Browse Dams
92,766 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 92,766 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 |
|---|---|---|---|---|---|---|---|
| Mayflower Pond # 5 | Colorado | Summit | 237 | High | Not Available | - | Tailings |
| El Capitan | California | San Diego | 237 | High | Poor | 1934 | Water Supply |
| Cheoah | North Carolina | Graham | 236 | High | Satisfactory | 1919 | Hydroelectric |
| Juniper Tailings Dam | Nevada | Humboldt | 236 | Significant | Fair | 1997 | Tailings |
| Howard A. Hanson Dam | Washington | King | 235 | High | Not Available | 1962 | Flood Risk Reduction |
| Robinson Tailing Pond #1dam | Colorado | Summit | 235 | High | Not Available | - | Other |
| #1 Tailings Pond | Colorado | Eagle | 235 | Significant | Not Available | - | Tailings |
| Conchas Dam | New Mexico | San Miguel | 235 | High | Not Available | 1940 | Flood Risk Reduction |
| Twelvepole Refuse Impoundment | West Virginia | Mingo | 235 | High | Not Available | - | Tailings |
| Smith | Oregon | Linn | 235 | High | Unsatisfactory | 1963 | Hydroelectric |
| Caonillas Dam | Puerto Rico | Jayuya | 235 | High | Satisfactory | 1948 | Hydroelectric |
| Saluda | South Carolina | Lexington | 234 | High | Satisfactory | 1930 | Hydroelectric |
| Tygart Dam | West Virginia | Taylor | 234 | High | Not Available | 1938 | Flood Risk Reduction |
| L. L. Anderson | California | Placer | 231 | High | Satisfactory | 1965 | Irrigation |
| Los Vaqueros | California | Contra Costa | 231 | High | Satisfactory | 1997 | Water Supply |
| Buford Dam | Georgia | Gwinnett | 231 | High | Not Available | 1958 | Flood Risk Reduction |
| Calderwood | Tennessee | Blount | 230 | High | Satisfactory | 1930 | Hydroelectric |
| Horsetooth-Soldier Canyon | Colorado | Larimer | 230 | High | Not Available | 1949 | Irrigation |
| Raccoon Mountain Dam | Tennessee | Marion | 230 | High | Not Available | 1978 | Hydroelectric |
| Chief Joseph Dam | Washington | Douglas | 230 | High | Not Available | 1955 | Hydroelectric |
| Chino Mines Tailings Dam No. 7 | New Mexico | Grant | 230 | Significant | Satisfactory | 1988 | Tailings |
| El Vado Dam | New Mexico | Rio Arriba | 230 | High | Not Available | 1935 | Irrigation |
| Masonry Dam | Washington | King | 230 | High | Satisfactory | 1914 | Hydroelectric |
| John Day Lock and Dam | Oregon | Klickitat | 230 | High | Not Available | 1968 | Navigation |
| Peters | California | Marin | 230 | High | Satisfactory | 1954 | Water Supply |
| Simplot Phosphates Tailings Dam | Utah | Uintah | 230 | Significant | Not Rated | 1973 | |
| Pacificorp - Electric Lake | Utah | Emery | 229 | High | Satisfactory | 1974 | Water Supply |
| Beaver Dam - Saddle Dike 3 | Arkansas | Carroll | 229 | High | Not Available | 1963 | Flood Risk Reduction |
| Trampas Canyon | California | Orange | 229 | High | Satisfactory | 1975 | Other |
| Lower Granite Lock and Dam | Washington | Whitman | 228 | High | Not Available | 1975 | Navigation |
| Rollins | California | Nevada | 228 | High | Satisfactory | 1965 | Water Supply |
| Pit No. 7 Diversion | California | Shasta | 228 | High | Satisfactory | 1965 | Hydroelectric |
| Beaver Dam | Arkansas | Carroll | 228 | High | Not Available | 1963 | Flood Risk Reduction |
| Ramona | California | San Diego | 228 | High | Satisfactory | 1988 | Water Supply |
| Sanford Dam | Texas | Hutchinson | 228 | High | Not Available | 1965 | Recreation |
| Solutia #15 Dam | Tennessee | Maury | 227 | Low | Satisfactory | 1977 | |
| Little Goose Lock and Dam | Washington | Columbia | 226 | High | Not Available | 1970 | Navigation |
| Lower Monumental Lock and Dam | Washington | Franklin | 226 | High | Not Available | 1969 | Navigation |
| 4 West | Arizona | Graham | 226 | High | Not Available | - | Tailings |
| Long Lake | Washington | Stevens | 225 | High | Fair | 1915 | Hydroelectric |
| Broken Bow Dam | Oklahoma | McCurtain | 225 | High | Not Available | 1968 | Flood Risk Reduction |
| 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 |
| Indian Valley | California | Lake | 225 | High | Fair | 1975 | Irrigation |
| Horsetooth-Spring Canyon | Colorado | Larimer | 225 | High | Not Available | 1949 | Irrigation |
| Broken Bow Dam - Reregulation Dam | Oklahoma | McCurtain | 225 | Low | Not Available | 1968 | Flood Risk Reduction |
| Silver Basin 1 | Arizona | Graham | 225 | Significant | Not Available | - | Tailings |
| 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 |
| Salmon Falls | Idaho | Twin Falls | 224 | High | Fair | 1911 | Other |
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.