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 |
|---|---|---|---|---|---|---|---|
| Berg Dam | Iowa | Keokuk | 29 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Courtney Dam | Iowa | Boone | 29 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Richardson Dam | Iowa | Decatur | 29 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Arco Dam | Iowa | Dickinson | 29 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Branhagen Dam | Iowa | Winneshiek | 29 | Low | — | 2021 | Fish and Wildlife Pond |
| Blair - Stoelk Dam | Iowa | Crawford | 29 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Rathbun Farms Dam | Iowa | Wayne | 29 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Maynes Grove South Dam | Iowa | Franklin | 29 | Low | Not Rated | 1992 | Recreation |
| Grap Dam | Iowa | Harrison | 29 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Cunard Dam | Iowa | Harrison | 29 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Brockman Dam | Iowa | Page | 29 | Low | — | 2024 | Grade Stabilization |
| High Prairie Farms Dam | Iowa | Clarke | 29 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Iowa Noname59 | Iowa | Wayne | 29 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Knapp Dam | Iowa | Ringgold | 29 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Rankins Brothers Dam | Iowa | Jasper | 29 | Significant | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Bristow Dam | Iowa | Humboldt | 29 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Iowa Gun Dog Dam | Iowa | Clarke | 29 | Low | — | 2020 | Grade Stabilization |
| Phillips Dam | Iowa | Dubuque | 29 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Richard Hanrahan Dam | Iowa | Madison | 29 | Low | — | 2018 | Grade Stabilization |
| Hahn/Linnenkamp Dam | Iowa | Keokuk | 29 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Mill Creek Lake Dam | Iowa | O'Brien | 29 | Low | Satisfactory | 1934 | Recreation |
| Iowa Noname91 | Iowa | Des Moines | 29 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Washington County Cons Bd Dam | Iowa | Washington | 29 | Low | Not Rated | 2000 | Grade Stabilization |
| Afmscs Subwatershed Site 22 | Iowa | Cherokee | 29 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Wilson Lake Dam | Iowa | Taylor | 29 | Low | Not Rated | 1967 | Recreation |
| Hayes Cattle Company Dam | Iowa | Union | 29 | Low | — | 2017 | Grade Stabilization |
| Moorhead Pioneer Park Dam | Iowa | Allamakee | 29 | Low | Satisfactory | 1965 | Fire Protection, Stock, Or ... |
| Thf Stormwater Detention Dam | Iowa | Scott | 29 | Low | Not Rated | 2000 | Flood Risk Reduction |
| Union Grove Lake Dam | Iowa | Tama | 29 | Significant | Fair | 1920 | Recreation |
| Weber Creek Subwatershed Site M-9000 | Iowa | Woodbury | 29 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Hickory Hills Recreation Dam | Iowa | Tama | 29 | Low | Satisfactory | 1970 | Recreation |
| Turkey Cr Watershed Site 49 | Iowa | Cass | 29 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Hacklebarney - Goodemote Dam | Iowa | Montgomery | 29 | Low | Not Rated | 2005 | Grade Stabilization |
| Baker Subwatershed Site 2-4 | Iowa | Monona | 29 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Iowa Noname60 | Iowa | Woodbury | 29 | Significant | Not Rated | 1964 | Recreation |
| Monona County Roadgrade Dam 23-82-43 | Iowa | Monona | 29 | Low | Not Rated | 1988 | Other |
| Belva-Deer Park Sediment Dam | Iowa | Keokuk | 29 | Low | Not Rated | 1974 | Recreation |
| Troublesome Cr Watershed Site 27-1 | Iowa | Cass | 29 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 4 | Iowa | Montgomery | 29 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Valley View Heights Dam | Iowa | Johnson | 29 | Low | Not Rated | 1976 | Recreation |
| Washington CO Road Dam 22-74-9 | Iowa | Washington | 29 | Low | Not Rated | 2005 | Grade Stabilization |
| Big Wyacondah Watershed Site 21c | Iowa | Davis | 29 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Big Wyacondah Watershed Site 28 | Iowa | Davis | 29 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Perion Subwatershed Site Aa-300 | Iowa | Ida | 29 | Low | Not Rated | 1949 | Fire Protection, Stock, Or ... |
| Mcclure Trust Dam | Iowa | Davis | 29 | Low | Not Rated | 2016 | Flood Risk Reduction |
| Turkey Creek Watershed Site 53-5 | Iowa | Cass | 29 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Stump Lake | Iowa | Des Moines | 29 | Low | Satisfactory | 1941 | Recreation |
| Mc Dowell Lake Dam 2 | Iowa | Lee | 29 | Significant | Fair | 1967 | Recreation |
| Jasper County Dam 26-80-17 | Iowa | Jasper | 29 | Low | Not Rated | 1997 | Recreation |
| College Corner Subwatershed Site 4-3 | Iowa | Woodbury | 29 | Low | Not Rated | 1967 | 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.