| FM over Trout River | Poor | 172.9 ft | 953 | 1956 |
| FM over Trout River | Poor | 24.0 ft | 697 | 1958 |
| FM over Small Creek | Poor | 29.9 ft | 697 | 1986 |
| Main ST over Small Natural Stream | Poor | 27.9 ft | 649 | 1940 |
| FM over Upper Iowa River | Poor | 296.9 ft | 324 | 1937 |
| Local over Upper Iowa River | Poor | 60.0 ft | 207 | 1985 |
| 236th AVE over Silver Creek | Poor | 33.1 ft | 187 | 1928 |
| FM over North Bear Creek | Poor | 141.1 ft | 137 | 1952 |
| Meadowlark RD over Creek | Poor | 24.9 ft | 128 | 1976 |
| Local over Ten Mile Creek | Poor | 44.0 ft | 118 | 1900 |
| Local over Pine Creek | Poor | 123.0 ft | 118 | 1938 |
| 244th AVE over Upper Iowa River | Poor | 248.0 ft | 108 | 1924 |
| Local Road over Creek | Poor | 24.9 ft | 108 | 1900 |
| Local over Creek | Poor | 33.1 ft | 97 | 1900 |
| Local over Creek | Poor | 22.0 ft | 88 | 1900 |
| Local Road over Bohemian Creek | Poor | 75.1 ft | 88 | 1922 |
| Local Road over Bohemian Creek | Poor | 58.1 ft | 88 | 1962 |
| FM over Minor Creek | Poor | 75.1 ft | 88 | 1970 |
| 107th AVE over Creek | Poor | 25.9 ft | 78 | 1965 |
| Local Road over Creek | Poor | 44.0 ft | 78 | 1962 |
| Local over Upper Iowa River | Poor | 216.9 ft | 70 | 1900 |
| Ferris Mill RD over Creek | Poor | 28.9 ft | 70 | 1900 |
| Local over Creek | Poor | 34.1 ft | 70 | 1900 |
| 150th ST over Stream | Poor | 183.1 ft | 69 | 1892 |
| Local Road over Creek | Poor | 45.9 ft | 59 | 1977 |
| Coldwater Creek RD over Creek | Poor | 20.0 ft | 59 | 1978 |
| Local Road over Canoe Creek | Poor | 153.9 ft | 49 | 1908 |
| Local over Upper Iowa River | Poor | 195.9 ft | 49 | 1900 |
| FM over North Bear Creek | Poor | 29.9 ft | 49 | 1900 |
| Local over Creek | Poor | 20.0 ft | 44 | 1944 |
| Local over Creek | Poor | 94.2 ft | 44 | 1977 |
| Local Road over Creek | Poor | 23.0 ft | 39 | 1900 |
| Local Road over Creek | Poor | 24.0 ft | 39 | 1900 |
| FM over North Bear Creek | Poor | 30.8 ft | 39 | 1957 |
| Local Road over Creek | Poor | 26.9 ft | 39 | 1900 |
| FM over Upper Iowa River | Poor | 151.9 ft | 39 | 1913 |
| Local Road over Trout Creek | Poor | 29.9 ft | 33 | 1915 |
| Local Road over Turkey River | Poor | 110.9 ft | 33 | 1959 |
| Local Road over Creek | Poor | 24.9 ft | 29 | 1915 |
| Local over Small Running Creek | Poor | 27.9 ft | 29 | 1900 |
| Local Road over Creek | Poor | 33.1 ft | 29 | 1900 |
| Local Road over Creek | Poor | 29.9 ft | 29 | 1900 |
| Chimney Rock RD over Creek | Poor | 21.0 ft | 26 | 1900 |
| Local RD over Small | Poor | 32.2 ft | 26 | 1978 |
| Local Road over Creek | Poor | 44.0 ft | 26 | 1900 |
| Local Road over Creek | Poor | 35.1 ft | 26 | 1900 |
| Local over Canoe Creek | Poor | 60.0 ft | 20 | 1924 |
| Cattle Creek RD over Creek | Poor | 30.8 ft | 20 | 1900 |
| Local over Creek | Poor | 22.0 ft | 20 | 1980 |
