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 |
|---|---|---|---|---|---|---|---|
| Weppler Dam | Iowa | Cass | 33 | Low | — | 2023 | Grade Stabilization |
| Beary Dam | Iowa | Lucas | 33 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Greenland Dam | Iowa | Ringgold | 33 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Lincoln Ridge Estates Dam | Iowa | Greene | 33 | Significant | Fair | 2007 | Recreation |
| Prehm Dam | Iowa | Henry | 33 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 45-4 | Iowa | Madison | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Held Watershed Site D-4 | Iowa | Plymouth | 33 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Rasmussen Dam | Iowa | Madison | 33 | Low | — | 2020 | Grade Stabilization |
| Dtl Farms LLC Dam | Iowa | Madison | 33 | Low | — | 2020 | Grade Stabilization |
| Gardner Dam | Iowa | Wayne | 33 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 3 | Iowa | Union | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Mc Larty-Edwards Subwtrshd #9 19+77 | Iowa | Woodbury | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Mountain Dam | Iowa | Warren | 33 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Pilling Dam | Iowa | Pottawattamie | 33 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Mc Larty-Edwards Subwtrshd Sta 20+00 #1 | Iowa | Woodbury | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Cheers Dam | Iowa | Union | 33 | Low | Not Rated | 2005 | Grade Stabilization |
| Blockton Watershed Site A-1 | Iowa | Taylor | 33 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site 8-1 | Iowa | Fremont | 33 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| College Corner Subwatershed Site 3-1 | Iowa | Woodbury | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Story | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Neva Anderson Trust Dam | Iowa | Montgomery | 33 | Low | — | 2021 | Grade Stabilization |
| Reed Subwatershed Site 1-1 | Iowa | Monona | 33 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Mc Donald Subwatershed Site 5-2290 | Iowa | Woodbury | 33 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 29 | Iowa | Union | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Shelton Dam | Iowa | Lucas | 33 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mc Aninch Dam | Iowa | Warren | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Morf Dam | Iowa | Linn | 33 | Low | Not Rated | 2013 | Recreation |
| Walters Creek Watershed Site 44-1 | Iowa | Adams | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Robbins Dam | Iowa | Dallas | 33 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Whiskey Hollow Watershed - Lewis Site | Iowa | Louisa | 33 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Ballard Country Club Dam | Iowa | Story | 33 | Low | Satisfactory | 1974 | Irrigation |
| O Brien Dam | Iowa | Guthrie | 33 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Eldred Sherwood Park Lake Dam | Iowa | Hancock | 33 | Low | Not Rated | 1967 | Other |
| Bloom Dam | Iowa | Harrison | 33 | Low | Not Rated | 2006 | Fire Protection, Stock, Or ... |
| Simonsen Subwatershed Sta 142+42 Main | Iowa | Cherokee | 33 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Parnell Creek Subwatershed Site 20-2 | Iowa | Woodbury | 33 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-98 | Iowa | Appanoose | 33 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Soap Creek Watershed Site 4-113 | Iowa | Appanoose | 33 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Van Wyk/Vogel Dam | Iowa | Poweshiek | 33 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Miami Lake Sediment Control Dam Site 2 | Iowa | Monroe | 33 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Mucky Creek Subwatershed Sta 37+80 #8 | Iowa | Monona | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Jaeschke Dam | Iowa | Clarke | 33 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Lake Miami Sediment Basin - Middle Site | Iowa | Monroe | 33 | Low | Not Rated | 2000 | Grade Stabilization |
| Rock Creek Dam | Iowa | Jasper | 33 | Significant | Fair | — | Recreation |
| Twelve Mile Creek Watershed Site 40-1 | Iowa | Union | 33 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Finucan Dam | Iowa | Webster | 33 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 86-4 | Iowa | Audubon | 33 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Springer Dam | Iowa | Greene | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Reed Subwatershed Sta 97+82 | Iowa | Monona | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Iowa Noname41 | Iowa | Pottawattamie | 33 | Low | Not Rated | 1970 | 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.