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 |
|---|---|---|---|---|---|---|---|
| Glen Oaks Country Club Dam | Iowa | Polk | 36 | High | Satisfactory | 1950 | Recreation |
| Arnold-Armstrong Subwtrshd Gully 23 | Iowa | Monona | 36 | Significant | Fair | 1961 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site D-2 | Iowa | Crawford | 36 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Arnold Lake Dam | Iowa | Story | 36 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Simpson Creek Watershed Site 5 | Iowa | Fremont | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Shreck Dam | Iowa | Ringgold | 36 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Stanzel Christian High School Dam | Iowa | Adair | 36 | Low | Not Rated | 1970 | Recreation |
| Silliman Dam | Iowa | Madison | 36 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Patz Dam | Iowa | Webster | 36 | Low | Not Rated | 1978 | Recreation |
| Carter Dam | Iowa | Madison | 36 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 7 | Iowa | Montgomery | 36 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Troublesome Cr Watershed Site 86-2 | Iowa | Audubon | 36 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Ahquabi Dredge Spoil Containment Dam 2a | Iowa | Warren | 36 | Low | Not Rated | 1995 | Debris Control |
| Moorhead Dam | Iowa | Monona | 36 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Cynthia Schlapia Dam | Iowa | Ringgold | 36 | Low | Not Rated | 2016 | Grade Stabilization |
| Spring Valley Project No. 2 | Iowa | Monona | 36 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Merritt/Roden Dam | Iowa | Carroll | 36 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Lincoln Dam | Iowa | Crawford | 36 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Iowa Noname95 | Iowa | Wayne | 36 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Mitchell/ Lyon Dam | Iowa | Guthrie | 36 | Low | Not Rated | 1974 | Recreation |
| Jett Subwatershed Site 16-1 | Iowa | Woodbury | 36 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Freestone Dam | Iowa | Dallas | 36 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Pierce Creek No 1 Watershed Site 12 | Iowa | Page | 36 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Elkhorn No.2 Subwatershed 1-3112 | Iowa | Plymouth | 36 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site D-44-1 | Iowa | Union | 36 | Low | Not Rated | 2008 | Flood Risk Reduction |
| Bacon Creek Watershed Site A-1-1 | Iowa | Woodbury | 36 | High | Fair | 1978 | Flood Risk Reduction |
| Arcola Subwatershed Sta 44+80 | Iowa | Monona | 36 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Petchulat Dam | Iowa | Johnson | 36 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Wenger Subwatershed Sta 43+88 #M | Iowa | Woodbury | 36 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Iowa Noname75 | Iowa | Union | 36 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Mosquito Creek Watershed Site 13-1 | Iowa | Harrison | 36 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Lake Homestead Dam | Iowa | Jackson | 36 | Significant | Satisfactory | 1978 | Recreation |
| Jacobson Dam | Iowa | Crawford | 36 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Hopp Dam (Upper Site) | Iowa | Mills | 36 | Low | Not Rated | 2005 | Grade Stabilization |
| Washington CO Road Dam 3-74-7 | Iowa | Washington | 36 | Low | Not Rated | 2002 | Grade Stabilization |
| Elkhorn No.2 Subwatershed Site 1-3 | Iowa | Plymouth | 36 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site D-41-A-5 | Iowa | Union | 36 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Cord Subwatershed M-5571 | Iowa | Woodbury | 36 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Engnell Dam | Iowa | Boone | 36 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site B-1 | Iowa | Crawford | 36 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Conley Dam 2 | Iowa | Cherokee | 36 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Davis Subwatershed M-7920 | Iowa | Woodbury | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Stone Dam | Iowa | Louisa | 36 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Johnston Dam | Iowa | Marion | 36 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Windy Hill Subwatershed Site 5-1 | Iowa | Woodbury | 36 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Davis Subwatershed M-10843 | Iowa | Woodbury | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-56 | Iowa | Monroe | 36 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Upper Beaver Subwatershed Site 51-1 | Iowa | Monona | 36 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-21-1 | Iowa | Shelby | 36 | Significant | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Schlies Dam | Iowa | Monona | 36 | Low | Not Rated | 1997 | 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.