Colyer Lake
Key Takeaway
Colyer Lake is classified as high hazard in Pennsylvania. It was completed in 1966 and is 60 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 | 38 ft (taller than 75.2% in PA) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 1.7K acre-ft |
| Normal Storage | 1.0K acre-ft |
| Surface Area | 77 acres |
| Drainage Area | 8 sq mi |
| Year Completed | 1966 (60 years old) |
| NID ID | PA00448 |
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
PA FISH & BOAT COMMISSION
State Government
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Colyer Lake?
Colyer 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 Colyer Lake?
Colyer Lake is owned by PA FISH & BOAT COMMISSION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Colyer Lake built?
Colyer Lake was completed in 1966, making it 60 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 Colyer Lake?
Colyer 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 Colyer Lake?
Colyer Lake has a dam height of 38 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 Colyer Lake last inspected?
Colyer Lake was last inspected on June 26, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.