Errol
| Dam Name | Errol |
| River | Androscoggin River |
| Administration City | New Hampshire |
| Country | United States |
| Year | 1887 |
| Dam Height | 8 |
| Dam Length | 62 |
| Area(Sqkm) | 31.8 |
| Area(Polygonal) | 31.8 |
| Capital Expenditure | 147.1 |
| Depth(M) | 4.6 |
| Avg Displacement Of Water | 56307 |
| Catchment Area In Sqkm | 2683 |
| Main Usage | Hydroelectricity |
| Status | 3: Fair |
| Longitude | -71.117917 |
| Latitude | 44.787917 |
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