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 |
|---|---|---|---|---|---|---|---|
| Four-H Recreation Dam | Iowa | Louisa | 35 | Low | Not Rated | 1977 | Recreation |
| Three Mile Creek Watershed Site 42 | Iowa | Union | 35 | Low | Not Rated | 1970 | Other |
| Dessel Dam | Iowa | Cherokee | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Walton Lake Dam | Iowa | Jefferson | 35 | Significant | Satisfactory | 1900 | Water Supply |
| Monroe CO Roadgrade Dam Site 35.4.10 | Iowa | Monroe | 35 | Low | Not Rated | 1985 | Other |
| Mc Cormick Dam | Iowa | Lucas | 35 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Deutsch Dam | Iowa | Marshall | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Pemble Dam | Iowa | Greene | 35 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Lum Hollow Subwatershed 9c-3295 | Iowa | Woodbury | 35 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Tim Lau Site 2 | Iowa | Clarke | 35 | Low | Not Rated | 2016 | Grade Stabilization |
| Walling Subwatershed Sta 18+02 #5 | Iowa | Woodbury | 35 | Low | Not Rated | 1953 | Fire Protection, Stock, Or ... |
| Arrowhead Investments Dam | Iowa | Madison | 35 | Low | - | 2020 | Grade Stabilization |
| Badger Lake Dam | Iowa | Webster | 35 | Significant | Fair | 1963 | Recreation |
| Mike Mikkelson Subwatershed 5-13484 | Iowa | Monona | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Greenfield Dam | Iowa | Jefferson | 35 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Plymouth | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Railroad Lake Dam | Iowa | Scott | 35 | Significant | Satisfactory | 1983 | Recreation |
| Iowa Noname35 | Iowa | Plymouth | 35 | Significant | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Miller & Stender Dam | Iowa | Crawford | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Klein Dam | Iowa | Marion | 35 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site C-3 | Iowa | Crawford | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Brantley Dam | Iowa | Lucas | 35 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 30 | Iowa | Union | 35 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Mc Donald Subwatershed Site 1 | Iowa | Woodbury | 35 | Low | Not Rated | 1985 | Recreation |
| Young Dam | Iowa | Madison | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 81-4 | Iowa | Audubon | 35 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Danilson Dam | Iowa | Boone | 35 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Wiechmann/Rooks Dam | Iowa | Hardin | 35 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Saxton Dam #2 | Iowa | Decatur | 35 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Mule Creek Watershed Sta 56+03 | Iowa | Mills | 35 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Quastad Dam | Iowa | Emmet | 35 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-83 | Iowa | Wapello | 35 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Carrier Dam | Iowa | Lee | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Lake of Three Fire Dredge Spoil Contianment Dam | Iowa | Taylor | 35 | Low | Not Rated | 2003 | Other |
| Twelvemile Watershed Site D-60 | Iowa | Union | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| G&R Farms Dam | Iowa | Washington | 35 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Joe Sinclair Dam | Iowa | Monroe | 35 | Low | - | 2018 | Water Supply |
| Simon Run Watershed Site 9-3e | Iowa | Pottawattamie | 35 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site F-1 | Iowa | Crawford | 35 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Folkerts Dam | Iowa | Lyon | 35 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-9 | Iowa | Crawford | 35 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Naylor Dam | Iowa | Mahaska | 35 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Jarrett Dam | Iowa | Des Moines | 35 | Low | - | 2023 | Grade Stabilization |
| Mule Creek Watershed Sta 30+00 | Iowa | Mills | 35 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| West Sunnyside Watershed Site E-1 | Iowa | Plymouth | 34 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Crawford Creek Subwatershed Site 12b-1 | Iowa | Ida | 34 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Oakland Acres Dam | Iowa | Jasper | 34 | Low | Not Rated | 1972 | Recreation |
| Forinash & Lundberg Dam | Iowa | Warren | 34 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Stimson Farms Dam | Iowa | Page | 34 | Low | - | 2021 | Grade Stabilization |
| Williams Dam | Iowa | Clarke | 34 | Low | Not Rated | 2010 | 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.