Larchmont Dam
Larchmont Dam is a masonry dam located in Westchester County, New York, built in 1925. It carries a Significant hazard potential classification and has a poor condition assessment.
About Larchmont Dam
Larchmont Dam is a dam in Westchester, New York. The dam is owned by Village Of Larchmont (local government). It impounds the Sheldrake River near Larchmont.
The dam stands 10 feet tall and stretches 210 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 37 acre-feet. Completed in 1925, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/21/2024.
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Location
| State | New York |
| County | Westchester |
| Nearest City | Larchmont |
| River/Stream | Sheldrake River |
| Coordinates | 40.95000, -73.77028 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 210 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 5 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | VILLAGE OF LARCHMONT |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 03/21/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY13625 |
| Federal ID | NY13625 |
| More Info | State Dam Safety Program |