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 |
|---|---|---|---|---|---|---|---|
| Upper Big Nemaha J-34 | Nebraska | Johnson | 30 | Low | Satisfactory | 1969 | Other |
| Florida 9 | Minnesota | Yellow Medicine | 30 | Significant | Satisfactory | 2006 | Flood Risk Reduction |
| Blixit Creek | Montana | Missoula | 30 | High | Satisfactory | 1961 | Irrigation |
| Frontier County Finishers Lagoon Dam | Nebraska | Frontier | 30 | Low | Satisfactory | 1993 | Other |
| Mansfield Club Dam | Michigan | Ogemaw | 30 | Low | Satisfactory | 1965 | Recreation |
| Washington Lake Dam | New York | Orange | 30 | Significant | Satisfactory | 1909 | Water Supply |
| Redman Livestock Lagoon Dam | Nebraska | Custer | 30 | Low | Satisfactory | 2013 | Other |
| Bill Coffee Dam 1 | Nebraska | Sioux | 30 | Low | Satisfactory | 1959 | Fire Protection, Stock, Or ... |
| Reservoir No. 4 Dam | Massachusetts | Worcester | 30 | Significant | Satisfactory | 1965 | Water Supply |
| Hunter | Oklahoma | Kiowa | 30 | High | Satisfactory | 1928 | Water Supply |
| Osceola Lake Dam | North Carolina | Henderson | 30 | High | Satisfactory | 1920 | Recreation |
| Emerald Lake Dam | Texas | Dallas | 30 | High | Satisfactory | 1997 | |
| Green Castle Dam | Iowa | Marshall | 30 | Significant | Satisfactory | 1954 | Recreation |
| Doty Dam | Iowa | Dallas | 30 | Significant | Satisfactory | 1961 | Fire Protection, Stock, Or ... |
| Wilson Creek 5-J | Nebraska | Otoe | 30 | Low | Satisfactory | 1973 | Flood Risk Reduction |
| Spring Creek 9-A 301 | Nebraska | Dawson | 30 | Low | Satisfactory | 1970 | Flood Risk Reduction |
| Oak-Middle 66-A | Nebraska | Butler | 30 | Low | Satisfactory | 1983 | Flood Risk Reduction |
| Clearwell Phase 2 | California | Contra Costa | 30 | Low | Satisfactory | 1977 | Water Supply |
| Cub Creek G-7 | Nebraska | Jefferson | 30 | Low | Satisfactory | 1979 | Other |
| I-94 Rest Area | Minnesota | Washington | 30 | Low | Satisfactory | 1985 | Flood Risk Reduction |
| Sidney East Dam | Nebraska | Cheyenne | 30 | High | Satisfactory | 1958 | Flood Risk Reduction |
| Silver Creek 6 | Nebraska | Burt | 30 | Low | Satisfactory | 2006 | Flood Risk Reduction |
| Silver Creek 30 | Nebraska | Burt | 30 | Low | Satisfactory | 2006 | Flood Risk Reduction |
| Bar X Ranch Reservoir #2 | California | Lake | 30 | High | Satisfactory | 2003 | Other |
| Loveland Lake | Colorado | Larimer | 30 | Significant | Satisfactory | 1905 | Irrigation |
| Old Marsh Pond Dam | Connecticut | Litchfield | 30 | High | Satisfactory | 1913 | Water Supply |
| Milton South | California | Nevada | 30 | Low | Satisfactory | 1927 | Water Supply |
| Anderson Lake Dam | Mississippi | Yazoo | 30 | High | Satisfactory | - | Recreation |
| Silver Lake | Minnesota | Olmsted | 30 | Significant | Satisfactory | 1935 | Recreation |
| Upper Kohanza Lake Dam | Connecticut | Fairfield | 30 | High | Satisfactory | 1866 | Water Supply |
| Rand Knotts Dam No. 2 | Louisiana | Jackson | 30 | Low | Satisfactory | - | Recreation |
| Mallard | California | Contra Costa | 30 | High | Satisfactory | 1930 | Water Supply |
| City Park (Pine Creek #1) Dam | Tennessee | Scott | 30 | High | Satisfactory | 1970 | |
| Gering Valley G Lower | Nebraska | Scotts Bluff | 30 | Significant | Satisfactory | 1972 | Flood Risk Reduction |
| Simpson Legion Lake Dam | Mississippi | Simpson | 30 | High | Satisfactory | 1950 | Recreation |
| Staffordville Reservoir Dam | Connecticut | Tolland | 30 | High | Satisfactory | 1850 | Recreation |
| Leslie Helickson Detention | Minnesota | Fillmore | 30 | Low | Satisfactory | 1983 | Flood Risk Reduction |
| Bellwood 6-E | Nebraska | Butler | 30 | Low | Satisfactory | 1969 | Flood Risk Reduction |
| Almond | California | Alameda | 30 | High | Satisfactory | 1954 | Water Supply |
| Logan First Dam | Utah | Cache | 30 | High | Satisfactory | 1914 | Hydroelectric |
| Eberspecher Dam 1 | Nebraska | Sioux | 30 | Low | Satisfactory | 1959 | Fire Protection, Stock, Or ... |
| Bellwood 5-J | Nebraska | Butler | 30 | Low | Satisfactory | 1966 | Flood Risk Reduction |
| Prairie Queen North Dam | Nebraska | Sarpy | 30 | Low | Satisfactory | 2014 | Flood Risk Reduction |
| Cedar Ave. Detention Pond | Oklahoma | Woodward | 30 | High | Satisfactory | - | Flood Risk Reduction |
| Buena Vista Lakes Dam | Mississippi | DeSoto | 30 | Low | Satisfactory | - | Recreation |
| Lovingood | Pennsylvania | Greene | 30 | Low | Satisfactory | - | Recreation |
| Henley's Dam | Arkansas | White | 30 | Low | Satisfactory | 1979 | Recreation |
| Genesee County Impoundment | Michigan | Lapeer | 30 | Low | Satisfactory | 2016 | Water Supply |
| Nplf Lagoon 1-G Dam | Nebraska | Lincoln | 30 | Low | Satisfactory | 2008 | Other |
| Lindenwood Lake Dam | Ohio | Medina | 30 | Significant | Satisfactory | 1958 | 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.