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 26–50 of 664
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Badger Brook Nh-107 Embankment Dam Belknap County | 48 | — | Undetermined | Not Rated |
| Baker Brook Pond Dam Grafton County | 11 | 1928 | Significant | Poor |
| Baker River Site 11a Dam Grafton County | 24 | 1971 | High | Satisfactory |
| Baker River Site 11 Dam Grafton County | 24 | 1971 | High | Poor |
| Baker River Site 2 Dam Grafton County | 68 | 1965 | High | Fair |
| Baker River Site 5 Dam Grafton County | 53 | 1967 | High | Poor |
| Baker River Site 5 Dike Grafton County | 20 | 1969 | Low | Satisfactory |
| Baker River Site 6a Dam Grafton County | 68 | 1975 | High | Poor |
| Baker River Site 6 Dam Grafton County | 14 | 1969 | Significant | Satisfactory |
| Baker River Site 8 Dam Grafton County | 63 | 1967 | High | Satisfactory |
| Ballard Pond Mill Dam Rockingham County | 21 | 1941 | Significant | Satisfactory |
| Ballard Pond Upper Dam Rockingham County | 7 | 1935 | Low | Poor |
| Balsams Mohawk River Dam Coos County | 55 | — | Significant | Not Rated |
| Balsams Wastewater Lagoons Dam Coos County | 28 | 1965 | Significant | Fair |
| Baltic Mills Dam Grafton County | 21 | 1919 | Low | Not Rated |
| Bancroft Reservoir Dam Cheshire County | 15 | 1935 | Low | Poor |
| Barnstead Parade Dam Belknap County | 16 | 1830 | High | Poor |
| Baxter Lake Center Dike Strafford County | 10 | 1923 | Low | Fair |
| Baxter Lake East Dike Strafford County | 10 | 1923 | Low | Fair |
| Baxter Lake Main Dam Strafford County | 19 | 1923 | Significant | Fair |
| Beards Creek Dam Strafford County | 16 | 1953 | Significant | Satisfactory |
| Bear Hill Pond Dam Merrimack County | 7 | 1885 | Low | Fair |
| Bear Pond Dam Merrimack County | 8 | 1932 | Low | Satisfactory |
| Beaver Brook Assoc Wldlife Pond Dam Hillsborough County | 12 | 1968 | Low | Fair |
| Beaver Brook Dam Rockingham County | 7 | 1929 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.