New Hampshire Dams
664 dams tracked by the National Inventory of Dams
Total Dams
664
High Hazard
162
24.4%
Poor / Unsatisfactory
152
Average Age
100 yrs
Hazard Classification
High162 (24.4%)
Significant185 (27.9%)
Low300 (45.2%)
Condition Assessment
Satisfactory267 (40.2%)
Fair169 (25.5%)
Poor / Unsatisfactory152 (22.9%)
Not Rated76 (11.4%)
Federal
22
State
170
Local
195
Private
261
Tallest Dams
- Comerford 170 ft
- Moore 149 ft
- Otter Brook Dam119 ft
- Franklin Falls Dam116 ft
- Everett Dam115 ft
High Hazard Dams
- Comerford High
- Moore High
- Otter Brook DamHigh
- Franklin Falls DamHigh
- Everett DamHigh
Poor Condition Dams
All Dams in New Hampshire
Showing 176–200 of 664
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| East Inlet Dam Coos County | 13 | 1900 | Low | Satisfactory |
| Eastman Falls Merrimack County | 43 | 1937 | Significant | Satisfactory |
| Eastman Holding Pond Dam Sullivan County | 23 | — | Low | Not Rated |
| Eastman Lake Dam Sullivan County | 35 | 1972 | High | Satisfactory |
| Eastman Treatment Lagoons Dam Sullivan County | 18 | — | Significant | Not Rated |
| Echo Lake Dam Grafton County | 7 | 1990 | Low | Satisfactory |
| Edward MacDowell Dam Hillsborough County | 63 | 1950 | High | Not Available |
| Eel Pond Dam Rockingham County | 15 | — | Low | Satisfactory |
| Emery Road Dam Merrimack County | 10 | 1910 | Low | Fair |
| Epping Wastewater Lagoons Dam Rockingham County | 9 | 1970 | Significant | Fair |
| Errol Coos County | 25 | 1887 | Low | Satisfactory |
| Evas Marsh Dam Hillsborough County | 9 | 1962 | Low | Poor |
| Everett Dam Hillsborough County | 115 | 1961 | High | Not Available |
| Everett Dam - Dike P-1 Hillsborough County | 50 | 1961 | High | Not Available |
| Everett Dam - Dike P-2 Hillsborough County | 30 | 1961 | High | Not Available |
| Exeter Reservoir Dam Rockingham County | 15 | 1886 | High | Poor |
| Exeter River Dam Rockingham County | 15 | 1927 | Significant | Poor |
| Exeter Sewage Holding Pond Dam Rockingham County | 10 | 1989 | Significant | Satisfactory |
| Exeter Sewage Lagoon Dam Rockingham County | 12 | 1989 | Significant | Satisfactory |
| Faraway Pond Dam Coos County | 20 | 1975 | Significant | Satisfactory |
| Farmington Levee Strafford County | 15 | 1956 | High | Fair |
| Farrar Marsh Dam Hillsborough County | 11 | 1978 | Significant | Fair |
| Fenn Dam Grafton County | 25 | 1984 | Low | Unsatisfactory |
| Ferson Pond Dam Grafton County | 7 | 1998 | Low | Poor |
| Fifield Farm Pond Dam Merrimack County | 13 | 1966 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.