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 |
|---|---|---|---|---|---|---|---|
| Deiber & Shook Dam | Iowa | Crawford | 31 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Trotter Dam | Iowa | Jasper | 31 | Low | Not Rated | 1971 | Recreation |
| Mchugh Dam | Iowa | Monona | 31 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Turkey Cr Watershed Site 39 | Iowa | Cass | 31 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| De Heer Reclamation Dam | Iowa | Marion | 31 | Low | Not Rated | 2004 | Recreation |
| Axtell Dam | Iowa | Jasper | 31 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Lake Colchester Dam | Iowa | Warren | 31 | Significant | Satisfactory | 1965 | Other |
| Mc Kenzie/Child Dam | Iowa | Pottawattamie | 31 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Crawford County Roadgrade Dam 33-83-38 | Iowa | Crawford | 31 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Lum Hollow Subwatershed M-8552 | Iowa | Woodbury | 31 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Akers Farms Dam | Iowa | Adair | 31 | Low | Not Rated | 2016 | Grade Stabilization |
| Triple B Dam 1 | Iowa | Jasper | 30 | Low | Not Rated | 1997 | Fish and Wildlife Pond |
| Lazy K Dam | Iowa | Crawford | 30 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Lakewood Dredge Spoil Dam | Iowa | Warren | 30 | Low | Not Rated | 1990 | Other |
| Monroe CO Roadgrade Site 7.5.4 | Iowa | Monroe | 30 | Low | Not Rated | 1985 | Other |
| Croy Subwatershed Site A3-1050 | Iowa | Monona | 30 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Shields & Laubscher Dam | Iowa | Crawford | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Turkey Creek Watershed Site 58d | Iowa | Cass | 30 | Low | Not Rated | 2004 | Grade Stabilization |
| Thayer Lake Dam | Iowa | Union | 30 | Low | Not Rated | 1930 | Recreation |
| Rodgers Park Lake Dam | Iowa | Benton | 30 | Significant | Fair | 1977 | Recreation |
| Shryock Dam | Iowa | Polk | 30 | Significant | Fair | 1963 | Fire Protection, Stock, Or ... |
| Rolling Hills Estate Dam - Jones County | Iowa | Jones | 30 | Low | Not Rated | 2006 | Recreation |
| Waubonsie Creek Watershed Sites M-5 | Iowa | Mills | 30 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Green Castle Dam | Iowa | Marshall | 30 | Significant | Satisfactory | 1954 | Recreation |
| Doty Dam | Iowa | Dallas | 30 | Significant | Satisfactory | 1961 | Fire Protection, Stock, Or ... |
| Kirkholm Subwatershed A-3700 | Iowa | Ida | 30 | Low | Not Rated | 1949 | Fire Protection, Stock, Or ... |
| Croy Subwatershed Site A3-4908 | Iowa | Monona | 30 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Lake Hendricks Dam | Iowa | Howard | 30 | Significant | Poor | 1960 | Recreation |
| Garst Warehouse CO Dam | Iowa | Guthrie | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Belva Deer Park Wetland Dam | Iowa | Keokuk | 30 | Low | Not Rated | 2001 | Fish and Wildlife Pond |
| Pony Creek Watershed Site 7 | Iowa | Mills | 30 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Bartlett Hills Lake Dam | Iowa | Mills | 30 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Mc Clellan/Leichty Dam | Iowa | Lee | 30 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site E-1 | Iowa | Taylor | 30 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Marak Dam | Iowa | Johnson | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Smith/Klingborg Dam | Iowa | Cherokee | 30 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Leonard Dam | Iowa | Johnson | 30 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Lannom Dam | Iowa | Poweshiek | 30 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Sidles Dam | Iowa | Appanoose | 30 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Nilan Dam | Iowa | Pottawattamie | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Ganzhorn Dam | Iowa | Harrison | 30 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Barber Hollow Subwtrshed Site 5-H-3865 | Iowa | Monona | 30 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Holsapple Dam | Iowa | Van Buren | 30 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Adair | 30 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Timberman Dam | Iowa | Pottawattamie | 30 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Ford Dam | Iowa | Warren | 30 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Mc Call Subwatershed Site M-3 | Iowa | Monona | 30 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Hopkins Dam | Iowa | Davis | 30 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Duer Dam | Iowa | Monroe | 30 | Low | Not Rated | 2000 | Grade Stabilization |
| Roeder Dam | Iowa | Tama | 30 | 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.