Kirk Lake Dam
Kirk Lake Dam is an earth dam located in Putnam County, New York, built in 1871. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Kirk Lake Dam
The primary purpose of Kirk Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nycdep Dams East Of The Hudson River (local government). It impounds the Tr-muscoot River near Mahopac Falls.
The dam stands 28 feet tall and stretches 225 feet across, creates a reservoir covering 124 acres, has a maximum storage capacity of 1,822 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1871, the structure is one of the older dams in the region, with over a century and a half of service.
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 03/27/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New York |
| County | Putnam |
| Nearest City | Mahopac Falls |
| River/Stream | Tr-muscoot River |
| Coordinates | 41.37889, -73.75833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 225 ft |
| Year Completed | 1871 (155 years old) |
Storage & Hydraulics
| NID Storage | 1,822 acre-ft |
| Max Storage | 1,822 acre-ft |
| Normal Storage | 1,705 acre-ft |
| Surface Area | 124 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 3,650 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | NYCDEP DAMS EAST OF THE HUDSON RIVER |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/27/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00682 |
| Federal ID | NY00682 |
| More Info | State Dam Safety Program |