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 |
|---|---|---|---|---|---|---|---|
| Turkey Cr Watershed Site 58-3 | Iowa | Cass | 32 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 13 | Iowa | Cass | 32 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Langenfield/Kolln Dam | Iowa | Crawford | 32 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-84 | Iowa | Appanoose | 32 | Low | Not Rated | 2009 | Flood Risk Reduction |
| R&J Investment Dam | Iowa | Davis | 32 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Mc Whirter Dam | Iowa | Jasper | 32 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Hertz Dam | Iowa | Story | 32 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 47 | Iowa | Winneshiek | 32 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Giffin Dam | Iowa | Des Moines | 32 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Carson Dam | Iowa | Cherokee | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Creswell Dam | Iowa | Woodbury | 32 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Patterson Dam | Iowa | Clarke | 32 | Low | - | 2018 | Grade Stabilization |
| Badger Creek Watershed Site 5-5 | Iowa | Madison | 32 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 40-2 | Iowa | Cass | 32 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Lake of Three Fires Dam | Iowa | Taylor | 32 | Significant | Satisfactory | 1967 | Recreation |
| Jett Subwatershed Site M-1 | Iowa | Woodbury | 32 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison Wtrshd Site11-1-3a | Iowa | Harrison | 32 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Zach Anderson Dam | Iowa | Montgomery | 32 | Low | - | 2024 | Grade Stabilization |
| Pacha Dam | Iowa | Jefferson | 32 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Van Haaften Dam | Iowa | Marion | 32 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Jewell Dam | Iowa | Winneshiek | 31 | Low | - | 2022 | Flood Risk Reduction |
| Kempkes Dam | Iowa | Madison | 31 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Mchugh Dam | Iowa | Monona | 31 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Simon Dam | Iowa | Washington | 31 | Low | Not Rated | 2006 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-53 | Iowa | Davis | 31 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Kopecky Dam | Iowa | Fremont | 31 | Low | Not Rated | 2005 | Grade Stabilization |
| Prairie Trail Development - South Dam | Iowa | Polk | 31 | Significant | Not Rated | 2008 | Flood Risk Reduction |
| Huffman Dam | Iowa | Keokuk | 31 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Wolf Creek Subwatershed Site 5-2 | Iowa | Woodbury | 31 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Reed Subwatershed Sta 88+35 #2 | Iowa | Monona | 31 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Trausch Dam | Iowa | Madison | 31 | Low | Not Rated | 2002 | Recreation |
| Cowles Dam | Iowa | Decatur | 31 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Diehl Dam | Iowa | Ringgold | 31 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Tiefenthaler Dam | Iowa | Crawford | 31 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Collins Dam | Iowa | Davis | 31 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Anderzhon Dam | Iowa | Fremont | 31 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Washington CO Road Dam 26-74-9 | Iowa | Washington | 31 | Low | Not Rated | 2005 | Grade Stabilization |
| Pierce Dam | Iowa | Lucas | 31 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Bee Jay Watershed Site 4 | Iowa | Pottawattamie | 31 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Randall Dam | Iowa | Johnson | 31 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 36-2 | Iowa | Madison | 31 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Turkey Creek Watershed Site 10-26 | Iowa | Cass | 31 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Lum Hollow Subwatershed 9-7697 | Iowa | Woodbury | 31 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Guthrie | 31 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-42 | Iowa | Ringgold | 31 | Low | Not Rated | 2006 | Flood Risk Reduction |
| West Douglas Watershed Site K-2 | Iowa | Adams | 31 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Garrett Dam | Iowa | Crawford | 31 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Johnson Dam | Iowa | Montgomery | 31 | Low | - | 2024 | Grade Stabilization |
| Justice Dam | Iowa | Clarke | 31 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Westside Subwatershed Site 2-2 | Iowa | Ida | 31 | Low | Not Rated | 1985 | 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.