| US 59 over Johnson Run Creek | 1960 | 8,100 | Fair |
| US 71 over Stream | 1972 | 3,450 | Fair |
| US 71 over Stream | 1972 | 3,410 | Fair |
| US 71 & Ia 2 over West Nodaway River | 1972 | 3,360 | Fair |
| Ia 2 over Snake Creek | 1991 | 3,170 | Good |
| US 71 over Drainage Ditch | 1973 | 3,000 | Fair |
| US 71 over Stream | 1924 | 3,000 | Fair |
| Ia 48 over Four Mile Creek | 1995 | 2,960 | Fair |
| Ia 2 over East Tarkio River | 1991 | 2,790 | Good |
| Ia 2 over Middle Tarkio River | 1992 | 2,790 | Good |
| Ia 2 over East Nodaway River | 1975 | 2,680 | Fair |
| Ia 2 over West Tarkio River | 1991 | 2,650 | Good |
| Ia 48 over Fishbaugh Ditch | 1969 | 2,430 | Good |
| Ia 48 over Rocky Branch | 1969 | 2,380 | Fair |
| US 71 over Stream | 1972 | 2,170 | Good |
| East Washington St over W Nodaway River | 2018 | 2,091 | Good |
| US 71 over Stream | 1972 | 2,090 | Fair |
| US 59 over Stream | 1930 | 1,810 | Fair |
| Ia 48 over Ramp Creek | 1987 | 1,780 | Fair |
| Southwest Rd over Johnsons Run | 2024 | 1,414 | Good |
| N 16TH St over Drainage | 1900 | 1,073 | Poor |
| J 20 140TH Street over West Tarkio River | 2021 | 837 | Good |
| M-63 / O Ave over Snake Creek | 1962 | 837 | Poor |
| 140TH Street over Middle Tarkio River | 1987 | 687 | Fair |
| J-20/140th St over East Tarkio River | 2005 | 687 | Good |
| M-70/redwood over Neely Branch | 1962 | 678 | Poor |
| O Avenue over East Tarkio River | 1993 | 668 | Fair |
| J-20/137th St over West Nodaway River | 1942 | 499 | Good |
| D Avenue over Nishnabotna River | 1949 | 477 | Poor |
| J-20/140th St over Unnamed Stream | 1964 | 450 | Poor |
| 280TH Street over Middle Mill Creek | 1988 | 399 | Fair |
| Argus Rd over Four Mile Creek | 1950 | 392 | Poor |
| 310TH Street over Mid Tarkio Creek | 1968 | 329 | Poor |
| 310TH Street over West Tarkio Creek | 1968 | 329 | Poor |
| J 52 (270TH St) over Long Branch | 2012 | 319 | Good |
| 310TH Street over Middle Mill Creek | 1980 | 309 | Fair |
| 310TH Street over West Mill Creek | 1979 | 309 | Poor |
| 270TH Street over Tarkio River | 1977 | 303 | Fair |
| 270TH Street over West Tarkio Creek | 1979 | 300 | Fair |
| N Avenue over West Mill Creek | 2001 | 289 | Good |
| N 14 (v Ave) over Stream | 2012 | 270 | Good |
| 320TH Street over Nodaway River | 2005 | 255 | Good |
| J53 265TH St over West Nodaway River | 2017 | 223 | Good |
| 310TH Street over Tarkio River | 1968 | 210 | Fair |
| M-60 / M Ave over Stream | 1962 | 210 | Fair |
| Hackberry Ave over Long Branch | 1975 | 199 | Fair |
| Hackberry Ave over Tarkio River | 1975 | 199 | Fair |
| M-41 / E Ave over Unamed Creek | 2004 | 199 | Good |
| J-28/170th St over Jones Creek | 1992 | 190 | Good |
| J-31/185th St over East Nodaway River | 1960 | 190 | Poor |
| Rose Avenue over No Business Creek | 1900 | 170 | Poor |
| 280TH Street over East Nodaway River | 2002 | 150 | Good |
| J40 B Ave over Fisher Creek | 2017 | 150 | Good |
| 150TH Street over East Nishnabotna River | 2023 | 142 | Good |
| J 32 190TH Street over Middle Tarkio Creek | 2024 | 142 | Good |
| Hackberry Ave over Stream | 1975 | 141 | Fair |
| J-28 / 170TH St over West Tarkio River | 1952 | 120 | Poor |
| A Avenue over Nishnabotna River | 2020 | 110 | Good |
| A Avenue over Stream | 1980 | 110 | Poor |
| N Avenue over Snake Creek | 1986 | 110 | Fair |
| J-35 / 210 St over East Nodaway River | 1993 | 100 | Good |
| C Avenue over Four Mile Creek | 1989 | 89 | Good |
