Mahanoy Township No 2
Key Takeaway
Mahanoy Township No 2 is classified as high hazard in Pennsylvania. It was completed in 1991 and is 35 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 | 34 ft (taller than 70.6% in PA) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 112 acre-ft |
| Normal Storage | 68 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1991 (35 years old) |
| NID ID | PA00685 |
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
MAHANOY TOWNSHIP AUTHORITY
Local Government
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High Hazard 46 ftFrequently Asked Questions
What is the hazard classification of Mahanoy Township No 2?
Mahanoy Township No 2 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 Mahanoy Township No 2?
Mahanoy Township No 2 is owned by MAHANOY TOWNSHIP AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mahanoy Township No 2 built?
Mahanoy Township No 2 was completed in 1991, making it 35 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 Mahanoy Township No 2?
Mahanoy Township No 2 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 Mahanoy Township No 2?
Mahanoy Township No 2 has a dam height of 34 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 Mahanoy Township No 2 last inspected?
Mahanoy Township No 2 was last inspected on November 3, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.