Indian Brook Reservoir Dam
Indian Brook Reservoir Dam is an earth dam located in Westchester County, New York, built in 1889. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Indian Brook Reservoir Dam
The primary purpose of Indian Brook 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 Village Of Ossining (local government). It impounds the Croton River near Crotonville.
The dam stands 43 feet tall and stretches 500 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 369 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1889, 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 01/02/2025.
At 43 feet, this dam is taller than 89% of dams nationwide.
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 | Crotonville |
| River/Stream | Croton River |
| Coordinates | 41.19135, -73.86525 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 500 ft |
| Year Completed | 1889 (137 years old) |
Storage & Hydraulics
| NID Storage | 369 acre-ft |
| Max Storage | 369 acre-ft |
| Normal Storage | 287 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 634 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | VILLAGE OF OSSINING |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/02/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00044 |
| Federal ID | NY00044 |
| More Info | State Dam Safety Program |