Errol
New Hampshire — Coos County
Location
| State | New Hampshire |
| County | Coos |
| Coordinates | 44.78660, -71.12490 |
Physical Characteristics
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 205 ft |
| NID Storage | 80,000 acre-ft |
| Max Storage | 80,000 acre-ft |
| Surface Area | 7,850 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1887 |
| Primary Purpose | Hydroelectric |
| Dam Type | — |
| Owner Type | — |
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.