| Con 2589 over I 90 | 2010 | 27,200 | Good |
| I 90 over Dobbins Creek | 2009 | 18,300 | Good |
| I 90 over Rose Creek | 1959 | 13,166 | Poor |
| I 90 over Rose Creek | 1959 | 13,166 | Fair |
| I 90 EB over Cedar River | 2024 | 11,649 | Good |
| I 90 over Cedar River | 1958 | 11,649 | Fair |
| I 90 over N Fk Bear Creek | 1961 | 10,728 | Poor |
| I 90 over Rose Creek | 1960 | 10,400 | Fair |
| I 90 over 6TH St NE | 1958 | 9,340 | Fair |
| I 90 over 6TH St NE | 1958 | 9,340 | Fair |
| Msas 139 over Cedar River | 1932 | 9,200 | Fair |
| I 90 over 12 Ave NW; Turtle Creek | 2009 | 8,350 | Good |
| I 90 over 12 Ave NW; Turtle Creek | 2010 | 8,350 | Good |
| Msas 139 over Dobbins Creek | 2016 | 6,900 | Good |
| US 218 over I 90 | 1966 | 6,601 | Fair |
| US 218 over I 90 | 1966 | 6,600 | Fair |
| Mn 105 over I 90 | 2024 | 5,777 | Good |
| Mn 105 over Turtle Creek | 1988 | 5,777 | Good |
| Mn 105 over Turtle Creek | 1957 | 5,698 | Fair |
| US 218 over Ditch | 1927 | 5,130 | Fair |
| US 218 over Murphy Creek | 1965 | 5,130 | Fair |
| Msas 144 over I 90 | 2017 | 4,400 | Good |
| US 218 over Ditch | 1927 | 4,200 | Fair |
| US 218 over Ditch | 1927 | 4,200 | Fair |
| US 63 over Bear Creek | 1969 | 4,170 | Fair |
| US 63 over Deer Creek | 1969 | 4,170 | Fair |
| US 218 over Rose Creek | 1983 | 3,946 | Fair |
| US 218 over I 90 | 1959 | 3,900 | Poor |
| Csah 45 over Murphy Creek | 2010 | 3,850 | Good |
| Msas 105 over Cedar River | 1979 | 3,800 | Fair |
| Msas 134 over Dobbins Creek | 1932 | 3,700 | Poor |
| Msas 117 over Cedar River | 1971 | 3,400 | Fair |
| Msas 121 over Cedar River | 1960 | 3,300 | Fair |
| Mn 56 over Dobbins Creek | 1932 | 2,900 | Fair |
| Mn 56 over I 90 | 1959 | 2,900 | Fair |
| Mn 56 over Stream | 1955 | 2,900 | Fair |
| Mn 56 over Stream | 1972 | 2,900 | Good |
| Mn 56 over Wolf Creek | 1932 | 2,900 | Fair |
| Csah 29 over Cedar River | 1933 | 2,750 | Fair |
| US 218 over Stream | 1929 | 2,701 | Fair |
| Mn 16 over Deer Creek | 1977 | 2,550 | Fair |
| Mn 16 over Stream | 2019 | 2,550 | Good |
| Mn 56 over Rose Creek | 1950 | 2,533 | Fair |
| Mn 56 over Little Cedar River | 2015 | 2,263 | Fair |
| Mn 56 over Stream | 2015 | 2,182 | Good |
| Mn 56 over Roberts Creek | 1955 | 2,175 | Good |
| Mn 56 over Stream | 1929 | 2,175 | Fair |
| Mn 56 over Stream | 1955 | 2,175 | Fair |
| Csah 16 over Wolf Creek | 2017 | 1,950 | Good |
| Csah 8 over S Fk Bear Creek | 1995 | 1,950 | Fair |
| Mn 16 over I 90 | 1961 | 1,724 | Fair |
| Mn 16 over Unnamed Stream | 2019 | 1,724 | Good |
| Mn 16 over Unnamed Stream | 2019 | 1,724 | Good |
| CR 61 over Dobbins Creek | 1973 | 1,700 | Fair |
| Csah 23 over Turtle Creek | 2012 | 1,700 | Good |
| Mn 56 over Little Cedar River | 1992 | 1,578 | Good |
