Browse Dams
4,128 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 4,128 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 |
|---|---|---|---|---|---|---|---|
| Simon Run Watershed Site 4-2 | Iowa | Pottawattamie | 41 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Collier Dam | Iowa | Harrison | 41 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Crawford CO Roadgrade Dam 34-84-39 | Iowa | Crawford | 41 | Low | Not Rated | 2002 | Grade Stabilization |
| Polk County Roadgrade Dam 21-78-22 | Iowa | Polk | 41 | Low | Not Rated | 1992 | Other |
| Gross/Freund Dam | Iowa | Shelby | 41 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Simpson Creek Watershed Site 4 | Iowa | Fremont | 41 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Hound Dog Watershed Site B-1 | Iowa | Fremont | 41 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Schoenewe Dam | Iowa | Des Moines | 41 | High | Poor | 1978 | Recreation |
| Long Dam | Iowa | Warren | 41 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Cleveland Dam | Iowa | Harrison | 41 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Focht & Schindel Dam | Iowa | Plymouth | 41 | High | Fair | 1970 | Fire Protection, Stock, Or ... |
| West Lakes Office Park Dam | Iowa | Polk | 41 | High | Satisfactory | 1990 | Flood Risk Reduction |
| Blockton Watershed Site S-5 | Iowa | Taylor | 41 | Significant | Satisfactory | 1993 | Flood Risk Reduction |
| Sioux Rapids Golf Club Dam | Iowa | Buena Vista | 41 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Marion County Roadgrade Dam 17-76-18 | Iowa | Marion | 40 | Significant | Poor | 1965 | Other |
| Foix Dam | Iowa | Woodbury | 40 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Page | 40 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site G-1 | Iowa | Monona | 40 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Dakins Lake Dam | Iowa | Story | 40 | Significant | Fair | 2014 | Recreation |
| Soap Creek Watershed Site 26-55 | Iowa | Davis | 40 | Low | Not Rated | 2007 | Grade Stabilization |
| Thompson Dam | Iowa | Pottawattamie | 40 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Barr Dam | Iowa | Montgomery | 40 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison Watershed Site 7-4 | Iowa | Harrison | 40 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| White Dam | Iowa | Des Moines | 40 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Louisa County Raodgrade Dam 36-73-3 | Iowa | Louisa | 40 | Low | Not Rated | 2002 | Grade Stabilization |
| Mill Picayune Watershed Site N-13-2 | Iowa | Harrison | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Wohlers Dam | Iowa | Pottawattamie | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Crawford Creek Subwatershed Site 13f-1 | Iowa | Ida | 40 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-27-1 | Iowa | Crawford | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-24-17 | Iowa | Shelby | 40 | Significant | Satisfactory | 1984 | Fire Protection, Stock, Or ... |
| Mount Ayr Reservoir Dam | Iowa | Ringgold | 40 | Significant | Fair | 1930 | Water Supply |
| Walling Subwatershed Sta 99+70 #1 | Iowa | Woodbury | 40 | Low | Not Rated | 1953 | Other |
| Waubonsie Cr. Watershed Site 39 | Iowa | Mills | 40 | Low | Not Rated | 1983 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-24-2 | Iowa | Crawford | 40 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Van Sickle Dam | Iowa | Boone | 40 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Waterford Pond Dam | Iowa | Polk | 40 | Low | Fair | 1966 | Fire Protection, Stock, Or ... |
| Springbrook Lake Dam | Iowa | Guthrie | 40 | Significant | Satisfactory | 1934 | Recreation |
| Fairfield Water Works Dam No 1 | Iowa | Jefferson | 40 | Significant | Satisfactory | 1888 | Water Supply |
| College Corner Subwatershed Site 4-5 | Iowa | Woodbury | 40 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-57a | Iowa | Appanoose | 40 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Dawson Dam | Iowa | Des Moines | 40 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Baker Subwatershed Site 5-3 | Iowa | Monona | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Leech Hollow Subwatershed Site C-11 | Iowa | Monona | 40 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 24 | Iowa | Mills | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Vande Stroet Dam | Iowa | Sioux | 40 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mc Fadden Dam | Iowa | Clarke | 40 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Bitter Creek Subwatershed Site 1-1 | Iowa | Ida | 40 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| South Hungerford 2 Watershed Site 11 | Iowa | Plymouth | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site M-17052 | Iowa | Woodbury | 40 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Van Hall Dam | Iowa | Marion | 40 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
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.