Browse Dams
665 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 665 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Ammonoosuc River | New Hampshire | Grafton | 17 | Low | Satisfactory | 1900 | Hydroelectric |
| Corcoran Pond Dam | New Hampshire | Grafton | 17 | High | Satisfactory | 1976 | Recreation |
| Briar Pipe | New Hampshire | Merrimack | 17 | Low | Satisfactory | 1936 | Hydroelectric |
| Bog Pond Dam | New Hampshire | Merrimack | 17 | Significant | Satisfactory | 1870 | Recreation |
| Chase Pond Dam | New Hampshire | Merrimack | 17 | Significant | Satisfactory | 1915 | Recreation |
| Island Pond Dam | New Hampshire | Cheshire | 17 | Low | Poor | 1920 | Recreation |
| Durham Reservoir Dam | New Hampshire | Strafford | 17 | High | Satisfactory | 1930 | Recreation |
| Childs Bog Dam | New Hampshire | Cheshire | 17 | High | Satisfactory | 1924 | Recreation |
| Conway Lake Dam | New Hampshire | Carroll | 17 | Significant | Fair | 1763 | Recreation |
| Salmon Brook I Dam | New Hampshire | Hillsborough | 17 | Low | Not Rated | 1887 | Recreation |
| Rollins Pond Dam | New Hampshire | Belknap | 17 | Low | Poor | 1800 | Recreation |
| Todd Lake Dam | New Hampshire | Merrimack | 17 | Significant | Poor | 1858 | Recreation |
| Sargent Lake Dam | New Hampshire | Belknap | 17 | High | Poor | 1870 | Recreation |
| Pioneer Lake Dam | New Hampshire | Cheshire | 17 | Low | Not Rated | 1971 | Recreation |
| Glen Road | New Hampshire | Grafton | 17 | Significant | Satisfactory | 1988 | Hydroelectric |
| Swains Lake Dam | New Hampshire | Strafford | 17 | High | Satisfactory | 1890 | Recreation |
| Waumbek Dam | New Hampshire | Strafford | 17 | Low | Satisfactory | 1880 | Recreation |
| Mill Pond Road Dam | New Hampshire | Cheshire | 17 | Undetermined | Not Rated | 1979 | Recreation |
| Belleau Lake Dam | New Hampshire | Carroll | 16 | Significant | Poor | 1962 | Recreation |
| Sanborn Pond Grist Mill Dam | New Hampshire | Merrimack | 16 | High | Fair | 1830 | Other |
| Hidden Pond Dam | New Hampshire | Cheshire | 16 | Low | Fair | 1966 | Recreation |
| Stone Pond Dam | New Hampshire | Cheshire | 16 | Low | Poor | 1922 | Recreation |
| Mine Falls | New Hampshire | Hillsborough | 16 | Low | Satisfactory | 1889 | Hydroelectric |
| Wildsong Farm Pond Dam 1 | New Hampshire | Belknap | 16 | Low | Fair | 1969 | Fish and Wildlife Pond |
| Harrisville Pond Dam | New Hampshire | Cheshire | 16 | High | Fair | 1886 | Recreation |
| Mill Pond Dam | New Hampshire | Cheshire | 16 | Significant | Fair | 1937 | Recreation |
| Thornwood Commons Pond Dam | New Hampshire | Strafford | 16 | Significant | Satisfactory | 1961 | Fish and Wildlife Pond |
| Troy Sewage Lagoons Dam | New Hampshire | Cheshire | 16 | Significant | Satisfactory | 1983 | Other |
| Barnstead Parade Dam | New Hampshire | Belknap | 16 | High | Poor | 1830 | Recreation |
| Stratford Bog Pond Dam | New Hampshire | Coos | 16 | High | Poor | 1934 | Recreation |
| Nubanusit Lake Dam | New Hampshire | Cheshire | 16 | Significant | Poor | 1861 | Recreation |
| Copps Pond Dam | New Hampshire | Carroll | 16 | High | Satisfactory | 1940 | Recreation |
| Stump Pond Dam | New Hampshire | Hillsborough | 16 | Low | Fair | 1938 | Recreation |
| Ashuelot River Dam | New Hampshire | Cheshire | 16 | Low | Not Rated | 1919 | Recreation |
| Chesham Pond Dam | New Hampshire | Cheshire | 16 | High | Satisfactory | 1921 | Recreation |
| Crystal Lake Dam | New Hampshire | Belknap | 16 | High | Poor | 1958 | Recreation |
| Gonic Dam | New Hampshire | Strafford | 16 | Significant | Fair | 1935 | Recreation |
| Woodbury Estate Pond Dam | New Hampshire | Hillsborough | 16 | Significant | Satisfactory | 1935 | Recreation |
| Alton Power Dam | New Hampshire | Belknap | 16 | High | Poor | 1923 | Recreation |
| Foote Pond Dam | New Hampshire | Belknap | 16 | Low | Poor | 1971 | Recreation |
| Lower Ipc Dam | New Hampshire | Grafton | 16 | Significant | Fair | 1930 | Recreation |
| Lebanon Water Treatment Intake Dam | New Hampshire | Grafton | 16 | Significant | Satisfactory | 1934 | Water Supply |
| Souhegan Site 8 Cemetery Dike | New Hampshire | Hillsborough | 16 | Low | Satisfactory | 1977 | Flood Risk Reduction |
| Ayers Pond Dam | New Hampshire | Hillsborough | 16 | Low | Fair | 1865 | Recreation |
| Suncook Lake Dam | New Hampshire | Belknap | 16 | High | Poor | 1882 | Recreation |
| Goldfish Pond Dam | New Hampshire | Merrimack | 16 | Low | Fair | 1974 | Recreation |
| Beards Creek Dam | New Hampshire | Strafford | 16 | Significant | Satisfactory | 1953 | Recreation |
| Wildlife Pond Dam | New Hampshire | Sullivan | 16 | Undetermined | Not Rated | 1955 | Fish and Wildlife Pond |
| Grist Mill Pond Dam | New Hampshire | Grafton | 16 | High | Poor | 1924 | Hydroelectric |
| Exeter River Dam | New Hampshire | Rockingham | 15 | Significant | Poor | 1927 | Recreation |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.