Lower Great Falls
New Hampshire — Strafford County — Salmon Falls River
Location
| State | New Hampshire |
| County | Strafford |
| River | Salmon Falls River |
| Coordinates | 43.25440, -70.84460 |
Physical Characteristics
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 270 ft |
| NID Storage | 472 acre-ft |
| Max Storage | 472 acre-ft |
| Surface Area | 32 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | May 19, 2022 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1984 |
| Primary Purpose | Hydroelectric |
| Dam Type | Masonry |
| Owner Type | Not Listed |
| Other Name | Somersworth Dam |
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.