Mahoning Creek Dam
Key Takeaway
Mahoning Creek Dam is classified as high hazard in Pennsylvania. It was completed in 1941 and is 85 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 Length | 926 ft |
| Dam Type | Gravity |
| Max Storage | 94.0K acre-ft |
| Normal Storage | 9.6K acre-ft |
| Surface Area | 280 acres |
| Drainage Area | 340 sq mi |
| Max Discharge | 103,000 cfs |
| Year Completed | 1941 (85 years old) |
| NID ID | PA00107 |
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
USACE - Pittsburgh District
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Mahoning Creek Dam?
Mahoning Creek Dam 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 Mahoning Creek Dam?
Mahoning Creek Dam is owned by USACE - Pittsburgh District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mahoning Creek Dam built?
Mahoning Creek Dam was completed in 1941, making it 85 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 Mahoning Creek Dam?
Mahoning Creek Dam serves the following purposes: Flood Risk Reduction, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Mahoning Creek Dam last inspected?
Mahoning Creek Dam was last inspected on November 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.