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 |
|---|---|---|---|---|---|---|---|
| Knoxville Pond Dam | Iowa | Marion | 31 | Low | Not Rated | 1961 | Recreation |
| Skubal Dam | Iowa | Washington | 31 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Young Dam | Iowa | Polk | 31 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Iowa Noname97 | Iowa | Johnson | 31 | Low | Not Rated | 1991 | Debris Control |
| Otte Dam | Iowa | Lee | 31 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Sloan Dam | Iowa | Davis | 31 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Reel Dam | Iowa | Van Buren | 31 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Vander Linden Dam | Iowa | Warren | 31 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Justice Dam | Iowa | Clarke | 31 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Scnoenjahn Dam | Iowa | Monona | 31 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| General Manufacturing Dam | Iowa | Warren | 31 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Treynor Farm Supply Dam | Iowa | Pottawattamie | 31 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| England Dam | Iowa | Wapello | 31 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site N-13-1 | Iowa | Harrison | 31 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Baker Dam | Iowa | Poweshiek | 31 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Mchugh Dam | Iowa | Monona | 31 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Three Mile Creek Watershed Site 9 | Iowa | Union | 31 | Low | Not Rated | 1970 | Other |
| Lyon County Roadgrade Dam 10-98-48 | Iowa | Lyon | 31 | Low | Not Rated | 1988 | Other |
| Weimann Dam | Iowa | Audubon | 31 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-112 | Iowa | Appanoose | 31 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Rasmussen Dam | Iowa | Polk | 31 | Low | Not Rated | 2006 | Fire Protection, Stock, Or ... |
| Heston/Johnson Dam | Iowa | Lucas | 31 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mc Clendon Dam | Iowa | Harrison | 31 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Burgher Dam | Iowa | Appanoose | 31 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Gerlach Dam | Iowa | Buena Vista | 31 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site S-36-1 | Iowa | Harrison | 31 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| C & W Investments | Iowa | Appanoose | 31 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Jorgensen Dam | Iowa | Guthrie | 31 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Pierce Dam | Iowa | Lucas | 31 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Klopping Dam | Iowa | Jasper | 31 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-42 | Iowa | Ringgold | 31 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Kuhl Dam | Iowa | Union | 31 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Shipley Dam | Iowa | Montgomery | 31 | Low | — | 2023 | Grade Stabilization |
| Sulsberger Dam | Iowa | Woodbury | 31 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Mc Clintic Dam | Iowa | Polk | 31 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Humeston Reservoir Dam | Iowa | Wayne | 31 | Significant | Poor | 1916 | Water Supply |
| Hawkins Dam | Iowa | Decatur | 31 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Bergeson Dam | Iowa | Cherokee | 31 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Collins Dam | Iowa | Davis | 31 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Mc Creedy Dam | Iowa | Jefferson | 31 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Tiefenthaler Dam | Iowa | Crawford | 31 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-40 | Iowa | Ringgold | 31 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Iowa Noname100 | Iowa | Madison | 31 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Frank Dam | Iowa | Adair | 31 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Renaud Dam | Iowa | Poweshiek | 31 | Significant | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Olson/Cretsinger Dam | Iowa | Guthrie | 31 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Deiber & Shook Dam | Iowa | Crawford | 31 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| De Heer Reclamation Dam | Iowa | Marion | 31 | Low | Not Rated | 2004 | Recreation |
| Gross Dam | Iowa | Adair | 31 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Arp Dam | Iowa | Johnson | 31 | Low | Not Rated | 1970 | 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.