| Local Road over Upper Iowa River | Poor | 147.0 ft | 20 | 1904 |
| Local Road over Creek | Poor | 44.0 ft | 15 | 1972 |
| 279th AVE over Drainage | Poor | 27.9 ft | 15 | 1900 |
| Local Road over Creek | Poor | 29.9 ft | 11 | 1971 |
| Local Road over Creek | Poor | 34.1 ft | 11 | 1900 |
| Local Legno over Creek | Poor | 34.1 ft | 11 | 1913 |
| Local over Small | Poor | 24.0 ft | 11 | 1978 |
| Local Road over Creek | Poor | 33.1 ft | 5 | 1900 |
| Ia 9 over Trout Creek | Fair | 204.1 ft | 14,900 | 1969 |
| Ia 9 over Division ST | Fair | 163.1 ft | 8,900 | 1969 |
| College DR over Upper Iowa River | Fair | 305.1 ft | 8,868 | 1987 |
| Ia 9 over Trout Creek | Fair | 128.0 ft | 5,400 | 1969 |
| US 52 over Dry Run | Fair | 103.0 ft | 4,230 | 1963 |
| US 52 over Stream & Twin Springs RD | Fair | 376.0 ft | 4,230 | 1963 |
| Ia 9 over Dry Run Creek | Fair | 244.1 ft | 3,880 | 1945 |
| US 52 over Upper Iowa River | Fair | 412.1 ft | 3,340 | 1963 |
| US 52 over Silver Creek | Fair | 34.1 ft | 2,580 | 1974 |
| Ia 9 over Smith Creek | Fair | 253.0 ft | 2,310 | 1969 |
| Ia 24 over Goddard Creek | Fair | 125.0 ft | 2,250 | 1932 |
| Ia 150 over Stream | Fair | 28.9 ft | 2,210 | 1988 |
| A6w River RD over Drainage | Fair | 27.9 ft | 1,856 | 1985 |
| Ia 139 over Stream | Fair | 133.9 ft | 1,560 | 1995 |
| FM over Stream | Fair | 20.0 ft | 1,375 | 1959 |
| FM over Stream | Fair | 20.0 ft | 1,169 | 1958 |
| Local over Drainage | Fair | 55.1 ft | 1,090 | 1931 |
| Old Stage RD over Creek | Fair | 24.0 ft | 1,051 | 2001 |
| FM over Trout Creek | Fair | 54.1 ft | 894 | 1962 |
| FM over Creek | Fair | 29.9 ft | 795 | 1973 |
| FM over North Bear Creek | Fair | 21.0 ft | 786 | 1993 |
| FM over Turkey River | Fair | 168.0 ft | 766 | 1956 |
| FM over Yellow River N Fork | Fair | 24.0 ft | 740 | 1962 |
| FM over Turkey River | Fair | 24.0 ft | 658 | 1955 |
| FM over Turkey River Branch | Fair | 43.0 ft | 658 | 1962 |
| FM over Silver Creek | Fair | 27.9 ft | 560 | 1973 |
| FM over Creek | Fair | 36.1 ft | 560 | 1962 |
| FM over Pine Creek | Fair | 42.0 ft | 560 | 1962 |
| William St-2nd over Dry Run Creek | Fair | 23.0 ft | 541 | 1960 |
| FM over Yellow River | Fair | 57.1 ft | 520 | 1955 |
| FM over Yellow River | Fair | 57.1 ft | 491 | 1964 |
| FM over Turkey River | Fair | 207.0 ft | 491 | 1957 |
| V 64 over Creek | Fair | 57.1 ft | 471 | 1957 |
| FM over Ten Mile Creek Branch | Fair | 27.9 ft | 410 | 1968 |
| FM over Ten Mile Creek | Fair | 53.1 ft | 393 | 2005 |
| FM over Upper Iowa River | Fair | 293.0 ft | 363 | 1986 |
| Main ST over Wonder Creek | Fair | 107.0 ft | 360 | 1956 |
| FM over Walnut Creek (ten Mile) | Fair | 143.0 ft | 344 | 1950 |
| Pole Line RD over Small Stream | Fair | 25.9 ft | 344 | 1950 |
| Sumner ST over Dry Run Creek | Fair | 22.0 ft | 339 | 1970 |
| Pleasant AVE over Ia 9 | Fair | 213.9 ft | 309 | 1969 |
