Glass Pond No 1
Key Takeaway
Glass Pond No 1 is classified as high hazard in Pennsylvania. It was completed in 1919 and is 107 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 | 13 ft (taller than 21.2% in PA) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 293 acre-ft |
| Normal Storage | 79 acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1919 (107 years old) |
| NID ID | PA00081 |
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
GLASS POND ONE, LTD.
Private
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High Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Glass Pond No 1?
Glass Pond No 1 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 Glass Pond No 1?
Glass Pond No 1 is owned by GLASS POND ONE, LTD. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glass Pond No 1 built?
Glass Pond No 1 was completed in 1919, making it 107 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 Glass Pond No 1?
Glass Pond No 1 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 Glass Pond No 1?
Glass Pond No 1 has a dam height of 13 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 Glass Pond No 1 last inspected?
Glass Pond No 1 was last inspected on November 16, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.