| FM over Brushy Fork Creek | Poor | 34.1 ft | 650 | 1964 |
| East ST over Willow Creek | Poor | 77.1 ft | 580 | 1964 |
| FM over Creek | Poor | 44.6 ft | 399 | 1939 |
| Local over Stream | Poor | 78.1 ft | 120 | 1970 |
| Local over Brushy Fork Creek | Poor | 92.8 ft | 60 | 1925 |
| E35 (200th St) over Field Stream | Poor | 31.2 ft | 60 | 1946 |
| Local over Willow Creek | Poor | 29.9 ft | 40 | 1900 |
| Local over Middle Racoon River | Poor | 113.8 ft | 34 | 1900 |
| Local over Field Stream | Poor | 23.0 ft | 29 | 1957 |
| Local over Field Stream | Poor | 45.9 ft | 26 | 1913 |
| Local over Brushy Fork Creek | Poor | 44.3 ft | 20 | 1974 |
| Local over Middle Raccoon River | Poor | 82.0 ft | 15 | 1914 |
| Local over Small | Poor | 23.6 ft | 11 | 1979 |
| Local over Middle Raccoon River | Poor | 124.0 ft | 11 | 1951 |
| Local over Field Stream | Poor | 24.9 ft | 11 | 1962 |
| Local (dead End over Field Stream | Poor | 37.7 ft | 11 | 1900 |
| Local over Buck Run | Poor | 50.2 ft | 11 | 1990 |
| US 30 over Ditch #77 | Fair | 24.9 ft | 13,000 | 1919 |
| US 30 over Storm Creek | Fair | 122.0 ft | 7,300 | 1955 |
| US 30 over Over Up Rr | Fair | 351.0 ft | 6,800 | 1982 |
| US 30 over Middle Raccoon River | Fair | 149.9 ft | 6,000 | 1982 |
| US 71 over Up Rr & RD | Fair | 460.0 ft | 5,600 | 1988 |
| Ia 141 over West Nishnabotna River | Fair | 92.8 ft | 3,550 | 1962 |
| US 71 over Stream | Fair | 103.0 ft | 3,350 | 1979 |
| Ia 141 over Stream | Fair | 21.0 ft | 2,230 | 1972 |
| 7th ST over Lateral #77 Dd #23 | Fair | 27.9 ft | 2,081 | 1900 |
| Ia 141 over Stream | Fair | 23.0 ft | 2,040 | 1972 |
| Ia 141 over East Nishnabotna River | Fair | 123.7 ft | 2,040 | 1971 |
| N 41 over Raccoon River | Fair | 246.1 ft | 1,146 | 1925 |
| 11th ST over Lateral #77 Dd #23 | Fair | 20.0 ft | 1,112 | 1900 |
| FM over Storm Creek | Fair | 44.0 ft | 1,047 | 1964 |
| 4th AVE over Brushy Fork | Fair | 128.0 ft | 1,018 | 1986 |
| Local Conty RD over Buck Run Creek | Fair | 55.4 ft | 933 | 1939 |
| FM over West Nishnabotna River | Fair | 49.9 ft | 847 | 1977 |
| FM over Beaman Creek | Fair | 43.0 ft | 748 | 1900 |
| FM over No Name Creek | Fair | 69.2 ft | 728 | 1971 |
| FM over Unnamed Creek | Fair | 21.0 ft | 728 | 1971 |
| FM over Storm Creek | Fair | 100.1 ft | 687 | 1964 |
| FM over Field Stream | Fair | 40.0 ft | 687 | 1964 |
| FM over East Boyer River | Fair | 87.9 ft | 687 | 1971 |
| FM over Brushy Fork Creek | Fair | 71.9 ft | 638 | 1968 |
| Pl Ridge RD over Timber Creek | Fair | 35.1 ft | 584 | 1995 |
| E16 over Marrowbone Creek | Fair | 124.0 ft | 558 | 1949 |
| 3rd ST over West Nishnabotna River | Fair | 81.0 ft | 541 | 1953 |
| FM over Middle Raccoon River | Fair | 128.9 ft | 537 | 1993 |
| Local over Field Stream | Fair | 34.1 ft | 459 | 1971 |
| 3rd ST over Middle Raccoon River | Fair | 127.0 ft | 433 | 1968 |
| Local over Field Stream | Fair | 91.9 ft | 379 | 1985 |
| Corp.line RD over Br West Nishnabota River | Fair | 44.3 ft | 289 | 1980 |
