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 |
|---|---|---|---|---|---|---|---|
| Big Wyacondah Watershed Site 26 | Iowa | Davis | 28 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Anthon Subwatershed 1-2261 | Iowa | Woodbury | 28 | Significant | Fair | 1954 | Other |
| West Douglas Watershed Site K-1 | Iowa | Adams | 28 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-49 | Iowa | Davis | 28 | Low | Not Rated | 2000 | Flood Risk Reduction |
| Badger Creek Watershed Site 49-1 | Iowa | Madison | 28 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-74 | Iowa | Monroe | 28 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Huff Subwatershed Sta 122+69 #1 | Iowa | Monona | 28 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Ida County Roadgrade Dam 04-85-41 | Iowa | Crawford | 28 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-58 | Iowa | Appanoose | 28 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Wenger Subwatershed Sta 32+00 #5 | Iowa | Woodbury | 28 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-66 | Iowa | Davis | 28 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 10-5a | Iowa | Cass | 28 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 38-1 | Iowa | Madison | 28 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 34-1 | Iowa | Audubon | 28 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Simonsen Subwatershed Lat B Sta 64+20 | Iowa | Cherokee | 28 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Gant Creek Watershed Site C-2 | Iowa | Plymouth | 28 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 58 | Iowa | Union | 28 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Big Wyacondah Watershed Site 27-1 | Iowa | Davis | 28 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Diamond Lake Watershed Site B-9 | Iowa | Poweshiek | 28 | Low | Not Rated | 1972 | Flood Risk Reduction |
| Bremer County Roadgrade Dam 22-91-13 | Iowa | Bremer | 28 | Low | Not Rated | 1987 | Other |
| Twelve Mile Creek Watershed Site 46 | Iowa | Union | 28 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 81-3 | Iowa | Audubon | 28 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-52 | Iowa | Davis | 28 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Weber Creek Subwatershed Site M-18555 | Iowa | Woodbury | 28 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Walling Subwatershed Sta 31+73 #1 | Iowa | Woodbury | 28 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Walling Subwatershed Sta 19+11 #1k | Iowa | Woodbury | 28 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Pleasant Valley Subwtrshd #1c Sta 52+70 | Iowa | Ida | 28 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 83-2 | Iowa | Audubon | 28 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site D-80 | Iowa | Ringgold | 28 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Soap Creek Watershed Site 4-110 | Iowa | Appanoose | 28 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Jasper County Roadgrade Dam 35-81-17 | Iowa | Jasper | 28 | Low | Not Rated | 2001 | Other |
| Troublesome Cr Watershed Site 80-1 | Iowa | Audubon | 28 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-91 | Iowa | Wapello | 28 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 50-4 | Iowa | Audubon | 28 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 67 | Iowa | Union | 28 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site D-81 | Iowa | Ringgold | 28 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Soap Creek Watershed Site 4-54 | Iowa | Appanoose | 28 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Upper Locust Creek Watershed Site L-19 | Iowa | Wayne | 28 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Upper Locust Creek Watershed Site L-25 | Iowa | Wayne | 28 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Blue Grass Lake Dam | Iowa | Scott | 28 | Significant | Satisfactory | 1974 | Recreation |
| Three Mile Creek Watershed Site U-4 | Iowa | Union | 28 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Wayne Co. Roadgrade Dam - Garber Site 2 | Iowa | Wayne | 28 | Low | Not Rated | 1996 | Other |
| Troublesome Cr Watershed Site 49-3 | Iowa | Audubon | 28 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 68-1 | Iowa | Union | 28 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 26 | Iowa | Winneshiek | 28 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Wayne County Roadgrade Dam 26-70-22 | Iowa | Wayne | 28 | Low | Not Rated | 2001 | Other |
| East Fork Grand River Watershed Site A-87 | Iowa | Ringgold | 28 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Van Buren County Roadgrade Dam 28-68-9 | Iowa | Van Buren | 28 | Low | Not Rated | 1982 | Other |
| East Fork Grand River Watershed Site B-54 | Iowa | Ringgold | 28 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Three Mile Creek Watershed Site U-5-B | Iowa | Union | 28 | Low | Not Rated | 1980 | 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.