| FM over Upper Iowa River | Fair | 299.9 ft | 265 | 1967 |
| 337th ST over Canoe Creek Branch | Fair | 27.9 ft | 265 | 1971 |
| FM over Canoe Creek Branch | Fair | 42.0 ft | 265 | 1971 |
| FM over Ten Mile Creek | Fair | 37.1 ft | 236 | 1952 |
| FM over Small Creek | Fair | 41.0 ft | 226 | 2004 |
| FM over Krumm Creek | Fair | 100.1 ft | 206 | 1981 |
| Middle Sattre RD over Creek | Fair | 29.9 ft | 187 | 1976 |
| FM over Canoe Creek | Fair | 190.9 ft | 147 | 1935 |
| FM over Pine Creek | Fair | 42.0 ft | 120 | 1962 |
| FM over Creek | Fair | 24.0 ft | 120 | 1961 |
| 123rd ST over Turkey River | Fair | 185.0 ft | 118 | 1936 |
| FM over Running Creek | Fair | 27.9 ft | 118 | 1978 |
| FM over Upper Iowa River Branch | Fair | 62.0 ft | 118 | 1971 |
| FM over Turkey River | Fair | 201.1 ft | 98 | 1985 |
| FM over Paint Creek | Fair | 34.1 ft | 98 | 1941 |
| FM over Dry Creek | Fair | 25.9 ft | 98 | 1957 |
| Local over Silver Creek | Fair | 55.1 ft | 97 | 1939 |
| FM over Creek | Fair | 54.1 ft | 90 | 1969 |
| FM over Wonder Creek | Fair | 61.0 ft | 88 | 1970 |
| Local over Small | Fair | 33.1 ft | 88 | 1978 |
| 360th ST over Small Stream | Fair | 24.0 ft | 88 | 2000 |
| FM over Upper Iowa River Branch | Fair | 24.0 ft | 79 | 1962 |
| FM over Upper Iowa River | Fair | 207.0 ft | 79 | 1961 |
| Local over Creek | Fair | 77.1 ft | 78 | 1980 |
| Local over Creek | Fair | 24.9 ft | 78 | 1965 |
| Local over Creek | Fair | 24.9 ft | 78 | 1977 |
| Local Road over Humpal Creek | Fair | 33.1 ft | 78 | 1900 |
| Local Road over Creek | Fair | 24.0 ft | 78 | 2003 |
| Local Road over Creek | Fair | 80.1 ft | 78 | 1990 |
| Local over North Bear Creek | Fair | 60.0 ft | 78 | 1900 |
| 180th AVE over Creek | Fair | 24.0 ft | 70 | 2012 |
| Local RD over Small | Fair | 30.8 ft | 70 | 1978 |
| Local Road over Creek | Fair | 28.5 ft | 70 | 1995 |
| Local Road over Humpal Creek | Fair | 27.9 ft | 70 | 1964 |
| Local Road over Creek | Fair | 29.9 ft | 70 | 1966 |
| Local over Ten Mile Creek Branch | Fair | 40.0 ft | 70 | 1966 |
| Local over Creek | Fair | 20.0 ft | 70 | 1900 |
| Local over Small Stream | Fair | 24.9 ft | 70 | 1974 |
| Local Road over Drainage | Fair | 20.0 ft | 70 | 1969 |
| Local over Small Creek | Fair | 29.9 ft | 70 | 1976 |
| Local over Cold Water Creek | Fair | 49.9 ft | 70 | 1962 |
| Local Road over Coldwater Creek | Fair | 26.9 ft | 70 | 1970 |
| FM over Br. Turkey River | Fair | 20.0 ft | 69 | 1953 |
| FM over Upper Iowa River | Fair | 253.9 ft | 69 | 1952 |
| Local over Creek | Fair | 30.8 ft | 59 | 1965 |
| FM over Tangen Creek | Fair | 58.1 ft | 59 | 1935 |
| FM over Tangen Creek | Fair | 36.1 ft | 59 | 1961 |
| Local over Creek | Fair | 57.1 ft | 59 | 1965 |
| FM over Trout Creek Branch | Fair | 26.9 ft | 59 | 1900 |
| Local Road over Creek | Fair | 32.2 ft | 59 | 1900 |
