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 |
|---|---|---|---|---|---|---|---|
| Iowa Noname88 | Iowa | Appanoose | 30 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mc Call Subwatershed Site M-3 | Iowa | Monona | 30 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Lee Dam | Iowa | Lyon | 30 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Hoffman Dam | Iowa | Dubuque | 30 | Low | — | 2022 | Flood Risk Reduction |
| Beener Dam | Iowa | Warren | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Sheckler Dam | Iowa | Jefferson | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Roeder Dam | Iowa | Tama | 30 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Arcola Subwatershed Site B-5350 | Iowa | Monona | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Grote Dam | Iowa | Harrison | 30 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Hopkins Dam | Iowa | Davis | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Andrew Dam | Iowa | Decatur | 30 | Low | Not Rated | 1983 | Fire Protection, Stock, Or ... |
| Peterson Dam | Iowa | Woodbury | 30 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site E-1 | Iowa | Taylor | 30 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 7 | Iowa | Mills | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Arlington Subwatershed Sta 26+80 #12 | Iowa | Plymouth | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Overmeyer Dam | Iowa | Adair | 30 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 62-4 | Iowa | Union | 30 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Hamaker Dam | Iowa | Crawford | 30 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Halliday Dam | Iowa | Page | 30 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Sharp Dam | Iowa | Crawford | 30 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Moulton Watershed Site B-8 | Iowa | Appanoose | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Moulton Watershed Site A-3 | Iowa | Appanoose | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Lawson Subwatershed Site 3-1 | Iowa | Monona | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Moulton Watershed Site B-2 | Iowa | Appanoose | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Elliott Dam | Iowa | Story | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Shields & Laubscher Dam | Iowa | Crawford | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Upper Locust Watershed Site L-14 | Iowa | Wayne | 30 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Huseman Dam | Iowa | Madison | 30 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Belva Deer Park Wetland Dam | Iowa | Keokuk | 30 | Low | Not Rated | 2001 | Fish and Wildlife Pond |
| Twelve Mile Creek Watershed Site 35-2 | Iowa | Union | 30 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Boothe Dam | Iowa | Warren | 30 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Rodgers Park Lake Dam | Iowa | Benton | 30 | Significant | Fair | 1977 | Recreation |
| Davis Dam | Iowa | Monroe | 30 | Low | Not Rated | 2004 | Grade Stabilization |
| East Fork Grand River Watershed Site E58b | Iowa | Ringgold | 30 | Low | Not Rated | 2010 | Flood Risk Reduction |
| Appanoose County Roadgrade Dam 32-68-18 | Iowa | Appanoose | 30 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Little River Watershed Site 51-1 | Iowa | Decatur | 30 | Significant | Satisfactory | 2005 | Recreation |
| Tolton Dam | Iowa | Cass | 30 | Low | — | 2020 | Recreation |
| Croy Subwatershed Site A3-4908 | Iowa | Monona | 30 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Lannom Dam | Iowa | Poweshiek | 30 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Homepond Dam | Iowa | Decatur | 30 | Significant | Fair | 1920 | Water Supply |
| Waubonsie Creek Watershed Sites M-5 | Iowa | Mills | 30 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Croy Subwatershed Site A3-1050 | Iowa | Monona | 30 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Hawley Dam | Iowa | Crawford | 30 | Low | Not Rated | 2009 | Flood Risk Reduction |
| Paulsen Dam | Iowa | Audubon | 30 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Barber Hollow Subwtrshed Site 5-H-3865 | Iowa | Monona | 30 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Rolling Hills Estate Dam - Jones County | Iowa | Jones | 30 | Low | Not Rated | 2006 | Recreation |
| Willow Creek Subwatershed Site M-3 | Iowa | Woodbury | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Tug Creek Roadgrade - West Dam | Iowa | Van Buren | 30 | Low | Not Rated | 1990 | Other |
| Randall Dam | Iowa | Lucas | 30 | Low | Not Rated | 1982 | Fire Protection, Stock, Or ... |
| Hopp Dam (Lower Site) | Iowa | Mills | 30 | Low | Not Rated | 2005 | 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.