Errol
Errol is an other dam located in Coos County, New Hampshire, built in 1887. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Errol
The primary purpose of Errol is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Androscoggin River near Errol.
The dam stands 25 feet tall and stretches 205 feet across, creates a reservoir covering 7,850 acres, has a maximum storage capacity of 80,000 acre-feet, and collects water from a drainage area of 1,045 square miles. Completed in 1887, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/07/2018.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Hampshire |
| County | Coos |
| Nearest City | Errol |
| River/Stream | Androscoggin River |
| Coordinates | 44.78660, -71.12490 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 205 ft |
| Year Completed | 1887 (139 years old) |
Storage & Hydraulics
| NID Storage | 80,000 acre-ft |
| Max Storage | 80,000 acre-ft |
| Normal Storage | 80,000 acre-ft |
| Surface Area | 7,850 acres |
| Drainage Area | 1,045 sq mi |
| Max Discharge | 19,700 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/07/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00161 |
| Federal ID | NH00161 |
| More Info | State Dam Safety Program |