Tennanah Lake Dam
New York, Sullivan County, TROUT BROOK
Location
| State | New York |
| County | Sullivan |
| River | TROUT BROOK |
| Coordinates | 41.89556, -74.98306 |
Physical Characteristics
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 41 ft |
| NID Storage | 0 acre-ft |
| Max Storage | - |
| Surface Area | - |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Poor |
| EAP Status | No |
| Last Inspection | April 30, 2025 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1914 |
| Primary Purpose | Recreation |
| Dam Type | Concrete |
| Owner Type | Private |
| Owner | BLUE MOUNTAIN ASSOCIATES;BLUE MOUNTAIN ASSOCIATES |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.