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 |
|---|---|---|---|---|---|---|---|
| Bacon Creek Watershed Site H-1-3 | Iowa | Woodbury | 40 | Significant | Satisfactory | 1981 | Fire Protection, Stock, Or ... |
| Waterford Pond Dam | Iowa | Polk | 40 | Low | Fair | 1966 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 11 | Iowa | Montgomery | 40 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Willow Creek Subwatershed Site 3-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-1-6 | Iowa | Crawford | 39 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-2-1 | Iowa | Crawford | 39 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| West Beaver Subwatershed Sta 51+80 | Iowa | Monona | 39 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site M-2 | Iowa | Fremont | 39 | Low | Not Rated | 1973 | Water Supply |
| Henter Dam | Iowa | Madison | 39 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Nelson Dam | Iowa | Cherokee | 39 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Meadow Lake Dam | Iowa | Adair | 39 | Significant | Fair | 1964 | Recreation |
| Ryan Henschal Watershed Site A-2 | Iowa | Pottawattamie | 39 | Low | Not Rated | 1976 | Flood Risk Reduction |
| Assman #4 Grade Stabilization Structure | Iowa | Crawford | 39 | Low | Not Rated | 2010 | Fire Protection, Stock, Or ... |
| Simon Run Watershed Site 9-3w | Iowa | Pottawattamie | 39 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Ledgewood Creek Watershed Site 2-1 | Iowa | Fremont | 39 | Low | Not Rated | 1973 | Fire Protection, Stock, Or ... |
| West Douglas Watershed Site L-6 | Iowa | Adams | 39 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Davids Creek Watershed Site 1a-3 | Iowa | Audubon | 39 | Low | Satisfactory | 1977 | Flood Risk Reduction |
| Ahquabi Dredge Spoil Containment Dam 1a | Iowa | Warren | 39 | Low | Not Rated | 1995 | Debris Control |
| Little Egypt Subwatershed Sta 125+21 #M | Iowa | Woodbury | 39 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Pierce Cr. No. 2 Site H-1 | Iowa | Page | 39 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Griener Dam | Iowa | Keokuk | 39 | Low | Not Rated | 1975 | Recreation |
| Clark Dam | Iowa | Woodbury | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Reinig Dam | Iowa | Monona | 39 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Davis-Battle Cr. Watershed Site C-12-2 | Iowa | Monona | 39 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Mc Clure Dam | Iowa | Davis | 39 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Miller Dam | Iowa | Iowa | 39 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-14 | Iowa | Crawford | 39 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| Big Park Watershed Site D-4 | Iowa | Crawford | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 18 | Iowa | Montgomery | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Lake Morris Dam | Iowa | Lucas | 39 | Significant | Fair | 1993 | Water Supply |
| Zellmer Subwtrshd #M 106+26 | Iowa | Woodbury | 39 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Pierce Creek No 1 Watershed Site 1 | Iowa | Page | 39 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Posten Dam | Iowa | Page | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Roy/Kemmish Dam | Iowa | Harrison | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Jasper County Roadgrade Dam 20-81-20 | Iowa | Jasper | 39 | Low | Not Rated | 2002 | Grade Stabilization |
| Troublesome Cr Watershed Site 38-2 | Iowa | Audubon | 39 | Low | Not Rated | 1982 | Fire Protection, Stock, Or ... |
| Straight Dam | Iowa | Harrison | 39 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Mike Mikkelson Subwatershed 5-10316 | Iowa | Monona | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Neustrom Subwatershed Site 13-2 | Iowa | Woodbury | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Lawson Subwatershed Site 1-1 | Iowa | Monona | 39 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Ryan Henschal Watershed Site H-1 | Iowa | Pottawattamie | 39 | Low | Not Rated | 1962 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 90-85 | Iowa | Wapello | 39 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Windy Hill Subwatershed Site 2-1 | Iowa | Woodbury | 39 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Dane Ridge Watershed Site D-1-5 | Iowa | Crawford | 39 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Neustrom Subwatershed Site M-5 | Iowa | Woodbury | 39 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Gray Dam | Iowa | Montgomery | 39 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Mike Mikkelson Subwatershed 3-1630 | Iowa | Monona | 39 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Rodenburg/Porter Dam | Iowa | Pottawattamie | 39 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site N-2 | Iowa | Shelby | 39 | Significant | Satisfactory | 1972 | Flood Risk Reduction |
| Iowa Noname85 | Iowa | Fremont | 39 | Low | Not Rated | 1976 | Other |
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.