Browse Dams
12,908 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 12,908 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 |
|---|---|---|---|---|---|---|---|
| Dam A | Georgia | Floyd | 94 | High | Satisfactory | 1992 | Hydroelectric |
| Lower Chase Creek | Arizona | Greenlee | 94 | High | Satisfactory | 1987 | Other |
| Conowingo | Maryland | Cecil | 94 | High | Satisfactory | 1928 | Hydroelectric |
| South Fork No.15 | West Virginia | Pendleton | 93 | High | Satisfactory | 1970 | Flood Risk Reduction |
| Lake Chamberlain Dam | Connecticut | New Haven | 93 | High | Satisfactory | 1890 | Water Supply |
| Cedar Creek | Montana | Flathead | 93 | High | Satisfactory | 1971 | Water Supply |
| East Fork Dam | Montana | Fergus | 93 | High | Satisfactory | 1974 | Recreation |
| Lake Mescalero | New Mexico | Otero | 93 | High | Satisfactory | 1974 | Recreation |
| Alisal Creek | California | Santa Barbara | 93 | High | Satisfactory | 1971 | Water Supply |
| Canon Wtrsd C-3 | Colorado | Fremont | 93 | High | Satisfactory | 1972 | Flood Risk Reduction |
| Buzzards Roost Spillway | South Carolina | Newberry | 93 | High | Satisfactory | 1940 | Hydroelectric |
| Lower North River # 83 | Virginia | Rockingham | 93 | High | Satisfactory | - | Flood Risk Reduction |
| Riss Lake Dam | Missouri | Platte | 93 | High | Satisfactory | 1953 | Recreation |
| Stingy Run Fly Ash Dam | Ohio | Gallia | 93 | High | Satisfactory | 1974 | Tailings |
| Tongue River Dam | Montana | Big Horn | 93 | High | Satisfactory | 1939 | Irrigation |
| Washakie | Wyoming | Fremont | 93 | High | Satisfactory | 1935 | Irrigation |
| Moshier | New York | Herkimer | 93 | High | Satisfactory | 1930 | Hydroelectric |
| Grandview Lake Dam | Georgia | Pickens | 93 | High | Satisfactory | 1946 | Recreation |
| Reservoir A | California | Placer | 93 | High | Satisfactory | 1973 | Water Supply |
| Lake Michie Dam | North Carolina | Durham | 92 | High | Satisfactory | 1926 | Other |
| Beaver Run | Pennsylvania | Westmoreland | 92 | High | Satisfactory | 1952 | Water Supply |
| Yonah | South Carolina | Oconee | 92 | High | Satisfactory | 1925 | Hydroelectric |
| Big Quinnesec Falls | Wisconsin | Marinette | 92 | High | Satisfactory | 1949 | Hydroelectric |
| J.T. Haynes Reservoir Dam | Georgia | Coweta | 92 | High | Satisfactory | - | Recreation |
| East Branch Flood Control Dam | Connecticut | Litchfield | 92 | High | Satisfactory | - | Flood Risk Reduction |
| Moyie | Idaho | Boundary | 92 | High | Satisfactory | 1949 | Hydroelectric |
| Thomas W Koon | Pennsylvania | Bedford | 92 | High | Satisfactory | 1932 | Water Supply |
| Deer Creek Diversion | California | Nevada | 92 | High | Satisfactory | 1928 | Debris Control |
| Patterson Creek No.15 | West Virginia | Mineral | 92 | High | Satisfactory | 1965 | Flood Risk Reduction |
| Coyote Creek | California | Lake | 92 | High | Satisfactory | 1968 | Water Supply |
| Flambeau | Wisconsin | Rusk | 92 | High | Satisfactory | 1951 | Hydroelectric |
| Wateree | South Carolina | Kershaw | 92 | High | Satisfactory | 1919 | Hydroelectric |
| North Potato Creek Dam | Tennessee | Polk | 92 | High | Satisfactory | 1979 | |
| Weber | California | El Dorado | 92 | High | Satisfactory | 1924 | Water Supply |
| Smith and Morehouse | Utah | Summit | 92 | High | Satisfactory | 1987 | Irrigation |
| North Fork of Smith River Dam | Montana | Meagher | 91 | High | Satisfactory | 1936 | Irrigation |
| South Creek - Washington County | Utah | Washington | 91 | High | Satisfactory | 1988 | Irrigation |
| Timber Creek Mpd No 29 | Kansas | Cowley | 91 | High | Satisfactory | 1970 | Flood Risk Reduction |
| Floodwater Ret. B-5 | Colorado | Larimer | 91 | Significant | Satisfactory | 1977 | Flood Risk Reduction |
| Enterprise (Upper) | Utah | Washington | 91 | High | Satisfactory | 1912 | Irrigation |
| Thermalito Forebay | California | Butte | 91 | High | Satisfactory | 1967 | Hydroelectric |
| Pogo R.T.P. Dam | Alaska | Southeast Fairbanks Census Area | 91 | High | Satisfactory | 2005 | Flood Risk Reduction |
| Maple Creek Slurry Pond No 2 - A | Pennsylvania | Washington | 91 | High | Satisfactory | 1978 | Other |
| Joe B Hogsett Dam | Texas | Henderson | 91 | High | Satisfactory | 1966 | Irrigation |
| Wheeler Branch Dam | Texas | Somervell | 91 | High | Satisfactory | 2008 | Irrigation |
| Martinsdale, North Dam | Montana | Wheatland | 91 | High | Satisfactory | 1939 | Irrigation |
| Fish Barrier | California | Butte | 91 | Low | Satisfactory | 1964 | Water Supply |
| Upper Shepaug Dam | Connecticut | Litchfield | 90 | High | Satisfactory | 1965 | Water Supply |
| Emerald No. 1 Back Valley Western | Pennsylvania | Greene | 90 | High | Satisfactory | - | Other |
| Ozark Water Supply Lake Dam | Arkansas | Franklin | 90 | Significant | Satisfactory | 1971 | 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.