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 226–250 of 300
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Richardson Pond Dam Strafford County | 8 | 1935 | Low | Poor |
| Riverdale Dam Hillsborough County | 10 | — | Low | Not Rated |
| Riverside Coos County | 21 | 1970 | Low | Satisfactory |
| Robbins Pond Dam Cheshire County | 10 | 1918 | Low | Satisfactory |
| Robb Reservoir Dam Cheshire County | 13 | 1912 | Low | Fair |
| Rockwood Pond Dam Cheshire County | 11 | 1915 | Low | Fair |
| Rodgers Pond Dam Cheshire County | 14 | 1922 | Low | Fair |
| Rollins Pond Dam Belknap County | 17 | 1800 | Low | Poor |
| Rowe Dam Strafford County | 15 | 1935 | Low | Satisfactory |
| Russell Reservoir Dam Cheshire County | 12 | 1923 | Low | Fair |
| Salmon Brook Dam Hillsborough County | 28 | 1963 | Low | Not Rated |
| Salmon Brook I Dam Hillsborough County | 17 | 1887 | Low | Not Rated |
| Sand Pond Dam Cheshire County | 12 | 1925 | Low | Fair |
| Sauls Pond Dam Rockingham County | 10 | 1988 | Low | Poor |
| Sawmill Coos County | 15 | 1965 | Low | Satisfactory |
| Scott Bog Pond Dam Coos County | 9 | 1942 | Low | Satisfactory |
| Scribner Road Dam Rockingham County | 12 | 1930 | Low | Poor |
| Seavey Pond Dike Access Road Dam Rockingham County | 10 | 2002 | Low | Fair |
| Seavey Pond Outlet Dam Rockingham County | 8 | — | Low | Poor |
| Second Connecticut Lake Dam Coos County | 28 | 1849 | Low | Fair |
| Sheep Davis Road Dam Merrimack County | 24 | 1990 | Low | Fair |
| Shehan Pond Dam Coos County | 25 | 1960 | Low | Poor |
| Shelburne Coos County | 17 | 1906 | Low | Satisfactory |
| Shellcamp Pond Dam Belknap County | 12 | 1920 | Low | Satisfactory |
| Silver Lake Dam Carroll County | 8 | 1926 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.