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 |
|---|---|---|---|---|---|---|---|
| Longview Dam | Missouri | Jackson | 125 | High | Not Available | 1985 | Flood Risk Reduction |
| Holter Dam | Montana | Lewis and Clark | 124 | High | Satisfactory | 1918 | Hydroelectric |
| Summit Reservoir | California | Solano | 124 | High | Satisfactory | 1968 | Water Supply |
| Hernandez | California | San Benito | 124 | High | Satisfactory | 1962 | Water Supply |
| Littlerock | California | Los Angeles | 124 | High | Satisfactory | 1924 | Other |
| Manitou | Colorado | El Paso | 124 | High | Fair | 1971 | Water Supply |
| Lake Lure Dam | North Carolina | Rutherford | 124 | High | Unsatisfactory | 1927 | Hydroelectric |
| Pine Creek Dam | Oklahoma | McCurtain | 124 | High | Not Available | 1969 | Flood Risk Reduction |
| South Fork No. 2 Dam | West Virginia | Hardy | 123 | High | Fair | 1962 | Flood Risk Reduction |
| Melvern Dam | Kansas | Osage | 123 | High | Not Available | 1972 | Flood Risk Reduction |
| Easton Reservoir Dam | Connecticut | Fairfield | 123 | High | Fair | 1926 | Water Supply |
| Standley Lake | Colorado | Jefferson | 123 | High | Satisfactory | 1913 | Irrigation |
| Henshaw | California | San Diego | 123 | High | Satisfactory | 1923 | Water Supply |
| Duck Creek Station Dams | Illinois | Fulton | 123 | High | Not Available | 1975 | Other |
| Lake Mission Viejo | California | Orange | 123 | High | Poor | 1976 | Water Supply |
| Balsam Meadow Forebay Main | California | Fresno | 123 | High | Satisfactory | 1986 | Hydroelectric |
| Cottonwood Springs Dam | South Dakota | Fall River | 123 | High | Not Available | 1969 | Flood Risk Reduction |
| Cat Creek | Nevada | Mineral | 123 | High | Unsatisfactory | 1932 | Water Supply |
| Dry Falls Dam | Washington | Grant | 123 | High | Not Available | 1949 | Flood Risk Reduction |
| Bucks Lake | California | Plumas | 123 | High | Satisfactory | 1928 | Hydroelectric |
| Elkwater Fork WS Dam | West Virginia | Randolph | 123 | High | Satisfactory | 2009 | Water Supply |
| Soulajule | California | Marin | 122 | High | Satisfactory | 1979 | Water Supply |
| Joe D. Waggonner, Jr. Lock and Dam | Louisiana | Caddo | 122 | Significant | Not Available | 1985 | Navigation |
| Fort Cobb Dam | Oklahoma | Caddo | 122 | High | Not Available | 1959 | Flood Risk Reduction |
| Hammond Dam | Pennsylvania | Tioga | 122 | High | Not Available | 1978 | Flood Risk Reduction |
| Oxford | North Carolina | Alexander | 122 | High | Fair | 1928 | Hydroelectric |
| South Fork No. 1 Dam | West Virginia | Hardy | 122 | High | Fair | 1963 | Flood Risk Reduction |
| Lost Creek | California | Butte | 122 | High | Fair | 1924 | Hydroelectric |
| Isabella Fresh Water | Pennsylvania | Fayette | 122 | Significant | Fair | - | Grade Stabilization |
| North Fork of Pound Dam | Virginia | Wise | 122 | High | Not Available | 1966 | Flood Risk Reduction |
| Belle Fourche Dam | South Dakota | Butte | 122 | High | Not Available | 1911 | Irrigation |
| Lewellyn Amd Impoundment | West Virginia | Marion | 122 | High | Not Available | - | Other |
| Devil`s Kitchen Dam | Illinois | Williamson | 121 | High | Satisfactory | 1959 | Fish and Wildlife Pond |
| Englewood Dam | Ohio | Montgomery | 121 | High | Fair | 1922 | Flood Risk Reduction |
| Keystone Dam | Oklahoma | Tulsa | 121 | High | Not Available | 1964 | Flood Risk Reduction |
| Maggie Creek Dam | Nevada | Elko | 121 | High | Fair | 1992 | Flood Risk Reduction |
| Bully Creek Dam | Oregon | Malheur | 121 | High | Not Available | 1963 | Flood Risk Reduction |
| Plant Wansley Main Storage Lake Dam | Georgia | Carroll | 121 | High | Satisfactory | 1975 | Water Supply |
| Swift No 2 Hydroelectric Project | Washington | Cowlitz | 121 | Low | Satisfactory | 1959 | Hydroelectric |
| Texas Basin | Idaho | Owyhee | 121 | High | Fair | 1979 | Irrigation |
| Momentive Landfill #2 Dam | West Virginia | Tyler | 121 | High | Satisfactory | - | Tailings |
| Perry Dam | Kansas | Jefferson | 121 | High | Not Available | 1966 | Flood Risk Reduction |
| Fairmont | California | Los Angeles | 121 | High | Satisfactory | 1912 | Flood Risk Reduction |
| Lake Desmet (North Dam) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Wallace | Georgia | Hancock | 120 | High | Satisfactory | 1980 | Hydroelectric |
| Little Mulberry Creek Site 1 | Arkansas | Crawford | 120 | High | Fair | 1975 | Water Supply |
| Fawn Mine #91 Refuse Impoundment | Pennsylvania | Butler | 120 | High | Fair | - | Other |
| Grayson Dam | Kentucky | Carter | 120 | High | Not Available | 1968 | Flood Risk Reduction |
| Lake Brownwood Dam | Texas | Brown | 120 | High | Satisfactory | 1933 | Water Supply |
| Lake Desmet (A,B,C & Spillway Dikes) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
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.