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 |
|---|---|---|---|---|---|---|---|
| Walters Creek Watershed Site 43-1 | Iowa | Adams | 33 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Crab Tree Lake Dam | Iowa | Marshall | 33 | Significant | Satisfactory | 1948 | Recreation |
| Soap Creek Watershed Site 68-42 | Iowa | Monroe | 33 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Jonbar Ranch Dam | Iowa | Dallas | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| East Aldrich Subwatershed M-3608.2 | Iowa | Ida | 33 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Ballard Country Club Dam | Iowa | Story | 33 | Low | Satisfactory | 1974 | Irrigation |
| Badger Creek Watershed Site 45-4 | Iowa | Madison | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Davids Creek Watershed Site 9-3 | Iowa | Audubon | 33 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Marengo Golf & Country Club Dam | Iowa | Iowa | 33 | Low | Not Rated | 2000 | Irrigation |
| Putnam Dam | Iowa | Davis | 33 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Lake Miami Sediment Basin - Middle Site | Iowa | Monroe | 33 | Low | Not Rated | 2000 | Grade Stabilization |
| Slip Bluff Park Dam | Iowa | Decatur | 33 | Low | Not Rated | 1970 | Recreation |
| Cheers Dam | Iowa | Union | 33 | Low | Not Rated | 2005 | Grade Stabilization |
| Simonsen Subwatershed Sta 142+42 Main | Iowa | Cherokee | 33 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Story | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Mc Whirter Dam | Iowa | Jasper | 32 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 47 | Iowa | Winneshiek | 32 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Clark Dam | Iowa | Decatur | 32 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Oswald Dam | Iowa | Clarke | 32 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Eblen Dam | Iowa | Cass | 32 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Creswell Dam | Iowa | Woodbury | 32 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Van Haaften Dam | Iowa | Marion | 32 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Schilling Dam | Iowa | Lucas | 32 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 13 | Iowa | Cass | 32 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Ls Miller 4-3375 | Iowa | Woodbury | 32 | Low | - | 1960 | Grade Stabilization |
| Voegtlin Dam | Iowa | Clarke | 32 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Kemp/Crumly Dam | Iowa | Louisa | 32 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Kesler Dam | Iowa | Hamilton | 32 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Bower Off-Road Dam | Iowa | Union | 32 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Hilleary Dam | Iowa | Des Moines | 32 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Woodbury County Roadgrade Dam 5-87-44 | Iowa | Woodbury | 32 | Low | Not Rated | 1991 | Other |
| Bangston Dam | Iowa | Montgomery | 32 | Low | Not Rated | 2006 | Fire Protection, Stock, Or ... |
| Nutt Hollow Subwatershed Site 3-3075 | Iowa | Monona | 32 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Carson Dam | Iowa | Cherokee | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 40-2 | Iowa | Cass | 32 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Hinrichs Dam | Iowa | Iowa | 32 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Garst Dam | Iowa | Guthrie | 32 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison Wtrshd Site11-1-3a | Iowa | Harrison | 32 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Lake Miami Dam | Iowa | Monroe | 32 | Significant | Satisfactory | 1966 | Recreation |
| Patterson Dam | Iowa | Clarke | 32 | Low | - | 2018 | Grade Stabilization |
| Ryan Henschal Watershed Site F-3 | Iowa | Pottawattamie | 32 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Cloud Dam | Iowa | Monona | 32 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Cubbage Dam | Iowa | Jefferson | 32 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Bee Jay Watershed Site 16 | Iowa | Pottawattamie | 32 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Garst Farms Dam | Iowa | Guthrie | 32 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Pierce Cr. No. 2 Site J-2 | Iowa | Page | 32 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Gilliand Dam | Iowa | Washington | 32 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Mule Creek Watershed 7837 | Iowa | Mills | 32 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 12-2 | Iowa | Adams | 32 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Hayes Dam | Iowa | Page | 32 | Low | Not Rated | 2012 | Grade Stabilization |
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.