Lake Suzanne Dam
Key Takeaway
Lake Suzanne Dam is classified as high hazard in New York. It was completed in 1986 and is 40 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 | 19 ft (taller than 53.6% in NY) |
| Dam Length | 430 ft |
| Dam Type | Earth |
| Max Storage | 94 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1986 (40 years old) |
| NID ID | NY00760 |
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
ROCKLAND COUNTY HIGHWAY DEPARTMENT;TOWN OF RAMAPO
Local Government
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Lake Suzanne Dam?
Lake Suzanne 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 Lake Suzanne Dam?
Lake Suzanne Dam is owned by ROCKLAND COUNTY HIGHWAY DEPARTMENT;TOWN OF RAMAPO (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Suzanne Dam built?
Lake Suzanne Dam was completed in 1986, making it 40 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 Lake Suzanne Dam?
Lake Suzanne 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 Lake Suzanne Dam?
Lake Suzanne Dam has a dam height of 19 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 Lake Suzanne Dam last inspected?
Lake Suzanne Dam was last inspected on November 23, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.