Knowlesville Marsh Dam
Key Takeaway
Knowlesville Marsh Dam is classified as low hazard in New York. It was completed in 1964 and is 62 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 11 ft (taller than 19.5% in NY) |
| Dam Length | 940 ft |
| Dam Type | Earth |
| Max Storage | 274 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 48 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | NY00381 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
US FISH AND WILDLIFE SERVICE
Federal Government
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What is the hazard classification of Knowlesville Marsh Dam?
Knowlesville Marsh Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Knowlesville Marsh Dam?
Knowlesville Marsh Dam is owned by US FISH AND WILDLIFE SERVICE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Knowlesville Marsh Dam built?
Knowlesville Marsh Dam was completed in 1964, making it 62 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 Knowlesville Marsh Dam?
Knowlesville Marsh Dam serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Knowlesville Marsh Dam?
Knowlesville Marsh Dam has a dam height of 11 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 Knowlesville Marsh Dam last inspected?
Knowlesville Marsh Dam was last inspected on July 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.