Lyons Falls - Mill 3
Key Takeaway
Lyons Falls - Mill 3 is classified as low hazard in New York. It was completed in 1922 and is 104 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 10 ft (taller than 12.4% in NY) |
| Dam Length | 430 ft |
| Dam Type | Concrete |
| Max Storage | 730 acre-ft |
| Normal Storage | 730 acre-ft |
| Surface Area | 130 acres |
| Drainage Area | 870 sq mi |
| Max Discharge | 35,513 cfs |
| Year Completed | 1922 (104 years old) |
| NID ID | NY01503 |
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
Northbrook Lyons Falls, LLC
Private
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Lyons Falls - Mill 3?
Lyons Falls - Mill 3 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 Lyons Falls - Mill 3?
Lyons Falls - Mill 3 is owned by Northbrook Lyons Falls, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lyons Falls - Mill 3 built?
Lyons Falls - Mill 3 was completed in 1922, making it 104 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 Lyons Falls - Mill 3?
Lyons Falls - Mill 3 serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lyons Falls - Mill 3?
Lyons Falls - Mill 3 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 Lyons Falls - Mill 3 last inspected?
Lyons Falls - Mill 3 was last inspected on September 24, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.