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 |
|---|---|---|---|---|---|---|---|
| E&H Farms Dam | Iowa | Jefferson | 34 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Westside Subwatershed Site 3-2 | Iowa | Ida | 34 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Whiskey Hollow Watershed - Bell Site | Iowa | Louisa | 34 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Madsen Dam | Iowa | Marshall | 34 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Saylorville Wildlife Area Dam | Iowa | Dallas | 34 | Low | Not Rated | - | Fish and Wildlife Pond |
| Kruse Dam | Iowa | Calhoun | 34 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Crumly Dam | Iowa | Muscatine | 34 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Knapp Dam | Iowa | Fremont | 34 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| David Downey Dam | Iowa | Union | 34 | Low | Not Rated | 2013 | Grade Stabilization |
| Reinert Dam | Iowa | Cherokee | 34 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Jett Subwatershed Site M-2 | Iowa | Woodbury | 34 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-65 | Iowa | Davis | 34 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Little Paint Creek Watershed Site 200 | Iowa | Allamakee | 34 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| U-B Subwatershed Site 2c-1 | Iowa | Monona | 34 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-29-1 | Iowa | Crawford | 34 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Knop Dam | Iowa | Ida | 34 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Arcola Subwatershed Site B-3000 | Iowa | Monona | 34 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 47 | Iowa | Cass | 34 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Jon Bix Dam | Iowa | Page | 34 | Low | - | 2023 | Grade Stabilization |
| Jungman Dam | Iowa | Dallas | 34 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site G-1 | Iowa | Harrison | 34 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Oakland Acres Dam | Iowa | Jasper | 34 | Low | Not Rated | 1972 | Recreation |
| Readhead Dam | Iowa | Story | 34 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Lacey Dam | Iowa | Crawford | 34 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Moeller Dam | Iowa | Crawford | 34 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Alfred Dam | Iowa | Wayne | 34 | Low | Not Rated | 2005 | |
| Boeck Dam | Iowa | Crawford | 34 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Forinash & Lundberg Dam | Iowa | Warren | 34 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Crawford Creek Subwatershed Site 12b-1 | Iowa | Ida | 34 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| West Sunnyside Watershed Site E-1 | Iowa | Plymouth | 34 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| English Bench Watershed Site 8 | Iowa | Allamakee | 34 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Seippel Road Dam | Iowa | Dubuque | 34 | Significant | Not Rated | 2000 | Flood Risk Reduction |
| Jenkins Dam | Iowa | Warren | 34 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Bennett Lake Dam | Iowa | Cedar | 34 | Low | Not Rated | 1968 | Recreation |
| Wayne Co. Roadgrade Dam - Clow Site | Iowa | Wayne | 34 | Significant | Satisfactory | 1996 | Other |
| Little Beaver Subwatershed 2-15127 | Iowa | Woodbury | 34 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Ls Janet Lindgren | Iowa | Ida | 34 | Low | - | 1998 | Grade Stabilization |
| Troublesome Creek Watershed Site 85-2 | Iowa | Audubon | 34 | Low | Not Rated | 2003 | Grade Stabilization |
| Greene County Dam | Iowa | Greene | 34 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Keenen Dam | Iowa | Jasper | 34 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Woodbury | 34 | Significant | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Smith (Steve) Dam | Iowa | Harrison | 34 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Jalas Dam | Iowa | O'Brien | 34 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Seed Savers Dam | Iowa | Winneshiek | 34 | Low | - | 2021 | Flood Risk Reduction |
| Hickory Lake Dam | Iowa | Polk | 34 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Heisler Creek Subwtrshd Sta 46+80 #3d | Iowa | Woodbury | 34 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Teeples Dam | Iowa | Greene | 34 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site E-2 | Iowa | Taylor | 34 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Bitter Creek Subwatershed Site E-2 | Iowa | Woodbury | 34 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| 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.