Browse Dams
7,732 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 7,732 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 |
|---|---|---|---|---|---|---|---|
| Nielsen Dam C | Washington | Snohomish | 9 | High | Poor | 1973 | Recreation |
| Nielsen Dam B | Washington | Snohomish | 9 | High | Poor | 1973 | Recreation |
| Frances Coker Dam | South Carolina | Clarendon | 9 | Low | Poor | 1850 | Recreation |
| Canoe Brook Dam | New Jersey | Essex | 9 | Low | Poor | 1880 | Water Supply |
| Lake Calhoun Outlet | Minnesota | Kandiyohi | 9 | Low | Poor | 1937 | Recreation |
| Longbranch LLC Fish Pond Dam | South Carolina | Richland | 9 | High | Poor | — | Recreation |
| Sheffield Farms Pond Dam | New York | Schoharie | 9 | Significant | Poor | 1919 | Fire Protection, Stock, Or ... |
| Beaver Lake | Pennsylvania | Lycoming | 9 | High | Poor | 1919 | Recreation |
| New Brooklyn Dam | New Jersey | Camden | 9 | Significant | Poor | 1936 | Recreation |
| Morse Pond Dam | Massachusetts | Worcester | 9 | Low | Poor | — | Recreation |
| Nummytown Mill Pond Dam | New Jersey | Cape May | 9 | Significant | Poor | — | Recreation |
| Big Island Wetland Dam | Ohio | Marion | 9 | Significant | Poor | 1995 | Recreation |
| Bon Ami Pond | Louisiana | Beauregard | 9 | Low | Poor | 1900 | Water Supply |
| Ramsdall Pond Dam | Massachusetts | Worcester | 9 | Significant | Poor | — | |
| Upper Flint Pond Dam | Massachusetts | Middlesex | 9 | Significant | Poor | — | Recreation |
| Mill Pond Dam | Massachusetts | Barnstable | 9 | Significant | Poor | 1930 | Recreation |
| Baltic Reservoir Dam (East) | Connecticut | New London | 9 | Significant | Poor | — | Water Supply |
| Anderson Lake | Minnesota | Douglas | 9 | Low | Poor | 1973 | Other |
| Hickory Lake Dam | New York | Erie | 9 | Significant | Poor | 1990 | Recreation |
| Ashepoo Plantation Pond Dam | South Carolina | Colleton | 9 | Low | Poor | 1973 | Recreation |
| Cramer-Reichman Dam | New York | Sullivan | 9 | Significant | Poor | 1930 | Recreation |
| Spruce Run Flow Measuring Weir Dam | New Jersey | Hunterdon | 9 | Low | Poor | 1960 | Other |
| Barnwell State Park Upper Dam | South Carolina | Barnwell | 9 | High | Poor | — | Recreation |
| Mcleods Upper Pond Dam | South Carolina | Lee | 9 | Low | Poor | 1970 | Recreation |
| Pawtuckaway Lake/Gove Dike | New Hampshire | Rockingham | 9 | Significant | Poor | 1842 | Recreation |
| Yokum Pond Dam | Massachusetts | Berkshire | 9 | Significant | Poor | — | Recreation |
| Sagebrush Creek Dam | Nevada | Humboldt | 9 | Low | Poor | — | Fish and Wildlife Pond |
| Wakefield Pond Dam | South Carolina | Abbeville | 9 | Low | Poor | 1948 | Recreation |
| Holmes Mill Dam | New York | Dutchess | 9 | Significant | Poor | — | Irrigation |
| Squires Lake Dam | South Carolina | Dillon | 9 | Undetermined | Poor | 1963 | Recreation |
| Sotak Flowage | Wisconsin | Taylor | 9 | Low | Poor | 1965 | Other |
| Old Pond Dam | Massachusetts | Bristol | 9 | Significant | Poor | 1751 | Recreation |
| Wildlife Lake No1 | South Carolina | Hampton | 9 | Low | Poor | 1958 | Recreation |
| Hillside Lake Dam | New York | Dutchess | 9 | Significant | Poor | 1934 | Recreation |
| Spring Lake | Rhode Island | Providence | 9 | Significant | Poor | 1885 | Recreation |
| Ocean Lake Habitat No. 5 | Wyoming | Fremont | 9 | Low | Poor | 1973 | Fish and Wildlife Pond |
| Ocean Lake Habitat No. 6 | Wyoming | Fremont | 9 | Low | Poor | 1973 | Fish and Wildlife Pond |
| Wakefield Pond | Rhode Island | Washington | 9 | High | Poor | — | Other |
| Alitak Cannery Dam #1 | Alaska | Kodiak Island Borough | 9 | High | Poor | 1917 | Water Supply |
| South Yates Pond Dam | Louisiana | Washington | 9 | Low | Poor | 1940 | Recreation |
| Lake Albert Dam | New Jersey | Atlantic | 9 | Low | Poor | 1959 | Recreation |
| Mcmillen Upper Pond Dam | South Carolina | Marion | 9 | Low | Poor | 1964 | Recreation |
| Seney E-1 Pool Dam | Michigan | Schoolcraft | 9 | Low | Poor | 1937 | Fish and Wildlife Pond |
| Medicine Lake Dam No. 11 | Montana | Sheridan | 9 | Low | Poor | 1935 | Fish and Wildlife Pond |
| Onway Lake Dam | New Hampshire | Rockingham | 9 | Low | Poor | 1915 | Recreation |
| Mirror Lake Dam | South Carolina | Richland | 9 | High | Poor | 1940 | Recreation |
| Camp Jackson Dam | South Carolina | Allendale | 9 | Low | Poor | 1955 | Recreation |
| Wannamaker Pond 1 Dam | South Carolina | Orangeburg | 9 | Low | Poor | 1970 | Recreation |
| West Albany Storm Retention Basin B Dam | New York | Albany | 9 | Significant | Poor | — | Flood Risk Reduction |
| Hoit Road Marsh Dam | New Hampshire | Merrimack | 9 | Low | Poor | 1968 | 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.