| FM over Drainage Ditch | Fair | 32.2 ft | 59 | 1976 |
| Local Road over Creek | Fair | 52.2 ft | 59 | 1900 |
| Local Road over Creek | Fair | 20.0 ft | 59 | 1939 |
| Local over Small | Fair | 32.2 ft | 59 | 1978 |
| Local Road over Creek | Fair | 70.9 ft | 49 | 1900 |
| Local over Creek | Fair | 24.9 ft | 49 | 1980 |
| Local Road over Pine Creek | Fair | 28.9 ft | 49 | 1965 |
| Local Road over Pine Creek | Fair | 35.1 ft | 49 | 1967 |
| Local Road over Creek | Fair | 28.9 ft | 49 | 1967 |
| Local Road over Creek | Fair | 32.2 ft | 44 | 1971 |
| Local Road over Creek | Fair | 24.0 ft | 44 | 1953 |
| Local Road over Turkey River | Fair | 147.0 ft | 44 | 1964 |
| Scenic River RD over Creek | Fair | 24.9 ft | 44 | 1900 |
| Local Road over Creek | Fair | 37.1 ft | 44 | 1970 |
| Local Road over Creek | Fair | 24.0 ft | 40 | 1968 |
| Local over Yellow River Branch | Fair | 32.2 ft | 39 | 1975 |
| Local over Creek | Fair | 32.2 ft | 39 | 1968 |
| Local Road over Creek | Fair | 25.9 ft | 39 | 1900 |
| Local over Small Stream | Fair | 29.9 ft | 39 | 1900 |
| Local over Creek | Fair | 20.0 ft | 39 | 1980 |
| Local Road over Creek | Fair | 52.2 ft | 39 | 1957 |
| Local Road over Turkey River | Fair | 112.9 ft | 39 | 1962 |
| Local over Small | Fair | 23.0 ft | 39 | 1978 |
| Local over Small | Fair | 20.0 ft | 39 | 1978 |
| Local Road over Creek | Fair | 25.9 ft | 39 | 1976 |
| Local Road over Silver Creek | Fair | 27.9 ft | 39 | 1969 |
| Local Road over Creek | Fair | 24.9 ft | 39 | 1966 |
| FM over Small | Fair | 25.9 ft | 34 | 1978 |
| Local over Fitzgerald Creek | Fair | 24.9 ft | 33 | 1969 |
| Local Road over Creek | Fair | 26.9 ft | 33 | 1975 |
| Swan RD over Creek | Fair | 23.0 ft | 33 | 1900 |
| Local over Dry Creek | Fair | 36.1 ft | 33 | 1988 |
| Local Road over Dry Run Creek | Fair | 35.1 ft | 33 | 1971 |
| Local Road over Creek | Fair | 23.0 ft | 33 | 2006 |
| Local Road over Creek | Fair | 36.1 ft | 33 | 1900 |
| 220th ST over Turkey River | Fair | 109.9 ft | 33 | 1900 |
| Local over North Fork Yellow River | Fair | 32.2 ft | 29 | 1984 |
| Local over North Fork Yellow River | Fair | 33.1 ft | 29 | 1913 |
| Local over Creek | Fair | 21.0 ft | 29 | 1900 |
| Local over Creek | Fair | 32.2 ft | 29 | 1973 |
| 236th AVE over Creek | Fair | 32.2 ft | 29 | 1900 |
| Local Road over Trout Creek | Fair | 42.0 ft | 29 | 1900 |
| Local Road over Creek | Fair | 41.0 ft | 29 | 1900 |
| Middle Hesper RD over Creek | Fair | 34.1 ft | 29 | 1900 |
| Local Road over Creek | Fair | 23.0 ft | 29 | 1900 |
| Local Road over Creek | Fair | 24.9 ft | 29 | 1900 |
| Local over Creek | Fair | 25.9 ft | 26 | 1900 |
| Local over Small Creek | Fair | 32.2 ft | 26 | 1900 |
| 230th ST over Small Stream | Fair | 24.9 ft | 26 | 1974 |
| Scenic River RD over Creek | Fair | 33.1 ft | 26 | 1990 |
| Local Road over Canoe Creek | Fair | 32.2 ft | 26 | 1900 |
