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 |
|---|---|---|---|---|---|---|---|
| Debord/Brown Dam | Iowa | Cass | 26 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Hull Reclamation Site 5 | Iowa | Mahaska | 26 | Low | Not Rated | 1988 | Recreation |
| Fenchel Dam | Iowa | Linn | 26 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Corydon Reservoir Dam | Iowa | Wayne | 26 | Significant | Satisfactory | 1974 | Recreation |
| Equity Built Farms Dam | Iowa | Appanoose | 26 | Low | Not Rated | 1999 | Grade Stabilization |
| Brenton Farm Dam | Iowa | Dallas | 26 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Wildwood Hill Dam | Iowa | Madison | 26 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Northeast Lake Dam | Iowa | Scott | 26 | Low | Not Rated | 1972 | Recreation |
| Lake Sugema Silt Control Dam | Iowa | Van Buren | 26 | Low | Not Rated | 1992 | Debris Control |
| Oak Grove Park Dam | Iowa | Sioux | 26 | Low | Not Rated | 1977 | Recreation |
| Knowler/Mc Nabb Dam | Iowa | Keokuk | 26 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Beggs Dam | Iowa | Van Buren | 26 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Trinkle Reclamation Dam C | Iowa | Marion | 26 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 56 | Iowa | Winneshiek | 26 | Low | Not Rated | 2002 | Flood Risk Reduction |
| King Dam | Iowa | Polk | 26 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Jefferson County Roadgrade Dam 7-72-8 | Iowa | Jefferson | 26 | Low | Not Rated | 2007 | Fire Protection, Stock, Or ... |
| Phillips Subwatershed Site 131 | Iowa | Monona | 26 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Three Mile Lake Sediment Dam | Iowa | Union | 26 | Low | Not Rated | 1999 | Other |
| Mc Clain Dam | Iowa | Poweshiek | 26 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Fountain Hills Dam #2 | Iowa | Marion | 26 | Significant | Not Rated | 2000 | Other |
| Diamond Lake Campground Dam | Iowa | Poweshiek | 26 | Low | Not Rated | 2008 | Recreation |
| Johnson Dam Site 2 | Iowa | Jefferson | 26 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Iowa Falls Milldam | Iowa | Hardin | 26 | Significant | Fair | 1925 | Hydroelectric |
| Held Watershed Site B-1 | Iowa | Plymouth | 26 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Hacklebarney - Pierson Dam | Iowa | Montgomery | 26 | Low | Not Rated | 2005 | Grade Stabilization |
| Turkey Creek Watershed Site 19-29 | Iowa | Cass | 26 | Low | Not Rated | 2004 | Grade Stabilization |
| Koethe Dam #2 | Iowa | Warren | 26 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Lawson Subwatershed Site 2-1 | Iowa | Monona | 26 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Lum Hollow Subwatershed M-13210 | Iowa | Woodbury | 26 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Monroe CO Roadgrade Site 5.4.0 | Iowa | Monroe | 26 | Low | Not Rated | 1984 | Other |
| Iowa Noname62 | Iowa | Ringgold | 26 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Hound Dog Watershed Site B-13 | Iowa | Fremont | 26 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site M-1 | Iowa | Woodbury | 26 | Low | Not Rated | 1983 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-73 | Iowa | Davis | 26 | Low | Not Rated | 1997 | |
| Blockton Watershed Site T-1 | Iowa | Taylor | 26 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 24-1 | Iowa | Cass | 26 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-64a | Iowa | Monroe | 26 | Low | Not Rated | 1997 | |
| Arnold-Armstrong Subwtrshd Sta 243+48 | Iowa | Monona | 26 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Aegon Dam | Iowa | Linn | 26 | High | Satisfactory | 1997 | Recreation |
| Ledgewood Creek Watershed Site 9-3 | Iowa | Fremont | 26 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Lake Miami Sediment Contro Dam - South Site | Iowa | Monroe | 26 | Low | Not Rated | 2000 | Grade Stabilization |
| Turkey Cr Watershed Site 53-1 | Iowa | Cass | 26 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| South Hungerford 2 Watershed Site 8 | Iowa | Plymouth | 26 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 41-2 | Iowa | Madison | 26 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 31-4 | Iowa | Audubon | 26 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-69b | Iowa | Monroe | 26 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Walters Creek Watershed Site 39-1 | Iowa | Adams | 26 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Honey Creek Watershed Site J-4-A | Iowa | Lucas | 26 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Big Wyacondah Watershed Site 10 | Iowa | Davis | 26 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 40-1 | Iowa | Madison | 26 | Low | Not Rated | 1974 | 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.