| Msas 129 over Red Cedar River | 1966 | 1,550 | Fair |
| Csah 8 over Carys Creek | 2003 | 1,500 | Good |
| Csah 8 over N Fk Bear Creek | 1970 | 1,500 | Fair |
| Csah 14 over Upper Iowa River | 1955 | 1,400 | Poor |
| Mn 56 over N Br Upper Iowa River | 1940 | 1,357 | Fair |
| Mn 56 over N Br Upper Iowa River | 1983 | 1,357 | Fair |
| Mn 56 over Stream | 1940 | 1,357 | Fair |
| Mn 56 over Stream | 1940 | 1,357 | Poor |
| Csah 7 over Little Cedar River | 1975 | 1,300 | Poor |
| Csah 7 over Stream | 2013 | 1,300 | Good |
| Csah 14 over Little Iowa River | 1968 | 1,200 | Fair |
| Csah 12 over Stream | 1977 | 1,100 | Fair |
| Msas 152 over Dobbins Creek | 2007 | 1,100 | Good |
| Csah 46 over I 90 | 2021 | 1,050 | Good |
| Csah 46 over S Br Dobbins Creek | 2023 | 1,050 | Good |
| Csah 46 over Trib to Dobbins Creek | 2023 | 1,050 | Good |
| Csah 7 over Little Cedar River | 2019 | 1,050 | Good |
| Msas 107 over Cedar River | 1968 | 1,000 | Fair |
| Csah 2 over Cedar River | 2024 | 990 | Good |
| Mn 56 over Trib to Upper Iowa R | 1992 | 977 | Fair |
| Mn 56 over Upper Iowa River | 1992 | 977 | Fair |
| Csah 28 over Cedar River | 1959 | 960 | Poor |
| Csah 28 over Stream | 2017 | 960 | Good |
| Csah 25 over Cedar River | 1968 | 949 | Poor |
| Csah 14 over S Br Root River | 2001 | 880 | Fair |
| Csah 12 over Upper Iowa River | 1977 | 875 | Fair |
| Csah 29 over Stream | 1979 | 830 | Good |
| Csah 8 over Deer Creek | 2008 | 760 | Fair |
| Csah 6 over Stream | 1994 | 750 | Fair |
| Csah 25 over Stream | 2014 | 740 | Good |
| Csah 6 over Cedar River | 1953 | 730 | Fair |
| Csah 1 over Stream | 2017 | 610 | Good |
| Mn 105 over Orchard Creek | 1978 | 610 | Good |
| Csah 8 over Jud Ditch # 1 | 2011 | 600 | Good |
| Csah 8 over Upper Iowa River | 2004 | 600 | Fair |
| Csah 2 over Stream | 1995 | 570 | Good |
| Csah 1 over Cedar River | 2013 | 560 | Good |
| Csah 1 over Stream | 2000 | 560 | Fair |
| Csah 19 over Stream | 1978 | 560 | Fair |
| Csah 4 over Rose Creek | 1973 | 560 | Poor |
| Csah 4 over Rose Creek | 1957 | 560 | Fair |
| CR 61 over Wolf Creek | 1985 | 550 | Fair |
| Csah 1 over I 90 | 1961 | 545 | Fair |
| Csah 28 over Orchard Crk | 2000 | 540 | Good |
| Csah 29 over Rose Creek | 1966 | 530 | Poor |
| Csah 6 over Otter Creek | 1974 | 520 | Fair |
| Csah 6 over Stream | 1998 | 520 | Fair |
| Csah 6 over Stream | 1998 | 520 | Good |
| Csah 6 over Woodbury Creek | 1999 | 520 | Fair |
| Csah 19 over Rose Creek | 1965 | 480 | Fair |
| Csah 24 over Dobbins Creek | 2005 | 475 | Fair |
| Csah 24 over Roberts Creek | 2000 | 475 | Good |
| Csah 21 over Trib to Orchard Creek | 2012 | 470 | Good |
| Csah 6 over Trib to Little Cedar Rvr | 2009 | 460 | Good |
| Csah 25 over Trib to Cedar River | 2000 | 445 | Fair |
