| 5th ST E over Drainage | Poor | 22.0 ft | 1,054 | 1915 |
| Center ST over Deer Creek | Poor | 159.1 ft | 1,019 | 1982 |
| North Main ST over Small Stream | Poor | 50.9 ft | 869 | 1962 |
| FM over Iowa River Overflow | Poor | 227.0 ft | 786 | 1967 |
| FM over Iowa River Overflow | Poor | 32.2 ft | 786 | 1968 |
| FM over Iowa River | Poor | 504.9 ft | 786 | 1968 |
| East ST over Wolf Creek | Poor | 182.1 ft | 779 | 1950 |
| FM over Br Iowa River | Poor | 20.0 ft | 717 | 1995 |
| FM over Branch Iowa River | Poor | 44.0 ft | 678 | 1965 |
| E66 over Plague Mine Creek | Poor | 83.0 ft | 650 | 1976 |
| E66 over Salt Creek | Poor | 288.1 ft | 650 | 1976 |
| Irr-fm over Iowa River | Poor | 604.0 ft | 619 | 1988 |
| FM over Branch Iowa River | Poor | 33.1 ft | 579 | 1969 |
| FM over Wolf Creek | Poor | 254.9 ft | 530 | 1970 |
| FM over Branch Of Iowa River | Poor | 41.0 ft | 491 | 1936 |
| FM over Plaque Mine Creek | Poor | 25.9 ft | 481 | 1970 |
| FM over Branch Salt Creek | Poor | 128.0 ft | 432 | 1970 |
| Station ST over Drainage | Poor | 28.9 ft | 383 | 1925 |
| FM over Salt Creek | Poor | 230.0 ft | 363 | 1969 |
| FM over So Branch Salt Creek | Poor | 128.9 ft | 363 | 1969 |
| FM over Branch Salt Creek | Poor | 57.1 ft | 344 | 1996 |
| FM over Salt Creek | Poor | 78.1 ft | 344 | 1965 |
| FM over So Branch Salt Creek | Poor | 41.0 ft | 344 | 1996 |
| E 5th Street over Overflow Iowa River | Poor | 42.0 ft | 320 | 1900 |
| E36 over Salt Creek | Poor | 146.0 ft | 314 | 1959 |
| E36 over Stein Creek | Poor | 127.0 ft | 314 | 1959 |
| IRR FM over Branch Of Richland Creek | Poor | 78.1 ft | 304 | 1967 |
| FM over Deer Creek | Poor | 178.1 ft | 275 | 1954 |
| Jacob ST over Drainage | Poor | 30.8 ft | 232 | 1900 |
| FM over Troublesome Creek | Poor | 24.0 ft | 226 | 1964 |
| IRR Local over Iowa River Overflow | Poor | 169.0 ft | 216 | 1947 |
| Irr-local over Iowa River Overflow | Poor | 157.2 ft | 216 | 1953 |
| Irr-local over Iowa River | Poor | 331.0 ft | 216 | 1938 |
| FM over Small Stream | Poor | 75.1 ft | 216 | 1981 |
| FM over Wolf Creek Branch | Poor | 26.9 ft | 196 | 1914 |
| FM over Branch Wolf Creek | Poor | 77.1 ft | 196 | 1970 |
| FM over Branch Twelve Mile Creek | Poor | 102.0 ft | 196 | 1967 |
| Local over Sugar Creek | Poor | 44.0 ft | 88 | 1900 |
| FM over Branch Otter Creek | Poor | 85.0 ft | 79 | 1927 |
| FM over Salt Creek | Poor | 122.0 ft | 79 | 1951 |
| Local over Devils Run | Poor | 43.0 ft | 70 | 1940 |
| Local over Wolf Creek | Poor | 202.1 ft | 70 | 1957 |
| FM over Branch Salt Creek | Poor | 36.1 ft | 59 | 1968 |
| Local over Salt Creek | Poor | 205.1 ft | 59 | 1927 |
| Irr-fm over Bennett Creek | Poor | 34.1 ft | 59 | 1944 |
| Local over Indian Creek | Poor | 26.9 ft | 49 | 1940 |
| Local over Kibbe Creek | Poor | 40.0 ft | 49 | 1991 |
| Local over Crystal Creek | Poor | 57.1 ft | 49 | 1951 |
| Local over Small | Poor | 80.1 ft | 49 | 1983 |
