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 |
|---|---|---|---|---|---|---|---|
| Mosquito Creek Watershed Site 6-5 | Iowa | Harrison | 47 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Swine Graphics Dam #2 | Iowa | Clarke | 47 | Low | Not Rated | 2005 | Water Supply |
| Arrowhead Lake Dam | Iowa | Pottawattamie | 47 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Waubonsie Cr. Watershed Site 9-1 | Iowa | Mills | 47 | Low | Not Rated | 1976 | Other |
| Waubonsie Cr. Watershed Site 3-7 | Iowa | Mills | 47 | Significant | Satisfactory | 1989 | Fire Protection, Stock, Or ... |
| Windy Hill Subwatershed Site 5b-1 | Iowa | Woodbury | 47 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Sunrise Subwatershed Site 6-1 | Iowa | Woodbury | 47 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Davis Subwatershed M-3398 | Iowa | Woodbury | 47 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site A-2-3 | Iowa | Woodbury | 47 | Significant | Poor | 1978 | Flood Risk Reduction |
| Mill Picayune Watershed Site M-29-2 | Iowa | Crawford | 47 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Mc Call Subwatershed Site M-2 | Iowa | Monona | 47 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Lake Darling Dam | Iowa | Washington | 47 | Significant | Satisfactory | 1950 | Recreation |
| Gant Creek Watershed Site D-5 | Iowa | Plymouth | 47 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Burlington Y-Camp Dam | Iowa | Des Moines | 47 | Low | Satisfactory | 1966 | Recreation |
| Waubonsie Cr. Watershed Site 36-3 | Iowa | Mills | 47 | Low | Not Rated | 1983 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-14-1 | Iowa | Shelby | 47 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Lacey-Keosaqua Park Lake Dam | Iowa | Van Buren | 47 | Low | Satisfactory | 1930 | Recreation |
| Mississippi River Lock and Dam 17 | Iowa | Mercer | 47 | Significant | Not Available | 1939 | Navigation |
| Heritage Point Lake Dam | Iowa | Wayne | 47 | Significant | Satisfactory | 1971 | Fire Protection, Stock, Or ... |
| Emerald Valley Dam | Iowa | Clayton | 47 | Significant | Satisfactory | 2008 | Recreation |
| Big Coon Subwatershed Site 2-10a | Iowa | Woodbury | 47 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site P-47-4 | Iowa | Shelby | 47 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Marion County Roadgrade Dam 25-76-19 | Iowa | Marion | 47 | Low | Not Rated | 1964 | Other |
| English Bench Watershed Site 5 | Iowa | Allamakee | 47 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Iowa Noname34 | Iowa | O'Brien | 46 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Mosquito Creek Watershed Site 6-1 | Iowa | Harrison | 46 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site L-3 | Iowa | Woodbury | 46 | Low | Not Rated | 1976 | Flood Risk Reduction |
| Heisler Creek Subwtrshd Sta 39+84 #3 | Iowa | Woodbury | 46 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Leutzinger-Lowe Watershed Site M-1 | Iowa | Muscatine | 46 | Significant | Satisfactory | 1971 | Flood Risk Reduction |
| Mormon Trail Lake Dam | Iowa | Adair | 46 | Low | Satisfactory | 1965 | Recreation |
| Little Egypt Subwatershed 9-2670 | Iowa | Woodbury | 46 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 34 | Iowa | Mills | 46 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Held Watershed Site A-2 | Iowa | Plymouth | 46 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Camp Creek Subwatershed Site M-2a | Iowa | Woodbury | 46 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Draper Dam | Iowa | Fremont | 46 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Little Sioux Scout Ranch Dam | Iowa | Monona | 46 | Low | Not Rated | 1974 | Recreation |
| Brown Deer Golf Course Dam | Iowa | Johnson | 46 | Significant | Satisfactory | 1970 | Recreation |
| Wingert/Freymann Dam | Iowa | Plymouth | 46 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Lake Meyer Dam | Iowa | Winneshiek | 46 | Significant | Fair | 1966 | Recreation |
| Davis-Battle Cr. Watershed Site D-3 | Iowa | Monona | 46 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-8 | Iowa | Shelby | 46 | Significant | Fair | 1963 | Fire Protection, Stock, Or ... |
| Croy Subwatershed Site 2530 | Iowa | Monona | 46 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site J-1 | Iowa | Woodbury | 46 | Significant | Satisfactory | 1984 | Flood Risk Reduction |
| Mule Creek Watershed Sta 60+00 | Iowa | Mills | 46 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Harmony Creek Watershed Site 4 | Iowa | Harrison | 46 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-3-2 | Iowa | Woodbury | 46 | Significant | Satisfactory | 1984 | Flood Risk Reduction |
| Badger Creek Watershed Site M-1-A | Iowa | Madison | 46 | Significant | Satisfactory | 1980 | Recreation |
| Dane Ridge Watershed Site C-5 | Iowa | Crawford | 46 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Harris Dam | Iowa | Guthrie | 46 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Waubonsie Cr. Watershed Site 3-1 | Iowa | Fremont | 46 | Low | Not Rated | 1985 | 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.