| Csah 1 over N Br Root River | 2015 | 440 | Good |
| Csah 6 over Little Cedar River | 1982 | 405 | Fair |
| T 127 over Trib of N Br Root R | 2003 | 401 | Fair |
| T 128 over Trib of N Br Root R | 2003 | 401 | Fair |
| Csah 13 over I 90 | 1960 | 375 | Poor |
| Csah 13 over Rose Creek | 2009 | 375 | Fair |
| Csah 16 over Wolf Creek | 2001 | 350 | Good |
| Csah 16 over Wolf Creek | 2005 | 350 | Fair |
| Csah 4 over Little Cedar River | 2021 | 340 | Good |
| Csah 4 over Trib Little Cedar River | 2021 | 340 | Good |
| Csah 4 over Trib Little Cedar River | 2021 | 340 | Good |
| Csah 4 over Trib to Little Cedar Rvr | 2018 | 340 | Good |
| Mn 105 over Roberts Crk(jd Ditch 77) | 1995 | 324 | Fair |
| T 95 over Trib of Cedar River | 2003 | 301 | Good |
| Csah 16 over Roberts Creek | 2020 | 300 | Good |
| Csah 46 over Stream | 2014 | 295 | Fair |
| Csah 46 over Trib to Dobbins Creek | 2023 | 295 | Good |
| Csah 46 over Trib to Dobbins Creek | 2023 | 295 | Good |
| Csah 4 over Cedar River | 1965 | 290 | Fair |
| Csah 7 over N Br Root River | 1968 | 285 | Poor |
| Csah 7 over N Br Root River | 1977 | 285 | Fair |
| Csah 7 over Stream | 1967 | 285 | Poor |
| Csah 7 over Stream | 2011 | 285 | Fair |
| Csah 11 over Little Iowa River | 1998 | 280 | Fair |
| Csah 11 over Little Iowa River | 1998 | 280 | Good |
| Csah 25 over Cedar River | 2010 | 275 | Fair |
| Csah 15 over I 90 | 1961 | 270 | Fair |
| Csah 15 over Robinson Creek | 1998 | 270 | Fair |
| Csah 4 over Orchard Creek | 2001 | 260 | Fair |
| Csah 5 over Otter Creek | 2003 | 260 | Good |
| Csah 5 over Woodbury Creek | 1939 | 260 | Fair |
| Csah 2 over Bear Creek | 1972 | 250 | Fair |
| Csah 20 over I 90 | 1960 | 250 | Poor |
| Csah 20 over Rose Creek | 2000 | 250 | Fair |
| Pvt 103 over Dobbins Creek | 1959 | 250 | Poor |
| Csah 3 over Rose Creek | 1999 | 240 | Good |
| Csah 5 over Cedar River | 2007 | 235 | Fair |
| Csah 2 over I 90 | 1961 | 220 | Good |
| Csah 11 over N Br Upper Iowa River | 1998 | 210 | Fair |
| Csah 11 over Upper Iowa River | 2013 | 210 | Good |
| Mn 105 over Woodbury Creek | 2010 | 199 | Good |
| Csah 20 over N Br Root River | 2009 | 190 | Fair |
| Csah 22 over Trib Cedar River | 2012 | 170 | Good |
| T 46 over Trib of Cedar R | 2003 | 161 | Fair |
| M 418 over Turtle Creek | 1974 | 150 | Fair |
| Csah 3 over S Br Root River | 1994 | 135 | Good |
| Csah 19 over Dobbins Creek | 1979 | 120 | Fair |
| Csah 19 over I 90 | 1963 | 120 | Fair |
| Csah 19 over Stream | 1991 | 120 | Good |
| CR 57 over Stream | 2017 | 108 | Good |
| CR 55 over Stream | 1980 | 100 | Fair |
| Csah 13 over Deer Creek | 1977 | 90 | Poor |
| T 289 over Ditch | 1917 | 90 | Fair |
| T 50 over Woodbury Creek | 1978 | 90 | Fair |
| T 209 over Rose Creek | 1999 | 80 | Good |
