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 626–650 of 664
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Wason Pond Dam Rockingham County | 18 | 1931 | Low | Satisfactory |
| Waterloom Falls Hillsborough County | 18 | 1980 | Low | Satisfactory |
| Waterville Valley Lagoons Dam Grafton County | 19 | 1972 | Significant | Satisfactory |
| Watson Strafford County | 12 | 1900 | Low | Satisfactory |
| Waumbek Dam Strafford County | 17 | 1880 | Low | Satisfactory |
| Weare Reservoir Dam Hillsborough County | 34 | 1913 | High | Poor |
| Webster Merrimack County | 22 | 1917 | Significant | Satisfactory |
| Webster Lake Dam Merrimack County | 14 | 1873 | High | Satisfactory |
| Webster Valve CO Dam Merrimack County | 15 | 1901 | Significant | Poor |
| Weeks Crossing Pond Dam Grafton County | 14 | — | Significant | Satisfactory |
| Wendall Marsh Dam Sullivan County | 15 | — | Significant | Fair |
| Weston Coos County | 20 | 1987 | Low | Satisfactory |
| Whitefield Lagoon Dam Coos County | 32 | 1984 | Significant | Satisfactory |
| White Oak Pond Dam Grafton County | 8 | 1920 | Low | Fair |
| Whites Pond Dam and Dike Merrimack County | 15 | 1890 | High | Satisfactory |
| Whitewater Brook Dam Sullivan County | 95 | 1968 | High | Fair |
| Whittemore Lake Dam Hillsborough County | 11 | 1886 | Low | Poor |
| Wilder Grafton County | 59 | 1950 | High | Satisfactory |
| Wildlife Pond Dam Sullivan County | 12 | 1972 | Low | Satisfactory |
| Wildlife Pond Dam Hillsborough County | 10 | — | Undetermined | Not Rated |
| Wildlife Pond Dam Sullivan County | 16 | 1955 | Undetermined | Not Rated |
| Wildlife Pond Dam Belknap County | 9 | 1973 | Low | Poor |
| Wildsong Farm Pond Dam 1 Belknap County | 16 | 1969 | Low | Fair |
| Wildsong Farm Pond Dike Belknap County | 18 | 1969 | Low | Fair |
| Willard Pond Dam Hillsborough County | 8 | 1937 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.