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 |
|---|---|---|---|---|---|---|---|
| Badger Creek Watershed Site 30-1 | Iowa | Madison | 39 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Jasper County Roadgrade Dam 20-81-20 | Iowa | Jasper | 39 | Low | Not Rated | 2002 | Grade Stabilization |
| Mike Mikkelson Subwatershed 5-10316 | Iowa | Monona | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Neustrom Subwatershed Site M-5 | Iowa | Woodbury | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Pierce Creek No 1 Watershed Site 1 | Iowa | Page | 39 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site K-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1976 | Flood Risk Reduction |
| Stratton Dam | Iowa | Story | 39 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Union County Roadgrade Dam 29-73-29 | Iowa | Union | 39 | Low | Not Rated | 1993 | Other |
| Windy Hill Subwatershed Site 2-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-1-5 | Iowa | Crawford | 39 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-85 | Iowa | Wapello | 39 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Mud Creek Subwatershed Site 13b-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Griener Dam | Iowa | Keokuk | 39 | Low | Not Rated | 1975 | Recreation |
| Ahquabi Dredge Spoil Containment Dam 1a | Iowa | Warren | 39 | Low | Not Rated | 1995 | Debris Control |
| Iowa Noname85 | Iowa | Fremont | 39 | Low | Not Rated | 1976 | Other |
| Mississippi River Locks and Dam 14 | Iowa | Scott | 39 | Significant | Not Available | 1939 | Navigation |
| Ledgewood Creek Watershed Site 2-1 | Iowa | Fremont | 39 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Rock Valley Lake Dam | Iowa | Wayne | 39 | Significant | Fair | 2008 | Recreation |
| Crawford Creek Subwatershed Site 4-1 | Iowa | Ida | 39 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Mc Clure Dam | Iowa | Davis | 39 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-2-3 | Iowa | Harrison | 39 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Anderson Dam | Iowa | Wapello | 38 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Vanatta Dam | Iowa | Fremont | 38 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Huebner Dam | Iowa | Appanoose | 38 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Grundle Dam | Iowa | Fremont | 38 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Rooks Dam | Iowa | Hardin | 38 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Big Whiskey 1 Subwatershed Site 3-1 | Iowa | Woodbury | 38 | Significant | Fair | 1968 | Fire Protection, Stock, Or ... |
| Bennett Dam | Iowa | Polk | 38 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Grimm Dam | Iowa | Louisa | 38 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Muscatine County Roadgrade Dam 14-77-1e | Iowa | Muscatine | 38 | Significant | Fair | 1971 | Other |
| Mill Picayune Watershed Site M-24-6 | Iowa | Shelby | 38 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Bitter Creek Subwatershed Site E-1 | Iowa | Ida | 38 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Nowak Dam | Iowa | Harrison | 38 | Low | Not Rated | 2001 | Grade Stabilization |
| Brauninger Dam | Iowa | Woodbury | 38 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Thomsen Dam | Iowa | Woodbury | 38 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Kness Dam | Iowa | Monroe | 38 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site P-47-3 | Iowa | Shelby | 38 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Cottonwood-Green Valley Subws 50+40 #2 | Iowa | Monona | 38 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Little Beaver Subwatershed M-10001 | Iowa | Woodbury | 38 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Behrendt Dam | Iowa | Monona | 38 | Low | Not Rated | 2014 | Grade Stabilization |
| Twelve Mile Creek Watershed Site D-35 | Iowa | Union | 38 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 44-1 | Iowa | Audubon | 38 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 53-3 | Iowa | Cass | 38 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Lake Ellis Dam | Iowa | Lucas | 38 | Significant | Fair | 1993 | Water Supply |
| Iowa Noname8 | Iowa | Crawford | 38 | Low | Not Rated | 1964 | Recreation |
| Youngren Dam | Iowa | Webster | 38 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Southfork Dam | Iowa | Dallas | 38 | High | Satisfactory | 1988 | Other |
| Baker Subwatershed Site 1-3 | Iowa | Monona | 38 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Central Holding Co. Dam | Iowa | Carroll | 38 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Dickman Subwatershed Site 3-1 | Iowa | Woodbury | 38 | Low | Not Rated | 1973 | 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.