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 |
|---|---|---|---|---|---|---|---|
| Mill Picayune Watershed Site M-21-1 | Iowa | Shelby | 36 | Significant | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Hopp Dam (Upper Site) | Iowa | Mills | 36 | Low | Not Rated | 2005 | Grade Stabilization |
| Arnold-Armstrong Subwtrshd Sta 127+05 | Iowa | Monona | 36 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Cord Subwatershed M-5571 | Iowa | Woodbury | 36 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Upper Beaver Subwatershed Site 51-1 | Iowa | Monona | 36 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Legacy Farms Dam | Iowa | Montgomery | 36 | Low | - | 2023 | Grade Stabilization |
| Twelve Mile Creek Watershed Site D-44-1 | Iowa | Union | 36 | Low | Not Rated | 2008 | Flood Risk Reduction |
| Mud Creek Subwatershed Site 15-1 | Iowa | Plymouth | 36 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Simpson Creek Watershed Site 5 | Iowa | Fremont | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Seven Cedars Farms Dam | Iowa | Crawford | 36 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Twin Ponies Watershed Site 8 | Iowa | Pottawattamie | 36 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Arcola Subwatershed Sta 44+80 | Iowa | Monona | 36 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Lake Homestead Dam | Iowa | Jackson | 36 | Significant | Satisfactory | 1978 | Recreation |
| Glen Oaks Country Club Dam | Iowa | Polk | 36 | High | Satisfactory | 1950 | Recreation |
| Indian Creek-Van Buren Watershed Site 27 | Iowa | Van Buren | 36 | Significant | Satisfactory | 1990 | Flood Risk Reduction |
| Stanzel Christian High School Dam | Iowa | Adair | 36 | Low | Not Rated | 1970 | Recreation |
| Moorhead Dam | Iowa | Monona | 36 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Petchulat Dam | Iowa | Johnson | 36 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Hound Dog Watershed Site B-7 | Iowa | Fremont | 36 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Turkey Cr Watershed Site 59d-2 | Iowa | Cass | 36 | Significant | Fair | 1980 | Flood Risk Reduction |
| Ken Southworth Jr. Dam | Iowa | Dubuque | 36 | Low | Not Rated | 2014 | Grade Stabilization |
| Davis Subwatershed 7-1580 | Iowa | Woodbury | 36 | Low | Not Rated | 1958 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site P-47-2 | Iowa | Shelby | 36 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site D-3 | Iowa | Crawford | 36 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site D-41-A-5 | Iowa | Union | 36 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Schlies Dam | Iowa | Monona | 36 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Stone Dam | Iowa | Louisa | 36 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-16-2 | Iowa | Crawford | 36 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Rath Dam | Iowa | Crawford | 36 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Parnell Creek Subwatershed Site 5-1 | Iowa | Woodbury | 36 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Freestone Dam | Iowa | Dallas | 36 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Jacobson Dam | Iowa | Crawford | 36 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Iowa Noname67 | Iowa | Crawford | 36 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| Ahquabi Dredge Spoil Containment Dam 2a | Iowa | Warren | 36 | Low | Not Rated | 1995 | Debris Control |
| West Fork One Subwatershed Site 4-4300 | Iowa | Woodbury | 36 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 4-90a | Iowa | Appanoose | 36 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Sandven Dam | Iowa | Humboldt | 36 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Chipp Dam | Iowa | Lucas | 36 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Holm Dam | Iowa | Madison | 36 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Iowa Noname95 | Iowa | Wayne | 36 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Cohrs Dam | Iowa | Harrison | 36 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Shaha Dam | Iowa | Ringgold | 36 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Conley Dam 2 | Iowa | Cherokee | 36 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Montgomery Dam | Iowa | Cherokee | 36 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Croy Subwatershed Site 1-1292 | Iowa | Monona | 36 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Indian Creek Watershed Site 13 | Iowa | Pottawattamie | 36 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Iowa Noname3 | Iowa | Appanoose | 36 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-56 | Iowa | Monroe | 36 | Low | Not Rated | 2003 | Flood Risk Reduction |
| Reames Dam | Iowa | Madison | 36 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 33 | Iowa | Union | 36 | Low | Not Rated | 1976 | 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.