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 |
|---|---|---|---|---|---|---|---|
| Salmon Falls | Idaho | Twin Falls | 224 | High | Fair | 1911 | Other |
| San Joaquin Reservoir | California | Orange | 224 | High | Satisfactory | 1966 | Water Supply |
| Little Dell | Utah | Salt Lake | 224 | High | Satisfactory | 1993 | Water Supply |
| Canyon Lake Dam | Texas | Comal | 224 | High | Not Available | 1964 | Flood Risk Reduction |
| Mormon Flat Dam | Arizona | Maricopa | 224 | High | Not Available | 1926 | Hydroelectric |
| 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 |
| Phoenix Tailings Dam | Nevada | Lander | 221 | Low | Unsatisfactory | 1971 | Tailings |
| Cheesman | Colorado | Jefferson | 221 | High | Satisfactory | 1905 | Water Supply |
| Big Tujunga No. 1 | California | Los Angeles | 220 | High | Satisfactory | 1931 | Flood Risk Reduction |
| Portugues Dam | Puerto Rico | Ponce | 220 | High | Satisfactory | 2015 | 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 | Fair | 2019 | Tailings |
| Box Canyon Dam | California | Siskiyou | 220 | High | Satisfactory | 1970 | 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 |
| Moss No. 3 Third Dam | Virginia | Russell | 216 | Undetermined | Not Rated | - | Tailings |
| Santeetlah | North Carolina | Graham | 216 | High | Poor | 1928 | Hydroelectric |
| Cortez Area 28 Tsf Dam | Nevada | Lander | 215 | Low | Fair | 1997 | Tailings |
| Bear Creek | North Carolina | Jackson | 215 | High | Satisfactory | 1954 | Hydroelectric |
| Toa Vaca Dam | Puerto Rico | Villalba | 215 | High | Satisfactory | 1972 | Irrigation |
| Yadkin Narrows | North Carolina | Stanly | 214 | High | Satisfactory | 1917 | Hydroelectric |
| Carter Lake Dam 1 | Colorado | Larimer | 214 | High | Not Available | 1952 | Hydroelectric |
| Button Rock | Colorado | Boulder | 214 | High | Satisfactory | 1969 | Water Supply |
| Santa Rosa Dam | New Mexico | Guadalupe | 214 | High | Not Available | 1979 | Flood Risk Reduction |
| Pathfinder Dam | Wyoming | Natrona | 214 | High | Not Available | 1909 | Hydroelectric |
| King Branch Slurry Dam | Kentucky | Knott | 214 | High | Not Available | - | Tailings |
| Iron Canyon Dam | California | Shasta | 214 | High | Satisfactory | 1965 | Hydroelectric |
| Ashokan Dam | New York | Ulster | 213 | High | Satisfactory | 1916 | Water Supply |
| Saluda Backup Berm | South Carolina | Lexington | 213 | High | Satisfactory | 2005 | Hydroelectric |
| Rockcamp Branch Refuse Disposal Facility | West Virginia | Nicholas | 213 | High | Not Available | - | Tailings |
| Brush Creek | California | El Dorado | 213 | Significant | Satisfactory | 1970 | Hydroelectric |
| Santa Felicia Dam | California | Ventura | 213 | High | Poor | 1955 | Water Supply |
| Questa Tailings Dam 4 | New Mexico | Taos | 212 | High | Satisfactory | 1966 | Tailings |
| Lake Fort Smith Dam | Arkansas | Poinsett | 212 | High | Fair | 1936 | Water Supply |
| Tiber Dam | Montana | Liberty | 211 | High | Not Available | 1956 | Flood Risk Reduction |
| Starvation Dam | Utah | Duchesne | 210 | High | Not Available | 1970 | Irrigation |
| Mill 5/6 West Tails Storage Facility | Nevada | Eureka | 210 | Low | Fair | 2011 | Tailings |
| New Hogan Dam | California | Calaveras | 210 | High | Not Available | 1963 | Flood Risk Reduction |
| Cabin Creek Upper | Colorado | Clear Creek | 210 | High | Satisfactory | 1967 | Hydroelectric |
| North Catamount | Colorado | Teller | 210 | High | Satisfactory | 1959 | Water Supply |
| Stewart Mountain Dam | Arizona | Maricopa | 210 | High | Not Available | 1930 | Hydroelectric |
| Green Lake | Alaska | City and Borough of Sitka | 210 | Significant | Satisfactory | 1982 | Hydroelectric |
| Victoria | Michigan | Ontonagon | 210 | High | Satisfactory | 1930 | 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.