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 |
|---|---|---|---|---|---|---|---|
| East Fork Grand River Watershed Site A-60 | Iowa | Ringgold | 27 | Low | Not Rated | 2001 | Grade Stabilization |
| East Fork Grand River Watershed Site A-73 | Iowa | Ringgold | 27 | Low | Not Rated | 2001 | Grade Stabilization |
| Twelve Mile Creek Watershed Site 72-1 | Iowa | Union | 27 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Three Mile Creek Watershed Site U-7 | Iowa | Union | 27 | Low | Not Rated | 1980 | Fire Protection, Stock, Or ... |
| East Fork Big Cr Watershed Site Z-5-1 | Iowa | Decatur | 27 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Fee Subwatershd Sta 31+62.5 Main Gully | Iowa | Cherokee | 27 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Little Egypt Subwatershed Sta 174+75 #M | Iowa | Woodbury | 27 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| West Fork Big Creek Watershed Site B-44 | Iowa | Ringgold | 27 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Soap Creek Watershed Site 68-70 | Iowa | Monroe | 27 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Three Mile Creek Watershed Site 14-G-1 | Iowa | Union | 27 | Low | Not Rated | 1976 | Fire Protection, Stock, Or ... |
| West Fork #3 Subwtrshd Sta 38+15 #6 | Iowa | Woodbury | 27 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site A-78 | Iowa | Ringgold | 27 | Low | Not Rated | 2010 | Flood Risk Reduction |
| Mandolfo Dam | Iowa | Mills | 26 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Brehmer Dam | Iowa | Pottawattamie | 26 | Low | Not Rated | 2004 | Grade Stabilization |
| Goellner Dam | Iowa | Wayne | 26 | Low | - | 2019 | Recreation |
| Finch Dam | Iowa | Marion | 26 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Frazier Dam | Iowa | Lucas | 26 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Nelson Dam | Iowa | Clay | 26 | Low | Not Rated | 1999 | Grade Stabilization |
| Porter Dam | Iowa | Davis | 26 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Campbell Dam | Iowa | Polk | 26 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Findley Dam | Iowa | Guthrie | 26 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Morris Dam | Iowa | Lucas | 26 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Garst Dam | Iowa | Guthrie | 26 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Grove Dam | Iowa | Ida | 26 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Heston Dam | Iowa | Appanoose | 26 | Low | Not Rated | 1999 | Fire Protection, Stock, Or ... |
| Schoonover Dam | Iowa | Ringgold | 26 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Robert Smith Dam | Iowa | Page | 26 | Low | - | 2022 | Grade Stabilization |
| Redding Dam | Iowa | Warren | 26 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Pontier Dam | Iowa | Warren | 26 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Schaefer Dam | Iowa | Lucas | 26 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Erickson Dam | Iowa | Clarke | 26 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Shivvers Dam | Iowa | Marion | 26 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Stephany Dam | Iowa | Harrison | 26 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Christen Dam | Iowa | Fayette | 26 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Manor Dam | Iowa | Jefferson | 26 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Derby Dam | Iowa | Davis | 26 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Burnham Dam | Iowa | Lucas | 26 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Duey Dam | Iowa | Monroe | 26 | Low | Not Rated | 1993 | Fire Protection, Stock, Or ... |
| Seley Dam | Iowa | Adair | 26 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Garner Dam | Iowa | Linn | 26 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Stacey Dam | Iowa | Wapello | 26 | Low | Not Rated | 2000 | Recreation |
| Reynolds Dam | Iowa | Warren | 26 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Renaud Dam | Iowa | Polk | 26 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Holste Dam | Iowa | Cass | 26 | Low | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Kevin Briggs Dam | Iowa | Wayne | 26 | Low | - | 2019 | Grade Stabilization |
| Thompson Dam | Iowa | Decatur | 26 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Patterson Dam | Iowa | Clarke | 26 | Low | Not Rated | 1994 | Fire Protection, Stock, Or ... |
| Carson Dam | Iowa | Clarke | 26 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Carver Dam | Iowa | Story | 26 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Pottorff Dam | Iowa | Adams | 26 | Low | Not Rated | 1999 | 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.