| Local over Stream | Poor | 78.1 ft | 49 | 1975 |
| Local over Richland Creek | Poor | 128.9 ft | 44 | 1960 |
| Local over Salt Creek | Poor | 58.1 ft | 44 | 1955 |
| Local over Salt Creek | Poor | 123.0 ft | 44 | 1897 |
| Elm ST over Drainage | Poor | 20.0 ft | 40 | 1920 |
| FM over Iowa River | Poor | 250.0 ft | 39 | 1914 |
| FM over Richland Creek | Poor | 43.0 ft | 39 | 1935 |
| Local over East Branch Salt Creek | Poor | 43.0 ft | 39 | 1936 |
| Local over Branch Salt Creek | Poor | 43.0 ft | 39 | 1940 |
| Local over Jordan Creek | Poor | 33.1 ft | 39 | 1940 |
| Local over East Branch Salt Creek | Poor | 32.2 ft | 39 | 1969 |
| Local over Small Stream | Poor | 40.0 ft | 39 | 1986 |
| FM over Deer Creek | Poor | 30.8 ft | 39 | 1960 |
| Local over Twelve Mile Creek | Poor | 41.0 ft | 39 | 1925 |
| Local over East Branch Salt Creek | Poor | 42.0 ft | 35 | 1940 |
| FM over Branch Wolf Creek | Poor | 28.9 ft | 34 | 1916 |
| IRR Local over Richland Creek | Poor | 106.0 ft | 33 | 1956 |
| Local over Branch Iowa River | Poor | 32.2 ft | 33 | 1913 |
| Local over East Branch Salt Creek | Poor | 43.0 ft | 33 | 1937 |
| Local over Branch Of Salt Creek | Poor | 40.0 ft | 33 | 1983 |
| IRR Local over Branch Of Richland Creek | Poor | 26.9 ft | 29 | 1941 |
| Local over Raven Creek | Poor | 43.0 ft | 29 | 1940 |
| Local over Small Stream | Poor | 32.2 ft | 29 | 1987 |
| Local over Otter Creek | Poor | 95.1 ft | 29 | 1930 |
| Local over South Branch Salt Creek | Poor | 35.1 ft | 29 | 1940 |
| Local over Br Sugar Creek | Poor | 25.9 ft | 29 | 1920 |
| Local over Branch Sugar Creek | Poor | 20.0 ft | 29 | 1920 |
| Local over Wolf Creek | Poor | 274.9 ft | 29 | 1953 |
| Local over Twelve Mile Creek | Poor | 101.0 ft | 29 | 1985 |
| Local over Small Stream | Poor | 53.1 ft | 29 | 1986 |
| Local over Richland Creek | Poor | 92.8 ft | 26 | 1925 |
| Local over Branch Of Salt Creek | Poor | 29.9 ft | 26 | 1987 |
| Local over East Branch Salt Creek | Poor | 82.0 ft | 26 | 1987 |
| Local over South Branch Salt Creek | Poor | 100.1 ft | 26 | 1907 |
| Local over Branch Iowa River | Poor | 40.0 ft | 26 | 1985 |
| Local over Twelve Mile Creek | Poor | 30.8 ft | 26 | 1970 |
| FM over Richland Creek | Poor | 152.9 ft | 25 | 1946 |
| FM over Branch Otter Creek | Poor | 35.1 ft | 25 | 1940 |
| FM over North Walnut Creek | Poor | 30.8 ft | 20 | 1970 |
| Local over Wolf Creek | Poor | 43.0 ft | 20 | 1940 |
| FM over Small | Poor | 23.0 ft | 20 | 1963 |
| Local over F0ur Mile Creek | Poor | 43.0 ft | 20 | 1979 |
| Local over Salt Creek | Poor | 26.9 ft | 20 | 1940 |
| Local over Wolf Creek | Poor | 28.9 ft | 20 | 1910 |
| Co.rd. over Stream | Poor | 44.0 ft | 20 | 1965 |
| FM over North Walnut Creek | Poor | 37.1 ft | 15 | 1930 |
| Local over Wolf Creek | Poor | 49.9 ft | 15 | 1975 |
| Local over Salt Creek | Poor | 52.2 ft | 15 | 1910 |
