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 1–25 of 300
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| York Pond Dam Coos County | 12 | 1930 | Low | Not Rated |
| York Merrimack County | 10 | 1967 | Low | Satisfactory |
| Wong Wildlife Pond Dam Belknap County | 19 | 1976 | Low | Poor |
| Winnipocket Lake Dam Merrimack County | 7 | 1944 | Low | Poor |
| Willow Pond Dam Sullivan County | 10 | 1982 | Low | Satisfactory |
| Willard Pond Dam Hillsborough County | 8 | 1937 | Low | Fair |
| Wildsong Farm Pond Dike Belknap County | 18 | 1969 | Low | Fair |
| Wildsong Farm Pond Dam 1 Belknap County | 16 | 1969 | Low | Fair |
| Wildlife Pond Dam Belknap County | 9 | 1973 | Low | Poor |
| Wildlife Pond Dam Sullivan County | 12 | 1972 | Low | Satisfactory |
| Whittemore Lake Dam Hillsborough County | 11 | 1886 | Low | Poor |
| White Oak Pond Dam Grafton County | 8 | 1920 | Low | Fair |
| Weston Coos County | 20 | 1987 | Low | Satisfactory |
| Waumbek Dam Strafford County | 17 | 1880 | Low | Satisfactory |
| Watson Strafford County | 12 | 1900 | Low | Satisfactory |
| Waterloom Falls Hillsborough County | 18 | 1980 | Low | Satisfactory |
| Wason Pond Dam Rockingham County | 18 | 1931 | Low | Satisfactory |
| Washburn Corners Dam Sullivan County | 14 | 1950 | Low | Satisfactory |
| Village Pond Dam Cheshire County | 12 | 1915 | Low | Satisfactory |
| Vernon Cheshire County | 58 | 1909 | Low | Satisfactory |
| Van Dyke Dam Cheshire County | 8 | 1982 | Low | Fair |
| Upper Recreation Pond Dam Belknap County | 14 | 1970 | Low | Fair |
| Upper Peverly Pond Dam Rockingham County | 11 | 1935 | Low | Fair |
| Upper Mountain Lake Dam Grafton County | 31 | 1963 | Low | Fair |
| Turtle Pond Dam Merrimack County | 8 | 1932 | Low | Poor |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.