Browse Dams
16,901 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 16,901 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 |
|---|---|---|---|---|---|---|---|
| Prompton Dam | Pennsylvania | Wayne | 140 | High | Not Available | 1961 | Flood Risk Reduction |
| Davis County -Barton Creek Db | Utah | Davis | 140 | High | Fair | 1984 | Flood Risk Reduction |
| Sweetwater Lake Dam | Indiana | Brown | 140 | High | Fair | 1965 | Recreation |
| Caneadea Dam | New York | Allegany | 140 | High | Fair | 1929 | Recreation |
| Bliss | Idaho | Gooding | 140 | High | Satisfactory | 1950 | Hydroelectric |
| Tallulah Falls | Georgia | Rabun | 140 | High | Satisfactory | 1913 | Hydroelectric |
| Marge Schott Lake Dam | Ohio | Clermont | 140 | High | Satisfactory | 2000 | Recreation |
| Bear Swamp - South Dike | Massachusetts | Franklin | 140 | High | Satisfactory | 1974 | Hydroelectric |
| Gene Wash | California | San Bernardino | 140 | High | Satisfactory | 1937 | Water Supply |
| Coyote | California | Santa Clara | 140 | High | Poor | 1936 | Water Supply |
| Magnetite Tailings Dam | New Mexico | Grant | 140 | High | Satisfactory | 1980 | Tailings |
| Relief | California | Tuolumne | 140 | High | Poor | 1909 | Hydroelectric |
| East Fork (Tannasee Creek) | North Carolina | Jackson | 140 | High | Satisfactory | 1955 | Hydroelectric |
| Mountain Island | North Carolina | Gaston | 140 | High | Fair | 1923 | Hydroelectric |
| Robert Lee Dam | Texas | Coke | 140 | High | Fair | 1969 | Water Supply |
| Icon Materials Pond 4 | Washington | King | 140 | High | Fair | 1997 | Water Supply |
| Possum Point Ash Dam #D | Virginia | Prince William | 140 | High | Satisfactory | — | Debris Control |
| Mississinewa Dam | Indiana | Miami | 140 | High | Not Available | 1967 | Flood Risk Reduction |
| Hazel Creek W/S Str. #12 | Georgia | Habersham | 139 | High | Fair | 1962 | Flood Risk Reduction |
| T. Howard Duckett Dam | Maryland | Howard | 139 | High | Fair | 1953 | Water Supply |
| Stony Gorge Dam | California | Glenn | 139 | High | Not Available | 1928 | Water Supply |
| East Park Dam | California | Colusa | 139 | High | Not Available | 1910 | Irrigation |
| Fontenelle Dam | Wyoming | Lincoln | 139 | High | Not Available | 1964 | Fish and Wildlife Pond |
| Frenchman | California | Plumas | 139 | High | Satisfactory | 1961 | Water Supply |
| Goose Creek Lake Dam | Missouri | Ste. Genevieve | 139 | High | Satisfactory | 1986 | Recreation |
| Palo Duro Dam | Texas | Hansford | 139 | High | Satisfactory | 1991 | Water Supply |
| Claytor | Virginia | Pulaski | 139 | High | Satisfactory | 1939 | Hydroelectric |
| Ward Impoundment (Upper) Dam | West Virginia | Kanawha | 139 | High | Satisfactory | 1965 | Tailings |
| Scott | California | Lake | 138 | High | Fair | 1921 | Hydroelectric |
| Cooper Dev - Pinopolis Dam | South Carolina | Berkeley | 138 | High | Fair | 1942 | Flood Risk Reduction |
| Ash Creek | Utah | Washington | 138 | High | Fair | 1960 | Irrigation |
| Shepaug | Connecticut | New Haven | 138 | High | Satisfactory | 1955 | Hydroelectric |
| Costilla Dam | New Mexico | Taos | 138 | High | Fair | 1920 | Irrigation |
| Huffaker Effluent Storage Reservoir Dam | Nevada | Washoe | 138 | High | Fair | 1992 | Other |
| Shelbyville Dam | Illinois | Shelby | 138 | High | Not Available | 1970 | Flood Risk Reduction |
| Thomaston Dam | Connecticut | Litchfield | 137 | High | Not Available | 1960 | Flood Risk Reduction |
| Grapevine Dam | Texas | Tarrant | 137 | High | Not Available | 1952 | Flood Risk Reduction |
| Sanchez | Colorado | Costilla | 137 | High | Unsatisfactory | 1911 | Irrigation |
| Saville Dam | Connecticut | Litchfield | 137 | High | Satisfactory | 1940 | Water Supply |
| Guernsey Dam | Wyoming | Platte | 137 | High | Not Available | 1927 | Hydroelectric |
| Oologah Dam | Oklahoma | Rogers | 137 | High | Not Available | 1963 | Flood Risk Reduction |
| Lauro Dam | California | Santa Barbara | 137 | High | Not Available | 1952 | Water Supply |
| Wilson Dam | Alabama | Lauderdale | 137 | High | Not Available | 1924 | Flood Risk Reduction |
| Pineview Dam | Utah | Weber | 137 | High | Not Available | 1937 | Irrigation |
| Santiago Creek | California | Orange | 136 | High | Poor | 1933 | Water Supply |
| Ash Basin No 2 | Pennsylvania | Snyder | 136 | High | Fair | 1955 | Other |
| Tabeaud | California | Amador | 136 | High | Poor | 1901 | Hydroelectric |
| South Forebay Dike | New York | St. Lawrence | 136 | High | Satisfactory | 1958 | Hydroelectric |
| Buffalo Bill-Diamond Creek Dike | Wyoming | Park | 136 | High | Not Available | 1905 | Fish and Wildlife Pond |
| Willow Creek | Montana | Big Horn | 136 | High | Fair | 1941 | Irrigation |
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.