Alder Lake Dam
Key Takeaway
Alder Lake Dam is classified as low hazard in New York. It was completed in 1994 and is 32 years old. Its primary use is recreation.
Physical Details
| Dam Height | 18 ft (taller than 49.5% in NY) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 480 acre-ft |
| Normal Storage | 397 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 400 cfs |
| Year Completed | 1994 (32 years old) |
| NID ID | NY01222 |
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
NYS DEC - DIVISION OF FISH AND WILDLIFE
State Government
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Significant Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Alder Lake Dam?
Alder Lake 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 Alder Lake Dam?
Alder Lake Dam is owned by NYS DEC - DIVISION OF FISH AND WILDLIFE (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Alder Lake Dam built?
Alder Lake Dam was completed in 1994, making it 32 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 Alder Lake Dam?
Alder 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 Alder Lake Dam?
Alder Lake Dam has a dam height of 18 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 Alder Lake Dam last inspected?
Alder Lake Dam was last inspected on August 28, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.