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 |
|---|---|---|---|---|---|---|---|
| Iowa Noname14 | Iowa | Fremont | 22 | Low | Not Rated | 1961 | Recreation |
| Clark Dam | Iowa | Iowa | 22 | Low | - | 2023 | Recreation |
| Thacther Dam | Iowa | Warren | 22 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Hatfield Dam | Iowa | Adair | 22 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Felton Dam | Iowa | Warren | 22 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Foreman Dam | Iowa | Jefferson | 22 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Mills Dam | Iowa | Marshall | 22 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Ellerbusch Dam | Iowa | Ida | 22 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Beemer Dam | Iowa | Taylor | 22 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Mason Dam | Iowa | Jasper | 22 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Ever-Tru Pond | Iowa | Poweshiek | 22 | Low | Not Rated | 2016 | Flood Risk Reduction |
| Hess Dam #2 | Iowa | Guthrie | 22 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Newton Dam | Iowa | Adair | 22 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Sorenson Dam | Iowa | Audubon | 22 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Stanley Dam | Iowa | Warren | 22 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Schmidt Reclamation Dam | Iowa | Marion | 22 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Mc Mullin Dam | Iowa | Wapello | 22 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Jansma Dam | Iowa | Lyon | 22 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Centerville Waterworks Dam | Iowa | Appanoose | 22 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Jeanes Dam | Iowa | Ringgold | 22 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Ottilie Dam | Iowa | Marshall | 22 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Nagel Dam | Iowa | Poweshiek | 22 | Low | Not Rated | 2015 | Recreation |
| Sietmann Dam | Iowa | Marshall | 22 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Humphrey/Sorenson Dam | Iowa | Audubon | 22 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Rose Acre Farm Dam | Iowa | Madison | 22 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Ramsbottom Dam | Iowa | Adair | 22 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Lynch Dam | Iowa | Davis | 22 | Low | Not Rated | 2013 | Flood Risk Reduction |
| Mc Clurg Dam | Iowa | Davis | 22 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Hill Dam | Iowa | Adair | 22 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Hugen Dam | Iowa | Mahaska | 22 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Cope Dam | Iowa | Davis | 22 | Low | Not Rated | 2014 | Flood Risk Reduction |
| Swigart Dam | Iowa | Ringgold | 22 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Cherry Tree Subdivision Dam | Iowa | Jefferson | 22 | Low | Not Rated | 1999 | Recreation |
| Joshua Rardin Dam | Iowa | Adair | 22 | Low | - | 2017 | Grade Stabilization |
| Hiatt Dam | Iowa | Union | 22 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Combs Dam | Iowa | Davis | 22 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Iowa Noname58 | Iowa | Wayne | 22 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Crescent Lake Dam | Iowa | Polk | 22 | Significant | Not Rated | 2007 | Flood Risk Reduction |
| Izaak Walton Lake Dam | Iowa | Des Moines | 22 | Significant | Satisfactory | 1921 | Recreation |
| Davis Subwatershed M-2410 | Iowa | Woodbury | 22 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Easter Lake Retention Basin # 10 | Iowa | Polk | 22 | Significant | Satisfactory | 2005 | Flood Risk Reduction |
| Bourjaily Dam | Iowa | Johnson | 22 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Honey Creek Watershed Site A-2 | Iowa | Lucas | 22 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Perion Subwatershed Site B-700 | Iowa | Ida | 22 | Low | Not Rated | 1949 | Fire Protection, Stock, Or ... |
| Keokuk County Roadgrade Dam 8-74-10 | Iowa | Keokuk | 22 | Low | Not Rated | 1982 | Other |
| Stennett-Red Oak Watershed Site 17 | Iowa | Montgomery | 22 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 19-34a | Iowa | Cass | 22 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Viking Road Detention Dam | Iowa | Black Hawk | 22 | High | Fair | 1994 | Flood Risk Reduction |
| Blockton Watershed Site W-5 | Iowa | Taylor | 22 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site W-3 | Iowa | Taylor | 22 | 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.