| Local Road over Creek | Fair | 22.0 ft | 20 | 1900 |
| Local over Small Creek | Fair | 24.0 ft | 20 | 1985 |
| Local Road over Creek | Fair | 28.9 ft | 20 | 1964 |
| Local Road over Creek | Fair | 24.0 ft | 15 | 1900 |
| Local over Yellow River Branch | Fair | 27.9 ft | 11 | 1990 |
| Local Road over Canoe Creek | Fair | 55.1 ft | 11 | 1900 |
| Local Legno over Creek | Fair | 24.0 ft | 11 | 1961 |
| 301st ST over Creek | Fair | 32.2 ft | 11 | 1943 |
| Local Legno over Canoe Creek | Fair | 70.9 ft | 10 | 2008 |
| Field Entr. over Side Ditch | Fair | 20.0 ft | 10 | 1995 |
| Local Legno over Creek | Fair | 34.1 ft | 5 | 1960 |
| Local over Creek | Fair | 36.1 ft | 5 | 1989 |
| Local over Creek | Fair | 34.1 ft | 0 | 1900 |
| Ia 24 over Turkey River Overflow | Good | 129.9 ft | 2,970 | 2006 |
| Ia 24 over Stream | Good | 39.0 ft | 2,970 | 2008 |
| Ia 24 over Turkey River | Good | 314.0 ft | 2,860 | 2006 |
| Ia 24 over Goddard Creek | Good | 129.9 ft | 2,810 | 2006 |
| Ia 150 over Broachamp Creek | Good | 25.9 ft | 2,590 | 1994 |
| Trout Run RD over Creek | Good | 36.1 ft | 2,553 | 2013 |
| Ia 150 over Stream | Good | 24.0 ft | 2,180 | 1988 |
| Ia 24 over Little Turkey River | Good | 177.2 ft | 1,940 | 2013 |
| Fifth AVE over Upper Iowa River | Good | 240.2 ft | 1,774 | 2005 |
| FM over Canoe Creek | Good | 189.0 ft | 1,581 | 2002 |
| Ia 139 over Stream | Good | 38.1 ft | 1,560 | 1990 |
| Ia 139 over Upper Iowa River | Good | 261.2 ft | 1,560 | 1990 |
| Co RD B16 over Turkey River | Good | 149.9 ft | 1,522 | 2009 |
| Pole Line RD over Drainage Ditch | Good | 69.9 ft | 1,449 | 2021 |
| FM over Trout River | Good | 75.1 ft | 1,375 | 2002 |
| FM over Stream | Good | 24.0 ft | 1,375 | 2002 |
| W 42 over Creek | Good | 24.0 ft | 933 | 2013 |
| W20 Pole Line RD over Upper Iowa River | Good | 334.0 ft | 891 | 2022 |
| Ia 139 over Elliot Creek | Good | 28.9 ft | 830 | 1954 |
| 5th ST over Upper Iowa River | Good | 335.0 ft | 830 | 1983 |
| Trout Run RD over Small Stream | Good | 24.0 ft | 805 | 2016 |
| Local over Trout Creek | Good | 154.9 ft | 805 | 2003 |
| A 46 over Turkey River | Good | 80.1 ft | 766 | 2018 |
| Main ST over Turkey River | Good | 199.1 ft | 669 | 2009 |
| W 14 over Turkey River Branch | Good | 24.0 ft | 658 | 2000 |
| Co RD V68 over Small Creek | Good | 23.0 ft | 649 | 2009 |
| FM over Canoe Creek | Good | 24.0 ft | 580 | 1959 |
| North Winn RD over Canoe Creek | Good | 68.9 ft | 570 | 1959 |
| A 18 over Creek | Good | 112.9 ft | 550 | 2013 |
| FM over Small Stream | Good | 24.0 ft | 501 | 2007 |
| FM over Upper Iowa River | Good | 304.1 ft | 471 | 2005 |
| Local over Upper Iowa River | Good | 293.0 ft | 442 | 1988 |
| Local over Small | Good | 23.0 ft | 442 | 1988 |
| FM over Upper Iowa River Branch | Good | 86.9 ft | 324 | 1987 |
