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 |
|---|---|---|---|---|---|---|---|
| Clevenger Dam | Iowa | Warren | 30 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-87 | Iowa | Appanoose | 30 | Low | Not Rated | 1992 | Flood Risk Reduction |
| Green Dam | Iowa | Polk | 30 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Van Dalen Dam | Iowa | Monroe | 30 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-71a | Iowa | Monroe | 30 | Low | Not Rated | 2010 | Flood Risk Reduction |
| Schultz/Blumer Dam | Iowa | Pottawattamie | 30 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Kirkholm Subwatershed A-3700 | Iowa | Ida | 30 | Low | Not Rated | 1949 | Fire Protection, Stock, Or ... |
| Malcom Dam | Iowa | Poweshiek | 30 | Low | Not Rated | 2006 | Fire Protection, Stock, Or ... |
| Molkenthin Dam | Iowa | Keokuk | 30 | Low | Not Rated | 1975 | Recreation |
| Whispering Pines Dam | Iowa | Audubon | 30 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Schneider Bros Dam | Iowa | Lucas | 30 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 50-2 | Iowa | Audubon | 30 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Courcier Dam | Iowa | Montgomery | 30 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Triplett Dam | Iowa | Polk | 30 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Wayne Co. Roadgrade Dam - Stokes Site | Iowa | Wayne | 30 | Low | Not Rated | 1996 | Other |
| Moulton Watershed Site B-2 | Iowa | Appanoose | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Mc Call Subwatershed Site M-3 | Iowa | Monona | 30 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Willow Creek Subwatershed Site M-3 | Iowa | Woodbury | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 73 | Iowa | Union | 30 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Pleasant Valley Subwtrshd #2 Sta 50+00 | Iowa | Ida | 30 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Larkin Dam | Iowa | Story | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Fulton Dam | Iowa | Lucas | 30 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-102 | Iowa | Wapello | 30 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Hopp Dam (Lower Site) | Iowa | Mills | 30 | Low | Not Rated | 2005 | Grade Stabilization |
| Gray Dam | Iowa | Page | 30 | Low | - | 2021 | Grade Stabilization |
| Gannon Dam | Iowa | Jasper | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Iowa Noname10 | Iowa | Decatur | 30 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Iowa Noname21 | Iowa | Harrison | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Tug Creek Roadgrade - West Dam | Iowa | Van Buren | 30 | Low | Not Rated | 1990 | Other |
| Huseman Dam | Iowa | Madison | 30 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Wilty Dam | Iowa | Davis | 30 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Duffield Dam | Iowa | Davis | 30 | Low | Not Rated | 1982 | Fire Protection, Stock, Or ... |
| Hansen Farms Dam | Iowa | Ringgold | 30 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Van Donselar Dam | Iowa | Mahaska | 30 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Tjaden Dam | Iowa | Hardin | 30 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Elliott Dam | Iowa | Story | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Chappel Studio Pond Dam | Iowa | Jefferson | 30 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Lee Dam | Iowa | Lyon | 30 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Johnston Dam | Iowa | Jasper | 30 | Significant | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Beinhart Dam | Iowa | Washington | 30 | Low | - | 2023 | Grade Stabilization |
| Ford Dam | Iowa | Warren | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Ludwig Dam | Iowa | Warren | 30 | Low | Not Rated | 2002 | Recreation |
| Mc Clellan/Leichty Dam | Iowa | Lee | 30 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Dittmer Dam | Iowa | Warren | 30 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Marak Dam | Iowa | Johnson | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Little River Watershed Site 51-1 | Iowa | Decatur | 30 | Significant | Satisfactory | 2005 | Recreation |
| Soap Creek Watershed Site 68-32 | Iowa | Monroe | 30 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Matthew Brown | Iowa | Union | 30 | Low | - | 2018 | Grade Stabilization |
| Marsh Dam | Iowa | Taylor | 30 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Croy Subwatershed Site G3-2730 | Iowa | Monona | 30 | Low | Not Rated | 1951 | 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.