Forest Lake
Key Takeaway
Forest Lake is classified as significant hazard in Pennsylvania. It was completed in 1842 and is 184 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 16% in PA) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 720 acre-ft |
| Normal Storage | 604 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1842 (184 years old) |
| NID ID | PA00968 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
FOREST LAKE COTTAGE OWNERS ASSOCIATION
Private
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Griffis
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High Hazard 37 ftFrequently Asked Questions
What is the hazard classification of Forest Lake?
Forest Lake is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Forest Lake?
Forest Lake is owned by FOREST LAKE COTTAGE OWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Forest Lake built?
Forest Lake was completed in 1842, making it 184 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 Forest Lake?
Forest 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 Forest Lake?
Forest Lake has a dam height of 12 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 Forest Lake last inspected?
Forest Lake was last inspected on July 8, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.