Stillwater Lake
Key Takeaway
Stillwater Lake is classified as high hazard in Pennsylvania. It was completed in 1900 and is 126 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 | 8 ft (taller than 2.3% in PA) |
| Dam Length | 500 ft |
| Dam Type | Roller-Compacted Concrete |
| Max Storage | 3.0K acre-ft |
| Normal Storage | 1.3K acre-ft |
| Surface Area | 300 acres |
| Drainage Area | 13 sq mi |
| Year Completed | 1900 (126 years old) |
| NID ID | PA00772 |
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
BSA MINSI TRAIL COUNCIL
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Stillwater Lake?
Stillwater Lake 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 Stillwater Lake?
Stillwater Lake is owned by BSA MINSI TRAIL COUNCIL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stillwater Lake built?
Stillwater Lake was completed in 1900, making it 126 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 Stillwater Lake?
Stillwater Lake 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 Stillwater Lake?
Stillwater Lake has a dam height of 8 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 Stillwater Lake last inspected?
Stillwater Lake was last inspected on July 15, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.