New Croton Reservoir Dam
New Croton Reservoir Dam is a concrete dam located in Westchester County, New York, built in 1906. It carries a High hazard potential classification and has a satisfactory condition assessment.
About New Croton Reservoir Dam
The primary purpose of New Croton Reservoir 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 Croton-on-hudson.
The dam stands 174 feet tall and stretches 1,218 feet across, creates a reservoir covering 2,260 acres, has a maximum storage capacity of 96,000 acre-feet, and collects water from a drainage area of 375 square miles. Completed in 1906, the structure is over a century old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/23/2024.
At 174 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New York dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New York |
| County | Westchester |
| Nearest City | Croton-on-hudson |
| River/Stream | Croton River |
| Coordinates | 41.22667, -73.85667 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 174 ft |
| Dam Height | 174 ft |
| Dam Length | 1,218 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 96,000 acre-ft |
| Max Storage | 96,000 acre-ft |
| Normal Storage | 72,900 acre-ft |
| Surface Area | 2,260 acres |
| Drainage Area | 375 sq mi |
| Max Discharge | 259,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | NYCDEP DAMS EAST OF THE HUDSON RIVER |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/23/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00046 |
| Federal ID | NY00046 |
| More Info | State Dam Safety Program |