| Ia 175 over I-29 | Poor | 248.0 ft | 4,090 | 1959 |
| Ia 141 & 175 over Maple River | Poor | 305.1 ft | 3,720 | 1967 |
| FM over Diversion Ditch | Poor | 271.0 ft | 597 | 1962 |
| FM over Dd | Poor | 182.1 ft | 597 | 1959 |
| FM over Famers Garretson Ditch | Poor | 219.2 ft | 578 | 1962 |
| FM over Soldier River | Poor | 304.1 ft | 349 | 1955 |
| FM over Haitz Dd | Poor | 169.0 ft | 229 | 1961 |
| FM over West Fork Dd | Poor | 208.0 ft | 229 | 1961 |
| FM over Willow Creek | Poor | 70.9 ft | 199 | 1979 |
| FM over Jordan Creek | Poor | 145.0 ft | 159 | 1958 |
| FM over Soldier Creek | Poor | 183.1 ft | 159 | 1949 |
| FM over Little Sioux River | Poor | 185.0 ft | 159 | 1925 |
| FM over Maple River | Poor | 305.1 ft | 150 | 1960 |
| FM over Little Sioux River | Poor | 252.0 ft | 150 | 1961 |
| FM over Little Sioux River | Poor | 252.0 ft | 131 | 1960 |
| Local over Stream | Poor | 23.0 ft | 80 | 1973 |
| FM over Nagel Dd | Poor | 305.1 ft | 79 | 1960 |
| FM over Stream | Poor | 57.1 ft | 71 | 1956 |
| FM over Jordan Creek | Poor | 128.9 ft | 60 | 1954 |
| Local over Stream | Poor | 24.9 ft | 60 | 1900 |
| FM over NE Norway Creek | Poor | 26.9 ft | 50 | 1949 |
| FM over Little Sioux River | Poor | 252.0 ft | 45 | 1960 |
| Local over Monona Harrison Dd | Poor | 182.1 ft | 45 | 1959 |
| FM over Sioux River | Poor | 57.1 ft | 45 | 1960 |
| Local over West Fork Dd | Poor | 169.0 ft | 45 | 1961 |
| FM over Willow Creek | Poor | 153.9 ft | 40 | 1952 |
| FM over Norway Creek | Poor | 30.8 ft | 40 | 1953 |
| FM over Soldier Creek | Poor | 212.9 ft | 40 | 1948 |
| Local over Mccandless Cleghorn Dd | Poor | 33.1 ft | 40 | 1970 |
| Local Road over Local Stream | Poor | 81.0 ft | 29 | 1962 |
| Local over Mccandless Cleghorn D D | Poor | 22.0 ft | 29 | 1997 |
| Local over Mccandless Cleghorn | Poor | 33.1 ft | 26 | 1976 |
| Local Road over Local Stream | Poor | 90.9 ft | 26 | 1964 |
| Local over Trib To Soldier River | Poor | 24.9 ft | 20 | 1990 |
| Local over Trib Maple River | Poor | 24.0 ft | 20 | 1900 |
| K53 Dogwood AVE over Mccandless Cleghorn | Poor | 29.9 ft | 20 | 1970 |
| Local over Jordan Creek | Poor | 147.0 ft | 15 | 1912 |
| Local over Willow Creek | Poor | 102.0 ft | 11 | 1978 |
| Local over Local Stream | Poor | 50.9 ft | 11 | 1900 |
| FM over Beaver Creek | Poor | 45.9 ft | 11 | 1958 |
| Local over Trib To Maple River | Poor | 76.1 ft | 5 | 1900 |
| Ia 175 over Drainage Ditch | Fair | 213.9 ft | 2,160 | 1964 |
| Ia 175 over Little Sioux River | Fair | 244.1 ft | 2,160 | 1959 |
| Ia 175 over Maple River | Fair | 241.1 ft | 1,870 | 1984 |
| Ia 175 over Missouri River | Fair | 1956.0 ft | 1,790 | 1950 |
| Ia 175 over Blue Lake Creek | Fair | 32.2 ft | 1,790 | 1955 |
| Ia 141 over Middle Soldier River | Fair | 214.9 ft | 1,490 | 1957 |
| Ia 175 over Maple River | Fair | 235.9 ft | 1,220 | 1972 |
| Ia 175 over Drainage Ditch | Fair | 25.9 ft | 1,220 | 1973 |
| Ia 175 over Mucky Creek | Fair | 98.1 ft | 1,220 | 1973 |
| Ia 175 over Drainage Ditch | Fair | 32.2 ft | 1,220 | 1973 |
| Ia 175 over Drainage Ditch | Fair | 44.9 ft | 1,220 | 1973 |
| E-24 (160th St) over I-29 | Fair | 237.9 ft | 788 | 1959 |
