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 |
|---|---|---|---|---|---|---|---|
| Elkhorn No.2 Subwatershed Site 1-3 | Iowa | Plymouth | 36 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Indian Creek-Van Buren Watershed Site 27 | Iowa | Van Buren | 36 | Significant | Satisfactory | 1990 | Flood Risk Reduction |
| Arnold Lake Dam | Iowa | Story | 36 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Simpson Creek Watershed Site 5 | Iowa | Fremont | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Iowa Noname95 | Iowa | Wayne | 36 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Johnston Dam | Iowa | Marion | 36 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 15-3 | Iowa | Adams | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Twelvemile Watershed Site D-60 | Iowa | Union | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Naylor Dam | Iowa | Mahaska | 35 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-83 | Iowa | Wapello | 35 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Lake Huntington | Iowa | Scott | 35 | Significant | Fair | 1971 | Recreation |
| Troublesome Cr Watershed Site 21-1 | Iowa | Cass | 35 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 42 | Iowa | Union | 35 | Low | Not Rated | 1970 | Other |
| Quastad Dam | Iowa | Emmet | 35 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Schoor Dam | Iowa | Pottawattamie | 35 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Izzak Walton League Dam | Iowa | Wapello | 35 | Significant | Satisfactory | 1965 | Recreation |
| Carrier Dam | Iowa | Lee | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| West Wolf Creek Subwatershed Site 12l | Iowa | Woodbury | 35 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-61 | Iowa | Monroe | 35 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Lake of Three Fire Dredge Spoil Contianment Dam | Iowa | Taylor | 35 | Low | Not Rated | 2003 | Other |
| Troublesome Creek Watershed Site 78-4 | Iowa | Cass | 35 | Low | Not Rated | 1999 | Grade Stabilization |
| East Aldrich Subwatershed B-6603 | Iowa | Ida | 35 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site 1-3 | Iowa | Woodbury | 35 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Wiechmann/Rooks Dam | Iowa | Hardin | 35 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Gothier No.2 Subwatershed M-10840 | Iowa | Woodbury | 35 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Warner Dam | Iowa | Wapello | 35 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site C-3 | Iowa | Crawford | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Miller & Stender Dam | Iowa | Crawford | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Polk County Roadgrade Dam 5-80-22 | Iowa | Polk | 35 | Low | Not Rated | 1996 | Other |
| Framton Farms -Site 2 Dam | Iowa | Madison | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Staley & Rae Dam | Iowa | Crawford | 35 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-9 | Iowa | Crawford | 35 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site P-4 | Iowa | Shelby | 35 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Pleasant Valley Subwtrshd #1 Sta 53+70 | Iowa | Ida | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Klockgether Dam | Iowa | Crawford | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Mule Creek Watershed Sta 56+03 | Iowa | Mills | 35 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Decatur | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Allen- Ewing Dam | Iowa | Wayne | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-24-7 | Iowa | Shelby | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Thomas Dam | Iowa | Cherokee | 35 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Greenfield Dam | Iowa | Jefferson | 35 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Bear Creek Watershed Site 25 | Iowa | Winneshiek | 35 | Low | Not Rated | 2000 | Flood Risk Reduction |
| Mule Creek Watershed Sta 30+00 | Iowa | Mills | 35 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Deutsch Dam | Iowa | Marshall | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Hannen Lake Dam | Iowa | Benton | 35 | Significant | Satisfactory | 1959 | Recreation |
| Klein Dam | Iowa | Marion | 35 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| G&R Farms Dam | Iowa | Washington | 35 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Wenger Dam | Iowa | Washington | 35 | Low | Not Rated | 2005 | Grade Stabilization |
| Buckmaster Dam | Iowa | Allamakee | 35 | Low | — | 1967 | Grade Stabilization |
| Rodney Subwatershed Site 12-2 | Iowa | Monona | 35 | Low | Not Rated | 1969 | 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.