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
Condition Assessment
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 101–125 of 664
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Stevens Mill Merrimack County | 22 | 1930 | Significant | Satisfactory |
| Steels Pond Hillsborough County | 14 | 1909 | Significant | Satisfactory |
| Star Lake Dam Sullivan County | 7 | 1920 | Low | Satisfactory |
| Stark Pond Dam Merrimack County | 12 | 1760 | Low | Satisfactory |
| Squam Lake Grafton County | 17 | 1856 | High | Satisfactory |
| Sportsman Pond Dam Cheshire County | 15 | 1910 | Low | Satisfactory |
| Spoonwood Pond Dam Cheshire County | 12 | 1855 | Low | Not Rated |
| Spoons Pond Dam Cheshire County | 20 | 1966 | Low | Poor |
| Spofford Lake Dam Cheshire County | 11 | 1919 | Significant | Satisfactory |
| Spectacle Pond Dam Grafton County | 7 | 1915 | High | Satisfactory |
| Spaulding Pond Dam Strafford County | 19 | 1899 | Low | Satisfactory |
| South Milton Strafford County | 15 | 1893 | Low | Satisfactory |
| South Mill Pond Dam Rockingham County | 14 | 1983 | Low | Satisfactory |
| South Berwick Strafford County | 18 | 1923 | Low | Satisfactory |
| Souhegan Site 8 South Dike Hillsborough County | 9 | 1977 | Low | Satisfactory |
| Souhegan Site 8 Dam Hillsborough County | 25 | 1977 | High | Satisfactory |
| Souhegan Site 8 Cemetery Dike Hillsborough County | 16 | 1977 | Low | Satisfactory |
| Souhegan Site 14 Dam Hillsborough County | 28 | 1836 | High | Fair |
| Souhegan River Site 35 Dam Hillsborough County | 30 | 1965 | High | Fair |
| Souhegan River Site 33 Dam Hillsborough County | 21 | 1971 | High | Fair |
| Souhegan River Site 28 Dam Hillsborough County | 29 | 1964 | High | Satisfactory |
| Souhegan River Site 26 Dam Hillsborough County | 79 | 1965 | High | Fair |
| Souhegan River Site 25b Dam Hillsborough County | 74 | 1967 | High | Fair |
| Souhegan River Site 19 Dam Hillsborough County | 36 | 1962 | High | Fair |
| Souhegan River Site 15 Dam Hillsborough County | 13 | 1963 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.