| Local over Salt Creek | Poor | 144.0 ft | 11 | 1982 |
| Local over Branch Iowa River | Poor | 32.2 ft | 11 | 1983 |
| Local over Richland Creek | Poor | 80.1 ft | 11 | 1991 |
| IRR Local over Branch Of Richland Creek | Poor | 41.0 ft | 11 | 1988 |
| Local over Wolf Creek | Poor | 120.1 ft | 11 | 1895 |
| Local over Four Mile Creek | Poor | 26.9 ft | 11 | 1988 |
| Local over Branch Of Iowa River | Poor | 32.2 ft | 5 | 1950 |
| Local over Richland Creek | Poor | 40.0 ft | 5 | 1900 |
| Local over Otter Creek | Poor | 32.2 ft | 5 | 1920 |
| Local over Salt Creek | Poor | 20.0 ft | 5 | 2001 |
| US 63 over Rock Creek | Fair | 44.9 ft | 3,500 | 1955 |
| US 63 over Iowa River | Fair | 665.0 ft | 3,460 | 1978 |
| US 63 over Drainage Ditch | Fair | 25.9 ft | 3,160 | 1976 |
| US 63 over Salt Creek | Fair | 21.0 ft | 2,780 | 1976 |
| Ia 21 over Drainage Ditch | Fair | 33.1 ft | 2,600 | 1960 |
| Ia 21 over Wolf Creek | Fair | 287.1 ft | 2,600 | 1960 |
| Ia 96 over Wolf Creek | Fair | 32.2 ft | 1,320 | 1955 |
| E66 over Drainage Ditch | Fair | 32.2 ft | 1,051 | 1976 |
| FM over Branch Iowa River | Fair | 24.9 ft | 962 | 1982 |
| FM over Branch Salt Creek | Fair | 29.9 ft | 727 | 1998 |
| Irr-fm over Iowa River Overflow | Fair | 102.0 ft | 619 | 1972 |
| Irr-fm over Iowa River Overflow | Fair | 67.9 ft | 619 | 1972 |
| FM over Branch Wolf Creek | Fair | 102.0 ft | 530 | 1970 |
| Bank ST over Drainage | Fair | 24.9 ft | 513 | 1970 |
| Irr-fm over Raven Creek | Fair | 128.0 ft | 432 | 1981 |
| FM over Branch Indian Creek | Fair | 20.0 ft | 334 | 1984 |
| FM over Small Stream | Fair | 37.1 ft | 314 | 1959 |
| IRR FM over Branch Of Richland Creek | Fair | 54.1 ft | 304 | 2002 |
| FM over Stream | Fair | 56.1 ft | 275 | 1986 |
| FM over Branch Of Richland Creek | Fair | 20.0 ft | 265 | 1994 |
| Local over Small Stream | Fair | 27.9 ft | 255 | 1986 |
| FM over Twelve Mile Creek | Fair | 83.0 ft | 196 | 1981 |
| 380th ST over Salt Creek | Fair | 100.1 ft | 160 | 2022 |
| FM over Sugar Creek | Fair | 128.0 ft | 157 | 1984 |
| Local over Coon Creek | Fair | 39.0 ft | 137 | 1997 |
| Irr-local over Bennett Creek | Fair | 40.0 ft | 128 | 1986 |
| FM over Otter Creek | Fair | 21.0 ft | 128 | 1983 |
| FM over Branch Iowa River | Fair | 71.9 ft | 98 | 1990 |
| FM over Branch Iowa River | Fair | 80.1 ft | 98 | 1999 |
| IRR FM over Small | Fair | 20.0 ft | 98 | 1989 |
| Local over North Coon Creek | Fair | 32.2 ft | 88 | 1937 |
| Local over Richland Creek | Fair | 152.9 ft | 78 | 1956 |
| Local over Wolf Creek | Fair | 43.0 ft | 70 | 1940 |
| Local over Deer Creek | Fair | 40.0 ft | 70 | 1900 |
| FM over Iowa River | Fair | 503.0 ft | 59 | 1941 |
| Local over Richland Creek | Fair | 80.1 ft | 59 | 1989 |
| FM over Branch Salt Creek | Fair | 37.1 ft | 59 | 1968 |
| Local over Small Stream | Fair | 41.0 ft | 59 | 1982 |
| Local over Branch Deer Creek | Fair | 20.0 ft | 59 | 1983 |
