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 |
|---|---|---|---|---|---|---|---|
| East Fork Big Cr Watershed Site Z-6 | Iowa | Decatur | 20 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Walters Creek Watershed Site 33-2 | Iowa | Adams | 20 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 47-4 | Iowa | Audubon | 20 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 23-20 | Iowa | Cass | 20 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Arnold-Armstrong Subwtrshd Sta 62+89 #1 | Iowa | Monona | 20 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site S-8 | Iowa | Decatur | 20 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Watershed Site Z-1 | Iowa | Decatur | 20 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Wayne CO Road Dam 32-70-20 | Iowa | Wayne | 20 | Low | Not Rated | 2003 | Grade Stabilization |
| West Fork Big Creek Watershed Site S-48 | Iowa | Decatur | 20 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Watershed Site Z-4 | Iowa | Decatur | 20 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Grand Meadow Subwatershed Site 8-3 | Iowa | Cherokee | 20 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| West Fork Big Cr Wtrshd Site B-38 | Iowa | Decatur | 20 | Low | Not Rated | - | Flood Risk Reduction |
| Henry Dam | Iowa | Plymouth | 19 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Jim Utt Dam | Iowa | Davis | 19 | Low | Not Rated | 2016 | Flood Risk Reduction |
| Trimble Dam | Iowa | Ringgold | 19 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Logsdon Dam | Iowa | Lucas | 19 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Richardt Dam | Iowa | Tama | 19 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Tomson Dam | Iowa | Chickasaw | 19 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Odoherty Dam | Iowa | Montgomery | 19 | Low | - | 2024 | Grade Stabilization |
| Iowa Noname79 | Iowa | Pottawattamie | 19 | Low | Not Rated | 1973 | Water Supply |
| Arp Dam | Iowa | Tama | 19 | Low | - | 2021 | Flood Risk Reduction |
| Hunemiller Dam | Iowa | Butler | 19 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Hon Dam | Iowa | Muscatine | 19 | Significant | Fair | 1991 | Fire Protection, Stock, Or ... |
| Stalkfleet Dam | Iowa | Muscatine | 19 | Low | Not Rated | 2008 | Flood Risk Reduction |
| Bax Dam | Iowa | Adams | 19 | Low | Not Rated | 2013 | Grade Stabilization |
| Vogel Dam | Iowa | Poweshiek | 19 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Norlund 1 | Iowa | Crawford | 19 | Low | - | 2005 | Flood Risk Reduction |
| Vaubel Dam | Iowa | Tama | 19 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Hunter Dam #2 | Iowa | Madison | 19 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Webb Dam | Iowa | Decatur | 19 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Bays Branch | Iowa | Guthrie | 19 | Significant | Satisfactory | 1962 | Recreation |
| Hang Dam | Iowa | Taylor | 19 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Thomas Dam | Iowa | Jackson | 19 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Northridge Heights Dam | Iowa | Story | 19 | Significant | Not Rated | 2004 | Flood Risk Reduction |
| Peterson Dam | Iowa | Shelby | 19 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Sugar Creek Lake Dam | Iowa | Dallas | 19 | Low | Not Rated | 1963 | Recreation |
| Anamosa State Reformatory Dam | Iowa | Jones | 19 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Mc Kinley Lake Dam | Iowa | Union | 19 | Significant | Satisfactory | 1920 | Recreation |
| Ahquabi Dredge Spoil Containment Dam 5a | Iowa | Warren | 19 | Low | Not Rated | 1995 | Debris Control |
| Honey Creek Watershed Site A-3 | Iowa | Lucas | 19 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Thunder Bay Lake Dam | Iowa | Polk | 19 | Significant | Satisfactory | 2010 | Flood Risk Reduction |
| Fieldstone Addition Dam | Iowa | Black Hawk | 19 | High | Satisfactory | 1998 | Recreation |
| Walters Creek Watershed Site 33-1 | Iowa | Adams | 19 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Mitchell Mill Dam | Iowa | Mitchell | 19 | Low | Satisfactory | 1925 | Hydroelectric |
| Big Wyacondah Watershed Site 32-3 | Iowa | Davis | 19 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Se Des Moines Stormwater Det. Dam #5 | Iowa | Polk | 19 | Low | Satisfactory | 1999 | Flood Risk Reduction |
| West Fork Big Creek Watershed Site W-29 | Iowa | Ringgold | 19 | Low | Not Rated | 2001 | Grade Stabilization |
| Soap Creek Watershed Site 90-92 | Iowa | Wapello | 19 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site B-16 | Iowa | Ringgold | 19 | Low | Not Rated | 2001 | Grade Stabilization |
| East Fork Grand River Watershed Site D-51 | Iowa | Ringgold | 19 | Low | Not Rated | 2002 | Grade Stabilization |
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.