Lounsbury Pond Dam
Lounsbury Pond Dam is a masonry dam located in Westchester County, New York, built in 1919. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lounsbury Pond Dam
The primary purpose of Lounsbury Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Westchester County Dept Of Parks & Recreation (local government). It impounds the Dickey Brook near Peekskill.
The dam stands 15 feet tall and stretches 80 feet across, creates a reservoir covering 8 acres, and has a maximum storage capacity of 40 acre-feet. Completed in 1919, 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. 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.
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Location
| State | New York |
| County | Westchester |
| Nearest City | Peekskill |
| River/Stream | Dickey Brook |
| Coordinates | 41.26750, -73.92611 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 80 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 8 acres |
| Max Discharge | 120 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | WESTCHESTER COUNTY DEPT OF PARKS & RECREATION |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/02/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY13524 |
| Federal ID | NY13524 |
| More Info | State Dam Safety Program |