| FM over Wolf Creek | Fair | 202.1 ft | 59 | 1959 |
| Local over Otter Creek | Fair | 40.0 ft | 49 | 1940 |
| Local over Salt Creek | Fair | 128.0 ft | 49 | 1988 |
| Local over South Branch Salt Creek | Fair | 35.1 ft | 49 | 1940 |
| FM over Wolf Creek | Fair | 211.9 ft | 49 | 1953 |
| FM over Little Wolf Creek | Fair | 57.1 ft | 49 | 1955 |
| Local over Deer Creek | Fair | 61.0 ft | 44 | 1940 |
| Local over Sugar Creek | Fair | 35.1 ft | 44 | 1920 |
| FM over Branch Twelve Mile Creek | Fair | 30.8 ft | 44 | 1965 |
| Local over Salt Creek | Fair | 40.0 ft | 40 | 1985 |
| Local over Plaque Mine Creek | Fair | 80.1 ft | 39 | 1985 |
| Local over Raven Creek | Fair | 43.0 ft | 39 | 1940 |
| Local over Otter Creek | Fair | 30.8 ft | 39 | 1965 |
| FM over So Branch Salt Creek | Fair | 42.0 ft | 39 | 1953 |
| Local over Jordan Creek | Fair | 35.1 ft | 39 | 1900 |
| FM over Branch Iowa River | Fair | 26.9 ft | 39 | 1950 |
| FM over Branch Iowa River | Fair | 30.8 ft | 39 | 1949 |
| FM over Rock Creek | Fair | 37.1 ft | 39 | 1968 |
| Local over Twelve Mile Creek | Fair | 128.0 ft | 39 | 1978 |
| Local over Drainage | Fair | 23.0 ft | 39 | 1990 |
| Local over Branch Of Salt Creek | Fair | 40.0 ft | 33 | 1991 |
| Local over Richland Creek | Fair | 71.9 ft | 33 | 1920 |
| Local over Troublesome Creek | Fair | 30.8 ft | 33 | 1950 |
| Local over Branch Of Salt Creek | Fair | 41.0 ft | 33 | 1984 |
| Local over Wolf Creek | Fair | 160.1 ft | 33 | 1985 |
| Local over Raven Creek | Fair | 43.0 ft | 29 | 1940 |
| Local over Branch Of Otter Creek | Fair | 42.0 ft | 29 | 1987 |
| FM over Kibbe Creek | Fair | 40.0 ft | 29 | 1991 |
| Local over Salt Creek | Fair | 30.8 ft | 29 | 1966 |
| Local over Twelve Mile Creek | Fair | 44.0 ft | 29 | 1950 |
| Local over North Walnut Creek | Fair | 33.1 ft | 26 | 1966 |
| Local over Salt Creek | Fair | 42.0 ft | 26 | 1995 |
| Local over Branch Salt Creek | Fair | 22.0 ft | 26 | 1960 |
| Local over Deer Creek | Fair | 20.0 ft | 26 | 1994 |
| Local over Four Mile Crk | Fair | 80.1 ft | 26 | 1981 |
| FM over Salt Creek | Fair | 30.8 ft | 25 | 1979 |
| Local over Wolf Creek | Fair | 30.8 ft | 20 | 1965 |
| FM over Otter Creek | Fair | 52.2 ft | 20 | 1930 |
| FM over Salt Creek | Fair | 40.0 ft | 20 | 1985 |
| Local over East Branch Salt Creek | Fair | 71.9 ft | 20 | 1992 |
| Local over Salt Creek | Fair | 47.9 ft | 20 | 2005 |
| Local over Deer Creek | Fair | 40.0 ft | 20 | 1985 |
| Local over Rock Creek | Fair | 33.1 ft | 20 | 1966 |
| Local over Small | Fair | 24.9 ft | 20 | 1965 |
| Local over Coon Creek | Fair | 35.1 ft | 20 | 1945 |
| Local over Salt Creek | Fair | 20.0 ft | 20 | 2009 |
| Local over Twelve Mile Creek | Fair | 26.9 ft | 20 | 1948 |
| Local over Twelve Mile Creek | Fair | 46.9 ft | 20 | 2006 |
| Local over Twelve Mile Creek | Fair | 35.1 ft | 20 | 1950 |
| Local over Branch Crystal Creek | Fair | 26.9 ft | 15 | 1945 |
