Browse Dams
16,901 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 16,901 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 |
|---|---|---|---|---|---|---|---|
| Chino Mines Tailings Dam No. 7 | New Mexico | Grant | 230 | High | Satisfactory | 1988 | Tailings |
| Horsetooth-Soldier Canyon | Colorado | Larimer | 230 | High | Not Available | 1949 | Irrigation |
| Calderwood | Tennessee | Blount | 230 | High | Satisfactory | 1930 | Hydroelectric |
| Masonry Dam | Washington | King | 230 | High | Satisfactory | 1914 | Hydroelectric |
| 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 |
| Beaver Dam | Arkansas | Carroll | 228 | High | Not Available | 1963 | Flood Risk Reduction |
| Rollins | California | Nevada | 228 | High | Satisfactory | 1965 | Water Supply |
| Ramona | California | San Diego | 228 | High | Satisfactory | 1988 | Water Supply |
| Pit No. 7 Diversion | California | Shasta | 228 | High | Satisfactory | 1965 | Hydroelectric |
| Sanford Dam | Texas | Hutchinson | 228 | High | Not Available | 1965 | Recreation |
| Lower Granite Lock and Dam | Washington | Whitman | 228 | High | Not Available | 1975 | Navigation |
| 4 West | Arizona | Graham | 226 | High | Not Available | — | Tailings |
| Lower Monumental Lock and Dam | Washington | Franklin | 226 | High | Not Available | 1969 | Navigation |
| Little Goose Lock and Dam | Washington | Columbia | 226 | High | Not Available | 1970 | Navigation |
| New Lake Arrowhead | California | San Bernardino | 225 | High | Satisfactory | 1976 | Water Supply |
| Big Santa Anita | California | Los Angeles | 225 | High | Satisfactory | 1927 | Flood Risk Reduction |
| Horsetooth-Spring Canyon | Colorado | Larimer | 225 | High | Not Available | 1949 | Irrigation |
| Indian Valley | California | Lake | 225 | High | Fair | 1975 | Irrigation |
| Broken Bow Dam | Oklahoma | McCurtain | 225 | High | Not Available | 1968 | Flood Risk Reduction |
| Long Lake | Washington | Stevens | 225 | High | Fair | 1915 | Hydroelectric |
| Canyon Ferry Dam | Montana | Lewis and Clark | 225 | High | Not Available | 1954 | Flood Risk Reduction |
| Raystown Dam | Pennsylvania | Huntingdon | 225 | High | Not Available | 1973 | Flood Risk Reduction |
| San Joaquin Reservoir | California | Orange | 224 | High | Satisfactory | 1966 | Water Supply |
| Mormon Flat Dam | Arizona | Maricopa | 224 | High | Not Available | 1926 | Hydroelectric |
| 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 |
| Salmon Falls | Idaho | Twin Falls | 224 | High | Fair | 1911 | Other |
| Colebrook River Dam | Connecticut | Litchfield | 223 | High | Not Available | 1969 | Flood Risk Reduction |
| John Amos Flyash Dam | West Virginia | Putnam | 223 | High | Satisfactory | 1978 | Tailings |
| 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 |
| Portugues Dam | Puerto Rico | Ponce | 220 | High | Satisfactory | 2015 | Flood Risk Reduction |
| Big Tujunga No. 1 | California | Los Angeles | 220 | High | Satisfactory | 1931 | Flood Risk Reduction |
| Box Canyon | California | Siskiyou | 220 | High | Satisfactory | 1970 | 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 |
| Boysen Dam | Wyoming | Fremont | 220 | High | Not Available | 1952 | 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 |
| King Branch Slurry Dam | Kentucky | Knott | 214 | High | Not Available | — | Tailings |
| Carter Lake Dam 1 | Colorado | Larimer | 214 | High | Not Available | 1952 | Hydroelectric |
| Button Rock | Colorado | Boulder | 214 | High | Satisfactory | 1969 | Water Supply |
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.