| Corp.line RD over West Nishnabotna River | Fair | 69.9 ft | 289 | 1980 |
| FM over Purgatory Creek | Fair | 100.1 ft | 180 | 1969 |
| 5th AVE over Lake Creek | Fair | 40.0 ft | 170 | 2007 |
| Local RD over Storm Creek | Fair | 77.1 ft | 131 | 1980 |
| FM over West Nishnabotna River | Fair | 103.0 ft | 120 | 1970 |
| Local over Field Stream | Fair | 42.0 ft | 120 | 1968 |
| FM over Marrowbone Creek | Fair | 77.1 ft | 110 | 1959 |
| M68 Delta AVE over Field Stream | Fair | 32.2 ft | 100 | 1952 |
| RT E45 over Middle Raccoon River | Fair | 125.0 ft | 100 | 1974 |
| FM over Elk Run Creek | Fair | 56.1 ft | 100 | 1956 |
| Local over Field Stream | Fair | 24.0 ft | 100 | 1966 |
| FM over Field Stream | Fair | 30.8 ft | 89 | 1962 |
| Local over Field Stream | Fair | 44.9 ft | 89 | 1961 |
| FM over Elk Run Creek | Fair | 44.3 ft | 89 | 1965 |
| Main ST over Middle Raccoon River | Fair | 127.0 ft | 85 | 1958 |
| Local over West Nishnabotna River | Fair | 102.0 ft | 79 | 1968 |
| Local over Field Stream | Fair | 29.9 ft | 79 | 1900 |
| Local over Spring Branch | Fair | 75.1 ft | 71 | 1966 |
| Local over Brushy Fork Creek | Fair | 44.9 ft | 71 | 1962 |
| E53 270th ST over Brushy Fork Creek | Fair | 45.9 ft | 71 | 1963 |
| Local over Doe Branch Creek | Fair | 77.1 ft | 71 | 1965 |
| FM over Field Stream | Fair | 38.1 ft | 71 | 1900 |
| FM over North Racoon River | Fair | 210.0 ft | 71 | 1940 |
| Local over Field Stream | Fair | 32.2 ft | 60 | 1950 |
| Local over West Nishnabotna River | Fair | 100.1 ft | 60 | 1959 |
| Local over Spring Branch Creek | Fair | 77.1 ft | 60 | 1981 |
| FM over Purgatory Creek | Fair | 57.1 ft | 60 | 1977 |
| E13 110th ST over Field Stream | Fair | 30.8 ft | 60 | 1973 |
| Local over Field Stream | Fair | 38.1 ft | 50 | 1972 |
| Local over Small Creek | Fair | 34.1 ft | 50 | 2011 |
| FM over Middle Raccoon River | Fair | 125.0 ft | 50 | 1982 |
| FM over Brushy Fork Creek | Fair | 32.2 ft | 50 | 1962 |
| Local over Middle Raccoon River | Fair | 128.9 ft | 50 | 1963 |
| FM over Brushy Fork Creek | Fair | 25.9 ft | 50 | 1976 |
| Local over Elk Run | Fair | 77.1 ft | 50 | 1958 |
| Local over Field Stream | Fair | 35.4 ft | 50 | 1971 |
| FM over Field Stream | Fair | 35.1 ft | 45 | 1951 |
| FM over Beaver Creek | Fair | 77.1 ft | 45 | 1955 |
| FM over Brushy Fork Creek | Fair | 149.9 ft | 45 | 1959 |
| FM over Nishnabotna River | Fair | 52.2 ft | 45 | 1900 |
| FM over West Nishnabotna River | Fair | 101.0 ft | 45 | 1991 |
| Local over Field Stream | Fair | 36.1 ft | 45 | 1993 |
| Local Sdb over Drainage | Fair | 21.0 ft | 45 | 1940 |
| Local over West Nishnabotna River | Fair | 102.0 ft | 40 | 1962 |
| Local over Field Stream | Fair | 42.7 ft | 40 | 1975 |
| FM over Field Stream | Fair | 30.8 ft | 40 | 1936 |
| FM over North Racoon River | Fair | 245.1 ft | 40 | 1925 |
| Local over Field Stream | Fair | 24.9 ft | 40 | 1990 |
| 200th ST over Brushy Fork Creek | Fair | 26.2 ft | 40 | 2011 |
| Local over Middle Raccoon River | Fair | 149.9 ft | 34 | 1963 |
