Browse Dams
12,908 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 12,908 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 |
|---|---|---|---|---|---|---|---|
| Beaverton | Michigan | Gladwin | 20 | Significant | Satisfactory | 1919 | Hydroelectric |
| Bell Marsh Dike | Maine | York | 20 | High | Satisfactory | 1988 | Water Supply |
| Boulder Lake Dike Ee | Minnesota | St. Louis | 20 | Low | Satisfactory | 1919 | Hydroelectric |
| Packers Pond Dam | Connecticut | Windham | 20 | High | Satisfactory | 1880 | Recreation |
| Drews Lake Dam | Iowa | Dallas | 20 | Significant | Satisfactory | 2005 | Recreation |
| Beartrack Treatment Lagoon | Idaho | Lemhi | 20 | Low | Satisfactory | 1995 | Tailings |
| North Lansing Dam | Michigan | Ingham | 20 | Significant | Satisfactory | 1936 | Recreation |
| Green Oak Lake Dam | Michigan | Washtenaw | 20 | Low | Satisfactory | 1960 | Recreation |
| Mallard Lake No. 2 Dam | Mississippi | Hinds | 20 | Low | Satisfactory | 1997 | Recreation |
| Lake Susan Dam | North Carolina | Buncombe | 20 | High | Satisfactory | 1925 | Recreation |
| Orange-Alamance Lake Dam | North Carolina | Orange | 20 | Low | Satisfactory | 1968 | Other |
| Faraway Pond Dam | New Hampshire | Coos | 20 | Significant | Satisfactory | 1975 | Recreation |
| Hughes Meuret Lagoon Dam | Nebraska | Antelope | 20 | Low | Satisfactory | 1999 | Other |
| Premium Farms Rodgers (Love Farm) Lagoon Dam | Nebraska | Antelope | 20 | Low | Satisfactory | 1998 | Other |
| Cohoes Reservoir #3 Dam | New York | Albany | 20 | High | Satisfactory | 1885 | Water Supply |
| South Hill Pond Dam | New York | Tompkins | 20 | Significant | Satisfactory | - | Flood Risk Reduction |
| Lakemont Farms No 2 | Pennsylvania | Allegheny | 20 | Significant | Satisfactory | - | Recreation |
| Spooner Electric | Wisconsin | Washburn | 20 | Significant | Satisfactory | 1905 | Recreation |
| Mass. Bayboard - Stanchion | Massachusetts | Middlesex | 20 | Low | Satisfactory | 1848 | Hydroelectric |
| York Haven Headrace | Pennsylvania | Lancaster | 20 | Low | Satisfactory | 1904 | Hydroelectric |
| South Lanesville Dike | Connecticut | Litchfield | 20 | High | Satisfactory | 1929 | Hydroelectric |
| Millinocket Lake | Maine | Penobscot | 20 | High | Satisfactory | 1910 | Hydroelectric |
| Gorham | New Hampshire | Coos | 20 | Low | Satisfactory | 1958 | Hydroelectric |
| Tremont Waste Gates | Massachusetts | Middlesex | 20 | Low | Satisfactory | 1848 | Hydroelectric |
| Louisville No. 1 | Colorado | Boulder | 20 | Significant | Satisfactory | 1888 | Water Supply |
| South Norwalk Reservoir Dike | Connecticut | Fairfield | 20 | High | Satisfactory | 1899 | Water Supply |
| Walkers Lake Dam | Georgia | Carroll | 20 | High | Satisfactory | 1962 | Recreation |
| Mirror Lake Dam | Connecticut | New Haven | 20 | Significant | Satisfactory | 1949 | Recreation |
| Bamboo Ridge Lake | Iowa | Black Hawk | 20 | High | Satisfactory | 2012 | Recreation |
| Dd No 4a | Kansas | Marion | 20 | Low | Satisfactory | 1995 | Flood Risk Reduction |
| Strawberry Fields | Maryland | Howard | 20 | Significant | Satisfactory | 1985 | Flood Risk Reduction |
| Etb Waterway Dams | Michigan | Marquette | 20 | Low | Satisfactory | 1986 | Other |
| Itcaina Detention Dam | Montana | Valley | 20 | Low | Satisfactory | 1957 | Fire Protection, Stock, Or ... |
| Crystal Lake Dam | North Carolina | Durham | 20 | High | Satisfactory | 1947 | Recreation |
| Plum Creek 2-2 | Nebraska | Gage | 20 | Low | Satisfactory | 1968 | Other |
| Possum Creek Reserve Lake Dam | Ohio | Montgomery | 20 | Low | Satisfactory | 1979 | Recreation |
| Clinton County Tributary No. 4 Dam | Ohio | Clinton | 20 | High | Satisfactory | 1976 | Flood Risk Reduction |
| Upper Greenwood Lake Dam | New Jersey | Passaic | 20 | High | Satisfactory | 1932 | Recreation |
| Blacksville #1 Freshwater Imp | Pennsylvania | Greene | 20 | Significant | Satisfactory | 1974 | Recreation |
| Long Glade Lake | Texas | Rusk | 20 | High | Satisfactory | 1937 | Recreation |
| Howley Creek #6 Dam | Tennessee | Carroll | 20 | Low | Satisfactory | 1985 | |
| Amarillo Citadel Dam | Texas | Potter | 20 | Significant | Satisfactory | 1986 | Recreation |
| Upper Beaver Dam | Wisconsin | Dodge | 20 | High | Satisfactory | 1840 | Recreation |
| Mayfair Regional Storm Water Facility No 1 Dam | Texas | Comal | 20 | Significant | Satisfactory | 2024 | |
| North Pond Reservoir Dam | Connecticut | Litchfield | 20 | High | Satisfactory | 1840 | Water Supply |
| Lockhart East Canal Embankment | South Carolina | Union | 20 | High | Satisfactory | 1920 | Hydroelectric |
| Pawtucket Dam | Massachusetts | Middlesex | 20 | Low | Satisfactory | 1848 | Hydroelectric |
| Hatfields | New Hampshire | Strafford | 20 | Significant | Satisfactory | 1937 | Hydroelectric |
| Willamette Falls | Oregon | Clackamas | 20 | Significant | Satisfactory | 1923 | Hydroelectric |
| Moomaws | Virginia | Buena Vista | 20 | Low | Satisfactory | 1842 | Hydroelectric |
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.