| T 209 over Schwerin Creek | 1999 | 80 | Good |
| T 448 over Little Iowa River | 2011 | 79 | Good |
| Csah 4 over Stream | 1978 | 75 | Fair |
| Csah 4 over Trib to Little Cedar Rvr | 2012 | 75 | Good |
| T 159 over Cedar River | 1977 | 72 | Fair |
| T 269 over Jud Ditch # 5 | 1991 | 70 | Good |
| Csah 9 over N Br Upper Iowa River | 1974 | 65 | Poor |
| T 292 over Turtle Creek | 1978 | 63 | Good |
| T 107 over Bear Creek | 1970 | 62 | Good |
| M 12 over Otter Creek | 2013 | 60 | Good |
| T 90 over Rose Creek | 1989 | 60 | Fair |
| T 107 over Deer Creek | 1973 | 57 | Fair |
| T 225 over Deer Creek | 1979 | 56 | Fair |
| T 328 over N Br Root River | 1973 | 55 | Fair |
| T 112 over Deer Creek | 1987 | 54 | Fair |
| T 173 over Stream | 1936 | 54 | Fair |
| T 411 over Stream | 1987 | 53 | Good |
| M 3 over Murphy Creek | 2007 | 50 | Fair |
| M 3 over Schwerin Creek | 1936 | 50 | Poor |
| T 107 over S Br Root River | 2000 | 50 | Good |
| T 127 over N Br Root River | 2006 | 50 | Good |
| T 151 over Deer Creek | 1976 | 50 | Fair |
| T 176 over Robinson Creek | 2000 | 50 | Fair |
| T 200 over Rose Creek | 2006 | 50 | Good |
| T 220 over Stream | 1994 | 50 | Good |
| T 24 over Stream | 2003 | 50 | Good |
| T 27 over Upper Iowa River | 2003 | 50 | Good |
| T 279 over Stream | 2006 | 50 | Good |
| T 283 over Bear Creek | 2001 | 50 | Good |
| T 1 over Trib to Deer Creek | 2008 | 49 | Good |
| T 107 over Carys Creek | 2015 | 49 | Good |
| T 109 over N Fk Bear Creek | 2009 | 49 | Good |
| T 12 over Jud Ditch # 1 | 2018 | 49 | Good |
| T 12 over S Br Root River | 2021 | 49 | Good |
| T 122 over Stream | 2024 | 49 | Good |
| T 123 over N Branch Root River Trib | 2019 | 49 | Good |
| T 128 over N Br Root River | 2008 | 49 | Fair |
| T 128 over Trib Rose Creek | 2020 | 49 | Good |
| T 130 over Dobbins Creek | 2012 | 49 | Good |
| T 136 over Roberts Creek | 2014 | 49 | Good |
| T 136 over Stream | 2014 | 49 | Good |
| T 14 over Stream | 2018 | 49 | Good |
| T 140 over Ditch | 2018 | 49 | Good |
| T 140 over Roberts Creek | 2013 | 49 | Good |
| T 141 over Cedar River Tributary | 2023 | 49 | Good |
| T 141 over Roberts Creek | 1979 | 49 | Fair |
| T 141 over Stream | 2023 | 49 | Good |
| T 157 over S Br Dobbins Creek | 2021 | 49 | Good |
| T 169 over Carys Creek | 2024 | 49 | Good |
| T 178 over Stream | 2015 | 49 | Good |
| T 19 over Little Cedar River | 2020 | 49 | Good |
| T 199 over Dobbins Creek | 2013 | 49 | Good |
| T 201 over Stream | 2013 | 49 | Fair |
| T 22 over Trib to Upper Iowa River | 2020 | 49 | Good |
| T 23 over Little Iowa River | 2018 | 49 | Good |
| T 240 over S Br Root River | 2013 | 49 | Good |
| T 240 over Stream | 2017 | 49 | Good |
| T 245 over N Br Upper Iowa River | 2008 | 49 | Good |
