Canonsburg No 2
Key Takeaway
Canonsburg No 2 is classified as high hazard in Pennsylvania. It was completed in 1932 and is 94 years old. Its primary use is recreation. 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 | 36 ft (taller than 73.4% in PA) |
| Dam Length | 630 ft |
| Dam Type | Earth |
| Max Storage | 825 acre-ft |
| Normal Storage | 525 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1932 (94 years old) |
| NID ID | PA00506 |
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
PETERS TOWNSHIP
Local Government
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High Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Canonsburg No 2?
Canonsburg 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 Canonsburg No 2?
Canonsburg No 2 is owned by PETERS TOWNSHIP (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Canonsburg No 2 built?
Canonsburg No 2 was completed in 1932, making it 94 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 Canonsburg No 2?
Canonsburg No 2 serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Canonsburg No 2?
Canonsburg No 2 has a dam height of 36 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 Canonsburg No 2 last inspected?
Canonsburg No 2 was last inspected on September 25, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.