Browse Dams
92,628 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 92,628 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 |
|---|---|---|---|---|---|---|---|
| Little Dell | Utah | Salt Lake | 224 | High | Satisfactory | 1993 | Water Supply |
| Mormon Flat Dam | Arizona | Maricopa | 224 | High | Not Available | 1926 | Hydroelectric |
| Salmon Falls | Idaho | Twin Falls | 224 | High | Fair | 1911 | Other |
| Canyon Lake Dam - Dike A | Texas | Comal | 224 | High | Not Available | 1964 | Flood Risk Reduction |
| 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 |
| Boysen Dam | Wyoming | Fremont | 220 | High | Not Available | 1952 | Flood Risk Reduction |
| Box Canyon | California | Siskiyou | 220 | High | Satisfactory | 1970 | Flood Risk Reduction |
| 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 |
| A-A Tails Dam | Nevada | Eureka | 220 | Significant | Fair | 1989 | Tailings |
| McNary Lock and Dam | Oregon | Benton | 220 | High | Not Available | 1954 | Navigation |
| Philpott Dam | Virginia | Franklin | 220 | High | Not Available | 1953 | Flood Risk Reduction |
| Mill 5/6 East Tailings Storage Facility | Nevada | Eureka | 220 | Significant | Satisfactory | 2019 | Tailings |
| 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 |
| Moss No. 3 Third Dam | Virginia | Russell | 216 | Undetermined | Not Rated | — | Tailings |
| Santeetlah | North Carolina | Graham | 216 | High | Poor | 1928 | Hydroelectric |
| Bear Creek | North Carolina | Jackson | 215 | High | Satisfactory | 1954 | Hydroelectric |
| Toa Vaca Dam | Puerto Rico | Villalba | 215 | High | Satisfactory | 1972 | Irrigation |
| Cortez Area 28 Tsf Dam | Nevada | Lander | 215 | Low | Fair | 1997 | Tailings |
| King Branch Slurry Dam | Kentucky | Knott | 214 | High | Not Available | — | Tailings |
| Santa Rosa Dam | New Mexico | Guadalupe | 214 | High | Not Available | 1979 | Flood Risk Reduction |
| Iron Canyon | California | Shasta | 214 | High | Satisfactory | 1965 | Hydroelectric |
| Carter Lake Dam 1 | Colorado | Larimer | 214 | High | Not Available | 1952 | Hydroelectric |
| Pathfinder Dam | Wyoming | Natrona | 214 | High | Not Available | 1909 | Hydroelectric |
| Button Rock | Colorado | Boulder | 214 | High | Satisfactory | 1969 | Water Supply |
| Yadkin Narrows | North Carolina | Stanly | 214 | High | Satisfactory | 1917 | Hydroelectric |
| Ashokan Dam | New York | Ulster | 213 | High | Satisfactory | 1916 | Water Supply |
| Santa Felicia | California | Ventura | 213 | High | Poor | 1955 | Water Supply |
| Brush Creek | California | El Dorado | 213 | Significant | Satisfactory | 1970 | Hydroelectric |
| Rockcamp Branch Refuse Disposal Facility | West Virginia | Nicholas | 213 | High | Not Available | — | Tailings |
| Saluda Backup Berm | South Carolina | Lexington | 213 | High | Satisfactory | 2005 | Hydroelectric |
| Lake Fort Smith Dam | Arkansas | Poinsett | 212 | High | Fair | 1936 | Water Supply |
| Questa Tailings Dam 4 | New Mexico | Taos | 212 | High | Satisfactory | 1966 | Tailings |
| Tiber Dam | Montana | Liberty | 211 | High | Not Available | 1956 | Flood Risk Reduction |
| Green Lake | Alaska | City and Borough of Sitka | 210 | Significant | Satisfactory | 1982 | Hydroelectric |
| Stewart Mountain Dam | Arizona | Maricopa | 210 | High | Not Available | 1930 | Hydroelectric |
| New Calaveras | California | Alameda | 210 | High | Satisfactory | 2018 | Water Supply |
| Mill 5/6 West Tails Storage Facility | Nevada | Eureka | 210 | Low | Fair | 2011 | Tailings |
| Victoria | Michigan | Ontonagon | 210 | High | Satisfactory | 1930 | Hydroelectric |
| Starvation Dam | Utah | Duchesne | 210 | High | Not Available | 1970 | Irrigation |
| North Catamount | Colorado | Teller | 210 | High | Satisfactory | 1959 | Water Supply |
| Cabin Creek Upper | Colorado | Clear Creek | 210 | High | Satisfactory | 1967 | Hydroelectric |
| Steer Branch Dam | Virginia | Wise | 210 | Undetermined | Not Rated | — | Other |
| Little Grass Valley | California | Plumas | 210 | High | Satisfactory | 1961 | Hydroelectric |
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.