| Ia 37 over Beaver Creek | Fair | 211.9 ft | 780 | 1942 |
| Ia 141 over Soldier River | Fair | 245.1 ft | 780 | 1951 |
| Ia 37 over Soldier River | Fair | 243.1 ft | 620 | 1952 |
| Ia 37 over Norway Creek | Fair | 170.9 ft | 620 | 1959 |
| Ia 37 over Willow River | Fair | 184.1 ft | 620 | 1959 |
| Ia 183 over Soldier River | Fair | 235.9 ft | 580 | 1998 |
| K42 over I-29 | Fair | 254.9 ft | 390 | 1959 |
| FM over Stream | Fair | 24.9 ft | 329 | 1959 |
| E 60 over I-29 | Fair | 219.2 ft | 270 | 1967 |
| FM over Jordan Creek | Fair | 179.1 ft | 199 | 2000 |
| FM over Beaver CR | Fair | 20.0 ft | 150 | 1974 |
| FM over Cottonwood Creek | Fair | 20.0 ft | 150 | 1974 |
| FM over Monona Harrison Dd | Fair | 254.9 ft | 100 | 1974 |
| FM over I-29 | Fair | 217.8 ft | 79 | 1959 |
| Local over Skinner Creek | Fair | 21.0 ft | 79 | 1956 |
| FM over Jordan Creek | Fair | 128.9 ft | 60 | 1954 |
| Local over Mccandlesscleghrn Outlet | Fair | 34.1 ft | 60 | 1969 |
| Local over Mccandless Cleghorn Dd | Fair | 27.9 ft | 50 | 1971 |
| FM over New Farmer Main D.d. | Fair | 26.9 ft | 50 | 2002 |
| FM over Elk Creek | Fair | 44.9 ft | 45 | 1988 |
| FM over Mccandless Cleghorn D D | Fair | 29.9 ft | 45 | 1969 |
| Local over Diversion Ditch | Fair | 208.0 ft | 45 | 1961 |
| Plum AVE over Local Stream | Fair | 20.0 ft | 40 | 1950 |
| FM over Elk Creek | Fair | 44.9 ft | 40 | 1955 |
| FM over Stream | Fair | 24.0 ft | 40 | 1956 |
| FM over Stream | Fair | 22.0 ft | 40 | 1956 |
| 325th ST over I-29 | Fair | 217.8 ft | 34 | 1967 |
| FM over Haitz Dd | Fair | 182.1 ft | 34 | 1961 |
| FM over West Fork Dd | Fair | 208.0 ft | 34 | 1961 |
| Local over Mccabdless Cleghorn Dd | Fair | 40.0 ft | 34 | 2004 |
| FM over Stream | Fair | 21.0 ft | 29 | 1952 |
| FM over Mccandless Cleghorn | Fair | 30.8 ft | 29 | 1959 |
| Local RD over Small Stream | Fair | 21.0 ft | 26 | 1979 |
| FM over Crow Creek | Fair | 21.0 ft | 20 | 1955 |
| Local over Mccandlesscleghorn Ditch | Fair | 33.1 ft | 20 | 1971 |
| Local over Trib Maple River | Fair | 29.9 ft | 20 | 1900 |
| Local over Haitz Dd | Fair | 169.0 ft | 20 | 1962 |
| Local over Norway Creek | Fair | 201.1 ft | 15 | 1983 |
| FM over Willow Creek | Fair | 21.0 ft | 15 | 1955 |
| Local over Cottonwood Creek | Fair | 121.1 ft | 15 | 1949 |
| Local over Stream | Fair | 26.9 ft | 15 | 2002 |
| FM over Willow Creek | Fair | 182.1 ft | 11 | 1960 |
| Local over Skunk Creek | Fair | 24.9 ft | 11 | 1990 |
| Local over Heisler Creek | Fair | 65.9 ft | 11 | 1976 |
| Local over Dutch Creek | Fair | 24.0 ft | 11 | 1976 |
| Local over Soldier Valley D D | Fair | 24.9 ft | 5 | 1900 |
| Local RD over Gard Creek | Fair | 24.9 ft | 5 | 1954 |
| NB I-29 over Robinson Ditch | Good | 103.0 ft | 7,800 | 2011 |
| SB I-29 over Robinson Ditch | Good | 103.0 ft | 7,800 | 2009 |
| NB I-29 over Cleghorn Creek | Good | 123.4 ft | 7,250 | 2012 |
| SB I-29 over Cleghorn Creek | Good | 123.4 ft | 7,250 | 2011 |
| Ia 175 over Mccandlesscleghorn Ditch | Good | 100.7 ft | 5,300 | 2023 |
| Ia 141 over Simmons Creek | Good | 45.9 ft | 1,920 | 2014 |
| Ia 141 over Mucky Creek | Good | 22.0 ft | 1,500 | 1977 |
