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 |
|---|---|---|---|---|---|---|---|
| Larrys Pond Dam | New Hampshire | Cheshire | 19 | Low | Not Rated | 1970 | Recreation |
| Brooklyn | New Hampshire | Coos | 19 | Significant | Unsatisfactory | 1919 | Hydroelectric |
| Highland Lake Dam | New Hampshire | Cheshire | 19 | High | Poor | 1824 | Recreation |
| Mwh Sewage Lagoons Dam | New Hampshire | Coos | 19 | Significant | Fair | 2000 | Other |
| Taylor River Pond Dam | New Hampshire | Rockingham | 19 | High | Satisfactory | 1949 | Fish and Wildlife Pond |
| Canaan | New Hampshire | Coos | 19 | Low | Satisfactory | 1927 | Hydroelectric |
| Cobble Mountain Dam | New Hampshire | Belknap | 19 | Low | Satisfactory | 1986 | Recreation |
| Waterville Valley Lagoons Dam | New Hampshire | Grafton | 19 | Significant | Satisfactory | 1972 | Other |
| Spaulding Pond Dam | New Hampshire | Strafford | 19 | Low | Satisfactory | 1899 | Hydroelectric |
| Sugar River I | New Hampshire | Sullivan | 18 | Significant | Satisfactory | 1928 | Hydroelectric |
| Robinhood Park Reservoir Dam | New Hampshire | Cheshire | 18 | High | Satisfactory | 1872 | Recreation |
| Little Bog Pond Dam | New Hampshire | Coos | 18 | Low | Not Rated | 1930 | Recreation |
| Wildsong Farm Pond Dike | New Hampshire | Belknap | 18 | Low | Fair | 1969 | Recreation |
| Garvins Falls | New Hampshire | Merrimack | 18 | Low | Satisfactory | 1901 | Hydroelectric |
| Mountain Brook Reservoir Dam | New Hampshire | Cheshire | 18 | Significant | Fair | 1951 | Recreation |
| Pittsfield Sewage Lagoon Dam | New Hampshire | Merrimack | 18 | Significant | Satisfactory | 1979 | Other |
| Berry Pond Dam | New Hampshire | Merrimack | 18 | High | Satisfactory | 1884 | Water Supply |
| Wason Pond Dam | New Hampshire | Rockingham | 18 | Low | Satisfactory | 1931 | Recreation |
| Ashuelot Paper Mill Dam | New Hampshire | Cheshire | 18 | Low | Not Rated | 1910 | Hydroelectric |
| Waterloom Falls | New Hampshire | Hillsborough | 18 | Low | Satisfactory | 1980 | Hydroelectric |
| Lower Robertson | New Hampshire | Cheshire | 18 | Low | Satisfactory | 1905 | Hydroelectric |
| Cheshire Mills Lower Dam | New Hampshire | Cheshire | 18 | High | Poor | 1848 | Hydroelectric |
| Mud Pond Dam | New Hampshire | Cheshire | 18 | Low | Fair | 1899 | Recreation |
| Dodge Falls | New Hampshire | Grafton | 18 | Low | Satisfactory | 1905 | Hydroelectric |
| Pawtuckaway Lake /Drowns Dam | New Hampshire | Rockingham | 18 | Significant | Poor | 1842 | Recreation |
| Lower Lisbon | New Hampshire | Grafton | 18 | Low | Satisfactory | 1986 | Hydroelectric |
| Ayers Pond Dam | New Hampshire | Strafford | 18 | Significant | Fair | 1810 | Recreation |
| Eastman Treatment Lagoons Dam | New Hampshire | Sullivan | 18 | Significant | Not Rated | - | Flood Risk Reduction |
| Mcgary Fletcher Rec Pond Dam | New Hampshire | Sullivan | 18 | Significant | Satisfactory | 1978 | Recreation |
| South Berwick | New Hampshire | Strafford | 18 | Low | Satisfactory | 1923 | Hydroelectric |
| Blackwater Dam - Dodge Estate Dike | New Hampshire | Merrimack | 18 | High | Not Available | 1941 | Flood Risk Reduction |
| Fullam Pond Dam | New Hampshire | Cheshire | 18 | Low | Not Rated | - | Recreation |
| Giles Pond | New Hampshire | Merrimack | 18 | Low | Satisfactory | 1904 | Hydroelectric |
| Godfrey Dam | New Hampshire | Coos | 18 | Significant | Satisfactory | 1920 | Water Supply |
| Bog Brook Pond Dam | New Hampshire | Sullivan | 18 | Low | Satisfactory | 1957 | Recreation |
| Crystal Lake Dam | New Hampshire | Belknap | 18 | High | Poor | 1881 | Recreation |
| Icy Gulch Reservoir Dam | New Hampshire | Coos | 18 | Significant | Satisfactory | 1940 | Water Supply |
| Hopkinton Sewage Lagoon Dam | New Hampshire | Merrimack | 18 | Significant | Satisfactory | 1983 | Other |
| Lower Wilson Pond Dam | New Hampshire | Cheshire | 18 | Significant | Satisfactory | 1925 | Recreation |
| Island Pond Dam | New Hampshire | Cheshire | 17 | Low | Poor | 1920 | Recreation |
| Ammonoosuc River | New Hampshire | Grafton | 17 | Low | Satisfactory | 1900 | Hydroelectric |
| Shelburne | New Hampshire | Coos | 17 | Low | Satisfactory | 1906 | Hydroelectric |
| Bog Pond Dam | New Hampshire | Merrimack | 17 | Significant | Satisfactory | 1870 | Recreation |
| Swains Lake Dam | New Hampshire | Strafford | 17 | High | Satisfactory | 1890 | Recreation |
| Melvin River Dam | New Hampshire | Carroll | 17 | Significant | Poor | 1930 | Recreation |
| Childs Bog Dam | New Hampshire | Cheshire | 17 | High | Satisfactory | 1924 | Recreation |
| Rollins Pond Dam | New Hampshire | Belknap | 17 | Low | Poor | 1800 | Recreation |
| Waumbek Dam | New Hampshire | Strafford | 17 | Low | Satisfactory | 1880 | Recreation |
| Mill Pond Road Dam | New Hampshire | Cheshire | 17 | Undetermined | Not Rated | 1979 | Recreation |
| Conway Lake Dam | New Hampshire | Carroll | 17 | Significant | Fair | 1763 | 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.