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 26–50 of 169
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Catamount Pond Dam Merrimack County | 14 | 1938 | Low | Fair |
| Chadwick Meadows Wildlife Ref Dam Merrimack County | 47 | 1970 | Significant | Fair |
| Chandler Pond Dam Grafton County | 14 | 1939 | Significant | Fair |
| China Mill Dam Merrimack County | 29 | 1860 | High | Fair |
| Clark Pond East Dam Rockingham County | 8 | 1811 | Low | Fair |
| Colby Brook Dam Rockingham County | 11 | — | Low | Fair |
| Cold Spring Pond Dam Cheshire County | 9 | 1932 | Low | Fair |
| Compressor Pond Dam Hillsborough County | 28 | 1900 | Low | Fair |
| Contoocook River Dam Cheshire County | 15 | 1861 | Significant | Fair |
| Conway Lake Dam Carroll County | 17 | 1763 | Significant | Fair |
| Cranberry Meadow Pond Dam Hillsborough County | 8 | 1937 | Low | Fair |
| Crowcroft Pond Dam Cheshire County | 10 | 1939 | Low | Fair |
| Dead River Dam 1 Coos County | 47 | 1970 | High | Fair |
| Dead River Dike Coos County | 14 | 1970 | Low | Fair |
| Deep Hole Pond Dam Rockingham County | 15 | 1974 | Low | Fair |
| Deer Meadow Pond Dam Merrimack County | 15 | 1938 | Low | Fair |
| Deer Pond Dam Rockingham County | 12 | 1963 | Low | Fair |
| Dole Reservoir Dam Sullivan County | 43 | 1913 | High | Fair |
| Dole Reservoir Dike Sullivan County | 11 | 1913 | Significant | Fair |
| Dorr Woolen Sewage Lagoon Dam Sullivan County | 20 | 1982 | Significant | Fair |
| Downing Pond Dam Strafford County | 15 | 1921 | Low | Fair |
| Dunklee Pond Dam Hillsborough County | 9 | 1986 | Low | Fair |
| Emery Road Dam Merrimack County | 10 | 1910 | Low | Fair |
| Epping Wastewater Lagoons Dam Rockingham County | 9 | 1970 | Significant | Fair |
| Farmington Levee Strafford County | 15 | 1956 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.