Rocky Glen
Key Takeaway
Rocky Glen is classified as high hazard in Pennsylvania. It was completed in 1903 and is 123 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 | 19 ft (taller than 41.1% in PA) |
| Dam Length | 350 ft |
| Dam Type | Gravity |
| Max Storage | 281 acre-ft |
| Normal Storage | 218 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1903 (123 years old) |
| NID ID | PA00369 |
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
WHITE & BLACK SAND
Private
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Significant Hazard 61 ftFrequently Asked Questions
What is the hazard classification of Rocky Glen?
Rocky Glen 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 Rocky Glen?
Rocky Glen is owned by WHITE & BLACK SAND (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rocky Glen built?
Rocky Glen was completed in 1903, making it 123 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 Rocky Glen?
Rocky Glen 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 Rocky Glen?
Rocky Glen has a dam height of 19 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 Rocky Glen last inspected?
Rocky Glen was last inspected on April 28, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.