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 |
|---|---|---|---|---|---|---|---|
| Parnell Creek Subwatershed Site 15-2 | Iowa | Woodbury | 35 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mike Mikkelson Subwatershed 5-13484 | Iowa | Monona | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Mc Grew Brothers Dam | Iowa | Mills | 35 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-11 | Iowa | Crawford | 35 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Greenfield Dam | Iowa | Jefferson | 35 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-9 | Iowa | Crawford | 35 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Izzak Walton League Dam | Iowa | Wapello | 35 | Significant | Satisfactory | 1965 | Recreation |
| Haroldsen Dam | Iowa | Buena Vista | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Dessel Dam | Iowa | Cherokee | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Framton Farms -Site 2 Dam | Iowa | Madison | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Wolf Creek Subwatershed Site 3-2 | Iowa | Woodbury | 35 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Wenger Dam | Iowa | Washington | 35 | Low | Not Rated | 2005 | Grade Stabilization |
| Pleasant Valley Subwtrshd #1 Sta 53+70 | Iowa | Ida | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Pemble Dam | Iowa | Greene | 35 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Klockgether Dam | Iowa | Crawford | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Arrowhead Investments Dam | Iowa | Madison | 35 | Low | — | 2020 | Grade Stabilization |
| Four-H Recreation Dam | Iowa | Louisa | 35 | Low | Not Rated | 1977 | Recreation |
| Williams Dam | Iowa | Plymouth | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Deutsch Dam | Iowa | Marshall | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site I-1 | Iowa | Harrison | 35 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Decatur | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Folkerts Dam | Iowa | Lyon | 35 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 30 | Iowa | Union | 35 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Saxton Dam #2 | Iowa | Decatur | 35 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Jarrett Dam | Iowa | Des Moines | 35 | Low | — | 2023 | Grade Stabilization |
| Hickory Glen Park Dam | Iowa | Polk | 35 | Significant | Satisfactory | 2019 | Recreation |
| Panorama Silt Dam Site 2 | Iowa | Guthrie | 35 | Low | Not Rated | 1988 | Other |
| Miami Lake Sediment Control Dam Site 1 | Iowa | Monroe | 35 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Klein Dam | Iowa | Marion | 35 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Rodney Subwatershed Site 8-2 | Iowa | Monona | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Young Dam | Iowa | Madison | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Carrier Dam | Iowa | Lee | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Troublesome Creek Watershed Site 78-4 | Iowa | Cass | 35 | Low | Not Rated | 1999 | Grade Stabilization |
| Quastad Dam | Iowa | Emmet | 35 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Kent Dam | Iowa | Lucas | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site F-1 | Iowa | Crawford | 35 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site M-15543 | Iowa | Woodbury | 35 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Allen- Ewing Dam | Iowa | Wayne | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Brantley Dam | Iowa | Lucas | 35 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| East Aldrich Subwatershed B-6603 | Iowa | Ida | 35 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Woods Hollow Subwatershed Sta 40+42 | Iowa | Monona | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Little Egypt Subwatershed 5-4730 | Iowa | Woodbury | 35 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Joe Sinclair Dam | Iowa | Monroe | 35 | Low | — | 2018 | Water Supply |
| Danilson Dam | Iowa | Boone | 35 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Grau Dam | Iowa | Crawford | 34 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Jorgenson Dam | Iowa | Guthrie | 34 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| West Sunnyside Watershed Site C-1-1 | Iowa | Plymouth | 34 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Reinert Dam | Iowa | Cherokee | 34 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 19-21 | Iowa | Cass | 34 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Hound Dog Watershed Site B-8 | Iowa | Fremont | 34 | Low | Not Rated | 1963 | 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.