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 68-44 | Iowa | Monroe | 32 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Patterson Dam | Iowa | Clarke | 32 | Low | - | 2018 | 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 |
| Jett Subwatershed Site M-6 | Iowa | Woodbury | 32 | Low | Not Rated | 2003 | |
| Soap Creek Watershed Site 68-35 | Iowa | Monroe | 32 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Iowa Noname17 | Iowa | Hardin | 32 | Low | Not Rated | 1965 | Recreation |
| Bear Creek Watershed Site 23 | Iowa | Winneshiek | 32 | Low | Not Rated | 2000 | Flood Risk Reduction |
| Iowa Noname24 | Iowa | Jasper | 32 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Giffin Dam | Iowa | Des Moines | 32 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Christensen Dam | Iowa | Humboldt | 32 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Zach Anderson Dam | Iowa | Montgomery | 32 | Low | - | 2024 | Grade Stabilization |
| Neustrom Subwatershed Site 11-1 | Iowa | Woodbury | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Nepper Subwatershed Site 3348 | Iowa | Monona | 32 | Low | Not Rated | 1948 | Fire Protection, Stock, Or ... |
| Mc Whirter Dam | Iowa | Jasper | 32 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site M-13551 | Iowa | Woodbury | 32 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Langenfield/Kolln Dam | Iowa | Crawford | 32 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site A-4 | Iowa | Crawford | 32 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Lake of Three Fires Dam | Iowa | Taylor | 32 | Significant | Satisfactory | 1967 | Recreation |
| Brad Wiley Dam | Iowa | Madison | 32 | Low | Not Rated | 2014 | Grade Stabilization |
| Walters Creek Watershed Site 5-2 | Iowa | Adams | 31 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Jewell Dam | Iowa | Winneshiek | 31 | Low | - | 2022 | Flood Risk Reduction |
| Twelve Mile Creek Watershed Site 36 | Iowa | Union | 31 | Low | Not Rated | 2003 | Grade Stabilization |
| Walker Dam | Iowa | Louisa | 31 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-40 | Iowa | Ringgold | 31 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Anderson Dam | Iowa | Pottawattamie | 31 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Terrill Dam | Iowa | Louisa | 31 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 48-2 | Iowa | Madison | 31 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Gesicki Dam | Iowa | Appanoose | 31 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Trausch Dam | Iowa | Madison | 31 | Low | Not Rated | 2002 | Recreation |
| Montie L Hammond Estate Dam | Iowa | Jasper | 31 | Low | Not Rated | 2014 | Grade Stabilization |
| Huffman Dam | Iowa | Keokuk | 31 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Lienemann Dam | Iowa | Dallas | 31 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison B | Iowa | Harrison | 31 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Iowa Noname93 | Iowa | Keokuk | 31 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Gosch Dam | Iowa | Monona | 31 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Little River Watershed Site 65-1 | Iowa | Decatur | 31 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Mc Clendon Dam | Iowa | Harrison | 31 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Guthrie | 31 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 14-1 | Iowa | Adams | 31 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Walling Subwatershed Sta 19+70 #4 | Iowa | Woodbury | 31 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Stickles Dam | Iowa | Union | 31 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-112 | Iowa | Appanoose | 31 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Pierce Dam | Iowa | Lucas | 31 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 15-1 | Iowa | Adams | 31 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Hawkins Dam | Iowa | Decatur | 31 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Young Dam | Iowa | Polk | 31 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Kuhl Dam | Iowa | Union | 31 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Nemitz Dam | Iowa | Crawford | 31 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Big Wyacondah Watershed Site 23 | Iowa | Davis | 31 | 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.