Muscoot Dam
Muscoot Dam is a masonry dam located in Westchester County, New York, built in 1906. It carries a Significant hazard potential classification.
About Muscoot Dam
The primary purpose of Muscoot Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Nycdep Dams East Of The Hudson River (local government). It impounds the Croton River near Stanwood.
The dam stands 57 feet tall and stretches 1,130 feet across, creates a reservoir covering 1,166 acres, has a maximum storage capacity of 15,000 acre-feet, and collects water from a drainage area of 316 square miles. Completed in 1906, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 04/04/2025.
At 57 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | New York |
| County | Westchester |
| Nearest City | Stanwood |
| River/Stream | Croton River |
| Coordinates | 41.26111, -73.70917 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 57 ft |
| Dam Height | 57 ft |
| Dam Length | 1,130 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 15,000 acre-ft |
| Max Storage | 15,000 acre-ft |
| Normal Storage | 10,750 acre-ft |
| Surface Area | 1,166 acres |
| Drainage Area | 316 sq mi |
| Max Discharge | 96,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | NYCDEP DAMS EAST OF THE HUDSON RIVER |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 04/04/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00061 |
| Federal ID | NY00061 |
| More Info | State Dam Safety Program |