| Local over Branch Of Iowa River | Fair | 42.0 ft | 15 | 2006 |
| Local over Sugar Creek | Fair | 42.0 ft | 15 | 1987 |
| FM over Branch Wolf Creek | Fair | 102.0 ft | 15 | 1968 |
| Local over Branch Wolf Creek | Fair | 24.0 ft | 15 | 1987 |
| Local over Crystal Creek | Fair | 40.0 ft | 15 | 1997 |
| Local over Branch Wolf Creek | Fair | 80.1 ft | 15 | 1998 |
| Local over Branch Iowa River | Fair | 29.9 ft | 15 | 1997 |
| Local over Small | Fair | 22.0 ft | 15 | 1994 |
| Local over Branch Deer Creek | Fair | 80.1 ft | 11 | 1999 |
| Local over Small Stream | Fair | 27.9 ft | 11 | 1987 |
| Local over Deer Creek | Fair | 25.9 ft | 11 | 1940 |
| Local over Branch Twelve Mile Creek | Fair | 20.0 ft | 11 | 1989 |
| Local over Four Mile Creek | Fair | 40.0 ft | 11 | 1988 |
| Local over Drainage | Fair | 25.9 ft | 11 | 1990 |
| Airport Rd. over Small Stream | Fair | 30.8 ft | 11 | 2005 |
| Local over Creek | Fair | 23.0 ft | 10 | 1950 |
| M AVE over Branch Iowa River | Fair | 24.9 ft | 5 | 1983 |
| US 30 over Stream | Good | 25.9 ft | 11,500 | 1996 |
| US 30 WB over Slip Bridge Ramp | Good | 158.5 ft | 7,600 | 2010 |
| US 30 WB over Salt Creek | Good | 461.0 ft | 6,600 | 2019 |
| US 30 over Trib To Iowa River | Good | 24.9 ft | 6,500 | 2008 |
| US 30 WB over Iowa River | Good | 544.0 ft | 5,950 | 2002 |
| US 30 WB over Iowa River East Overflow | Good | 152.9 ft | 5,950 | 2021 |
| US 30 EB over Iowa River | Good | 544.0 ft | 5,850 | 2005 |
| US 30 EB over Iowa River East Overflow | Good | 152.9 ft | 5,850 | 2020 |
| IRR BIA RTE 1101 over Drainage Ditch | Good | 24.9 ft | 5,358 | 1994 |
| US 30 over Salt Creek | Good | 409.1 ft | 4,510 | 1989 |
| US 63 over Wolf Creek | Good | 251.0 ft | 4,170 | 1972 |
| US 63 over Minnow Creek | Good | 38.1 ft | 3,900 | 1976 |
| US 63 NB over US 30 | Good | 244.8 ft | 3,900 | 2008 |
| US 63 SB over US 30 | Good | 244.1 ft | 3,800 | 2008 |
| US 30 WB over Deer Creek | Good | 203.4 ft | 3,800 | 2010 |
| US 63 over 12 Mile Creek | Good | 183.4 ft | 3,770 | 1956 |
| US 30 EB over Deer Creek | Good | 203.4 ft | 3,700 | 2010 |
| US 30 WB over Otter Creek | Good | 307.4 ft | 3,300 | 2019 |
| US 30 EB over Otter Creek | Good | 307.4 ft | 3,250 | 2019 |
| Bus US 30 over Deer Creek | Good | 216.9 ft | 2,942 | 2023 |
| US 63 over Richland Creek | Good | 209.0 ft | 2,490 | 1978 |
| US 30 WB over Business US 30 | Good | 212.3 ft | 2,460 | 2009 |
| US 30 EB over Business US 30 | Good | 212.3 ft | 2,410 | 2009 |
| Old US 30 over Mud Creek | Good | 44.9 ft | 2,098 | 2011 |
| Ia 8 over Coon Creek | Good | 139.1 ft | 1,950 | 1989 |
| Broadway ST over Reloc US 30 | Good | 190.0 ft | 1,628 | 2010 |
| L Avenue over US 30 | Good | 250.0 ft | 1,100 | 2008 |
| Irr-fm over Deer Creek | Good | 140.1 ft | 874 | 1980 |
| Station Street over Otter Creek | Good | 169.9 ft | 759 | 2007 |
