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 276–300 of 300
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Berry Brook Reservoir Dam Strafford County | 28 | 1930 | Low | Fair |
| Bellows Falls Cheshire County | 48 | 1907 | Low | Satisfactory |
| Belanger Recreation Pond Dam Merrimack County | 8 | 1992 | Low | Satisfactory |
| Beaver Pond Grafton County | 14 | 1927 | Low | Not Rated |
| Beaver Brook Dam Rockingham County | 7 | 1929 | Low | Satisfactory |
| Beaver Brook Assoc Wldlife Pond Dam Hillsborough County | 12 | 1968 | Low | Fair |
| Bear Pond Dam Merrimack County | 8 | 1932 | Low | Satisfactory |
| Bear Hill Pond Dam Merrimack County | 7 | 1885 | Low | Fair |
| Baxter Lake East Dike Strafford County | 10 | 1923 | Low | Fair |
| Baxter Lake Center Dike Strafford County | 10 | 1923 | Low | Fair |
| Bancroft Reservoir Dam Cheshire County | 15 | 1935 | Low | Poor |
| Baltic Mills Dam Grafton County | 21 | 1919 | Low | Not Rated |
| Ballard Pond Upper Dam Rockingham County | 7 | 1935 | Low | Poor |
| Baker River Site 5 Dike Grafton County | 20 | 1969 | Low | Satisfactory |
| Back Lake Dam Coos County | 7 | 1930 | Low | Poor |
| Ayers Pond Dam Hillsborough County | 16 | 1865 | Low | Fair |
| Avery Belknap County | 13 | 1947 | Low | Satisfactory |
| Ashuelot River Dam Cheshire County | 16 | 1919 | Low | Not Rated |
| Ashuelot Paper Mill Dam Cheshire County | 18 | 1910 | Low | Not Rated |
| Arlington Mills Res West Dike Rockingham County | 10 | 1922 | Low | Satisfactory |
| Ammonoosuc River Grafton County | 17 | 1900 | Low | Satisfactory |
| Allied Leather Forebay Merrimack County | 15 | 1982 | Low | Satisfactory |
| Akers Pond Dam Coos County | 12 | 1930 | Low | Satisfactory |
| Airport Marsh Dam Coos County | 11 | 1956 | Low | Poor |
| Adams Pond Dam Belknap County | 10 | 1962 | Low | Fair |
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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.