Browse Dams
7,892 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 7,892 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 |
|---|---|---|---|---|---|---|---|
| Castaic | California | Los Angeles | 340 | High | Poor | 1973 | Water Supply |
| Mill 5/6 Center Tailings Storage Facility | Nevada | Eureka | 300 | Significant | Poor | 1991 | Tailings |
| Amistad Dam | Texas | Val Verde | 287 | High | Poor | 1969 | Flood Risk Reduction |
| Lower Baker | Washington | Skagit | 285 | High | Poor | 1927 | Hydroelectric |
| Nacimiento Dam | California | San Luis Obispo | 255 | High | Poor | 1956 | Hydroelectric |
| El Capitan | California | San Diego | 237 | High | Poor | 1934 | Water Supply |
| Santeetlah | North Carolina | Graham | 216 | High | Poor | 1928 | Hydroelectric |
| Santa Felicia Dam | California | Ventura | 213 | High | Poor | 1955 | Water Supply |
| Chimney Rock Pump Storage | Oklahoma | Mayes | 195 | High | Poor | 1968 | Hydroelectric |
| Lake Arrowhead | California | San Bernardino | 190 | Significant | Poor | 1922 | Water Supply |
| Guayo Dam | Puerto Rico | Adjuntas | 190 | High | Poor | 1956 | Hydroelectric |
| Waterbury | Vermont | Washington | 187 | High | Poor | 1938 | Flood Risk Reduction |
| Morena | California | San Diego | 181 | High | Poor | 1912 | Water Supply |
| Lone Tree Section 23 Tails Dam | Nevada | Humboldt | 180 | Significant | Poor | 1996 | Tailings |
| Vermilion Valley | California | Fresno | 165 | High | Poor | 1954 | Hydroelectric |
| Matilija | California | Ventura | 163 | High | Poor | 1949 | Other |
| Barrett | California | San Diego | 161 | High | Poor | 1922 | Water Supply |
| Wells | Washington | Chelan | 160 | High | Poor | 1968 | Hydroelectric |
| Kootenai Dvlpmnt Impoundment Dam | Montana | Lincoln | 151 | High | Poor | 1980 | Other |
| James Creek Diversion Dam | Nevada | Eureka | 150 | High | Poor | 1985 | Flood Risk Reduction |
| Bartletts Ferry, Main Dam | Georgia | Harris | 150 | High | Poor | 1926 | Hydroelectric |
| Savage | California | San Diego | 149 | High | Poor | 1919 | Water Supply |
| Lake Fordyce Dam | California | Nevada | 145 | High | Poor | 1873 | Hydroelectric |
| West Fork Bitterroot (Painted Rocks) | Montana | Ravalli | 143 | High | Poor | 1940 | Irrigation |
| Eagle Nest Dam | New Mexico | Colfax | 142 | High | Poor | 1918 | Irrigation |
| Logan Martin | Alabama | St. Clair | 142 | High | Poor | 1964 | Hydroelectric |
| Guadalupe | California | Santa Clara | 142 | High | Poor | 1935 | Water Supply |
| Coyote | California | Santa Clara | 140 | High | Poor | 1936 | Water Supply |
| Relief | California | Tuolumne | 140 | High | Poor | 1909 | Hydroelectric |
| Tabeaud | California | Amador | 136 | High | Poor | 1901 | Hydroelectric |
| Santiago Creek | California | Orange | 136 | High | Poor | 1933 | Water Supply |
| Elgo | Arizona | Graham | 133 | High | Poor | 1979 | Recreation |
| Newlan Creek Dam | Montana | Meagher | 131 | High | Poor | 1977 | Irrigation |
| Hubbart | Montana | Flathead | 130 | High | Poor | 1923 | Irrigation |
| Guayabal Dam | Puerto Rico | Villalba | 130 | High | Poor | 1913 | Irrigation |
| Comerio Ii Dam | Puerto Rico | ComerĂo | 128 | High | Poor | 1913 | Hydroelectric |
| Mcclure Dam | New Mexico | Santa Fe | 128 | High | Poor | 1926 | Water Supply |
| Patillas Dam | Puerto Rico | Patillas | 127 | High | Poor | 1976 | Hydroelectric |
| Inghams Dam | New York | Fulton | 125 | High | Poor | 1911 | Hydroelectric |
| Cannon Creek Dam | Kentucky | Bell | 125 | High | Poor | 1972 | Water Supply |
| Lake Mission Viejo | California | Orange | 123 | High | Poor | 1976 | Water Supply |
| Cranks Creek Lake Dam | Kentucky | Harlan | 120 | High | Poor | 1963 | Recreation |
| Guajataca Dam | Puerto Rico | Isabela | 120 | High | Poor | 1927 | Hydroelectric |
| Druid Hill Lake Reservoir and Storage Tanks | Maryland | Baltimore City | 118 | High | Poor | 1871 | Water Supply |
| Guineo Dam | Puerto Rico | Orocovis | 115 | High | Poor | 1931 | Hydroelectric |
| Little Pine Creek | Pennsylvania | Lycoming | 113 | High | Poor | 1950 | Flood Risk Reduction |
| Lake Maloya Dam | New Mexico | Colfax | 110 | High | Poor | 1914 | Water Supply |
| Almaden | California | Santa Clara | 110 | High | Poor | 1936 | Other |
| Beaver Lake Dam | Nebraska | Cass | 108 | High | Poor | 1973 | Recreation |
| Lake Curry | California | Napa | 107 | High | Poor | 1926 | 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.