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 |
|---|---|---|---|---|---|---|---|
| Soap Creek Watershed Site 68-35 | Iowa | Monroe | 32 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Soap Creek Watershed Site 4-84 | Iowa | Appanoose | 32 | Low | Not Rated | 2009 | Flood Risk Reduction |
| Carson Dam | Iowa | Cherokee | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Turkey Creek Watershed Site 62-7 | Iowa | Cass | 32 | Low | Not Rated | 2002 | Grade Stabilization |
| Pacha Dam | Iowa | Jefferson | 32 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-81 | Iowa | Appanoose | 32 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Walling Subwatershed Sta 23+00 #1h | Iowa | Woodbury | 32 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Patterson Dam | Iowa | Clarke | 32 | Low | — | 2018 | Grade Stabilization |
| Bacon Creek Watershed Site M-1 | Iowa | Plymouth | 32 | Low | Not Rated | 1976 | Flood Risk Reduction |
| Jones Brothers Dam | Iowa | Jefferson | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Pleasant Valley Subwtrshd #1a Sta 139+4 | Iowa | Ida | 32 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Mc Whirter Dam | Iowa | Jasper | 32 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Creswell Dam | Iowa | Woodbury | 32 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Zach Anderson Dam | Iowa | Montgomery | 32 | Low | — | 2024 | Grade Stabilization |
| Oak Hill Plantation Dam | Iowa | Dallas | 32 | Significant | Satisfactory | 2004 | Recreation |
| Langenfield/Kolln Dam | Iowa | Crawford | 32 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Hertz Dam | Iowa | Story | 32 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| De Bruin Dam | Iowa | Jasper | 32 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Robinette Dam | Iowa | Montgomery | 32 | Low | Not Rated | 2013 | Grade Stabilization |
| Turkey Cr Watershed Site 59d-1 | Iowa | Cass | 32 | Significant | Fair | 1990 | Flood Risk Reduction |
| Mosquito of Harrison B | Iowa | Harrison | 31 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Jewell Dam | Iowa | Winneshiek | 31 | Low | — | 2022 | Flood Risk Reduction |
| Peters Dam | Iowa | Ringgold | 31 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Terrill Dam | Iowa | Louisa | 31 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| John Hackbarth | Iowa | Hardin | 31 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Moulton Watershed Site A-1 | Iowa | Appanoose | 31 | Low | Satisfactory | 1968 | Flood Risk Reduction |
| West Wolf Creek Subwatershed Site 30a | Iowa | Woodbury | 31 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Huffman Dam | Iowa | Keokuk | 31 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 5-2 | Iowa | Adams | 31 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site 3-4287 | Iowa | Woodbury | 31 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 42 | Iowa | Cass | 31 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 41-2 | Iowa | Audubon | 31 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Voltmer Dam | Iowa | Warren | 31 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Randall Dam | Iowa | Johnson | 31 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Otte Dam | Iowa | Lee | 31 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-112 | Iowa | Appanoose | 31 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Scnoenjahn Dam | Iowa | Monona | 31 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Mc Clintic Dam | Iowa | Polk | 31 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Hawkins Dam | Iowa | Decatur | 31 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Lake Morris Erosion Control Site 5 | Iowa | Lucas | 31 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| West Aldrich Subwatershed Site 14-A-1 | Iowa | Ida | 31 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Pierce Dam | Iowa | Lucas | 31 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Westside Subwatershed Site 2-2 | Iowa | Ida | 31 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Walling Subwatershed Sta 19+70 #4 | Iowa | Woodbury | 31 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Frank Dam | Iowa | Adair | 31 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Garrett Dam | Iowa | Crawford | 31 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 36 | Iowa | Union | 31 | Low | Not Rated | 2003 | Grade Stabilization |
| Merrill Dorland Dam | Iowa | Clarke | 31 | Low | Not Rated | 2014 | Grade Stabilization |
| Vander Linden Dam | Iowa | Warren | 31 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Johnson Dam | Iowa | Lucas | 31 | Low | Not Rated | 1972 | 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.