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 |
|---|---|---|---|---|---|---|---|
| Freiler Dam | Iowa | Guthrie | 27 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Strathman Dam | Iowa | Davis | 27 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Robinson Dam | Iowa | Mahaska | 27 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Millenkamp Dam | Iowa | Delaware | 27 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Messerschmitt Dam | Iowa | Wapello | 27 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Zimmerman Dam | Iowa | Warren | 27 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Cibula Dam | Iowa | Tama | 27 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Gatrel Dam | Iowa | Warren | 27 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Herzberg Dam | Iowa | Taylor | 27 | Low | - | 2020 | Grade Stabilization |
| Tweedy Farms Dam | Iowa | Lee | 27 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Dykes Dam | Iowa | Davis | 27 | Low | Not Rated | 2010 | Grade Stabilization |
| Rehse Dam | Iowa | Ida | 27 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Stevenson Dam | Iowa | Mills | 27 | Low | - | 2023 | Grade Stabilization |
| Whitehall Dam | Iowa | Fremont | 27 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Shirley Dam | Iowa | Fremont | 27 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Price Dam | Iowa | Appanoose | 27 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Wuthrich Dam | Iowa | Davis | 27 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Erickson Dam | Iowa | Harrison | 27 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Jenkins Dam | Iowa | Marion | 27 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Allensworth Dam | Iowa | Montgomery | 27 | Low | - | 2024 | Grade Stabilization |
| Stamp Dam | Iowa | Jackson | 27 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Rubenbauer Dam | Iowa | Tama | 27 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Thomson Dam | Iowa | Crawford | 27 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Malone Dam | Iowa | Crawford | 27 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Waterhouse Dam | Iowa | Washington | 27 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Mc Aninch Dam | Iowa | Warren | 27 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Newby Dam | Iowa | Hardin | 27 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Marlay Dam | Iowa | Van Buren | 27 | Low | Not Rated | 1999 | Grade Stabilization |
| Elmore Dam | Iowa | Jefferson | 27 | Low | Not Rated | 2003 | Fish and Wildlife Pond |
| Jones Dam | Iowa | Decatur | 27 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Freese Dam | Iowa | Wayne | 27 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Sloan Dam | Iowa | Polk | 27 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Massner Dam | Iowa | Louisa | 27 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Cozad Dam | Iowa | Clarke | 27 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Wittstock Dam | Iowa | Union | 27 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Dalton Dam | Iowa | Taylor | 27 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Woody Dam | Iowa | Jefferson | 27 | Low | Not Rated | 2003 | Fish and Wildlife Pond |
| Wilkinson Dam | Iowa | Poweshiek | 27 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Shelton Dam | Iowa | Lucas | 27 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Frey Dam | Iowa | Taylor | 27 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Cummings Farm Dam | Iowa | Marion | 27 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Griggs Dam | Iowa | Washington | 27 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Argotsinger Dam | Iowa | Crawford | 27 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Hughes Dam | Iowa | Poweshiek | 27 | Low | Not Rated | 2010 | Grade Stabilization |
| Johnson Dam | Iowa | Pottawattamie | 27 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Cole Dam | Iowa | Jefferson | 27 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Iowa Noname71 | Iowa | Guthrie | 27 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Gray Dam | Iowa | Tama | 27 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Iowa Noname63 | Iowa | Washington | 27 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Lint Dam | Iowa | Van Buren | 27 | Low | Not Rated | 1996 | 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.