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 |
|---|---|---|---|---|---|---|---|
| Clint Means Dam | Iowa | Taylor | 33 | Low | - | 2021 | Grade Stabilization |
| Whaley/Williams Dam | Iowa | Henry | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Miami Lake Sediment Control Dam Site 2 | Iowa | Monroe | 33 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Lincoln Ridge Estates Dam | Iowa | Greene | 33 | Significant | Fair | 2007 | Recreation |
| Rock Creek Dam | Iowa | Jasper | 33 | Significant | Fair | - | Recreation |
| Johnston Dam | Iowa | Van Buren | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-84 | Iowa | Wapello | 33 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Mc Donald Subwatershed Site 5-2290 | Iowa | Woodbury | 33 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Becker Dam | Iowa | Webster | 33 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Springer Dam | Iowa | Greene | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 45-4 | Iowa | Madison | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Buck Dam | Iowa | Crawford | 33 | Low | Not Rated | 2000 | Grade Stabilization |
| Soap Creek Watershed Site 26-39 | Iowa | Davis | 33 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Lorenzen Dam | Iowa | Clinton | 33 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Angran Dam | Iowa | Monroe | 33 | Low | Not Rated | 2001 | Grade Stabilization |
| Madison County Roadgrade Dam 4-74-29 | Iowa | Madison | 33 | Low | Not Rated | 1987 | Other |
| Cummins Dam | Iowa | Adair | 33 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Iowa Noname41 | Iowa | Pottawattamie | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Tim Temeyer Dam | Iowa | Pottawattamie | 33 | Low | - | 2020 | Grade Stabilization |
| Mc Larty-Edwards Subwtrshd Sta 20+00 #1 | Iowa | Woodbury | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Possehl Dam | Iowa | Monroe | 33 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Commers Dam | Iowa | Montgomery | 33 | Low | - | 2023 | Flood Risk Reduction |
| Hulen/Murphy Dam | Iowa | Des Moines | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Beach Dam | Iowa | Henry | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-31 | Iowa | Appanoose | 33 | Low | Not Rated | 2001 | Flood Risk Reduction |
| Davis Subwatershed 7-6044 | Iowa | Woodbury | 33 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Knapp Dam | Iowa | Davis | 33 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Reed Subwatershed Sta 97+82 | Iowa | Monona | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Backbone Dam | Iowa | Delaware | 33 | Significant | Satisfactory | 1938 | Recreation |
| Walters Creek Watershed Site 44-1 | Iowa | Adams | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Fairfield Waterworks Dam No 2 | Iowa | Jefferson | 33 | Low | Satisfactory | 1900 | Water Supply |
| Cheers Dam | Iowa | Union | 33 | Low | Not Rated | 2005 | Grade Stabilization |
| Jonbar Ranch Dam | Iowa | Dallas | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Simonsen Subwatershed Sta 123+48 Main | Iowa | Cherokee | 33 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site A-1 | Iowa | Taylor | 33 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Davids Creek Watershed Site 10-2 | Iowa | Audubon | 33 | Significant | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 86-1 | Iowa | Audubon | 33 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Evans/Heston Dam | Iowa | Lucas | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Carlson Dam | Iowa | Audubon | 33 | Low | Not Rated | 1950 | Fire Protection, Stock, Or ... |
| Corey Family Farms Dam | Iowa | Calhoun | 33 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 63 | Iowa | Adair | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Shaw Dam | Iowa | Des Moines | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| College Corner Subwatershed Site 3-1 | Iowa | Woodbury | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Iowa Noname96 | Iowa | Wayne | 33 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| West Wolf Creek Subwatershed Site 26 | Iowa | Woodbury | 33 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| West Sunnyside Watershed Site C-6 | Iowa | Plymouth | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 86-4 | Iowa | Audubon | 33 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Lake Miami Sediment Basin - Middle Site | Iowa | Monroe | 33 | Low | Not Rated | 2000 | Grade Stabilization |
| Walters Creek Watershed Site 43-1 | Iowa | Adams | 33 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Cresswell Dam | Iowa | Woodbury | 33 | Low | Not Rated | 1954 | 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.