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 |
|---|---|---|---|---|---|---|---|
| Jamie L. Whitten Lock and Dam | Mississippi | Tishomingo | 120 | High | Not Available | 1983 | Navigation |
| Lake Desmet (A,B,C & Spillway Dikes) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Cordry Lake Dam | Indiana | Brown | 120 | Significant | Fair | 1969 | |
| Grayson Dam | Kentucky | Carter | 120 | High | Not Available | 1968 | Flood Risk Reduction |
| Lake Brownwood Dam | Texas | Brown | 120 | High | Satisfactory | 1933 | Water Supply |
| Elizabeth Mine Tp-1 | Vermont | Orange | 120 | High | Satisfactory | 1958 | Tailings |
| 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 |
| Upper Dam | Georgia | Floyd | 120 | High | Satisfactory | 1995 | Hydroelectric |
| Boonton Dam | New Jersey | Morris | 120 | High | Satisfactory | 1905 | Water Supply |
| Tiger Creek Afterbay Dam | California | Amador | 120 | High | Fair | 1931 | Hydroelectric |
| Red Mountain Reservoir | California | San Diego | 120 | High | Satisfactory | 1985 | Water Supply |
| Yadkin Falls | North Carolina | Montgomery | 120 | High | Satisfactory | 1919 | Hydroelectric |
| Martins Fork Dam | Kentucky | Harlan | 120 | High | Not Available | 1978 | Flood Risk Reduction |
| Harman Mining Corp Dam | Virginia | Buchanan | 120 | Undetermined | Not Rated | - | Other |
| Loyalhanna Dam | Pennsylvania | Westmoreland | 120 | High | Not Available | 1942 | Flood Risk Reduction |
| Fawn Mine #91 Refuse Impoundment | Pennsylvania | Butler | 120 | High | Fair | - | Other |
| Lower Main Dam | Georgia | Floyd | 120 | High | Satisfactory | 1993 | Hydroelectric |
| Rosemont | Colorado | Teller | 120 | Significant | Satisfactory | 1961 | Water Supply |
| Continental | Colorado | Hinsdale | 120 | High | Satisfactory | 1927 | Irrigation |
| Hebgen Dam | Montana | Gallatin | 120 | High | Satisfactory | 1915 | Hydroelectric |
| Holt Lock and Dam | Alabama | Tuscaloosa | 120 | High | Not Available | 1968 | Navigation |
| Lake Desmet (South Dam) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Bluecat Lake Dam | Tennessee | Maury | 120 | High | Satisfactory | 1979 | |
| Maple Creek Slurry Pond 1 | Pennsylvania | Washington | 120 | High | Satisfactory | 1973 | Other |
| Cave Creek | Arizona | Maricopa | 120 | Low | Not Rated | 1923 | Flood Risk Reduction |
| Guajataca Dam | Puerto Rico | Isabela | 120 | High | Poor | 1927 | Hydroelectric |
| Matrullas Dam | Puerto Rico | Orocovis | 120 | High | Unsatisfactory | 1934 | Hydroelectric |
| Milton Seaman | Colorado | Larimer | 120 | High | Satisfactory | 1948 | Water Supply |
| Otter Brook Dam | New Hampshire | Cheshire | 119 | High | Not Available | 1958 | Flood Risk Reduction |
| Ute Creek | Colorado | Grand | 119 | Low | Not Rated | 1976 | Water Supply |
| Cecil M. Harden Dam | Indiana | Parke | 119 | High | Not Available | 1960 | Flood Risk Reduction |
| Lewiston Reservoir Dike | New York | Niagara | 119 | High | Satisfactory | 1963 | Hydroelectric |
| T Or C Site 8c Dam | New Mexico | Sierra | 119 | High | Fair | 1981 | Flood Risk Reduction |
| Wylie | South Carolina | York | 119 | High | Satisfactory | 1925 | Hydroelectric |
| Hobo Ventures | Pennsylvania | Washington | 118 | Low | Fair | - | |
| North Springfield Dam | Vermont | Windsor | 118 | High | Not Available | 1960 | Flood Risk Reduction |
| Settlement Canyon | Utah | Tooele | 118 | High | Fair | 1966 | Irrigation |
| Upper North River #76 | Virginia | Augusta | 118 | High | Satisfactory | - | Flood Risk Reduction |
| Two Rivers Diamond A Dam | New Mexico | Chaves | 118 | High | Not Available | 1963 | Flood Risk Reduction |
| Cave Buttes | Arizona | Maricopa | 118 | High | Satisfactory | 1980 | Flood Risk Reduction |
| Dewey Dam | Kentucky | Floyd | 118 | High | Not Available | 1949 | Flood Risk Reduction |
| Elwood Dam | Nebraska | Gosper | 118 | High | Satisfactory | 1976 | Irrigation |
| Villa Park | California | Orange | 118 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Massena Intake | New York | St. Lawrence | 118 | High | Satisfactory | 1958 | Hydroelectric |
| Wirtz Dam | Texas | Burnet | 118 | High | Satisfactory | 1951 | Irrigation |
| John Martin Dam - Fort Lyon Protective Works | Colorado | Bent | 118 | High | Not Available | 1943 | Flood Risk Reduction |
| Markland Locks and Dam | Kentucky | Gallatin | 118 | Significant | Not Available | 1964 | Navigation |
| Druid Hill Lake Reservoir and Storage Tanks | Maryland | Baltimore City | 118 | High | Poor | 1871 | 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.