| FM over Field Stream | Fair | 24.0 ft | 34 | 1986 |
| FM over Purgatory Creek | Fair | 100.1 ft | 34 | 1961 |
| M66 Birch AVE over No Name Creek | Fair | 21.0 ft | 34 | 1965 |
| Local over Elk Run | Fair | 91.9 ft | 34 | 1900 |
| FM over Field Stream | Fair | 24.9 ft | 34 | 1959 |
| Local over Storm Creek | Fair | 38.1 ft | 30 | 1993 |
| 320th ST over Field Stream | Fair | 23.0 ft | 29 | 1900 |
| Local over Field Stream | Fair | 58.1 ft | 29 | 1960 |
| Local over Field Stream | Fair | 44.9 ft | 29 | 1967 |
| Local over West Nishnabotna River | Fair | 76.1 ft | 29 | 1958 |
| Local over Middle Raccoon River | Fair | 109.9 ft | 29 | 1970 |
| Local over Purgatory Creek | Fair | 104.0 ft | 29 | 1963 |
| Local over Elk Run Creek | Fair | 24.9 ft | 29 | 1975 |
| Local over Willow Creek | Fair | 45.9 ft | 26 | 1900 |
| Local over Buck Run | Fair | 24.0 ft | 26 | 1952 |
| Local over Field Stream | Fair | 24.0 ft | 20 | 1950 |
| Local over Field Stream | Fair | 32.2 ft | 20 | 1996 |
| Local over Middle Raccoon River | Fair | 75.1 ft | 20 | 1974 |
| Local over Brushy Fork Creek | Fair | 118.1 ft | 15 | 1971 |
| Local over Brushy Fork Creek | Fair | 127.6 ft | 15 | 1951 |
| Local over Willow Creek | Fair | 33.1 ft | 15 | 1975 |
| Local over Field Stream | Fair | 37.1 ft | 11 | 1954 |
| Local over West Nishnabotna River | Fair | 103.0 ft | 11 | 1965 |
| Local over Drainage Ditch #73 | Fair | 34.1 ft | 11 | 1982 |
| Local over Field Stream | Fair | 25.9 ft | 11 | 1977 |
| Local over Field Stream | Fair | 24.0 ft | 11 | 1900 |
| Local over Field Stream | Fair | 33.1 ft | 11 | 1966 |
| Local over Stream | Fair | 24.9 ft | 5 | 1999 |
| Local over Field Stream | Fair | 46.9 ft | 5 | 1938 |
| Local over Purgatory Creek | Fair | 63.0 ft | 0 | 1900 |
| US 71 over Stream | Good | 25.9 ft | 5,600 | 2000 |
| US 71 over Middle Raccoon River | Good | 190.9 ft | 5,100 | 1985 |
| US 71 over Storm Creek | Good | 24.0 ft | 4,090 | 1973 |
| Grant RD over Middle Raccoon River | Good | 146.0 ft | 3,914 | 1986 |
| US 30 over East Boyer River | Good | 112.9 ft | 3,670 | 1997 |
| US 30 over Stream | Good | 28.9 ft | 3,670 | 1997 |
| US 30 over Stream | Good | 21.0 ft | 3,670 | 1997 |
| US 71 over Stream | Good | 36.1 ft | 3,350 | 1985 |
| US 71 over Over Bnsf Rr | Good | 163.1 ft | 2,830 | 1985 |
| US 71 over Stream | Good | 24.9 ft | 2,830 | 1985 |
| US 71 over Fork Of Brushy Creek | Good | 204.1 ft | 2,830 | 1994 |
| Main ST over Middle Racoon River | Good | 132.9 ft | 2,170 | 2005 |
| US 71 over E Nishnabotna River | Good | 160.1 ft | 1,970 | 1999 |
| FM over West Nishnabotna River | Good | 153.5 ft | 1,693 | 2010 |
| Center ST over Willow Creek | Good | 89.9 ft | 1,676 | 2020 |
| FM over Middle Raccoon River | Good | 150.9 ft | 1,623 | 2005 |
| Ia 141 over Brushy Creek | Good | 195.9 ft | 1,530 | 1976 |
| Ia 141 over Unnamed Stream | Good | 24.9 ft | 1,530 | 2014 |
| Ia 141 over Dedham Creek | Good | 24.9 ft | 1,290 | 2015 |
| FM over Spring Branch | Good | 90.9 ft | 1,186 | 1997 |
