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 |
|---|---|---|---|---|---|---|---|
| Mount Morris Dam | New York | Livingston | 249 | High | Not Available | 1952 | Flood Risk Reduction |
| Cedar Springs | California | San Bernardino | 249 | High | Fair | 1971 | Water Supply |
| Lost Creek Dam | Utah | Morgan | 248 | High | Not Available | 1966 | Irrigation |
| Norfork Dam | Arkansas | Baxter | 248 | High | Not Available | 1944 | Flood Risk Reduction |
| Ball Mountain Dam | Vermont | Windham | 247 | High | Not Available | 1961 | Flood Risk Reduction |
| Browns Run Impoundment | West Virginia | Marshall | 246 | High | Not Available | — | Tailings |
| Lower Bear | California | Amador | 245 | High | Satisfactory | 1952 | Hydroelectric |
| Hughes Hollow Slurry Impoundment | Pennsylvania | Greene | 245 | High | Satisfactory | — | Other |
| Pactola Dam | South Dakota | Pennington | 245 | High | Not Available | 1956 | Flood Risk Reduction |
| Cobble Mountain Reservoir Dam | Massachusetts | Hampden | 245 | High | Satisfactory | 1930 | Water Supply |
| Arthur R. Bowman Dam | Oregon | Crook | 245 | High | Not Available | 1961 | Flood Risk Reduction |
| Oahe Dam - Fort Yates Flood Protection Project | South Dakota | Sioux | 245 | High | Not Available | 1966 | Flood Risk Reduction |
| Labelle Slurry Pond #3 | Pennsylvania | Fayette | 245 | High | Satisfactory | 1958 | Other |
| Oahe Dam | South Dakota | Stanley | 245 | High | Not Available | 1966 | Flood Risk Reduction |
| Pueblo Dam | Colorado | Pueblo | 245 | High | Not Available | 1975 | Flood Risk Reduction |
| Horsetooth-Dixon Canyon | Colorado | Larimer | 245 | High | Not Available | 1949 | Irrigation |
| Morris | California | Los Angeles | 245 | High | Satisfactory | 1935 | Other |
| Kortes Dam | Wyoming | Carbon | 244 | High | Not Available | 1951 | Hydroelectric |
| Mcelroy Run Dam | West Virginia | Pleasants | 243 | High | Satisfactory | 1978 | Tailings |
| DeGray Dam - Saddle Dike | Arkansas | Clark | 243 | High | Not Available | 1969 | Flood Risk Reduction |
| Cardinal Fly Ash No. 1 Dam | Ohio | Jefferson | 242 | High | Satisfactory | 1974 | Tailings |
| Applegate Dam | Oregon | Jackson | 242 | High | Not Available | 1980 | Flood Risk Reduction |
| Clifford D. Craig Memorial Dam | Virginia | Roanoke | 241 | High | Fair | — | Water Supply |
| Twitchell Dam | California | Santa Barbara | 241 | High | Not Available | 1958 | Flood Risk Reduction |
| Deer Creek Dam | Utah | Wasatch | 240 | High | Not Available | 1941 | Irrigation |
| Blakely Mountain Dam | Arkansas | Garland | 240 | High | Not Available | 1953 | Flood Risk Reduction |
| Anderson | California | Santa Clara | 240 | High | Unsatisfactory | 1950 | Water Supply |
| Francis E. Walter Dam | Pennsylvania | Luzerne | 239 | High | Not Available | 1961 | Flood Risk Reduction |
| Mount St. Helens Sediment Retention Structure | Washington | Cowlitz | 239 | High | Not Available | 1988 | Flood Risk Reduction |
| Stampede Dam | California | Sierra | 239 | High | Not Available | 1970 | Irrigation |
| Mayflower Pond # 5 | Colorado | Summit | 237 | High | Not Available | — | Tailings |
| El Capitan | California | San Diego | 237 | High | Poor | 1934 | Water Supply |
| Smith Mountain Combination Pump Storage | Virginia | Pittsylvania | 237 | High | Satisfactory | 1964 | Hydroelectric |
| Cheoah | North Carolina | Graham | 236 | High | Satisfactory | 1919 | Hydroelectric |
| Robinson Tailing Pond #1dam | Colorado | Summit | 235 | High | Not Available | — | Other |
| Conchas Dam | New Mexico | San Miguel | 235 | High | Not Available | 1940 | Flood Risk Reduction |
| Caonillas Dam | Puerto Rico | Jayuya | 235 | High | Satisfactory | 1948 | Hydroelectric |
| Howard A. Hanson Dam | Washington | King | 235 | High | Not Available | 1962 | Flood Risk Reduction |
| Smith | Oregon | Linn | 235 | High | Unsatisfactory | 1963 | Hydroelectric |
| Twelvepole Refuse Impoundment | West Virginia | Mingo | 235 | High | Not Available | — | Tailings |
| Saluda | South Carolina | Lexington | 234 | High | Satisfactory | 1930 | Hydroelectric |
| Tygart Dam | West Virginia | Taylor | 234 | High | Not Available | 1938 | Flood Risk Reduction |
| Los Vaqueros | California | Contra Costa | 231 | High | Satisfactory | 1997 | Water Supply |
| L. L. Anderson | California | Placer | 231 | High | Satisfactory | 1965 | Irrigation |
| Buford Dam | Georgia | Gwinnett | 231 | High | Not Available | 1958 | Flood Risk Reduction |
| Masonry Dam | Washington | King | 230 | High | Satisfactory | 1914 | Hydroelectric |
| Horsetooth-Soldier Canyon | Colorado | Larimer | 230 | High | Not Available | 1949 | Irrigation |
| Chino Mines Tailings Dam No. 7 | New Mexico | Grant | 230 | High | Satisfactory | 1988 | Tailings |
| Chief Joseph Dam | Washington | Douglas | 230 | High | Not Available | 1955 | Hydroelectric |
| John Day Lock and Dam | Oregon | Klickitat | 230 | High | Not Available | 1968 | Navigation |
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.