| FM over Branch Salt Creek | Good | 28.9 ft | 727 | 1994 |
| First ST over Deer Creek | Good | 134.8 ft | 689 | 1996 |
| Irr-fm over Over Up Rr | Good | 216.9 ft | 619 | 1993 |
| FM over Branch Iowa River | Good | 112.9 ft | 550 | 1999 |
| E44 1st ST over Troublesome Creek | Good | 91.9 ft | 519 | 2015 |
| E64 over Branch Of Iowa River | Good | 24.9 ft | 491 | 2020 |
| IRR FM over Raven Creek | Good | 128.0 ft | 471 | 2000 |
| IRR FM over Richland Creek | Good | 127.0 ft | 471 | 1994 |
| Irish ST over Otter Creek | Good | 175.9 ft | 360 | 1994 |
| FM over Indian Creek | Good | 75.1 ft | 334 | 1984 |
| E44 1st ST over Drainage | Good | 90.9 ft | 310 | 2016 |
| IRR BIA Route 12 over Iowa Drainage Ditch | Good | 24.3 ft | 300 | 2001 |
| 1st Street over Coon Creek | Good | 81.0 ft | 281 | 2022 |
| FM over Branch Twelve Mile Creek | Good | 24.9 ft | 275 | 2003 |
| FM over Richland Creek | Good | 128.0 ft | 265 | 1996 |
| IRR BIA RTE 2 over Iowa River Overflow | Good | 44.9 ft | 250 | 1998 |
| FM over Salt Creek | Good | 274.0 ft | 226 | 1998 |
| FM over Iowa River | Good | 523.0 ft | 206 | 1954 |
| Broad Street over Stream | Good | 25.9 ft | 196 | 2006 |
| FM over Branch Wolf Creek | Good | 24.9 ft | 167 | 1991 |
| Local over Deer Creek | Good | 152.9 ft | 140 | 2006 |
| Local over Branch Wolf Creek | Good | 89.9 ft | 128 | 2003 |
| FM over Salt Creek | Good | 103.0 ft | 128 | 2003 |
| Mill ST over Wolf Creek | Good | 129.9 ft | 120 | 2014 |
| Fourth ST over Salt Creek | Good | 163.1 ft | 100 | 2004 |
| 370th ST over Richland Creek | Good | 24.9 ft | 97 | 2013 |
| C AVE over Wolf Creek | Good | 248.0 ft | 97 | 2015 |
| Local over Deer Creek | Good | 38.1 ft | 88 | 1994 |
| FM over Little Wolf Creek | Good | 87.9 ft | 69 | 1995 |
| FM over Branch Iowa River | Good | 21.0 ft | 59 | 2003 |
| Local over Branch Iowa River | Good | 116.1 ft | 59 | 2002 |
| FM over Branch Wolf Creek | Good | 92.8 ft | 59 | 1999 |
| Local over Twelve Mile Creek | Good | 169.0 ft | 59 | 1989 |
| 9th ST over Mud Creek | Good | 25.9 ft | 57 | 2014 |
| Grand ST over Drainage | Good | 24.9 ft | 54 | 2016 |
| 380th ST over Iowa River | Good | 367.1 ft | 49 | 2017 |
| Local over Richland Creek | Good | 35.1 ft | 49 | 2002 |
| P AVE over Branch Of Otter Creek | Good | 24.9 ft | 49 | 2010 |
| Local over Crystal Creek | Good | 24.9 ft | 49 | 2006 |
| T53 F AVE over Branch Black Hawk Creek | Good | 28.9 ft | 49 | 2019 |
| 380th ST over Pond Near Iowa River | Good | 101.0 ft | 49 | 2017 |
| 230th ST over East Branch Salt Creek | Good | 103.0 ft | 44 | 2014 |
| 270th ST over Sugar Creek | Good | 92.8 ft | 44 | 2013 |
| 140th ST over Branch Of Wolf Creek | Good | 26.9 ft | 44 | 2020 |
| 130th ST over Twelve Mile Creek | Good | 123.0 ft | 44 | 2017 |
| Local over Given Creek | Good | 69.9 ft | 44 | 2006 |
| FM over Twelve Mile Creek | Good | 24.9 ft | 44 | 1999 |
| Local over Wolf Creek | Good | 125.0 ft | 44 | 1992 |