| Local Road over Creek | Good | 149.9 ft | 323 | 2008 |
| FM over Canoe Creek | Good | 78.1 ft | 304 | 1992 |
| FM over Upper Iowa River | Good | 288.1 ft | 265 | 1976 |
| FM over S. Bear Creek | Good | 103.0 ft | 236 | 1975 |
| FM over Drainage | Good | 57.1 ft | 236 | 1990 |
| FM over Upper Iowa River | Good | 273.0 ft | 206 | 1999 |
| Middle Sattre RD over Canoe Creek | Good | 125.0 ft | 187 | 2006 |
| A14 over Pine Creek | Good | 44.9 ft | 157 | 2016 |
| Little Church RD over Turkey River | Good | 240.2 ft | 148 | 1977 |
| FM over Trout Creek | Good | 103.0 ft | 137 | 1995 |
| FM over Trout Creek Branch | Good | 90.9 ft | 137 | 1995 |
| FM over Turkey River | Good | 207.0 ft | 128 | 1979 |
| Local Road over Dry Run Creek | Good | 100.1 ft | 128 | 2007 |
| Rogers Creek RD over Rogers Creek | Good | 75.1 ft | 120 | 2012 |
| FM over Upper Iowa River | Good | 128.0 ft | 118 | 2003 |
| FM over Trout Run Creek Branch | Good | 90.9 ft | 108 | 1943 |
| Local over Turkey River | Good | 201.1 ft | 97 | 2003 |
| Local over Small Creek | Good | 40.0 ft | 97 | 1981 |
| 295th AVE over Small Creek | Good | 20.0 ft | 79 | 2011 |
| FM over Small Creek | Good | 40.0 ft | 79 | 2005 |
| 210th AVE over Creek | Good | 24.0 ft | 78 | 2014 |
| 240th ST over Creek | Good | 51.5 ft | 78 | 2020 |
| Local over Canoe Creek | Good | 179.1 ft | 78 | 2001 |
| Local over Creek | Good | 89.9 ft | 70 | 2005 |
| Local over Creek | Good | 142.1 ft | 70 | 1985 |
| Local over Mouth Of Canoe | Good | 104.0 ft | 70 | 1975 |
| Local over Canoe Creek | Good | 87.9 ft | 70 | 1989 |
| State Line RD over Creek | Good | 24.0 ft | 70 | 2015 |
| Local over Upper Iowa River | Good | 243.1 ft | 70 | 1986 |
| 111th AVE over Yellow River | Good | 103.0 ft | 69 | 2015 |
| FM over North Bear Creek | Good | 125.0 ft | 69 | 1985 |
| Scenic River RD over Upper Iowa River | Good | 149.9 ft | 60 | 2021 |
| Local over Small Creek | Good | 77.1 ft | 59 | 1979 |
| Local over Creek | Good | 98.1 ft | 59 | 1997 |
| Local Road over Creek | Good | 58.1 ft | 59 | 1991 |
| Town Line RD over Creek | Good | 24.9 ft | 59 | 1979 |
| Manawa Trail RD over Canoe Creek | Good | 102.0 ft | 59 | 1979 |
| 185th ST over Creek | Good | 24.0 ft | 50 | 2021 |
| FM over Trout River | Good | 36.1 ft | 50 | 1967 |
| 307th AVE over Creek | Good | 24.0 ft | 50 | 2019 |
| 133rd AVE over Trout River | Good | 27.9 ft | 49 | 1967 |
| 235th AVE over Ten Mile Creek | Good | 75.1 ft | 49 | 2013 |
| Local Road over Ten Mile Creek | Good | 66.9 ft | 49 | 2010 |
| Local Road over Ten Mile Creek | Good | 20.0 ft | 49 | 2010 |
| Local Road over Ten Mile Creek | Good | 24.9 ft | 49 | 1984 |
| 223rd AVE over Canoe Creek | Good | 36.1 ft | 49 | 1972 |
| West Ravine RD over Upper Iowa River | Good | 250.0 ft | 49 | 2011 |
| Local Road over Canoe Creek | Good | 36.1 ft | 49 | 1972 |
