Cossayuna Lake Outlet Dam
Key Takeaway
Cossayuna Lake Outlet Dam is classified as low hazard in New York. It was completed in 1815 and is 211 years old. Its primary use is recreation.
Physical Details
| Dam Height | 10 ft (taller than 12.4% in NY) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 7.9K acre-ft |
| Normal Storage | 7.9K acre-ft |
| Surface Area | 659 acres |
| Drainage Area | 12 sq mi |
| Year Completed | 1815 (211 years old) |
| NID ID | NY00016 |
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
Cossayuna Lake Improvement Inc
Private
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Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Cossayuna Lake Outlet Dam?
Cossayuna Lake Outlet 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 Cossayuna Lake Outlet Dam?
Cossayuna Lake Outlet Dam is owned by Cossayuna Lake Improvement Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cossayuna Lake Outlet Dam built?
Cossayuna Lake Outlet Dam was completed in 1815, making it 211 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 Cossayuna Lake Outlet Dam?
Cossayuna Lake Outlet 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 Cossayuna Lake Outlet Dam?
Cossayuna Lake Outlet Dam has a dam height of 10 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 Cossayuna Lake Outlet Dam last inspected?
Cossayuna Lake Outlet Dam was last inspected on July 20, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.