| Ia 175 over Drainage Ditch | Good | 25.9 ft | 1,460 | 1900 |
| Ia 175 over Stream | Good | 25.9 ft | 1,460 | 1952 |
| Ia 175 over Drainage Ditch | Good | 24.9 ft | 1,220 | 1973 |
| Ia 175 over Drainage Ditch | Good | 32.2 ft | 1,220 | 1973 |
| Ia 175 over Maple River | Good | 302.5 ft | 1,220 | 2022 |
| Ia 175 over Drainage Ditch | Good | 21.0 ft | 1,160 | 1973 |
| FM over Over Up Rr | Good | 336.0 ft | 1,017 | 2003 |
| FM over Drainage Ditch | Good | 78.1 ft | 1,017 | 1998 |
| Ia 175 over Drainage Ditch | Good | 33.1 ft | 990 | 1973 |
| K45 over Cleghorn Ditch | Good | 101.0 ft | 976 | 2019 |
| Ia 37 over East Willow River | Good | 300.9 ft | 830 | 1996 |
| Ia 37 over Jordan Creek | Good | 92.8 ft | 780 | 1979 |
| Local(whiting) over Mccandless Cleghorn | Good | 128.0 ft | 763 | 1997 |
| E16 over Rush Creek | Good | 179.1 ft | 627 | 2021 |
| Ia 183 over Overflow Channel | Good | 24.9 ft | 580 | 2008 |
| Ia 183 over Natural Stream | Good | 130.9 ft | 580 | 2015 |
| Ia 183 over Jordan Creek | Good | 204.1 ft | 580 | 1964 |
| Ia 183 over Stream | Good | 24.9 ft | 420 | 2011 |
| Local RD over Cleghorn Dd | Good | 34.1 ft | 319 | 2002 |
| E54 over Monona-harrison Ditch | Good | 213.9 ft | 289 | 2015 |
| E54 over Little Sioux River | Good | 318.9 ft | 289 | 2015 |
| E 34 over Jordan Creek | Good | 28.9 ft | 259 | 2012 |
| FM over Maple River | Good | 204.1 ft | 188 | 1957 |
| L16 over Elk Creek | Good | 103.0 ft | 170 | 2020 |
| FM over Soldier River | Good | 253.9 ft | 170 | 1957 |
| L16 over Beaver Creek | Good | 92.8 ft | 159 | 2020 |
| Tulip AVE over Upper Soldier River | Good | 153.9 ft | 159 | 2011 |
| 235th ST over Mccandless-cleghorn | Good | 70.9 ft | 150 | 2021 |
| FM over Little Sioux River | Good | 402.9 ft | 100 | 2007 |
| FM over I-29 | Good | 227.0 ft | 89 | 1967 |
| E26 160th ST over Rush Creek | Good | 141.1 ft | 79 | 2021 |
| FM over Simmons Creek | Good | 103.0 ft | 71 | 1987 |
| 140th ST over Stream | Good | 40.0 ft | 61 | 2024 |
| FM over I-29 | Good | 234.9 ft | 60 | 1959 |
| E46 245th ST over Soldier River | Good | 204.1 ft | 60 | 2020 |
| FM over Jordan Creek | Good | 180.1 ft | 60 | 1999 |
| West ST over Mccandles Ditch | Good | 92.8 ft | 56 | 2020 |
| FM over I-29 | Good | 217.8 ft | 50 | 1959 |
| Local over Soldier River | Good | 251.0 ft | 45 | 1992 |
| Sumac AVE over Skinner Creek | Good | 24.0 ft | 45 | 2008 |
| FM over Soldier River | Good | 336.9 ft | 40 | 2000 |
| Sumac AVE over Stream | Good | 23.0 ft | 40 | 2019 |
| Local Road over Stream | Good | 280.8 ft | 34 | 1999 |
| E64 Redwood AVE over Branch Of Elk Creek | Good | 50.9 ft | 34 | 2022 |
| Local over Norway Creek | Good | 24.9 ft | 29 | 2010 |
| Teak AVE over Local Stream | Good | 175.9 ft | 29 | 2017 |
| FM over Jordan Creek | Good | 128.9 ft | 29 | 1984 |
| 210th ST over Jordan Creek | Good | 53.1 ft | 29 | 2020 |
| 105th ST over Dutch Creek | Good | 30.8 ft | 29 | 2012 |
| 170th ST over Trib To Soldier River | Good | 24.0 ft | 20 | 2016 |
| Local over Soldier River | Good | 205.1 ft | 11 | 2009 |
| 245th ST over Jordan Creek | Good | 112.9 ft | 11 | 2016 |
| FM over Stream | Good | 28.9 ft | 11 | 1957 |