| FM over Storm Creek | Good | 102.0 ft | 1,146 | 1984 |
| FM over Field Stream | Good | 75.1 ft | 1,075 | 2005 |
| 4th AVE over Drainage | Good | 83.0 ft | 1,018 | 1997 |
| M68 Delta AVE over Field Stream | Good | 22.6 ft | 863 | 2011 |
| Delta AVE over West Nishnabotna River | Good | 123.4 ft | 847 | 2011 |
| FM over Field Stream | Good | 24.9 ft | 767 | 1994 |
| FM over Middle Raccoon River | Good | 125.0 ft | 737 | 1968 |
| FM over Unnamed Creek | Good | 57.1 ft | 728 | 1971 |
| FM over Brushy Fork Creek | Good | 90.9 ft | 638 | 1990 |
| RT M68 over Over Bnsf Rr | Good | 125.0 ft | 627 | 1990 |
| FM over Small Stream | Good | 24.0 ft | 588 | 1984 |
| Main ST over Willow Creek | Good | 80.7 ft | 566 | 2016 |
| Sumpter AVE over Middle Raccoon River | Good | 228.0 ft | 547 | 2002 |
| FM over Brushy Fork Creek | Good | 123.0 ft | 477 | 2008 |
| FM over Halbur CR Trib To Brushy | Good | 70.9 ft | 477 | 2010 |
| Local over Middle Raccoon River | Good | 128.0 ft | 459 | 1991 |
| East ST over Bnsf Rr | Good | 149.9 ft | 404 | 1995 |
| FM over Field Stream | Good | 78.1 ft | 358 | 2007 |
| E-60 over Dedham Creek | Good | 112.9 ft | 311 | 1977 |
| Bella Vista DR over Lateral #77 Dd #23 | Good | 109.9 ft | 293 | 1988 |
| Bass Street over Lateral #77 Dd #23 | Good | 25.9 ft | 188 | 2001 |
| Quail AVE over Middle Raccon River | Good | 143.0 ft | 180 | 2000 |
| FM over Willow Creek | Good | 78.1 ft | 170 | 1975 |
| FM over Small Stream | Good | 21.0 ft | 150 | 1987 |
| Local over Field Stream | Good | 26.6 ft | 150 | 2008 |
| FM over Middle Raccoon River | Good | 167.0 ft | 100 | 1995 |
| FM over Field Stream | Good | 78.4 ft | 100 | 1989 |
| FM over North Racoon | Good | 246.1 ft | 100 | 1989 |
| Local over Field Stream | Good | 25.9 ft | 89 | 1998 |
| Local over Brushy Fork Creek | Good | 181.1 ft | 89 | 2001 |
| Local over Brushy Creek | Good | 127.0 ft | 89 | 1984 |
| FM over Middle Racoon River | Good | 103.0 ft | 89 | 2003 |
| FM over Field Stream | Good | 34.1 ft | 89 | 2000 |
| 110th ST over Field Stream | Good | 33.1 ft | 89 | 2000 |
| 110th ST over Small Stream | Good | 33.1 ft | 89 | 2000 |
| Local over Middle Raccoon River | Good | 175.9 ft | 79 | 1997 |
| Local over Storm Creek | Good | 75.1 ft | 79 | 1987 |
| Kittyhawk AVE over Storm Creek Dd #23 | Good | 73.2 ft | 79 | 2013 |
| Local over Field Stream | Good | 30.8 ft | 71 | 2002 |
| Local over Brushy Fork Creek | Good | 143.0 ft | 71 | 1991 |
| 290th ST over Field Stream | Good | 73.2 ft | 71 | 2013 |
| Local over Field Stream | Good | 34.8 ft | 71 | 1995 |
| Local over Field Stream | Good | 29.9 ft | 71 | 2001 |
| 310th ST over Small Stream | Good | 22.0 ft | 71 | 1972 |
| 280th ST over Field Stream | Good | 83.0 ft | 60 | 2022 |
| FM over Spring Branch | Good | 128.0 ft | 60 | 1984 |
| Hawthorne AVE over Field Stream | Good | 33.5 ft | 60 | 2011 |
| FM over Storm Creek | Good | 127.0 ft | 60 | 1983 |
| Local over Storm Creek | Good | 103.0 ft | 60 | 2003 |
| Granite AVE over Field Stream | Good | 24.6 ft | 60 | 2011 |
