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 |
|---|---|---|---|---|---|---|---|
| Little Whiskey Subwatershed Site M-1 | Iowa | Woodbury | 37 | Low | Not Rated | 1984 | Other |
| Soap Creek Watershed Site 26-38 | Iowa | Davis | 37 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Sherman Dam | Iowa | Plymouth | 37 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Indian Creek Watershed Site 25 | Iowa | Pottawattamie | 37 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Neustrom Subwatershed Site 11-2 | Iowa | Woodbury | 37 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Alfred Dam | Iowa | Wayne | 37 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Blanchard Dam | Iowa | Lee | 37 | Low | Not Rated | 2006 | Grade Stabilization |
| North Branch Ralston Creek Dam | Iowa | Johnson | 37 | High | Satisfactory | 1983 | Flood Risk Reduction |
| Schreurs Dam | Iowa | Madison | 37 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Kline/Peterson Dam | Iowa | Harrison | 37 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site M-3 | Iowa | Fremont | 37 | Low | Not Rated | 1973 | Water Supply |
| Adams Dam | Iowa | Boone | 37 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Jar Farms | Iowa | Montgomery | 37 | Low | Not Rated | 2001 | Grade Stabilization |
| Parnell Creek Subwatershed Site M-5 | Iowa | Woodbury | 37 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Clive Lake Dam | Iowa | Polk | 37 | High | Satisfactory | 1989 | Other |
| Iowa Noname32 | Iowa | Monona | 37 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mud Creek Subwatershed Site 14-1 | Iowa | Woodbury | 37 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Isu Dam | Iowa | Story | 37 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Hall Dam | Iowa | Boone | 37 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-63 | Iowa | Davis | 37 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Troublesome Cr Watershed Site 24-3 | Iowa | Cass | 37 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Mule Creek Watershed Sta 48+00 | Iowa | Mills | 37 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Sievers Dam | Iowa | Monona | 37 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Conner Dam | Iowa | Keokuk | 37 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-33b | Iowa | Monroe | 37 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Camp Creek Subwatershed Site 10-1 | Iowa | Woodbury | 37 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 21 | Iowa | Winneshiek | 37 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Mud Creek Subwatershed Site 13-1 | Iowa | Woodbury | 37 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Weed Dam | Iowa | Crawford | 37 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Page | 37 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 8a | Iowa | Montgomery | 37 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Lincoln Acres Dam | Iowa | Warren | 37 | Low | Not Rated | — | Recreation |
| Marion County Roadgrade Dam | Iowa | Marion | 37 | Low | Not Rated | 1965 | Other |
| Doherty Dam | Iowa | Cherokee | 37 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Kinder/Patterson Dam | Iowa | Monona | 37 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Big Whiskey Subwatershed Site 6-2 | Iowa | Woodbury | 37 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-22-3 | Iowa | Shelby | 37 | Significant | Satisfactory | 1978 | Fire Protection, Stock, Or ... |
| Iowa Noname89 | Iowa | Jasper | 37 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 41-1 | Iowa | Audubon | 37 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Indian Cr-Van Buren Watershed Site 15 | Iowa | Van Buren | 37 | Low | Poor | 1989 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-6-1 | Iowa | Harrison | 37 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| South Magnolia Watershed Site 5 | Iowa | Harrison | 37 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Iowa Noname18 | Iowa | Harrison | 37 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Bowden Dam | Iowa | Webster | 37 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Mule Creek Watershed Site 7 | Iowa | Mills | 37 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Herberger Dam | Iowa | Warren | 37 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Glissman Dam | Iowa | Dallas | 37 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-2-5 | Iowa | Crawford | 37 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-35-1 | Iowa | Crawford | 37 | Significant | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Swanson Dam | Iowa | Warren | 37 | Low | Not Rated | 1969 | 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.