Ligonier Reservoir
Key Takeaway
Ligonier Reservoir is classified as high hazard in Pennsylvania. It was completed in 1954 and is 72 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 | 35 ft (taller than 72.1% in PA) |
| Dam Length | 510 ft |
| Dam Type | Earth |
| Max Storage | 64 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1954 (72 years old) |
| NID ID | PA00477 |
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
LIGONIER TOWNSHIP AUTHORITY
Local Government
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Significant Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Ligonier Reservoir?
Ligonier Reservoir 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 Ligonier Reservoir?
Ligonier Reservoir is owned by LIGONIER TOWNSHIP AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ligonier Reservoir built?
Ligonier Reservoir was completed in 1954, making it 72 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 Ligonier Reservoir?
Ligonier Reservoir 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 Ligonier Reservoir?
Ligonier Reservoir has a dam height of 35 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 Ligonier Reservoir last inspected?
Ligonier Reservoir was last inspected on September 23, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.