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 76–100 of 147
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lower Damon Reservoir Dam Cheshire County | 13 | 1832 | High | Poor |
| Lovell Lake Dam Carroll County | 12 | 1910 | High | Poor |
| Loon Lake Dam Sullivan County | 15 | 1920 | High | Poor |
| Locke 1 Dam Grafton County | 27 | 1970 | Low | Poor |
| Little Cub Pond Dam Rockingham County | 11 | 1934 | Low | Poor |
| Lake Wicwas Dam Belknap County | 7 | 1937 | Low | Poor |
| Lake Waukewan Dam Belknap County | 15 | 1880 | High | Poor |
| Lake Kanasatka Dam Carroll County | 17 | 1928 | Significant | Poor |
| Lake Gloriette Dike Coos County | 34 | 1913 | High | Poor |
| Lake Gloriette Dam Coos County | 33 | 1913 | High | Poor |
| Kimball Lake Dam Merrimack County | 7 | 1930 | Low | Poor |
| Kenneth Hill Pond Dam Strafford County | 12 | 1970 | Significant | Poor |
| Kelley'S Falls Dam Hillsborough County | 31 | 1916 | High | Poor |
| Jones Pond Dike Carroll County | 12 | 1981 | Significant | Poor |
| Jones Dam Strafford County | 21 | 1924 | High | Poor |
| Jackman Reservoir Dam Hillsborough County | 43 | 1926 | High | Poor |
| Island Pond Dam Cheshire County | 17 | 1920 | Low | Poor |
| Huckins Mill Pond Dam Carroll County | 10 | 1947 | Low | Poor |
| Horn Pond Dam Carroll County | 14 | 1930 | High | Poor |
| Hoit Road Marsh Dam Merrimack County | 9 | 1968 | Low | Poor |
| High View Wildlife Pond Dam Sullivan County | 27 | 1968 | Low | Poor |
| Highland Lake Dam Cheshire County | 11 | 1911 | High | Poor |
| Harris Brook Reservoir Dam Grafton County | 22 | 1903 | Significant | Poor |
| Harantis Lake Dam Rockingham County | 14 | 1930 | Significant | Poor |
| Gumpas Pond Dam Hillsborough County | 10 | 1900 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.