Loon Lake Dam
New Hampshire, Sullivan County, PISCATAQUOG RIVER
Location
| State | New Hampshire |
| County | Sullivan |
| River | PISCATAQUOG RIVER |
| Coordinates | 43.40660, -72.14550 |
Physical Characteristics
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 340 ft |
| NID Storage | 8,600 acre-ft |
| Max Storage | 8,600 acre-ft |
| Surface Area | 278 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | September 3, 2024 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1913 |
| Primary Purpose | Recreation |
| Dam Type | Rockfill |
| Owner Type | State |
| Owner | NH DES WATER DIVISION |
| Other Name | The Overflow, Lake Su |
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.