South Lake Dam (middle)
South Lake Dam (middle) is a concrete dam located in Putnam County, New York, built in 1921. It carries a Significant hazard potential classification and has a poor condition assessment.
About South Lake Dam (middle)
The primary purpose of South Lake Dam (middle) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Putnam County Department Of Public Works (local government). It impounds the Tr-stump Pond Stream near Ludingtonville.
The dam stands 12 feet tall and stretches 290 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 35 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1921, 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 05/23/2024.
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Location
| State | New York |
| County | Putnam |
| Nearest City | Ludingtonville |
| River/Stream | Tr-stump Pond Stream |
| Coordinates | 41.50306, -73.70500 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 290 ft |
| Year Completed | 1921 (105 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Putnam County Department of Public Works |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/23/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY13883 |
| Federal ID | NY13883 |
| More Info | State Dam Safety Program |