| T 245 over Trib to Upper Iowa River | 2012 | 49 | Good |
| T 247 over Stream | 2014 | 49 | Good |
| T 247 over Trib to Roberts Crk | 2013 | 49 | Good |
| T 267 over Roberts Creek | 2014 | 49 | Fair |
| T 282 over N Fk Bear Creek | 2014 | 49 | Good |
| T 284 over Bear Creek | 1996 | 49 | Fair |
| T 29 over Stream | 2014 | 49 | Fair |
| T 296 over Dobbins Creek | 2009 | 49 | Good |
| T 296 over Trib to Dobbins Creek | 2008 | 49 | Fair |
| T 298 over N Br Dobbins Creek | 2009 | 49 | Fair |
| T 385 over Dobbins Creek | 2018 | 49 | Good |
| T 39 over Orchard Creek | 2023 | 49 | Good |
| T 39 over Orchard Creek Tributary | 2023 | 49 | Good |
| T 45 over Woodbury Creek | 2019 | 49 | Good |
| T 47 over Trib to Cedar River | 2009 | 49 | Good |
| T 48 over Trib Little Cedar River | 2012 | 49 | Good |
| T 5 over Schwerin Creek | 2018 | 49 | Good |
| T 56 over Stream | 2011 | 49 | Fair |
| T 56 over Wapsipincon River | 2009 | 49 | Good |
| T 65 over the Little Cedar River | 2019 | 49 | Good |
| T 68 over Woodbury Creek | 1965 | 49 | Poor |
| T 7 over Trib Deer Creek | 2021 | 49 | Good |
| T 90 over Otter Creek | 2011 | 49 | Good |
| T 90 over Otter Creek | 2018 | 49 | Good |
| T 93 over Trib to Rose Creek | 2020 | 49 | Good |
| T 95 over Stream | 2014 | 49 | Good |
| T 95 over Stream | 2017 | 49 | Good |
| M 14 over Stream | 1994 | 47 | Fair |
| T 225 over Stream | 2007 | 47 | Fair |
| T 296 over Wolf Creek | 1996 | 47 | Fair |
| T 335 over Carys Creek | 1981 | 47 | Fair |
| T 221 over S Fk Bear Creek | 1991 | 46 | Fair |
| CR 59 over Rose Creek | 1931 | 45 | Poor |
| T 249 over Bear Creek | 1974 | 45 | Fair |
| T 53 over Otter Creek | 1976 | 45 | Fair |
| T 69 over Stream | 1988 | 45 | Fair |
| T 267 over Trib to Roberts Creek | 2007 | 44 | Good |
| T 56 over Little Cedar River | 1999 | 44 | Good |
| T 54 over Rose Creek | 2000 | 43 | Fair |
| T 140 over Stream | 1987 | 42 | Good |
| M 16 over Little Cedar River | 2004 | 40 | Good |
| T 199 over Stream | 1976 | 40 | Fair |
| T 237 over Upper Iowa River | 1981 | 40 | Fair |
| T 284 over Bear Creek | 1995 | 40 | Fair |
| T 330 over Stream | 1983 | 40 | Good |
| T 48 over Stream | 1981 | 40 | Good |
| T 92 over Stream | 1982 | 40 | Good |
| T 104 over Bear Creek | 1978 | 38 | Fair |
| T 385 over Dobbins Crk | 2000 | 38 | Fair |
| T 56 over Stream | 1988 | 38 | Fair |
| T 12 over S Br Root River | 1993 | 37 | Fair |
| T 359 over Stream | 1986 | 36 | Fair |
| T 118 over Stream | 1992 | 35 | Good |
| T 37 over Orchard Creek | 1981 | 35 | Good |
| T 55 over Otter Creek | 2004 | 35 | Good |
| T 61 over Wapsipincon River | 1984 | 35 | Good |
| T 93 over Rose Creek | 2002 | 35 | Good |
| T 110 over Carys Creek | 1985 | 34 | Fair |
| T 146 over Ditch | 2004 | 34 | Good |
