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 |
|---|---|---|---|---|---|---|---|
| Iowa Noname49 | Iowa | Sioux | 61 | Low | Not Rated | 1966 | Other |
| North Pigeon Cr Watershed Site 9 | Iowa | Pottawattamie | 60 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 9 | Iowa | Mills | 60 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Upper Beaver Subwatershed Site M-1 | Iowa | Monona | 60 | Low | Poor | 1967 | Fire Protection, Stock, Or ... |
| Roberts Creek Dam | Iowa | Marion | 60 | Significant | Fair | 1968 | Recreation |
| Andresen/Coberly Dam | Iowa | Monona | 60 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| 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 |
| Pony Creek Watershed Site 10 | Iowa | Mills | 60 | Significant | Satisfactory | 1966 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-2-1 | Iowa | Woodbury | 59 | Significant | Satisfactory | 1981 | Flood Risk Reduction |
| Yellowsmoke Park Dam | Iowa | Crawford | 59 | High | Satisfactory | 1980 | Recreation |
| Geode Lake Dam | Iowa | Des Moines | 59 | Significant | Satisfactory | 1949 | Recreation |
| Smokey Hollow Subwatershed Site 1 | Iowa | Woodbury | 59 | High | Satisfactory | 1986 | Flood Risk Reduction |
| 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 |
| Arbor Valley Lake Dam | Iowa | Clarke | 58 | High | Satisfactory | 2008 | Recreation |
| North Pigeon Cr Watershed Site M-3 | Iowa | Pottawattamie | 58 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Rager Dam | Iowa | Harrison | 58 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Leisure Lake Dam | Iowa | Jackson | 58 | High | Fair | 1958 | Recreation |
| Davis-Battle Cr. Watershed Site E-1 | Iowa | Monona | 58 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Samuels Dam | Iowa | Madison | 58 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| 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 ... |
| Smokey Hollow Subwatershed Site 3 | Iowa | Woodbury | 58 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Don Williams Lake Dam | Iowa | Boone | 58 | Significant | Satisfactory | 1965 | Recreation |
| West Lake Dam | Iowa | Clarke | 58 | Significant | Satisfactory | 1935 | Water Supply |
| Dunham Dam | Iowa | Crawford | 58 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| 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 |
| Weatherly/Haight Dam | Iowa | Harrison | 57 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Timber Lakes Estate Dam | Iowa | Scott | 57 | Significant | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| South Magnolia Watershed Site 1 | Iowa | Harrison | 57 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Lake Wapello Dam | Iowa | Davis | 57 | Significant | Satisfactory | 1934 | Recreation |
| North Pigeon Cr Watershed Site 4-1 | Iowa | Pottawattamie | 57 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Savery/Welliver Dam | Iowa | Monona | 57 | Low | Fair | 1966 | Fire Protection, Stock, Or ... |
| 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 |
| North Pigeon Cr Watershed Site 12-1 | Iowa | Pottawattamie | 56 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Hickory Grove Lake Dam | Iowa | Story | 56 | Significant | Satisfactory | 1966 | Recreation |
| Leech Hollow Subwatershed Site C-2 | Iowa | Monona | 56 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Mc Call Subwatershed Site M-1 | Iowa | Monona | 56 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-3-1 | Iowa | Woodbury | 55 | Significant | Satisfactory | 1984 | Flood Risk Reduction |
| Hamburg Watershed Site M-1 | Iowa | Fremont | 55 | High | Satisfactory | 1961 | Flood Risk Reduction |
| Schwertley Dam | Iowa | Harrison | 55 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Deer Creek Dam | Iowa | Plymouth | 55 | High | Satisfactory | 1995 | Recreation |
| Lake Delhi Dam | Iowa | Delaware | 55 | Significant | Satisfactory | 1922 | Recreation |
| 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 |
| West Fork #3 Subwtrshd Sta 37+14 #9 | Iowa | Woodbury | 55 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Lum Hollow Subwatershed M-3847 | Iowa | Woodbury | 55 | Low | Not Rated | 1959 | Other |
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.