| Local over Small Creek | Good | 100.1 ft | 49 | 1985 |
| Local Road over Creek | Good | 30.8 ft | 49 | 1991 |
| FM over Pine Creek | Good | 103.0 ft | 49 | 1985 |
| Local over Ten Mile Creek | Good | 42.0 ft | 45 | 1972 |
| FM over Creek | Good | 20.0 ft | 45 | 1967 |
| Local Road over Creek | Good | 25.9 ft | 44 | 1998 |
| 210th ST over Unnamed Drainage | Good | 69.9 ft | 44 | 2023 |
| Local Road over Wonder Creek | Good | 128.0 ft | 44 | 1991 |
| Local Road over Coon Creek | Good | 128.0 ft | 44 | 1992 |
| Local Road over Creek | Good | 75.1 ft | 44 | 2002 |
| Local over Canoe Creek | Good | 100.1 ft | 44 | 1985 |
| 361st ST over Drainage | Good | 33.1 ft | 44 | 1997 |
| Local over North Fork Yellow River | Good | 50.9 ft | 39 | 1991 |
| Local over Yellow River | Good | 75.1 ft | 39 | 1998 |
| Little Church RD over Turkey River | Good | 243.1 ft | 39 | 2010 |
| Local over Small Creek | Good | 36.1 ft | 39 | 1981 |
| Ranch RD over Creek | Good | 20.0 ft | 39 | 2011 |
| 111th AVE over N Fork Of Yellow Rivr | Good | 87.9 ft | 39 | 2000 |
| FM over Running Creek | Good | 41.0 ft | 34 | 1977 |
| 335th AVE over Bohemian Creek | Good | 112.9 ft | 33 | 2013 |
| Local over Small Stream | Good | 78.1 ft | 33 | 1998 |
| 230th ST over Creek | Good | 80.1 ft | 33 | 2018 |
| 107th AVE over Yellow River | Good | 100.1 ft | 29 | 2018 |
| Cattle Creek RD over Upper Iowa River | Good | 246.4 ft | 29 | 2019 |
| Local over Small Creek | Good | 100.1 ft | 29 | 1979 |
| 360th ST over North Bear Creek | Good | 150.9 ft | 29 | 2022 |
| Bear Creek RD over Bear Creek | Good | 75.1 ft | 29 | 2017 |
| 288th AVE over Coldwater Creek | Good | 103.0 ft | 29 | 2015 |
| Local Road over Wonder Creek | Good | 98.1 ft | 26 | 1998 |
| Local Road over Creek | Good | 75.1 ft | 26 | 2002 |
| Chimney Rock RD over Upper Iowa River | Good | 243.1 ft | 26 | 2020 |
| Scenic River RD over Creek | Good | 50.9 ft | 26 | 2015 |
| Pine Creek RD over Pine Creek | Good | 112.9 ft | 26 | 2016 |
| 275th ST over Unnamed Creek | Good | 24.0 ft | 26 | 2019 |
| Oneota DR over Drainage Channel | Good | 103.7 ft | 25 | 2019 |
| Local over Bigalk Creek | Good | 103.0 ft | 25 | 1987 |
| Local Road over Creek | Good | 75.1 ft | 20 | 2002 |
| 315th AVE over Creek | Good | 24.0 ft | 20 | 2019 |
| Local RD over Creek | Good | 36.1 ft | 20 | 1996 |
| Local Road over Dry Run Creek | Good | 78.1 ft | 20 | 2005 |
| 128th AVE over North Bear Creek | Good | 125.0 ft | 20 | 2006 |
| Local over Creek | Good | 50.9 ft | 20 | 1980 |
| Local Road over Coldwater Creek | Good | 30.8 ft | 20 | 1994 |
| Local Road over Small Dry Run | Good | 30.8 ft | 20 | 1976 |
| 107th ST over Creek | Good | 92.8 ft | 15 | 2016 |
| Moneek RD over Yellow River N Fork | Good | 70.9 ft | 11 | 2014 |
| Local Road over Creek | Good | 78.1 ft | 11 | 2003 |
| Local over Creek | Good | 24.9 ft | 5 | 1979 |