| T 173 over Carys Creek | 2001 | 34 | Good |
| T 24 over Stream | 1990 | 34 | Good |
| T 44 over Stream | 1986 | 34 | Fair |
| T 138 over Ditch | 1982 | 33 | Fair |
| T 266 over Roberts Creek | 1979 | 32 | Fair |
| T 48 over Little Cedar River | 1985 | 32 | Fair |
| T 523 over Stream | 1979 | 31 | Fair |
| T 112 over Bear Creek | 2004 | 30 | Good |
| T 146 over Ditch | 1917 | 30 | Fair |
| T 169 over Trib of Carey Creek | 2001 | 30 | Good |
| T 47 over 585th AVE (TWP 47) | 2004 | 30 | Fair |
| T 18 over Rose Creek | 1976 | 29 | Poor |
| T 251 over Cedar River | 1973 | 29 | Fair |
| T 107 over Jud Ditch # 1 | 1988 | 28 | Fair |
| T 247 over N Br Root River | 1974 | 28 | Fair |
| T 94 over Stream | 1985 | 28 | Fair |
| T 247 over Stream | 1996 | 27 | Good |
| T 217 over N Br Upper Iowa River | 1991 | 26 | Good |
| T 240 over Stream | 1990 | 26 | Good |
| T 228 over Little Iowa River | 1916 | 25 | Fair |
| T 228 over S Br Root River | 2004 | 25 | Fair |
| T 23 over Stream | 2002 | 25 | Good |
| T 240 over Jud Ditch # 1 | 1994 | 25 | Fair |
| T 27 over Upper Iowa River | 1978 | 25 | Fair |
| T 27 over Upper Iowa River | 1986 | 25 | Fair |
| T 112 over N Fk Bear Creek | 1993 | 24 | Good |
| T 114 over Carys Creek | 1994 | 24 | Fair |
| T 131 over N Br Root River | 1993 | 24 | Fair |
| T 146 over Trib to Cedar River | 2007 | 24 | Good |
| T 179 over Stream | 1979 | 24 | Fair |
| T 257 over Turtle Creek | 1979 | 24 | Fair |
| T 313 over Otter Creek | 1992 | 24 | Fair |
| T 92 over Rose Creek | 1994 | 24 | Fair |
| T 146 over Ditch | 1923 | 23 | Poor |
| T 208 over Stream | 1980 | 22 | Fair |
| T 49 over Woodbury Creek | 1921 | 21 | Fair |
| CR 60 over Rose Creek | 1931 | 20 | Poor |
| T 124 over Stream | 1917 | 20 | Poor |
| T 124 over Stream | 2001 | 20 | Fair |
| T 162 over Wolf Creek | 1999 | 20 | Good |
| T 25 over Little Iowa River | 2001 | 20 | Fair |
| T 250 over Ditch | 1917 | 20 | Fair |
| T 319 over Orchard Creek | 1974 | 20 | Fair |
| T 54 over Ditch | 2007 | 20 | Good |
| T 125 over Stream | 1983 | 19 | Fair |
| T 242 over Deer Creek | 1995 | 16 | Fair |
| T 118 over Robinson Creek | 2000 | 12 | Good |
| T 130 over N Br Dobbins Creek | 1979 | 12 | Fair |
| T 157 over Rose Creek | 2002 | 12 | Fair |
| T 230 over Little Iowa River | 1999 | 12 | Good |
| T 37 over Stream | 1998 | 11 | Good |
| Loc 1 over Wolf Creek | 2007 | 10 | Fair |
| T 112 over Jud Ditch # 1 | 1979 | 10 | Good |
| T 21 over Trib to Upper Iowa River | 1999 | 10 | Good |
| T 128 over Rose Creek | 1917 | 8 | Poor |
| T 220 over Stream | 1926 | 8 | Fair |
| T 279 over Little Cedar River | 1987 | 8 | Fair |
| Pvt 111 over N Br Upper Iowa R | 1940 | 5 | Fair |
| T 150 over Robinson Creek | 1917 | 4 | Poor |
| T 263 over Stream | 1926 | 4 | Poor |