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 |
|---|---|---|---|---|---|---|---|
| Crawford County Roadgrade Dam 27-83-38 | Iowa | Crawford | 39 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Posten Dam | Iowa | Page | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| West Douglas Watershed Site L-6 | Iowa | Adams | 39 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site C-12-2 | Iowa | Monona | 39 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Pierce Cr. No. 2 Site H-1 | Iowa | Page | 39 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-14 | Iowa | Crawford | 39 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site M-2 | Iowa | Fremont | 39 | Low | Not Rated | 1973 | Water Supply |
| Gray Dam | Iowa | Montgomery | 39 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Henter Dam | Iowa | Madison | 39 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site D-4 | Iowa | Crawford | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Miller Dam | Iowa | Iowa | 39 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Reed Dam | Iowa | Clarke | 39 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-1-6 | Iowa | Crawford | 39 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Zellmer Subwtrshd #M 106+26 | Iowa | Woodbury | 39 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Timm Dam | Iowa | Crawford | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Roy/Kemmish Dam | Iowa | Harrison | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Iowa Noname84 | Iowa | Washington | 39 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| White Oak Lake Dam | Iowa | Mahaska | 39 | Significant | Satisfactory | 1983 | Recreation |
| Windy Hill Subwatershed Site 2-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 18 | Iowa | Montgomery | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site K-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1976 | Flood Risk Reduction |
| Vanatta Dam | Iowa | Fremont | 38 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Lake Ellis Dam | Iowa | Lucas | 38 | Significant | Fair | 1993 | Water Supply |
| Muscatine County Roadgrade Dam 14-77-1e | Iowa | Muscatine | 38 | Significant | Fair | 1971 | Other |
| Grundle Dam | Iowa | Fremont | 38 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-22-13 | Iowa | Shelby | 38 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Lindberg Dam | Iowa | Wapello | 38 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Theobold Subwatershed 6975 | Iowa | Woodbury | 38 | Low | Not Rated | 1948 | Fire Protection, Stock, Or ... |
| Little Beaver Subwatershed M-10001 | Iowa | Woodbury | 38 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Held Watershed Site A-3 | Iowa | Plymouth | 38 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Wayne Co. Roadgrade Dam - Bellen Site | Iowa | Wayne | 38 | Low | Not Rated | 1996 | Other |
| Stennett-Red Oak Watershed Site 3 | Iowa | Montgomery | 38 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 42-2 | Iowa | Audubon | 38 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 53-3 | Iowa | Cass | 38 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Brauninger Dam | Iowa | Woodbury | 38 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Southfork Dam | Iowa | Dallas | 38 | High | Satisfactory | 1988 | Other |
| Gant Creek Watershed Site B-1 | Iowa | Plymouth | 38 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mc Aninch Dam | Iowa | Warren | 38 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Campbell Dam | Iowa | Ida | 38 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site M-5 | Iowa | Fremont | 38 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Pierce Cr. No. 2 Site L-2 | Iowa | Page | 38 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Kruger Dam | Iowa | Greene | 38 | Low | Not Rated | 2013 | Flood Risk Reduction |
| Twelve Mile Creek Watershed Site D-35 | Iowa | Union | 38 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Harkrader Dam | Iowa | Dallas | 38 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Willow Creek Subwatershed Site M-2 | Iowa | Woodbury | 38 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Mucky Creek Subwatershed Site 6-1 | Iowa | Monona | 38 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Wunschel Dam | Iowa | Ida | 38 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Mucky Creek Subwatershed Sta 41+70 | Iowa | Monona | 38 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Judge Dam | Iowa | Tama | 38 | Low | Not Rated | 1955 | Recreation |
| Rooks Dam | Iowa | Hardin | 38 | Low | Not Rated | 1959 | 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.