Browse Dams
17,049 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 17,049 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 |
|---|---|---|---|---|---|---|---|
| Tiger Creek Afterbay Dam | California | Amador | 120 | High | Fair | 1931 | Hydroelectric |
| Continental | Colorado | Hinsdale | 120 | High | Satisfactory | 1927 | Irrigation |
| Lake Desmet (North Dam) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Fawn Mine #91 Refuse Impoundment | Pennsylvania | Butler | 120 | High | Fair | - | Other |
| Upper Dam | Georgia | Floyd | 120 | High | Satisfactory | 1995 | Hydroelectric |
| Grayson Dam | Kentucky | Carter | 120 | High | Not Available | 1968 | Flood Risk Reduction |
| Lake Desmet (South Dam) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Lake Brownwood Dam | Texas | Brown | 120 | High | Satisfactory | 1933 | Water Supply |
| Jamie L. Whitten Lock and Dam | Mississippi | Tishomingo | 120 | High | Not Available | 1983 | Navigation |
| Bluecat Lake Dam | Tennessee | Maury | 120 | High | Satisfactory | 1979 | |
| Elizabeth Mine Tp-1 | Vermont | Orange | 120 | High | Satisfactory | 1958 | Tailings |
| Lake Desmet (A,B,C & Spillway Dikes) | Wyoming | Johnson | 120 | High | Fair | 1975 | Water Supply |
| Red Mountain Reservoir | California | San Diego | 120 | High | Satisfactory | 1985 | Water Supply |
| Little Mulberry Creek Site 1 | Arkansas | Crawford | 120 | High | Fair | 1975 | Water Supply |
| Big Creek | California | Tuolumne | 120 | High | Satisfactory | 1969 | Water Supply |
| Edwards Reservoir | California | Santa Barbara | 120 | High | Satisfactory | 1985 | Water Supply |
| Otter Brook Dam | New Hampshire | Cheshire | 119 | High | Not Available | 1958 | Flood Risk Reduction |
| Cecil M. Harden Dam | Indiana | Parke | 119 | High | Not Available | 1960 | Flood Risk Reduction |
| T Or C Site 8c Dam | New Mexico | Sierra | 119 | High | Fair | 1981 | Flood Risk Reduction |
| Lewiston Reservoir Dike | New York | Niagara | 119 | High | Satisfactory | 1963 | Hydroelectric |
| Wylie | South Carolina | York | 119 | High | Satisfactory | 1925 | Hydroelectric |
| Schoens | Arizona | Navajo | 118 | High | Satisfactory | 1988 | Flood Risk Reduction |
| Hog Park Main Dam | Wyoming | Carbon | 118 | High | - | 1986 | Water Supply |
| Lake Gaillard Dam | Connecticut | New Haven | 118 | High | Satisfactory | 1929 | Water Supply |
| North Springfield Dam | Vermont | Windsor | 118 | High | Not Available | 1960 | Flood Risk Reduction |
| Dillon Dam | Ohio | Muskingum | 118 | High | Not Available | 1960 | Flood Risk Reduction |
| Settlement Canyon | Utah | Tooele | 118 | High | Fair | 1966 | Irrigation |
| Cave Buttes | Arizona | Maricopa | 118 | High | Satisfactory | 1980 | Flood Risk Reduction |
| Grassy Lake Dam | Wyoming | Teton | 118 | High | Not Available | 1939 | Irrigation |
| Elwood Dam | Nebraska | Gosper | 118 | High | Satisfactory | 1976 | Irrigation |
| Uvas | California | Santa Clara | 118 | High | Satisfactory | 1957 | Water Supply |
| Dewey Dam | Kentucky | Floyd | 118 | High | Not Available | 1949 | Flood Risk Reduction |
| Massena Intake | New York | St. Lawrence | 118 | High | Satisfactory | 1958 | Hydroelectric |
| John Martin Dam - Fort Lyon Protective Works | Colorado | Bent | 118 | High | Not Available | 1943 | Flood Risk Reduction |
| Upper North River #76 | Virginia | Augusta | 118 | High | Satisfactory | - | Flood Risk Reduction |
| Alpine Lake Dam | Missouri | Warren | 118 | High | Satisfactory | 2000 | Recreation |
| Eramet Waste Retention Dam | Ohio | Washington | 118 | High | Satisfactory | 1982 | Tailings |
| Elkhead Creek | Colorado | Moffat | 118 | High | Satisfactory | 1979 | Fish and Wildlife Pond |
| Two Rivers Diamond A Dam | New Mexico | Chaves | 118 | High | Not Available | 1963 | Flood Risk Reduction |
| Villa Park | California | Orange | 118 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Paint Creek Dam | Ohio | Highland | 118 | High | Not Available | 1973 | Flood Risk Reduction |
| Wirtz Dam | Texas | Burnet | 118 | High | Satisfactory | 1951 | Irrigation |
| Green Verdugo | California | Los Angeles | 118 | High | Satisfactory | 1953 | Water Supply |
| Druid Hill Lake Reservoir and Storage Tanks | Maryland | Baltimore City | 118 | High | Poor | 1871 | Water Supply |
| Farmington Lake Dam | New Mexico | San Juan | 117 | High | Fair | 1964 | Water Supply |
| Macoupin Energy Refuse Disposal Area 6 | Illinois | Macoupin | 117 | High | Not Available | 1991 | Tailings |
| Rio Grande | Colorado | Hinsdale | 117 | High | Satisfactory | 1914 | Irrigation |
| Gunlock | Utah | Washington | 117 | High | Satisfactory | 1970 | Irrigation |
| Rocky Creek-Cedar Creek | South Carolina | Fairfield | 117 | High | Satisfactory | 1909 | Hydroelectric |
| Ash Basin No 3 | Pennsylvania | Snyder | 117 | High | Fair | 1971 | 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.