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 |
|---|---|---|---|---|---|---|---|
| Mill Picayune Watershed Site M-27-1 | Iowa | Crawford | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Leech Hollow Subwatershed Site C-6 | Iowa | Monona | 40 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Coberly/Swenson Dam | Iowa | Monona | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Diamond Lake Dam (Poweshiek Co) | Iowa | Poweshiek | 40 | Significant | Satisfactory | 1952 | Water Supply |
| Mosquito Creek Watershed Site 6-2 | Iowa | Harrison | 40 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Van Sickle Dam | Iowa | Boone | 40 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 24 | Iowa | Mills | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Kennedy & Johns Dam | Iowa | Plymouth | 40 | Significant | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Mc Dowel Dam #1 | Iowa | Lee | 40 | Significant | Satisfactory | 1967 | Recreation |
| Elliot Dam | Iowa | Dallas | 40 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Springbrook Lake Dam | Iowa | Guthrie | 40 | Significant | Satisfactory | 1934 | Recreation |
| Heisler Creek Subwtrshd Sta 29+80 #3d | Iowa | Woodbury | 40 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Dakins Lake Dam | Iowa | Story | 40 | Significant | Fair | 2014 | Recreation |
| Beach Dam | Iowa | Henry | 40 | Low | Not Rated | 1975 | Recreation |
| Soap Creek Watershed Site 4-57a | Iowa | Appanoose | 40 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Lauterbach Dam | Iowa | Dallas | 40 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 11 | Iowa | Montgomery | 40 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison Watershed Site 7-4 | Iowa | Harrison | 40 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Pierce Creek No 1 Watershed Site 5 | Iowa | Page | 40 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Camp Creek Subwatershed Site 1-2 | Iowa | Woodbury | 40 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Nelson/Petersen Dam | Iowa | Audubon | 40 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Crawford Creek Subwatershed Site M-2 | Iowa | Ida | 40 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-24-17 | Iowa | Shelby | 40 | Significant | Satisfactory | 1984 | Fire Protection, Stock, Or ... |
| Rolling Hills Dam #2 | Iowa | Story | 40 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Huff Subwatershed 3-6069 | Iowa | Monona | 40 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Iowa Select Farms Dam | Iowa | Union | 40 | Low | Not Rated | 1997 | Water Supply |
| Mill Picayune Watershed Site M-24-14 | Iowa | Shelby | 40 | Significant | Satisfactory | 1961 | Fire Protection, Stock, Or ... |
| Fridley Dam | Iowa | Warren | 40 | Low | Not Rated | 1977 | Recreation |
| Little Beaver Subwatershed M-16730 | Iowa | Woodbury | 40 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Iowa Noname43 | Iowa | Pottawattamie | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Neustrom Subwatershed Site 19-3 | Iowa | Woodbury | 40 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Iowa Noname6 | Iowa | Boone | 40 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Fairfield Water Works Dam No 1 | Iowa | Jefferson | 40 | Significant | Satisfactory | 1888 | Water Supply |
| Sun Valley Lake Sediment Basin | Iowa | Ringgold | 40 | Significant | - | 2019 | Other |
| Walling Subwatershed Sta 99+70 #1 | Iowa | Woodbury | 40 | Low | Not Rated | 1953 | Other |
| Conley Dam | Iowa | Cherokee | 40 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site N-13-2 | Iowa | Harrison | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-1-3 | Iowa | Woodbury | 40 | Significant | Satisfactory | 1981 | Fire Protection, Stock, Or ... |
| Mosquito of Harrison Watershed Site 5-3 | Iowa | Harrison | 40 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Waterford Pond Dam | Iowa | Polk | 40 | Low | Fair | 1966 | Fire Protection, Stock, Or ... |
| Waubonsie Cr. Watershed Site 39 | Iowa | Mills | 40 | Low | Not Rated | 1983 | Fire Protection, Stock, Or ... |
| Dawson Dam | Iowa | Des Moines | 40 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Gant Creek Watershed Site A-2 | Iowa | Plymouth | 40 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Baker Subwatershed Site 5-3 | Iowa | Monona | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Held Watershed Site D-1 | Iowa | Plymouth | 40 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Wolf Creek Subwatershed Site 5a-1 | Iowa | Woodbury | 40 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Page | 40 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-24-2 | Iowa | Crawford | 40 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 26-55 | Iowa | Davis | 40 | Low | Not Rated | 2007 | Grade Stabilization |
| Heishman Dam | Iowa | Poweshiek | 40 | Low | Not Rated | 2017 | Recreation |
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.