Canonsburg
Key Takeaway
Canonsburg is classified as high hazard in Pennsylvania. It was completed in 1943 and is 83 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 | 45 ft (taller than 81.2% in PA) |
| Dam Length | 525 ft |
| Dam Type | Gravity |
| Max Storage | 1.8K acre-ft |
| Normal Storage | 820 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 46 sq mi |
| Year Completed | 1943 (83 years old) |
| NID ID | PA00493 |
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 FISH & BOAT COMMISSION
State Government
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Significant HazardFrequently Asked Questions
What is the hazard classification of Canonsburg?
Canonsburg 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?
Canonsburg is owned by PA FISH & BOAT COMMISSION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Canonsburg built?
Canonsburg was completed in 1943, making it 83 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?
Canonsburg 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?
Canonsburg has a dam height of 45 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 last inspected?
Canonsburg was last inspected on September 21, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.