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 |
|---|---|---|---|---|---|---|---|
| Little River Watershed Site M-1 | Iowa | Decatur | 61 | High | Satisfactory | 1984 | Flood Risk Reduction |
| Pony Creek Watershed Site 10 | Iowa | Mills | 60 | Significant | Satisfactory | 1966 | Fire Protection, Stock, Or ... |
| Roberts Creek Dam | Iowa | Marion | 60 | Significant | Fair | 1968 | Recreation |
| Davis-Battle Cr. Watershed Site C-12-1 | Iowa | Monona | 60 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Big Hollow Dam | Iowa | Des Moines | 60 | Significant | Satisfactory | 2008 | Recreation |
| Andresen/Coberly Dam | Iowa | Monona | 60 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Upper Beaver Subwatershed Site M-1 | Iowa | Monona | 60 | Low | Poor | 1967 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 9 | Iowa | Mills | 60 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 9 | Iowa | Pottawattamie | 60 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-2-1 | Iowa | Woodbury | 59 | Significant | Satisfactory | 1981 | Flood Risk Reduction |
| Smokey Hollow Subwatershed Site 1 | Iowa | Woodbury | 59 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Geode Lake Dam | Iowa | Des Moines | 59 | Significant | Satisfactory | 1949 | Recreation |
| Lauman Dam | Iowa | Fremont | 59 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 10-1 | Iowa | Pottawattamie | 59 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Yellowsmoke Park Dam | Iowa | Crawford | 59 | High | Satisfactory | 1980 | Recreation |
| Smokey Hollow Subwatershed Site 3 | Iowa | Woodbury | 58 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Arbor Valley Lake Dam | Iowa | Clarke | 58 | High | Satisfactory | 2008 | Recreation |
| Gant Creek Watershed Site A-5 | Iowa | Plymouth | 58 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Little Egypt Subwatershed 4-2772 | Iowa | Woodbury | 58 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Samuels Dam | Iowa | Madison | 58 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Rager Dam | Iowa | Harrison | 58 | Low | Not Rated | 2011 | Flood Risk Reduction |
| North Pigeon Cr Watershed Site M-3 | Iowa | Pottawattamie | 58 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| West Lake Dam | Iowa | Clarke | 58 | Significant | Satisfactory | 1935 | Water Supply |
| Dunham Dam | Iowa | Crawford | 58 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site E-1 | Iowa | Monona | 58 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Leisure Lake Dam | Iowa | Jackson | 58 | High | Fair | 1958 | Recreation |
| Don Williams Lake Dam | Iowa | Boone | 58 | Significant | Satisfactory | 1965 | Recreation |
| Bacon Creek Watershed Site A-1 | Iowa | Woodbury | 58 | Low | Not Rated | 1978 | Flood Risk Reduction |
| North Woods Lake Dam | Iowa | Decatur | 57 | Significant | Satisfactory | 1993 | Water Supply |
| Timber Lakes Estate Dam | Iowa | Scott | 57 | Significant | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Savery/Welliver Dam | Iowa | Monona | 57 | Low | Fair | 1966 | Fire Protection, Stock, Or ... |
| Weatherly/Haight Dam | Iowa | Harrison | 57 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Lake Wapello Dam | Iowa | Davis | 57 | Significant | Satisfactory | 1934 | Recreation |
| South Magnolia Watershed Site 1 | Iowa | Harrison | 57 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 4-1 | Iowa | Pottawattamie | 57 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Hickory Grove Lake Dam | Iowa | Story | 56 | Significant | Satisfactory | 1966 | Recreation |
| Lake Macbride Dam | Iowa | Johnson | 56 | Significant | Satisfactory | 1930 | Recreation |
| Lake Icaria Dam (Site M-1-A Walters Cr) | Iowa | Adams | 56 | Significant | Satisfactory | 1974 | Flood Risk Reduction |
| Mc Call Subwatershed Site M-1 | Iowa | Monona | 56 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Leech Hollow Subwatershed Site C-2 | Iowa | Monona | 56 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 12-1 | Iowa | Pottawattamie | 56 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| West Fork #3 Subwtrshd Sta 37+14 #9 | Iowa | Woodbury | 55 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Lake Delhi Dam | Iowa | Delaware | 55 | Significant | Satisfactory | 1922 | Recreation |
| Deer Creek Dam | Iowa | Plymouth | 55 | High | Satisfactory | 1995 | Recreation |
| Prairie Rose Lake Dam | Iowa | Shelby | 55 | Significant | Satisfactory | 1960 | Recreation |
| Lum Hollow Subwatershed M-3847 | Iowa | Woodbury | 55 | Low | Not Rated | 1959 | Other |
| Hamburg Watershed Site M-1 | Iowa | Fremont | 55 | High | Satisfactory | 1961 | Flood Risk Reduction |
| Lake Belva Deer Dam | Iowa | Keokuk | 55 | Significant | Satisfactory | 2001 | Recreation |
| Bacon Creek Watershed Site A-2-1 | Iowa | Woodbury | 55 | Significant | Poor | 1978 | Flood Risk Reduction |
| Bacon Creek Watershed Site H-3-1 | Iowa | Woodbury | 55 | Significant | Satisfactory | 1984 | 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.