Browse Dams
13,006 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 13,006 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 |
|---|---|---|---|---|---|---|---|
| Gann Lake Dam | Missouri | Johnson | 43 | Low | Satisfactory | 1972 | Recreation |
| Waubonsie Cr. Watershed Site 3 | Iowa | Mills | 43 | Significant | Satisfactory | 1994 | Fire Protection, Stock, Or ... |
| Elkhorn Dam | Virginia | Pittsylvania | 43 | Significant | Satisfactory | — | Recreation |
| Swan Creek 67 | Nebraska | Saline | 43 | Low | Satisfactory | 1988 | Flood Risk Reduction |
| Newnan Waterworks Dam # 5 | Georgia | Coweta | 43 | High | Satisfactory | 1976 | Water Supply |
| Lake Forest Dam #2 | Missouri | Jefferson | 43 | Significant | Satisfactory | — | |
| Papio Creek D-18 | Nebraska | Douglas | 43 | Low | Satisfactory | 1990 | Other |
| Lake Hollenbeck Dam | Missouri | Cape Girardeau | 43 | High | Satisfactory | 1964 | Recreation |
| Barr Lake | Colorado | Adams | 43 | High | Satisfactory | 1893 | Irrigation |
| J.W. Smith Reservoir Dam | Georgia | Clayton | 43 | High | Satisfactory | 1984 | Water Supply |
| Silver Lake | California | Los Angeles | 43 | High | Satisfactory | 1976 | Water Supply |
| La Plata New City Dam | Missouri | Macon | 43 | Low | Satisfactory | 1980 | Water Supply |
| Salt Lick Creek No. 4 Dam | West Virginia | Braxton | 43 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Diamondhead Lake Dam | Iowa | Guthrie | 43 | Significant | Satisfactory | 1963 | Recreation |
| Lac Bourbon Dam | Missouri | St. Francois | 43 | High | Satisfactory | 1971 | Recreation |
| Glen Lyn Fly Ash Dam | Virginia | Giles | 43 | High | Satisfactory | — | Other |
| Siegel Flood Control Dam | Iowa | Clayton | 43 | High | Satisfactory | 1938 | Flood Risk Reduction |
| York Bldg Products Settling Pond 9 | Maryland | Cecil | 43 | Significant | Satisfactory | 1988 | Tailings |
| Broz Lake Dam | Missouri | Montgomery | 43 | High | Satisfactory | 1975 | Irrigation |
| Crystal Lake | Alaska | Petersburg Borough | 43 | High | Satisfactory | 1955 | Hydroelectric |
| Milstead | Georgia | Rockdale | 43 | Low | Satisfactory | 1925 | Hydroelectric |
| Cottonwood Creek 42-A | Nebraska | Saunders | 43 | Low | Satisfactory | 1967 | Flood Risk Reduction |
| Laguna Regulating Basin | California | Los Angeles | 43 | Significant | Satisfactory | 1970 | Flood Risk Reduction |
| Cold River Site 1 Dam | New Hampshire | Carroll | 43 | High | Satisfactory | 1969 | Flood Risk Reduction |
| Upper Tri-County Wid Site 14a | Arkansas | Sharp | 43 | Low | Satisfactory | 1983 | Flood Risk Reduction |
| Otter Creek | Utah | Piute | 43 | High | Satisfactory | 1897 | Irrigation |
| Manito Dam | Missouri | Moniteau | 43 | High | Satisfactory | 1984 | Recreation |
| Axell | California | Sonoma | 43 | High | Satisfactory | 1952 | Water Supply |
| Lake John | Minnesota | Yellow Medicine | 43 | Significant | Satisfactory | 1981 | Flood Risk Reduction |
| Laurel Lake Dam | Virginia | Dickenson | 43 | Undetermined | Satisfactory | 1963 | Recreation |
| Fairmount Reservoir | Colorado | Jefferson | 43 | High | Satisfactory | 1993 | Water Supply |
| Bellwood 5-G | Nebraska | Butler | 43 | Low | Satisfactory | 1965 | Flood Risk Reduction |
| Easter Lake Dam | Iowa | Polk | 43 | Significant | Satisfactory | 1967 | Recreation |
| Sugar Hollow Dam | Missouri | Warren | 43 | High | Satisfactory | 1968 | Recreation |
| Oak Site | California | Santa Cruz | 43 | Low | Satisfactory | 1969 | Water Supply |
| Lake Timber Ridge Dam | Missouri | Gasconade | 43 | High | Satisfactory | 1971 | Recreation |
| Stanley Schaeffer Dam | Texas | Randall | 43 | High | Satisfactory | 1975 | Irrigation |
| Lovers Leap Cat Dam | Nebraska | Banner | 43 | Low | Satisfactory | 1986 | Flood Risk Reduction |
| Polk Creek No.6 | West Virginia | Lewis | 43 | High | Satisfactory | 1966 | Flood Risk Reduction |
| Happy Holler Dam | Missouri | Andrew | 43 | High | Satisfactory | 1995 | Recreation |
| Sand Creek 16 | Nebraska | Saunders | 43 | Low | Satisfactory | 2012 | Flood Risk Reduction |
| Dunsmuir Reservoir | California | Alameda | 43 | High | Satisfactory | 1968 | Water Supply |
| Floodwater Ret Dam Ss-7 | Colorado | Sedgwick | 43 | Low | Satisfactory | 1982 | Flood Risk Reduction |
| E. Beckwith #1 | Colorado | Gunnison | 43 | Low | Satisfactory | 1935 | Irrigation |
| Goshen Dam | Virginia | Rockbridge | 43 | High | Satisfactory | — | Recreation |
| Blanco Reservoir Dam | New Mexico | San Juan | 43 | High | Satisfactory | 1957 | Other |
| Del-Co Upland Storage Reservoir No. 2 | Ohio | Delaware | 43 | High | Satisfactory | 1989 | Water Supply |
| Beaver Lake Dam | Iowa | Dallas | 43 | Significant | Satisfactory | 1990 | Recreation |
| Mountain Run Dam #18 | Virginia | Culpeper | 43 | High | Satisfactory | — | Flood Risk Reduction |
| Big Spring | Pennsylvania | Westmoreland | 43 | High | Satisfactory | 1907 | 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.