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 |
|---|---|---|---|---|---|---|---|
| Skookumchuck | Washington | Thurston | 160 | High | Satisfactory | 1970 | Hydroelectric |
| Wells | Washington | Chelan | 160 | High | Poor | 1968 | Hydroelectric |
| Ponderosa | California | Butte | 160 | Low | Satisfactory | 1962 | Hydroelectric |
| Paintsville Dam | Kentucky | Johnson | 160 | High | Not Available | 1980 | Flood Risk Reduction |
| San Antonio Dam | California | San Bernardino | 160 | High | Not Available | 1956 | Flood Risk Reduction |
| Juncal | California | Santa Barbara | 160 | High | Satisfactory | 1930 | Other |
| Dequeen Dam - Saddle Dike C | Arkansas | Sevier | 160 | High | Not Available | 1977 | Flood Risk Reduction |
| Buckhorn Dam | Kentucky | Perry | 160 | High | Not Available | 1960 | Flood Risk Reduction |
| Willow Creek Dam | Oregon | Morrow | 160 | High | Not Available | 1982 | Flood Risk Reduction |
| Gillham Dam | Arkansas | Howard | 160 | High | Not Available | 1975 | Flood Risk Reduction |
| Squaw Creek Dam | Texas | Somervell | 159 | High | Not Rated | 1977 | Recreation |
| Miller Steam Plant Ash Pond | Alabama | Jefferson | 158 | Low | Not Rated | 1977 | Other |
| Bonny Dam | Colorado | Yuma | 158 | High | Not Available | 1951 | Flood Risk Reduction |
| Horsetooth Dam | Colorado | Larimer | 158 | High | Not Available | 1949 | Irrigation |
| Westlake Reservoir | California | Los Angeles | 158 | High | Satisfactory | 1972 | Water Supply |
| Tuttle Creek Dam - Blue Rapids Levee | Kansas | Marshall | 157 | High | Not Available | 1963 | Flood Risk Reduction |
| Santa Ynez Canyon | California | Los Angeles | 157 | High | Satisfactory | 1968 | Other |
| Lake Patagonia | Arizona | Santa Cruz | 157 | High | Satisfactory | 1968 | Recreation |
| Tuttle Creek Dam | Kansas | Pottawatomie | 157 | High | Not Available | 1960 | Flood Risk Reduction |
| Rifle Gap Dam | Colorado | Garfield | 157 | High | Not Available | 1967 | Irrigation |
| Barkley Lock and Dam | Kentucky | Lyon | 157 | High | Not Available | 1966 | Navigation |
| Keswick Dam | California | Shasta | 157 | High | Not Available | 1950 | Flood Risk Reduction |
| Yatesville Dam | Kentucky | Lawrence | 156 | High | Not Available | 1988 | Flood Risk Reduction |
| Black Butte Dam | California | Tehama | 156 | High | Not Available | 1963 | Flood Risk Reduction |
| Nepaug Dam | Connecticut | Litchfield | 156 | High | Fair | 1918 | Water Supply |
| Bragg Fork Slurry Impoundment | West Virginia | Boone | 155 | High | Not Available | — | Tailings |
| Lewiston | New York | Niagara | 155 | High | Satisfactory | 1963 | Hydroelectric |
| North Fork Dam | California | Placer | 155 | Significant | Not Available | 1939 | Debris Control |
| Pomme De Terre Dam | Missouri | Hickory | 155 | High | Not Available | 1961 | Flood Risk Reduction |
| Big Creek Dam No. 6 | California | Madera | 155 | High | Satisfactory | 1923 | Hydroelectric |
| Wyman | Maine | Somerset | 155 | High | Satisfactory | 1930 | Hydroelectric |
| Bear Swamp - North Dike | Massachusetts | Franklin | 155 | Low | Satisfactory | 1974 | Hydroelectric |
| Clearwater Dam | Missouri | Wayne | 155 | High | Not Available | 1942 | Flood Risk Reduction |
| Tailings Impoundment | Montana | Madison | 155 | Significant | — | — | |
| Tugalo | Georgia | Habersham | 155 | High | Satisfactory | 1923 | Hydroelectric |
| Prettyboy Dam | Maryland | Baltimore | 155 | High | Fair | 1936 | Water Supply |
| Table Rock Reservoir Dam | South Carolina | Pickens | 155 | High | Satisfactory | 1925 | Water Supply |
| Slickrock Creek | California | Shasta | 155 | Significant | Satisfactory | 2004 | Water Supply |
| Pensacola | Oklahoma | Mayes | 155 | High | Satisfactory | 1940 | Hydroelectric |
| Tionesta Dam | Pennsylvania | Forest | 154 | High | Not Available | 1940 | Flood Risk Reduction |
| Dorena Dam | Oregon | Lane | 154 | High | Not Available | 1949 | Flood Risk Reduction |
| Kennecott Smelter Tailings Pond | Utah | Salt Lake | 154 | Significant | Not Rated | — | Tailings |
| Moss Mine #1 Dam | Virginia | Dickenson | 154 | Undetermined | Not Rated | — | Other |
| Webster Dam | Kansas | Rooks | 154 | High | Not Available | 1956 | Flood Risk Reduction |
| Russelton Slurry Pond No 3 | Pennsylvania | Allegheny | 153 | Low | Satisfactory | 1967 | Other |
| Stockton Dam | Missouri | Cedar | 153 | High | Not Available | 1969 | Flood Risk Reduction |
| Dierks Dam | Arkansas | Sevier | 153 | High | Not Available | 1975 | Flood Risk Reduction |
| Mt. Storm Lake Dam | West Virginia | Grant | 153 | High | Satisfactory | 1964 | Other |
| Mountain Home | Colorado | Costilla | 153 | High | Satisfactory | 1908 | Irrigation |
| Big Dalton | California | Los Angeles | 153 | High | Satisfactory | 1929 | Flood Risk Reduction |
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.