |
| NID ID | PA01426 |
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
FRANKLIN MILLS ASSOCIATES
Private
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What is the hazard classification of Philadelphia Mills?
Philadelphia Mills 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 Philadelphia Mills?
Philadelphia Mills is owned by FRANKLIN MILLS ASSOCIATES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Philadelphia Mills built?
Philadelphia Mills was completed in 1994, making it 32 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 Philadelphia Mills?
Philadelphia Mills serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Philadelphia Mills?
Philadelphia Mills has a dam height of 24 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 Philadelphia Mills last inspected?
Philadelphia Mills was last inspected on January 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.