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 151–175 of 300
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Locke Lake Dam Belknap County | 12 | 1965 | Low | Fair |
| Locke 2 Dam Grafton County | 60 | 1969 | Low | Satisfactory |
| Locke 1 Dam Grafton County | 27 | 1970 | Low | Poor |
| Lochmere Belknap County | 11 | 1910 | Low | Satisfactory |
| Loch Lyndon Reservoir Dam Merrimack County | 12 | 1901 | Low | Not Rated |
| Little Cub Pond Dam Rockingham County | 11 | 1934 | Low | Poor |
| Little Cohas Brook Dam Rockingham County | 10 | 1953 | Low | Satisfactory |
| Little Bog Pond Dam Coos County | 18 | 1930 | Low | Not Rated |
| Lime Pond Dam Coos County | 10 | 1934 | Low | Satisfactory |
| Lcs Settling Ponds 4 and 5 Dam Grafton County | 15 | 1980 | Low | Not Rated |
| Larrys Pond Dam Cheshire County | 19 | 1970 | Low | Not Rated |
| Lake Wicwas Dam Belknap County | 7 | 1937 | Low | Poor |
| Lake Twotowns Dam Coos County | 25 | 1936 | Low | Satisfactory |
| Lake Tarleton Dam Grafton County | 8 | 1800 | Low | Satisfactory |
| Knowles Pond Dam Merrimack County | 11 | 1935 | Low | Satisfactory |
| Knight Meadow Pond Dam Merrimack County | 9 | 1966 | Low | Fair |
| Kingswood Lake Dam Carroll County | 10 | 1900 | Low | Not Rated |
| Kimball Pond Dam Merrimack County | 8 | 1850 | Low | Satisfactory |
| Kimball Lake Dam Merrimack County | 7 | 1930 | Low | Poor |
| Kilton Pond Dam Grafton County | 12 | 1930 | Low | Fair |
| Kilburn Pond Dam Cheshire County | 15 | 1935 | Low | Satisfactory |
| Kendall Pond Dam Rockingham County | 12 | 1930 | Low | Fair |
| Israel River Dam Coos County | 22 | 1981 | Low | Unsatisfactory |
| Island Pond Dam Cheshire County | 17 | 1920 | Low | Poor |
| Island Pond Dam Sullivan County | 13 | 1861 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.