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 |
|---|---|---|---|---|---|---|---|
| Rocky Branch Creek Watershed Site H-7 | Iowa | Jefferson | 21 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Grand Meadow Subwatershed Site M-1 | Iowa | Cherokee | 21 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Copper Creek Estates Dam | Iowa | Polk | 21 | Significant | Satisfactory | 2002 | Flood Risk Reduction |
| West Fork Big Cr Wtrshd Site B-32 | Iowa | Decatur | 21 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Clinton Flood Control - May Pond Dam | Iowa | Clinton | 21 | High | Fair | 1988 | Flood Risk Reduction |
| Soap Creek Watershed Site 68-76b | Iowa | Monroe | 21 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Clinton Flood Control - Springvalley Pond Dam | Iowa | Clinton | 21 | High | Satisfactory | 1994 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-68 | Iowa | Ringgold | 21 | Low | Not Rated | 2010 | Flood Risk Reduction |
| North Panama Dam | Iowa | Shelby | 20 | Low | Not Rated | - | Other |
| Miller Dam | Iowa | Jefferson | 20 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Sponsler Dam | Iowa | Wayne | 20 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Stills Dam | Iowa | Warren | 20 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Johnson Dam | Iowa | Jefferson | 20 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Sutton Dam | Iowa | Benton | 20 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Nashua Milldam | Iowa | Chickasaw | 20 | Significant | Fair | 1917 | Recreation |
| Clymer Dam | Iowa | Jones | 20 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Thorland Dam | Iowa | Winnebago | 20 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Gibbs Dam | Iowa | Adair | 20 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Gannon Dam | Iowa | Jasper | 20 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Dixon Dam | Iowa | Davis | 20 | Low | Poor | 1959 | Recreation |
| Newton Dam | Iowa | Adair | 20 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Lyons Dam | Iowa | Jefferson | 20 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Tenhulzen Dam | Iowa | Crawford | 20 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Swaim Dam | Iowa | Davis | 20 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Dimmitt Dam | Iowa | Wapello | 20 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Holm Dam | Iowa | Butler | 20 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Hankins Dam | Iowa | Mahaska | 20 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Wedeking Dam | Iowa | Butler | 20 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Crestmor Golf Club Dam | Iowa | Union | 20 | Low | Not Rated | 1994 | Recreation |
| Burlington Street Dam | Iowa | Johnson | 20 | Low | Not Rated | 1906 | Other |
| Tuscany Pond Dam | Iowa | Polk | 20 | Low | - | 1970 | Flood Risk Reduction |
| Newton Koa Campground Dam | Iowa | Jasper | 20 | Significant | Poor | - | Recreation |
| Schwab Dam | Iowa | Decatur | 20 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Metro West Dam (Sw) | Iowa | Polk | 20 | Low | Not Rated | 1996 | Debris Control |
| Odetta Lake Dam | Iowa | Scott | 20 | Low | Not Rated | 1964 | Recreation |
| Heeren Dam | Iowa | Franklin | 20 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Doty/Truesdell/Johnson Dam | Iowa | Sioux | 20 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Lake Point Dam | Iowa | Dallas | 20 | Low | Not Rated | 1992 | Other |
| Scott Co. Park Dam #1 | Iowa | Scott | 20 | Low | Not Rated | 1964 | |
| North Ridge Park Dam | Iowa | Johnson | 20 | Low | Not Rated | 1993 | Recreation |
| C and R Ag Dam | Iowa | Dallas | 20 | Low | Not Rated | 2007 | Fire Protection, Stock, Or ... |
| Airport Park Lake Dam | Iowa | Chickasaw | 20 | Low | Not Rated | 1979 | Recreation |
| Drews Lake Dam | Iowa | Dallas | 20 | Significant | Satisfactory | 2005 | Recreation |
| Croy Subwatershed Site A4-4572 | Iowa | Monona | 20 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Rolling Hills Dam | Iowa | Johnson | 20 | Significant | Not Rated | 2002 | Recreation |
| Bacon Creek Watershed Site J-4 | Iowa | Woodbury | 20 | Low | Not Rated | 1985 | Other |
| Bamboo Ridge Lake | Iowa | Black Hawk | 20 | High | Satisfactory | 2012 | Recreation |
| Scott Blvd Dam | Iowa | Johnson | 20 | High | Satisfactory | 1980 | Flood Risk Reduction |
| Big Coon Subwatershed Site M-5 | Iowa | Woodbury | 20 | Low | Not Rated | 2000 | Flood Risk Reduction |
| Badger Creek Watershed Site 36-3 | Iowa | Madison | 20 | Low | Not Rated | 1984 | 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.