Blue Mountain Lake
Key Takeaway
Blue Mountain Lake is classified as high hazard in Pennsylvania. It was completed in 1908 and is 118 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 | 9 ft (taller than 5.5% in PA) |
| Dam Length | 540 ft |
| Dam Type | Earth |
| Max Storage | 174 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1908 (118 years old) |
| NID ID | PA00627 |
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
BLUE MOUNTAIN LAKE ASSOC
Private
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High Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Blue Mountain Lake?
Blue Mountain 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 Blue Mountain Lake?
Blue Mountain Lake is owned by BLUE MOUNTAIN LAKE ASSOC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blue Mountain Lake built?
Blue Mountain Lake was completed in 1908, making it 118 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 Blue Mountain Lake?
Blue Mountain 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 Blue Mountain Lake?
Blue Mountain Lake has a dam height of 9 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 Blue Mountain Lake last inspected?
Blue Mountain Lake was last inspected on April 2, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.