| Teak Avenue over Buchanan Creek | 1979 | 89 | Fair |
| 190TH Street over Small Stream | 1963 | 79 | Poor |
| 290TH Street over West Mill Creek | 1957 | 79 | Fair |
| 190TH Street over West Tarkio Creek | 1958 | 71 | Poor |
| 216TH Street over Snake Creek | 1961 | 71 | Poor |
| J53 280TH Street over Buchanan Creek | 2023 | 71 | Good |
| M-32 / C Ave over Stream | 1952 | 71 | Poor |
| Willow Avenue over Stream | 1954 | 71 | Fair |
| 110TH Street over East Tarkio River | 1977 | 60 | Fair |
| 110TH Street over Middle Tarkio River | 1949 | 60 | Poor |
| 260TH Street over Buchanan Creek | 1959 | 60 | Fair |
| 260TH Street over East Nodaway River | 1985 | 60 | Fair |
| B Avenue over Fourmile Creek | 1988 | 60 | Good |
| C Avenue over West Tarkio River | 1957 | 60 | Poor |
| D Avenue over Stream | 2007 | 60 | Good |
| D Avenue over Stream | 1987 | 60 | Good |
| J Avenue over West Tarkio River | 1960 | 60 | Poor |
| J-28 / 170TH St over Tarkio Creek | 1956 | 60 | Poor |
| L Avenue over Snake Creek | 1979 | 60 | Poor |
| 190TH Street over East Tarkio Creek | 1972 | 50 | Fair |
| F Avenue over Stream | 1951 | 50 | Poor |
| J14 102ND St over Stream | 2016 | 50 | Good |
| T Avenue over Stream | 1976 | 50 | Poor |
| V Avenue over Buchanan Creek | 1975 | 50 | Fair |
| West Main St over Stream | 2019 | 47 | Good |
| 120TH Street over Stream | 1990 | 45 | Fair |
| 160TH Street over E Tarkio River | 1986 | 45 | Fair |
| 170TH Street over Neely Branch | 1957 | 45 | Fair |
| 270TH Street over Middle Mill Creek | 1987 | 45 | Fair |
| Sycamore Ave over Stream | 1961 | 45 | Poor |
| North St over Mid Tarkio Creek | 1955 | 43 | Fair |
| Fremont Ave over Fisher Creek | 1985 | 41 | Fair |
| 160TH Street over Neely Branch | 1983 | 40 | Fair |
| 290TH Street over Middle Tarkio River | 2002 | 40 | Good |
| 290TH Street over West Tarkio Creek | 1984 | 40 | Fair |
| F Avenue over Stream | 1987 | 40 | Good |
| Local Rd over West Tarkio Creek | 1978 | 40 | Fair |
| Oak Avenue over East Mill Creek | 1988 | 40 | Fair |
| T Avenue over Stream | 1990 | 40 | Good |
| V Avenue over Stream | 1959 | 40 | Fair |
| V Avenue over Stream | 1982 | 40 | Fair |
| 160TH Street over Stream | 1988 | 34 | Fair |
| 230TH Street over Tarkio River | 1948 | 34 | Fair |
| 230TH Street over West Tarkio River | 1993 | 34 | Good |
| 240TH Street over Buchanan Creek | 1986 | 34 | Poor |
| 280TH Street over West Mill Creek | 1940 | 34 | Poor |
| 290TH Street over Middle Mill Creek | 1988 | 34 | Fair |
| 300TH Street over Stream | 1962 | 34 | Fair |
| F Avenue over Stream | 1986 | 34 | Fair |
| Ironwood Ave over Buck Creek | 1982 | 34 | Fair |
| L Avenue over East Tarkio River | 1958 | 34 | Fair |
| 110TH Street over Nishnabotna River | 1980 | 29 | Fair |
| 160TH Street over Middle Tarkio River | 1987 | 29 | Good |
| 160TH Street over W Tarkio River | 2002 | 29 | Fair |
| 255TH Street over Long Branch | 1963 | 29 | Fair |
| 290TH Street over Buchanan Creek | 1981 | 29 | Fair |
| 290TH Street over Long Branch | 1984 | 29 | Fair |
| 305TH Street over Stream | 1990 | 29 | Fair |
| 320TH Street over Tarkio River | 2001 | 29 | Good |
| B Avenue over Stream | 1990 | 29 | Fair |
| K Avenue over Buck Creek | 1997 | 29 | Good |
| Nutmeg Avenue over Middle Mill Creek | 1992 | 29 | Fair |
| Oak Avenue over Middle Mill Creek | 1989 | 29 | Fair |
| X Avenue over Stream | 1961 | 29 | Fair |