| P AVE over Branch Coon Creek | Good | 35.1 ft | 40 | 2024 |
| E AVE over Branch Wolf Creek | Good | 21.0 ft | 40 | 2024 |
| 250th ST over Branch Jordan Creek | Good | 22.0 ft | 39 | 2019 |
| FM over Branch Iowa River | Good | 132.9 ft | 39 | 2011 |
| P AVE over Stony Creek | Good | 23.0 ft | 39 | 2021 |
| Local over Branch Wolf Creek | Good | 103.0 ft | 39 | 2007 |
| 220th ST over Small Stream | Good | 24.9 ft | 35 | 2024 |
| B AVE over Sugar Creek | Good | 101.0 ft | 34 | 2022 |
| FM over Wolf Creek | Good | 103.0 ft | 34 | 2003 |
| P AVE over North Walnut Creek | Good | 121.1 ft | 33 | 2023 |
| Local over East Branch Salt Creek | Good | 69.9 ft | 33 | 2002 |
| Local Road over Branch Mosquito Creek | Good | 40.0 ft | 33 | 2000 |
| 220th ST over Branch Salt Creek | Good | 90.9 ft | 30 | 2022 |
| T 53 F AVE over Branch Wolf Creek | Good | 21.0 ft | 30 | 2024 |
| Local over Abes Fork | Good | 49.9 ft | 29 | 2001 |
| FM over Richland Creek | Good | 70.9 ft | 29 | 2007 |
| Local over South Branch Salt Creek | Good | 60.0 ft | 29 | 1945 |
| M AVE over Small Creek | Good | 22.0 ft | 29 | 2023 |
| Local over Branch Of Raven Creek | Good | 69.9 ft | 26 | 2010 |
| Local over Richland Creek | Good | 69.9 ft | 26 | 2008 |
| W AVE over East Branch Salt Creek | Good | 35.1 ft | 26 | 2014 |
| M AVE over Wolf Creek | Good | 246.1 ft | 26 | 2021 |
| M AVE over Four Mile Creek | Good | 141.1 ft | 26 | 2021 |
| Abbott AVE over Devils Run | Good | 21.7 ft | 26 | 2017 |
| K AVE over Given Creek | Good | 35.1 ft | 26 | 2014 |
| K AVE over North Walnut Creek | Good | 90.9 ft | 25 | 2024 |
| 260th ST over Branch Deer Creek | Good | 24.9 ft | 20 | 2010 |
| 230th ST over Sugar Creek | Good | 49.9 ft | 20 | 2023 |
| Local over Sugar Creek | Good | 89.9 ft | 20 | 2006 |
| B AVE over Sugar Creek | Good | 103.0 ft | 20 | 2005 |
| B AVE over Sugar Creek | Good | 89.9 ft | 20 | 2006 |
| FM over Br Four Mile Crk | Good | 25.9 ft | 20 | 1990 |
| G AVE over Abes Fork | Good | 49.9 ft | 15 | 2016 |
| 280th ST over Branch Iowa River | Good | 132.9 ft | 15 | 2017 |
| FM over Salt Creek | Good | 153.9 ft | 15 | 2003 |
| FM over Branch Of Salt Creek | Good | 69.9 ft | 15 | 2002 |
| J AVE over Wolf Creek | Good | 81.0 ft | 15 | 2014 |
| T AVE over Branch Wolf Creek | Good | 22.0 ft | 15 | 2019 |
| Local over Richland Creek | Good | 89.9 ft | 11 | 2010 |
| 270th ST over So Branch Salt Creek | Good | 70.9 ft | 11 | 2014 |
| 260th ST over Branch Iowa River | Good | 63.0 ft | 11 | 2016 |
| Local over Four Mile Creek | Good | 40.0 ft | 11 | 2001 |
| Local over Branch Of Richland Creek | Good | 36.1 ft | 5 | 1945 |
| Local over East Branch Salt Creek | Good | 69.9 ft | 5 | 2003 |
| Local over Salt Creek | Good | 99.1 ft | 5 | 2003 |
| Local over Branch Otter Creek | Good | 20.0 ft | 0 | 1994 |
| IRR Lcl-sdb over Iowa River Overflow | Good | 43.0 ft | 0 | 1998 |