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 |
|---|---|---|---|---|---|---|---|
| Prairie Trail Development - North Dam | Iowa | Polk | 22 | Significant | Not Rated | 2008 | Flood Risk Reduction |
| Troublesome Cr Watershed Site 83-1 | Iowa | Audubon | 22 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Walters Creek Watershed Site 40-1 | Iowa | Adams | 22 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Big Coon Subwatershed Site L-3 | Iowa | Woodbury | 22 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Honey Creek Watershed Site E-1 | Iowa | Lucas | 22 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site A-30 | Iowa | Union | 22 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Moulton Watershed Site B-9 | Iowa | Appanoose | 22 | Low | Not Rated | 1963 | Flood Risk Reduction |
| Little River Watershed Site 65-3 | Iowa | Decatur | 22 | Significant | Satisfactory | 1980 | Flood Risk Reduction |
| Big Whiskey 1 Subwatershed Site 13-2 | Iowa | Woodbury | 22 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site A-36 | Iowa | Union | 22 | Low | Not Rated | 2001 | Grade Stabilization |
| Soap Creek Watershed Site 4-39 | Iowa | Appanoose | 22 | Low | Not Rated | 2001 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site B-18 | Iowa | Ringgold | 22 | Low | Not Rated | 2002 | Grade Stabilization |
| Twelve Mile Creek Watershed Site 77 | Iowa | Union | 22 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site B-27 | Iowa | Ringgold | 22 | Low | Not Rated | 2001 | Grade Stabilization |
| West Fork Big Creek Watershed Site B-4 | Iowa | Ringgold | 22 | Low | Not Rated | 2002 | Grade Stabilization |
| East Fork Grand River Watershed Site D-72 | Iowa | Ringgold | 22 | Low | Not Rated | 2002 | Grade Stabilization |
| West Fork Big Creek Watershed Site B-8 | Iowa | Ringgold | 22 | Low | Not Rated | 2002 | Grade Stabilization |
| West Fork Big Creek Watershed Site S-13 | Iowa | Decatur | 22 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site S-9 | Iowa | Decatur | 22 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site S-10 | Iowa | Decatur | 22 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Wayne Co. Roadgrade Dam 16-69-21 | Iowa | Wayne | 22 | Low | Not Rated | 1996 | Other |
| East Fork Grand River Watershed Site D-25 | Iowa | Ringgold | 22 | Low | Not Rated | 2006 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site W-20 | Iowa | Ringgold | 22 | Low | Not Rated | 2000 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site W-27 | Iowa | Ringgold | 22 | Low | Not Rated | 2000 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-55 | Iowa | Union | 22 | Low | Not Rated | 2008 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site W-37 | Iowa | Ringgold | 22 | Low | Not Rated | 2000 | Flood Risk Reduction |
| East Fork Grand River Watershed Site A-95 | Iowa | Ringgold | 22 | Low | Not Rated | 2006 | Flood Risk Reduction |
| West Fork Big Cr Wtrshd Site B-37 | Iowa | Decatur | 22 | Low | Not Rated | 2005 | Flood Risk Reduction |
| West Fork Big Cr Wtrshd Site B-182 | Iowa | Decatur | 22 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Cory Basin Dam | Iowa | Guthrie | 22 | Significant | Satisfactory | 2016 | Debris Control |
| Upper Locust Creek Watershed Site L-23 | Iowa | Wayne | 22 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site B-45 | Iowa | Ringgold | 22 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Watershed Site E-14 | Iowa | Decatur | 22 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Upper Locust Creek Watershed Site L-46 | Iowa | Wayne | 22 | Low | Not Rated | 2008 | Flood Risk Reduction |
| Upper Locust Creek Watershed Site L-32 | Iowa | Wayne | 22 | Low | Not Rated | 2007 | Flood Risk Reduction |
| East Fork Grand River Watershed Site D-60 | Iowa | Ringgold | 22 | Low | Not Rated | 2010 | Flood Risk Reduction |
| Moore Dam | Iowa | Davis | 21 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Hanna Dam | Iowa | Adams | 21 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Williams Dam | Iowa | Pottawattamie | 21 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Perrin Dam | Iowa | Adair | 21 | Low | Not Rated | 1999 | |
| Delzell Dam | Iowa | Davis | 21 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Maxwell Dam | Iowa | Henry | 21 | Low | Not Rated | 2008 | Fire Protection, Stock, Or ... |
| Lansink Dam | Iowa | Ida | 21 | Low | Not Rated | 2008 | Fire Protection, Stock, Or ... |
| Lambert Dam | Iowa | Lucas | 21 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Lamberts Dam | Iowa | Lucas | 21 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Skidmore Dam | Iowa | Louisa | 21 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Schmidt Dam | Iowa | Washington | 21 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Mohr Dam | Iowa | Crawford | 21 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Adam Dam | Iowa | Jefferson | 21 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Schlegel Dam | Iowa | Davis | 21 | Low | Not Rated | 1970 | 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.