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 |
|---|---|---|---|---|---|---|---|
| East Fork Grand River Watershed Site D-66 | Iowa | Ringgold | 23 | Low | Not Rated | 2008 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site W-35 | Iowa | Ringgold | 23 | Low | Not Rated | 2001 | Grade Stabilization |
| Soap Creek Watershed Site 4-109 | Iowa | Appanoose | 23 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 66 | Iowa | Adair | 23 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| West Fk Big Cr Watershed Site W-2 | Iowa | Ringgold | 23 | Low | Not Rated | 2005 | Flood Risk Reduction |
| East Fork Grand River Wtaershed Site D-71 | Iowa | Ringgold | 23 | Low | Not Rated | 2002 | Grade Stabilization |
| East Fork Grand River Watershed Site D-36 | Iowa | Ringgold | 23 | Low | Not Rated | 2008 | Flood Risk Reduction |
| West Fork Big Creek Wtrshd Site B-11 | Iowa | Ringgold | 23 | Low | Not Rated | 2005 | Flood Risk Reduction |
| East Fork Grand River Watershed Site D-56 | Iowa | Ringgold | 23 | Low | Not Rated | 2007 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site S-12 | Iowa | Decatur | 23 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-87 | Iowa | Wapello | 23 | Low | Not Rated | 1994 | Other |
| Upper Locust Creek Watershed Site L-33 | Iowa | Wayne | 23 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Big Wyacondah Watershed Site 27-H-1 | Iowa | Davis | 23 | Low | Not Rated | 1963 | Other |
| East Fork Grand River Watershed Site D-54 | Iowa | Ringgold | 23 | Low | Not Rated | 2002 | Grade Stabilization |
| Soap Creek Watershed Site 68-62 | Iowa | Monroe | 23 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Three Mile Creek Watershed Site U-3 | Iowa | Union | 23 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Wtrshd Site Z-5-2 | Iowa | Decatur | 23 | Low | Not Rated | 2003 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-53 | Iowa | Union | 23 | Low | Not Rated | 2008 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-52 | Iowa | Ringgold | 23 | Low | Not Rated | 2002 | Grade Stabilization |
| Three Mile Creek Watershed Site 14-P | Iowa | Union | 23 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 72-2 | Iowa | Union | 23 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site W-6 | Iowa | Ringgold | 23 | Low | Not Rated | 2000 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-71 | Iowa | Ringgold | 23 | Low | Not Rated | 2006 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-93 | Iowa | Ringgold | 23 | Low | Not Rated | 2008 | Flood Risk Reduction |
| East Fork Big Cr Watershed Site E-12 | Iowa | Decatur | 23 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Watershed Site E-18 | Iowa | Decatur | 23 | Low | Not Rated | 1990 | Flood Risk Reduction |
| East Fork Big Cr Watershed Site E-17 | Iowa | Decatur | 23 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Upper Locust Creek Watershed Site L-40 | Iowa | Wayne | 23 | Low | Not Rated | 2007 | Flood Risk Reduction |
| East Fork Grand River Watershed Site D-48 | Iowa | Ringgold | 23 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Tyer Dam | Iowa | Woodbury | 22 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Bodkins Dam | Iowa | Davis | 22 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Dory Dam | Iowa | Union | 22 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Greenberg Dam | Iowa | Ringgold | 22 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Bishop Dam | Iowa | Jefferson | 22 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Sponsler Dam | Iowa | Clarke | 22 | Low | Not Rated | 2008 | Fire Protection, Stock, Or ... |
| Rohwer Dam | Iowa | Pottawattamie | 22 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Moran Dam | Iowa | Pottawattamie | 22 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Draper Dam | Iowa | Fremont | 22 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Stober Dam | Iowa | Davis | 22 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Swan Dam | Iowa | Jefferson | 22 | Low | Not Rated | 2004 | Grade Stabilization |
| Hudnutt Dam | Iowa | Poweshiek | 22 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Godfrey Dam | Iowa | Marshall | 22 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Freiler Dam | Iowa | Guthrie | 22 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Hays Dam | Iowa | Johnson | 22 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Edel Dam | Iowa | Mahaska | 22 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Stevenson Dam | Iowa | Henry | 22 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Riordan Dam | Iowa | Monroe | 22 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Iowa Noname14 | Iowa | Fremont | 22 | Low | Not Rated | 1961 | Recreation |
| Mc Carroll Dam | Iowa | Wapello | 22 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Felton Dam | Iowa | Warren | 22 | Low | Not Rated | 1966 | 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.