Unionville
Key Takeaway
Unionville is classified as low hazard in New York. It was completed in 1907 and is 119 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 20 ft (taller than 56.3% in NY) |
| Dam Length | 350 ft |
| Dam Type | Concrete |
| Max Storage | 99 acre-ft |
| Normal Storage | 99 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 1,036 sq mi |
| Max Discharge | 11,500 cfs |
| Year Completed | 1907 (119 years old) |
| NID ID | NY00701 |
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
Erie Boulevard Hydropower, L.P.
Private
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High Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Unionville?
Unionville 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 Unionville?
Unionville is owned by Erie Boulevard Hydropower, L.P. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Unionville built?
Unionville was completed in 1907, making it 119 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 Unionville?
Unionville serves the following purposes: Hydroelectric, Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Unionville?
Unionville has a dam height of 20 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 Unionville last inspected?
Unionville was last inspected on July 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.