Big Boulder Lake A
Key Takeaway
Big Boulder Lake A is classified as high hazard in Pennsylvania. It was completed in 1957 and is 69 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 | 21 ft (taller than 46.9% in PA) |
| Dam Length | 759 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 920 acre-ft |
| Surface Area | 170 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1957 (69 years old) |
| NID ID | PA00615 |
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
BIG BOULDER CORPORATION
Private
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High Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Big Boulder Lake A?
Big Boulder Lake A 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 Big Boulder Lake A?
Big Boulder Lake A is owned by BIG BOULDER CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Boulder Lake A built?
Big Boulder Lake A was completed in 1957, making it 69 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 Big Boulder Lake A?
Big Boulder Lake A serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Big Boulder Lake A?
Big Boulder Lake A has a dam height of 21 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 Big Boulder Lake A last inspected?
Big Boulder Lake A was last inspected on January 21, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.