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 |
|---|---|---|---|---|---|---|---|
| Smith Dam | Iowa | Cherokee | 42 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Schoening Dam | Iowa | Mills | 42 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Turner Dam | Iowa | Crawford | 42 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Pierce Creek No 1 Watershed Site 10 | Iowa | Page | 42 | Significant | Satisfactory | 1969 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 7-1 | Iowa | Pottawattamie | 42 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Daly Dam | Iowa | Monona | 42 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Wayne Co. Roadgrade Dam 21-67-22 | Iowa | Wayne | 42 | Significant | Satisfactory | 1996 | Other |
| Lake Keomah Dam | Iowa | Mahaska | 42 | Significant | Satisfactory | 1935 | Recreation |
| Wohlers Dam | Iowa | Pottawattamie | 42 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Greenfield Reservoir Dam | Iowa | Adair | 42 | High | Satisfactory | 1979 | Water Supply |
| Woodbury County Roadgrade Dam 36-86-42 | Iowa | Woodbury | 42 | Significant | Satisfactory | 1990 | Other |
| Good/Johnson Dam | Iowa | Mills | 42 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Harper Century Farm Dam | Iowa | Harrison | 42 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Held Watershed Site D-7 | Iowa | Plymouth | 42 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Zaugg Dam | Iowa | Pocahontas | 42 | Low | Poor | 1998 | Flood Risk Reduction |
| Iowa Noname40 | Iowa | Pottawattamie | 42 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Clubine Dam | Iowa | Monona | 42 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Wagner Dam | Iowa | Des Moines | 42 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Twin Anchors Lake Dam | Iowa | Story | 42 | Low | Not Rated | 1960 | Recreation |
| Bluff Creek Reclamation Dam | Iowa | Monroe | 42 | Low | Not Rated | 2004 | Recreation |
| Windy Hill Subwatershed Site 3-2 | Iowa | Woodbury | 42 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site H-3 | Iowa | Monona | 42 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Black Dam | Iowa | Story | 42 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Charles Woods Lake Dam | Iowa | Monona | 42 | Low | Not Rated | 1974 | Recreation |
| Big Coon Subwatershed Site D-2-1 | Iowa | Woodbury | 42 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| West Douglas Watershed Site L-7 | Iowa | Adams | 42 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site M-3 | Iowa | Woodbury | 42 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Weber Creek Subwatershed Site 2-3225 | Iowa | Woodbury | 42 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Waubonsie Cr. Watershed Site 3-1-3 | Iowa | Fremont | 42 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Zellmer Subwatershed Site J-1a | Iowa | Woodbury | 42 | Low | Not Rated | 2002 | Flood Risk Reduction |
| Little Paint Creek Watershed Site 206a | Iowa | Allamakee | 42 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Banks Dam | Iowa | Plymouth | 42 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Rush Dam | Iowa | Warren | 42 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Mc Intosh Dam | Iowa | Harrison | 42 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Goeser Dam | Iowa | Crawford | 42 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site C-1 | Iowa | Crawford | 42 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Upper Pine Lake Dam | Iowa | Hardin | 42 | Significant | Satisfactory | 1934 | Recreation |
| Zellmer Subwtrshd Sta 31+70 #M | Iowa | Woodbury | 42 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Swanger Dam | Iowa | Woodbury | 42 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Casper Reclamation Dam | Iowa | Madison | 42 | Low | Not Rated | 1998 | Other |
| Mc Masters Subwatershed 3907 | Iowa | Monona | 42 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site 4-1 | Iowa | Woodbury | 42 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Bitter Creek Subwatershed Site 3-1 | Iowa | Ida | 42 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Little Whiskey Subwatershed Site M-2 | Iowa | Woodbury | 42 | Significant | Satisfactory | 1990 | Fire Protection, Stock, Or ... |
| Thorn Tree Dam | Iowa | Warren | 42 | Low | Not Rated | 1997 | Recreation |
| Turkey Cr Watershed Site 55d | Iowa | Cass | 42 | Significant | Satisfactory | 1994 | Flood Risk Reduction |
| Waubonsie Cr. Watershed Site M-1 | Iowa | Mills | 42 | Significant | Satisfactory | 1978 | Other |
| Mucky Creek Subwatershed Sta 19+20 | Iowa | Monona | 42 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Hull Reclamation Site 10 | Iowa | Mahaska | 42 | Low | Not Rated | 1988 | Recreation |
| Jefferson Park Watershed Site 3 | Iowa | Wapello | 42 | High | Satisfactory | 1976 | Flood Risk Reduction |
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.