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 |
|---|---|---|---|---|---|---|---|
| Weber Creek Subwatershed Site 2-3225 | Iowa | Woodbury | 42 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Daly Dam | Iowa | Monona | 42 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Little Whiskey Subwatershed Site M-2 | Iowa | Woodbury | 42 | Significant | Satisfactory | 1990 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site B-2 | Iowa | Crawford | 42 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Rush Dam | Iowa | Warren | 42 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Good/Johnson Dam | Iowa | Mills | 42 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Turner Dam | Iowa | Crawford | 42 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site H-3 | Iowa | Monona | 42 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site M-3 | Iowa | Woodbury | 42 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Polk County Roadgrade Dam 21-78-22 | Iowa | Polk | 41 | Low | Not Rated | 1992 | Other |
| Grand River Cattle Dam | Iowa | Decatur | 41 | Low | Not Rated | 2007 | Water Supply |
| Mucky Creek Subwatershed Sta 28+50 #2 | Iowa | Monona | 41 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Brummer Dam | Iowa | Harrison | 41 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Strunk Dam | Iowa | Lee | 41 | Low | Not Rated | 1900 | Fire Protection, Stock, Or ... |
| Crawford CO Roadgrade Dam 34-84-39 | Iowa | Crawford | 41 | Low | Not Rated | 2002 | Grade Stabilization |
| Hound Dog Watershed Site B-2 | Iowa | Fremont | 41 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Koski Dam | Iowa | Harrison | 41 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Dutch Hollow Subwatershed Site 1a-1 | Iowa | Woodbury | 41 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| East Lake Dam | Iowa | Clarke | 41 | Significant | Satisfactory | 1915 | Water Supply |
| Reinert Dam | Iowa | Mills | 41 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site C-1 | Iowa | Woodbury | 41 | High | Satisfactory | 1976 | Flood Risk Reduction |
| Mill Picayune Watershed Site P-1 | Iowa | Shelby | 41 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Big Coon Subwatershed Site 3-3 | Iowa | Woodbury | 41 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Carter Road Stormwater Detention Dam | Iowa | Dubuque | 41 | High | Fair | 2004 | Recreation |
| Bengal Dam | Iowa | Plymouth | 41 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Mortenson Subwatershed Sta99+92 Main | Iowa | Cherokee | 41 | Low | Not Rated | 1950 | Fire Protection, Stock, Or ... |
| Winner Dam | Iowa | Harrison | 41 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Mc Call Subwatershed Site 30-1 | Iowa | Monona | 41 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Reed Subwatershed Site 13c-2232 | Iowa | Monona | 41 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site 5-4460 | Iowa | Woodbury | 41 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Focht & Schindel Dam | Iowa | Plymouth | 41 | High | Fair | 1970 | Fire Protection, Stock, Or ... |
| Powers Dam | Iowa | Mills | 41 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Hound Dog Watershed Site B-4 | Iowa | Fremont | 41 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Cord Subwatershed M-7234 | Iowa | Woodbury | 41 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Scharnberg Dam | Iowa | Warren | 41 | Low | Not Rated | 2007 | Recreation |
| Green Valley Lake Dam | Iowa | Union | 41 | Significant | Fair | 1953 | Recreation |
| Dane Ridge Watershed Site D-1-7 | Iowa | Crawford | 41 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mud Creek Subwatershed Site 15-2 | Iowa | Plymouth | 41 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Schoenewe Dam | Iowa | Des Moines | 41 | High | Poor | 1978 | Recreation |
| Collier Dam | Iowa | Harrison | 41 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site A-3 | Iowa | Crawford | 41 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| West Lakes Office Park Dam | Iowa | Polk | 41 | High | Satisfactory | 1990 | Flood Risk Reduction |
| Simpson Creek Watershed Site 4 | Iowa | Fremont | 41 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site S-5 | Iowa | Taylor | 41 | Significant | Satisfactory | 1993 | Flood Risk Reduction |
| Hound Dog Watershed Site B-1 | Iowa | Fremont | 41 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Sioux Rapids Golf Club Dam | Iowa | Buena Vista | 41 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Simon Run Watershed Site 4-2 | Iowa | Pottawattamie | 41 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Gross/Freund Dam | Iowa | Shelby | 41 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-80 | Iowa | Monroe | 41 | Low | Not Rated | 2009 | Flood Risk Reduction |
| Hound Dog Watershed Site B-6 | Iowa | Fremont | 41 | 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.