90Total Dams
1High Hazard
7Significant
Dam Safety in Decatur County, Iowa
Decatur County has 90 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 7 carry a significant hazard classification.
The average dam in Decatur County is 38 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Little River Watershed Site M-1 at 61 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Little River Watershed Site M-1 | High | Satisfactory | 61 | Flood Risk Reduction | 1984 |
| North Woods Lake Dam | Significant | Satisfactory | 57 | Water Supply | 1993 |
| Nine Eagles Park Lake Dam | Significant | Fair | 53 | Recreation | 1930 |
| Little River Watershed Site 65 | Significant | Fair | 45 | Flood Risk Reduction | 1987 |
| Homepond Dam | Significant | Fair | 30 | Water Supply | 1920 |
| Lake Lashane Dam | Significant | Satisfactory | 30 | Water Supply | 1954 |
| Little River Watershed Site 51-1 | Significant | Satisfactory | 30 | Recreation | 2005 |
| Little River Watershed Site 65-3 | Significant | Satisfactory | 22 | Flood Risk Reduction | 1980 |
| Iowa Noname11 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Grand River Cattle Dam | Low | Not assessed | 41 | Water Supply | 2007 |
| Smith Dam | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Saxton Dam #2 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Rod and Reel Lake Dam | Low | Not assessed | 35 | Recreation | 1970 |
| Edward Schnurr Dam | Low | Not assessed | 33 | Grade Stabilization | 2019 |
| Higdon Dam | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 2001 |
| Slip Bluff Park Dam | Low | Not assessed | 33 | Recreation | 1970 |
| Clark Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Acheson Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Johnson Dam | Low | Not assessed | 32 | Water Supply | 1974 |
| Binning Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 2002 |
| Cowles Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Kellin Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1989 |
| Hawkins Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Little River Watershed Site 65-1 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Farm Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Andrew Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1983 |
| Iowa Noname10 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Mcintyre Dam | Low | Not assessed | 30 | Grade Stabilization | 2013 |
| Decatur County Roadgrade Dam 14-69-27 | Low | Not assessed | 30 | Other | 1987 |
| Little River Watershed Site 65-2 | Low | Not assessed | 30 | Flood Risk Reduction | 1980 |
| Thompson Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Saxton Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Richardson Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1985 |
| Cannon Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Massey Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1986 |
| Scott Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1981 |
| Ryun Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Simpson Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Mc Millan Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Saxton Dam #3 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Little River Watershed Site 58 | Low | Not assessed | 28 | Flood Risk Reduction | 2006 |
| Hanthorn Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Jones Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Leverson Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| East Fork Big Cr Watershed Site Z-5-1 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Thompson Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1990 |
| Jass Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Doss Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| West Fork Big Cr Wtrshd Site B-39 | Low | Not assessed | 26 | Flood Risk Reduction | 2003 |
| Olson Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| West Fork Big Creek Watershed Site B-42 | Low | Not assessed | 25 | Flood Risk Reduction | 1996 |
| Faber Dam | Low | Not assessed | 24 | Recreation | 2020 |
| Hinebaugh Dam | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| East Fork Big Cr Watershed Site E-6 | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Kieser Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Adamson Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1993 |
| Hansell Farms Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| West Fork Big Creek Watershed Site S-12 | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| East Fork Big Cr Wtrshd Site Z-5-2 | Low | Not assessed | 23 | Flood Risk Reduction | 2003 |
| East Fork Big Cr Watershed Site E-12 | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| East Fork Big Cr Watershed Site E-18 | Low | Not assessed | 23 | Flood Risk Reduction | 1990 |
| East Fork Big Cr Watershed Site E-17 | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| West Fork Big Creek Watershed Site S-10 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| West Fork Big Creek Watershed Site S-9 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| West Fork Big Creek Watershed Site S-13 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| West Fork Big Cr Wtrshd Site B-37 | Low | Not assessed | 22 | Flood Risk Reduction | 2005 |
| West Fork Big Cr Wtrshd Site B-182 | Low | Not assessed | 22 | Flood Risk Reduction | 2003 |
| East Fork Big Cr Watershed Site E-14 | Low | Not assessed | 22 | Flood Risk Reduction | 1990 |
| West Fk Big Cr Watshd Site S-7 | Low | Not assessed | 21 | Flood Risk Reduction | 1996 |
| West Fork Big Cr Wtrshd Site S-6 | Low | Not assessed | 21 | Flood Risk Reduction | 2003 |
| East Fork Big Cr Watershed Site Z-2 | Low | Not assessed | 21 | Flood Risk Reduction | 1990 |
| West Fork Big Cr Wtrshd Site B-32 | Low | Not assessed | 21 | Flood Risk Reduction | 2003 |
| Schwab Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| East Fork Big Cr Watershed Site Z-6 | Low | Not assessed | 20 | Flood Risk Reduction | 1990 |
| West Fork Big Creek Watershed Site S-8 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| East Fork Big Cr Watershed Site Z-4 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| West Fork Big Creek Watershed Site S-48 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| East Fork Big Cr Watershed Site Z-1 | Low | Not assessed | 20 | Flood Risk Reduction | 1990 |
| West Fork Big Cr Wtrshd Site B-38 | Low | Not assessed | 20 | Flood Risk Reduction | |
| Webb Dam | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| East Fork Big Cr Watershed Site E-15 | Low | Not assessed | 19 | Flood Risk Reduction | 1990 |
| East Fork Big Cr Wtrshd Site Z-6 | Low | Not assessed | 18 | Flood Risk Reduction | 2003 |
| West Fork Big Creek Watershed Site S-16 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| East Fork Big Cr Watershed Site E-16 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| East Fork Big Cr Watershed Site E-2 | Low | Not assessed | 18 | Flood Risk Reduction | 1990 |
| East Fork Big Cr Watershed Site E-3 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| East Fork Big Cr Watershed Site E-10 | Low | Not assessed | 17 | Flood Risk Reduction | 1990 |
| East Fork Big Cr Watershed Site E-4 | Low | Not assessed | 16 | Flood Risk Reduction | 1990 |
| East Fork Big Cr Watershed Site E-5 | Low | Not assessed | 14 | Flood Risk Reduction | 1990 |
| Graceland College Dam | Low | Not assessed | 12 | Recreation | 1959 |