Browse Dams
17,049 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 17,049 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 |
|---|---|---|---|---|---|---|---|
| Raccoon Mountain Dam | Tennessee | Marion | 230 | High | Not Available | 1978 | Hydroelectric |
| Peters | California | Marin | 230 | High | Satisfactory | 1954 | Water Supply |
| El Vado Dam | New Mexico | Rio Arriba | 230 | High | Not Available | 1935 | Irrigation |
| Trampas Canyon | California | Orange | 229 | High | Satisfactory | 1975 | Other |
| Beaver Dam - Saddle Dike 3 | Arkansas | Carroll | 229 | High | Not Available | 1963 | Flood Risk Reduction |
| Pacificorp - Electric Lake | Utah | Emery | 229 | High | Satisfactory | 1974 | Water Supply |
| Rollins Dam | California | Nevada | 228 | High | Satisfactory | 1965 | Water Supply |
| Sanford Dam | Texas | Hutchinson | 228 | High | Not Available | 1965 | Recreation |
| Ramona | California | San Diego | 228 | High | Satisfactory | 1988 | Water Supply |
| Pit No. 7 Diversion | California | Shasta | 228 | High | Satisfactory | 1965 | Hydroelectric |
| Lower Granite Lock and Dam | Washington | Whitman | 228 | High | Not Available | 1975 | Navigation |
| Beaver Dam | Arkansas | Carroll | 228 | High | Not Available | 1963 | Flood Risk Reduction |
| Little Goose Lock and Dam | Washington | Columbia | 226 | High | Not Available | 1970 | Navigation |
| 4 West | Arizona | Graham | 226 | High | Not Available | - | Tailings |
| Lower Monumental Lock and Dam | Washington | Franklin | 226 | High | Not Available | 1969 | Navigation |
| Raystown Dam | Pennsylvania | Huntingdon | 225 | High | Not Available | 1973 | Flood Risk Reduction |
| Indian Valley | California | Lake | 225 | High | Fair | 1975 | Irrigation |
| New Lake Arrowhead | California | San Bernardino | 225 | High | Satisfactory | 1976 | Water Supply |
| Canyon Ferry Dam | Montana | Lewis and Clark | 225 | High | Not Available | 1954 | Flood Risk Reduction |
| Broken Bow Dam | Oklahoma | McCurtain | 225 | High | Not Available | 1968 | Flood Risk Reduction |
| Long Lake | Washington | Stevens | 225 | High | Fair | 1915 | Hydroelectric |
| Big Santa Anita | California | Los Angeles | 225 | High | Satisfactory | 1927 | Flood Risk Reduction |
| Horsetooth-Spring Canyon | Colorado | Larimer | 225 | High | Not Available | 1949 | Irrigation |
| Little Dell | Utah | Salt Lake | 224 | High | Satisfactory | 1993 | Water Supply |
| Canyon Lake Dam - Dike A | Texas | Comal | 224 | High | Not Available | 1964 | Flood Risk Reduction |
| Canyon Lake Dam | Texas | Comal | 224 | High | Not Available | 1964 | Flood Risk Reduction |
| Mormon Flat Dam | Arizona | Maricopa | 224 | High | Not Available | 1926 | Hydroelectric |
| San Joaquin Reservoir | California | Orange | 224 | High | Satisfactory | 1966 | Water Supply |
| Salmon Falls | Idaho | Twin Falls | 224 | High | Fair | 1911 | Other |
| John Amos Flyash Dam | West Virginia | Putnam | 223 | High | Satisfactory | 1978 | Tailings |
| Colebrook River Dam | Connecticut | Litchfield | 223 | High | Not Available | 1969 | Flood Risk Reduction |
| Del Valle | California | Alameda | 222 | High | Fair | 1968 | Flood Risk Reduction |
| Ku Ghent Atb 2 | Kentucky | Carroll | 222 | High | Satisfactory | 1994 | Other |
| Cheesman | Colorado | Jefferson | 221 | High | Satisfactory | 1905 | Water Supply |
| Box Canyon Dam | California | Siskiyou | 220 | High | Satisfactory | 1970 | Flood Risk Reduction |
| Boysen Dam | Wyoming | Fremont | 220 | High | Not Available | 1952 | Flood Risk Reduction |
| Portugues Dam | Puerto Rico | Ponce | 220 | High | Satisfactory | 2015 | Flood Risk Reduction |
| Mcnary Lock and Dam | Oregon | Benton | 220 | High | Not Available | 1954 | Navigation |
| Philpott Dam | Virginia | Franklin | 220 | High | Not Available | 1953 | Flood Risk Reduction |
| Big Tujunga No. 1 | California | Los Angeles | 220 | High | Satisfactory | 1931 | Flood Risk Reduction |
| Buchanan Dam | California | Madera | 219 | High | Not Available | 1975 | Flood Risk Reduction |
| Causey Dam | Utah | Weber | 218 | High | Not Available | 1966 | Irrigation |
| La Grande | Washington | Thurston | 217 | High | Satisfactory | 1944 | Hydroelectric |
| Santeetlah | North Carolina | Graham | 216 | High | Poor | 1928 | Hydroelectric |
| Toa Vaca Dam | Puerto Rico | Villalba | 215 | High | Satisfactory | 1972 | Irrigation |
| Bear Creek | North Carolina | Jackson | 215 | High | Satisfactory | 1954 | Hydroelectric |
| Carter Lake Dam 1 | Colorado | Larimer | 214 | High | Not Available | 1952 | Hydroelectric |
| Button Rock | Colorado | Boulder | 214 | High | Satisfactory | 1969 | Water Supply |
| Pathfinder Dam | Wyoming | Natrona | 214 | High | Not Available | 1909 | Hydroelectric |
| Santa Rosa Dam | New Mexico | Guadalupe | 214 | High | Not Available | 1979 | Flood Risk Reduction |
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.