Garnet Lake Dam
Key Takeaway
Garnet Lake Dam is classified as high hazard in New York. It was completed in 1903 and is 123 years old. Its primary use is fire protection. 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 | 15 ft (taller than 37.1% in NY) |
| Dam Length | 160 ft |
| Dam Type | Earth |
| Max Storage | 2.5K acre-ft |
| Normal Storage | 957 acre-ft |
| Surface Area | 287 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 420 cfs |
| Year Completed | 1903 (123 years old) |
| NID ID | NY01167 |
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
GARNET LAKE CIVIC ASSOCIATION;TOWN OF JOHNSBURGH
Local Government
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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Garnet Lake Dam?
Garnet Lake Dam 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 Garnet Lake Dam?
Garnet Lake Dam is owned by GARNET LAKE CIVIC ASSOCIATION;TOWN OF JOHNSBURGH (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Garnet Lake Dam built?
Garnet Lake Dam 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 Garnet Lake Dam?
Garnet Lake Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Garnet Lake Dam?
Garnet Lake Dam has a dam height of 15 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 Garnet Lake Dam last inspected?
Garnet Lake Dam was last inspected on July 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.