Middle Greenwich Dam
Key Takeaway
Middle Greenwich Dam is classified as significant hazard in New York. It was completed in 1902 and is 124 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 12.4% in NY) |
| Dam Length | 275 ft |
| Dam Type | Concrete |
| Max Storage | 80 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 401 sq mi |
| Year Completed | 1902 (124 years old) |
| NID ID | NY01070 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
BATTEN KILL HYDRO ASSOCIATES;BATTEN KILL HYDRO ASSOCIATES
Private
Nearby Dams
Upper Greenwich
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Low Hazard 14 ftLower Greenwich Dam
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Low Hazard 28 ftClark Mills Upper
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Low Hazard 20 ftSchuylerville
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High Hazard 43 ftNorthumberland Dam
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Middle Greenwich Dam?
Middle Greenwich Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Middle Greenwich Dam?
Middle Greenwich Dam is owned by BATTEN KILL HYDRO ASSOCIATES;BATTEN KILL HYDRO ASSOCIATES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middle Greenwich Dam built?
Middle Greenwich Dam was completed in 1902, making it 124 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 Middle Greenwich Dam?
Middle Greenwich Dam 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 Middle Greenwich Dam?
Middle Greenwich 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 Middle Greenwich Dam last inspected?
Middle Greenwich Dam was last inspected on August 30, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.