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 |
|---|---|---|---|---|---|---|---|
| Pilot Rock Subwtrshd Sta 45+48 #2 | Iowa | Cherokee | 33 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| Iowa Noname41 | Iowa | Pottawattamie | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Big Coon Subwatershed Site 6h-2 | Iowa | Woodbury | 33 | Low | Not Rated | 1999 | Flood Risk Reduction |
| Commers Dam | Iowa | Montgomery | 33 | Low | — | 2023 | Flood Risk Reduction |
| Reed Subwatershed Site 1-1 | Iowa | Monona | 33 | Low | Not Rated | 1990 | Flood Risk Reduction |
| Lorenzen Dam | Iowa | Clinton | 33 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Higdon Dam | Iowa | Decatur | 33 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Possehl Dam | Iowa | Monroe | 33 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Mc Donald Subwatershed Site 5-2290 | Iowa | Woodbury | 33 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site 29 | Iowa | Union | 33 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Clint Means Dam | Iowa | Taylor | 33 | Low | — | 2021 | Grade Stabilization |
| East Aldrich Subwatershed M-3608.2 | Iowa | Ida | 33 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Ballard Country Club Dam | Iowa | Story | 33 | Low | Satisfactory | 1974 | Irrigation |
| Vollmar Dam | Iowa | Ida | 33 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Cummins Dam | Iowa | Adair | 33 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Simonsen Subwatershed Sta 142+42 Main | Iowa | Cherokee | 33 | Low | Not Rated | 1952 | Fire Protection, Stock, Or ... |
| Rock Creek Dam | Iowa | Jasper | 33 | Significant | Fair | — | Recreation |
| Johnston Dam | Iowa | Van Buren | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site 8-1 | Iowa | Fremont | 33 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Mc Larty-Edwards Subwtrshd Sta 20+00 #1 | Iowa | Woodbury | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Buck Dam | Iowa | Crawford | 33 | Low | Not Rated | 2000 | Grade Stabilization |
| Tim Temeyer Dam | Iowa | Pottawattamie | 33 | Low | — | 2020 | Grade Stabilization |
| West Douglas Watershed Site L-1 | Iowa | Adams | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Mucky Creek Subwatershed Sta 37+80 #8 | Iowa | Monona | 33 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Mc Aninch Dam | Iowa | Warren | 33 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Blockton Watershed Site A-1 | Iowa | Taylor | 33 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| Miami Lake Sediment Control Dam Site 2 | Iowa | Monroe | 33 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Carlson Dam | Iowa | Audubon | 33 | Low | Not Rated | 1950 | Fire Protection, Stock, Or ... |
| Badger Creek Watershed Site 45-4 | Iowa | Madison | 33 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Knapp Dam | Iowa | Davis | 33 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Cresswell Dam | Iowa | Woodbury | 33 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Turkey Creek Watershed Site 10-18 | Iowa | Cass | 33 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Stephens Forest Pond Dam | Iowa | Lucas | 33 | Low | Not Rated | 1972 | Recreation |
| Davids Creek Watershed Site 10-2 | Iowa | Audubon | 33 | Significant | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-84 | Iowa | Wapello | 33 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Shimek Forest Dam 4 | Iowa | Lee | 33 | Low | Not Rated | 1978 | Recreation |
| Troublesome Cr Watershed Site 38-8 | Iowa | Audubon | 33 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Gallup Subwatershed 1-1200 | Iowa | Monona | 33 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| North Pigeon Cr Watershed Site 16-1 | Iowa | Pottawattamie | 33 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Fairfield Waterworks Dam No 2 | Iowa | Jefferson | 33 | Low | Satisfactory | 1900 | Water Supply |
| Iowa Noname96 | Iowa | Wayne | 33 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Larson Dam | Iowa | Boone | 33 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Twelve Mile Creek Watershed Site D-41-A-3 | Iowa | Union | 33 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Turkey Cr Watershed Site 40-5a | Iowa | Cass | 33 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Jonbar Ranch Dam | Iowa | Dallas | 33 | Low | Not Rated | 1966 | Fire Protection, Stock, Or ... |
| Lehr Dam | Iowa | Lucas | 33 | Low | Not Rated | 2006 | Grade Stabilization |
| Corey Family Farms Dam | Iowa | Calhoun | 33 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-58b | Iowa | Monroe | 33 | Low | Not Rated | 2005 | Flood Risk Reduction |
| Cheers Dam | Iowa | Union | 33 | Low | Not Rated | 2005 | Grade Stabilization |
| Troublesome Cr Watershed Site 86-1 | Iowa | Audubon | 33 | Low | Not Rated | 1992 | 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.