| Local over Beaman Creek | Good | 45.9 ft | 60 | 2007 |
| 290th ST over Field Stream | Good | 21.0 ft | 50 | 2000 |
| Local over Field Stream | Good | 39.0 ft | 50 | 1995 |
| Kittyhawk AVE over Field Stream | Good | 35.1 ft | 50 | 2005 |
| FM over Dixon Branch | Good | 71.9 ft | 50 | 1989 |
| Local over Middle Raccon River | Good | 78.1 ft | 50 | 2001 |
| Robin AVE over Creek | Good | 78.1 ft | 45 | 2005 |
| Local over Brushy Fork Creek | Good | 125.0 ft | 45 | 1971 |
| Local over Brushy Fork Creek | Good | 77.1 ft | 45 | 1976 |
| Local over Field Stream | Good | 24.0 ft | 45 | 1996 |
| Local over Storm Creek | Good | 103.0 ft | 45 | 1997 |
| Local over Field Stream | Good | 30.8 ft | 45 | 1990 |
| Local over Brushy Creek | Good | 32.2 ft | 45 | 1986 |
| Local over Small Creek | Good | 32.2 ft | 40 | 1983 |
| Local over Brushy Fork Creek | Good | 24.9 ft | 40 | 1996 |
| FM over Field Stream | Good | 78.1 ft | 34 | 2006 |
| E46 240th ST over West Nishnabotna River | Good | 73.5 ft | 34 | 2016 |
| FM over West Nishnabotna River | Good | 75.1 ft | 34 | 2008 |
| Local over Middle Raccoon River | Good | 100.1 ft | 34 | 1973 |
| FM over Field Stream | Good | 90.9 ft | 34 | 2006 |
| Local over Brushy Fork Creek | Good | 32.2 ft | 34 | 1976 |
| Willow AVE over Field Stream | Good | 73.2 ft | 29 | 2014 |
| Local over Brushy Fork Creek | Good | 160.1 ft | 29 | 1994 |
| Local over Field Stream | Good | 38.1 ft | 29 | 2002 |
| 320th ST over Field Stream | Good | 73.2 ft | 29 | 2020 |
| FM over Field Stream | Good | 78.1 ft | 29 | 2003 |
| Phoenix AVE over Willey Branch | Good | 83.0 ft | 29 | 2012 |
| Local over Field Stream | Good | 103.0 ft | 29 | 2003 |
| 220th ST over Field Stream | Good | 33.1 ft | 29 | 2000 |
| FM over Middle Racoon River | Good | 78.1 ft | 29 | 2002 |
| Local over Calamus Creek | Good | 32.2 ft | 26 | 1986 |
| FM over Willow Creek | Good | 43.0 ft | 26 | 2004 |
| FM over Purgatory Creek | Good | 69.9 ft | 26 | 1983 |
| FM over Purgatory Creek | Good | 100.1 ft | 26 | 1972 |
| 120th Street over Purgatory Creek | Good | 73.2 ft | 26 | 2011 |
| Local over Field Stream | Good | 32.2 ft | 20 | 1995 |
| 295th ST over Middle Raccoon River | Good | 153.5 ft | 20 | 2012 |
| Local over Spring Branch | Good | 75.1 ft | 20 | 1996 |
| Phoenix AVE over Storm Creek | Good | 83.0 ft | 20 | 2023 |
| FM over Middle Racoon River | Good | 21.0 ft | 20 | 1971 |
| Local over Field Stream | Good | 38.4 ft | 15 | 2010 |
| 240th ST over Willow Creek | Good | 103.0 ft | 15 | 2016 |
| Local over Willey Branch | Good | 67.9 ft | 15 | 1996 |
| Local over Middle Raccoon River | Good | 79.1 ft | 15 | 1973 |
| Local over Elk Run Creek | Good | 78.1 ft | 15 | 1969 |
| Local over West Nishnabotna River | Good | 78.1 ft | 11 | 1963 |
| Local over Field Stream | Good | 39.0 ft | 11 | 2004 |
| Local over Brushy Fork Creek | Good | 101.7 ft | 11 | 1994 |
| Local over Field Stream | Good | 43.6 ft | 11 | 1997 |
| Local over Field Stream | Good | 24.0 ft | 11 | 1990 |