| 105TH Street over Stream | 2005 | 26 | Good |
| 105TH Street over Stream | 2005 | 26 | Fair |
| 130TH Street over E Tarkio River | 1996 | 26 | Fair |
| 150TH Street over East Tarkio River | 1984 | 26 | Fair |
| 150TH Street over Stream | 1941 | 26 | Poor |
| 160TH Street over Stream | 1961 | 26 | Fair |
| 170TH Street over East Tarkio Creek | 1956 | 26 | Fair |
| 180TH Street over W Tarkio River | 1985 | 26 | Fair |
| 230TH Street over Stream | 1986 | 26 | Fair |
| 270TH Street over West Mill Creek | 1957 | 26 | Fair |
| B Avenue over West Tarkio Creek | 1995 | 26 | Fair |
| G Avenue over Stream | 1997 | 26 | Good |
| R Avenue over Stream | 1980 | 26 | Poor |
| X Avenue over Buchanan Creek | 1957 | 26 | Fair |
| N 1ST St over Stream | 1984 | 24 | Fair |
| 110TH Street over Stream | 1953 | 20 | Poor |
| 110TH Street over West Tarkio River | 1953 | 20 | Poor |
| 120TH Street over Middle Tarkio River | 2003 | 20 | Good |
| 120TH Street over West Tarkio River | 1979 | 20 | Fair |
| 180TH Street over East Tarkio River | 1984 | 20 | Fair |
| 220TH Street over Snake Creek | 1980 | 20 | Poor |
| 280TH Street over Long Branch | 1997 | 20 | Fair |
| 300TH Street over West Tarkio Creek | 1992 | 20 | Good |
| F Avenue over West Tarkio Creek | 1977 | 20 | Poor |
| G Avenue over W Tarkio River | 1972 | 20 | Poor |
| J 56 290TH St over Middle Tarkio Creek | 2020 | 20 | Good |
| Kiwi Avenue over Buck Creek | 1994 | 20 | Poor |
| M Avenue over Stream | 1996 | 20 | Good |
| Quince Avenue over Stream | 1977 | 20 | Fair |
| S Avenue over Stream | 1984 | 20 | Poor |
| Upland Avenue over Stream | 1994 | 20 | Fair |
| V Avenue over Stream | 1987 | 20 | Fair |
| 150TH Street over West Tarkio River | 1964 | 15 | Poor |
| 255TH Street over West Mill Creek | 1957 | 15 | Fair |
| 260TH Street over Tarkio River | 1960 | 15 | Poor |
| 280TH Street over West Tarkio Creek | 2000 | 15 | Good |
| 302ND Street over West Mill Creek | 1930 | 15 | Poor |
| 320TH Street over Middle Tarkio Creek | 1953 | 15 | Poor |
| J Avenue over Long Branch | 2006 | 15 | Good |
| Lumber Avenue over Stream | 1990 | 15 | Fair |
| Upland Avenue over Stream | 1986 | 15 | Poor |
| 130TH Street over Middle Tarkio River | 1984 | 11 | Fair |
| 180TH Street over Stream | 1953 | 11 | Poor |
| 240TH Street over Stream | 1974 | 11 | Poor |
| 240TH Street over West Mill Creek | 1989 | 11 | Good |
| Ivy Avenue over Long Branch | 1955 | 11 | Poor |
| Kiwi Avenue over Long Branch | 2023 | 11 | Good |
| M Avenue over Stream | 1900 | 11 | Poor |
| Nutmeg Avenue over East Mill Creek | 1989 | 11 | Poor |
| P Avenue over East Mill Creek | 1997 | 11 | Fair |
| Field Ent. over Drainage (sdb) | 1900 | 10 | Poor |
| Field Ent. over Stream (sdb) | 1995 | 10 | Fair |
| Field Entrance over Drainage (sdb) | 1990 | 10 | Poor |
| Field Entrance over Drainage (sdb) | 1900 | 10 | Poor |
| Field Entrance over Drainage (sdb) | 1900 | 10 | Poor |
| Field Entrance over Stream (sdb) | 1900 | 10 | Poor |
| Field Entrance over Stream (sdb) | 1900 | 10 | Poor |
| Fremont/page over Stream | 1977 | 10 | Poor |
| 220TH Street over East Tarkio Creek | 2010 | 5 | Good |
| 230TH Street over South Branch | 1999 | 5 | Fair |
| 300TH Street over Tarkio River | 2006 | 5 | Good |
| K Avenue over Stream | 1999 | 5 | Poor |
| Local over E Tarkio River | 1991 | 5 | Fair |
| M Avenue over Middle Tarkio River | 1951 | 5 | Poor |
| Teak Ave over Stream | 1999 | 5 | Poor |