Larchwood Lake Dam
Key Takeaway
Larchwood Lake Dam is classified as high hazard in New York. It was completed in 1969 and is 57 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 | 36 ft (taller than 85.3% in NY) |
| Dam Length | 260 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 298 acre-ft |
| Surface Area | 57 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1969 (57 years old) |
| NID ID | NY00727 |
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
LARCHWOOD LAKE HOME OWNERS ASSOCIATION
Private
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High Hazard 50 ftFrequently Asked Questions
What is the hazard classification of Larchwood Lake Dam?
Larchwood 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 Larchwood Lake Dam?
Larchwood Lake Dam is owned by LARCHWOOD LAKE HOME OWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Larchwood Lake Dam built?
Larchwood Lake Dam was completed in 1969, making it 57 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 Larchwood Lake Dam?
Larchwood Lake Dam 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 Larchwood Lake Dam?
Larchwood Lake Dam has a dam height of 36 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 Larchwood Lake Dam last inspected?
Larchwood Lake Dam was last inspected on November 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.