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 |
|---|---|---|---|---|---|---|---|
| Troublesome Cr Watershed Site 81-4 | Iowa | Audubon | 35 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Rodney Subwatershed Site 8-2 | Iowa | Monona | 35 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Klein Dam | Iowa | Marion | 35 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Izzak Walton League Dam | Iowa | Wapello | 35 | Significant | Satisfactory | 1965 | Recreation |
| Troublesome Cr Watershed Site 21-1 | Iowa | Cass | 35 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Monroe CO Roadgrade Dam Site 35.4.10 | Iowa | Monroe | 35 | Low | Not Rated | 1985 | Other |
| Williams Dam | Iowa | Plymouth | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Mc Donald Subwatershed Site 1 | Iowa | Woodbury | 35 | Low | Not Rated | 1985 | Recreation |
| West Douglas Watershed Site B-1 | Iowa | Adams | 35 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Greenfield Dam | Iowa | Jefferson | 35 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Dessel Dam | Iowa | Cherokee | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site I-1 | Iowa | Harrison | 35 | Low | Not Rated | 1984 | Fire Protection, Stock, Or ... |
| Pemble Dam | Iowa | Greene | 35 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site P-4 | Iowa | Shelby | 35 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Marywood Farms Dam | Iowa | Warren | 35 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Allen- Ewing Dam | Iowa | Wayne | 35 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Miami Lake Sediment Control Dam Site 1 | Iowa | Monroe | 35 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Thomas Dam | Iowa | Cherokee | 35 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Upper Pine Lake Dredge Spoil Dam | Iowa | Hardin | 35 | Low | Not Rated | 1998 | Other |
| Walton Lake Dam | Iowa | Jefferson | 35 | Significant | Satisfactory | 1900 | Water Supply |
| Arrowhead Investments Dam | Iowa | Madison | 35 | Low | - | 2020 | Grade Stabilization |
| Soap Creek Watershed Site 90-83 | Iowa | Wapello | 35 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Wenger Dam | Iowa | Washington | 35 | Low | Not Rated | 2005 | Grade Stabilization |
| Joe Sinclair Dam | Iowa | Monroe | 35 | Low | - | 2018 | Water Supply |
| Wolf Creek Subwatershed Site 3-2 | Iowa | Woodbury | 35 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Smith Dam | Iowa | Decatur | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Hickory Glen Park Dam | Iowa | Polk | 35 | Significant | Satisfactory | 2019 | Recreation |
| Saxton Dam #2 | Iowa | Decatur | 35 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Haroldsen Dam | Iowa | Buena Vista | 35 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Arnold-Armstrong Subwtrshd Sta 23+00 | Iowa | Monona | 35 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Staley & Rae Dam | Iowa | Crawford | 35 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site 30 | Iowa | Union | 35 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 52-1 | Iowa | Union | 35 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| St. Thomas More Silt Dam | Iowa | Guthrie | 35 | Low | Not Rated | 1995 | Debris Control |
| Tim Lau Site 2 | Iowa | Clarke | 35 | Low | Not Rated | 2016 | Grade Stabilization |
| Bernstein Dam | Iowa | Mahaska | 35 | Significant | Not Rated | 1976 | Recreation |
| Hidden Acres Dam | Iowa | Webster | 35 | Low | Not Rated | 1990 | Recreation |
| Heritage Woods Dam | Iowa | Dallas | 35 | High | Satisfactory | 2008 | Recreation |
| Lautner Dam | Iowa | Greene | 35 | Low | Not Rated | 2004 | Grade Stabilization |
| Village Oaks Phase 1 | Iowa | Scott | 35 | Low | Not Rated | 1975 | Recreation |
| Iowa Noname35 | Iowa | Plymouth | 35 | Significant | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| G&R Farms Dam | Iowa | Washington | 35 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Klockgether Dam | Iowa | Crawford | 35 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Iowa Noname51 | Iowa | Taylor | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Parnell Creek Subwatershed Site 15-2 | Iowa | Woodbury | 35 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Deutsch Dam | Iowa | Marshall | 35 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Welch Dam | Iowa | Hardin | 35 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Lake of Three Fire Dredge Spoil Contianment Dam | Iowa | Taylor | 35 | Low | Not Rated | 2003 | Other |
| Lum Hollow Subwatershed 9c-3295 | Iowa | Woodbury | 35 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Kent Dam | Iowa | Lucas | 35 | Low | Not Rated | 1974 | 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.