| Ia 4 (N Elm St) over UP RR & Mckinley St | 2012 | 6,200 | Good |
| US 30 over UP RR & 222ND | 2017 | 4,970 | Good |
| US 30 over West Beaver Creek | 2017 | 4,970 | Good |
| US 30 over Little Beaver Creek | 2009 | 4,570 | Good |
| US 30 over Buttrick Creek | 1957 | 4,230 | Fair |
| US 30 over Hardin Creek | 1957 | 4,230 | Fair |
| US 30 over Stream | 1956 | 3,700 | Fair |
| US 30 over North Raccoon River | 2010 | 3,270 | Good |
| Ia 4 over Hardin Creek | 1978 | 2,710 | Fair |
| Ia 4 over North Raccoon River | 1983 | 2,210 | Fair |
| Ia 4 over Drainage Ditch #110 | 1993 | 1,950 | Good |
| Ia 4 over Drainage Ditch #110 | 1978 | 1,950 | Good |
| Ia 144 over Snake Creek | 1987 | 1,690 | Good |
| Ia 4 over Greenbrier Creek | 1993 | 1,620 | Good |
| S Grimmell Rd over Raccoon River | 1947 | 1,572 | Poor |
| Ia 25 over UP RR | 1987 | 1,220 | Good |
| E53 over Buttricks Creek | 1958 | 1,196 | Good |
| 235 Th / E53 over Hardin Creek | 1993 | 1,047 | Fair |
| Ia 25 over Drainage Ditch #117 | 2006 | 970 | Good |
| E53 237TH St over Raccoon River | 1912 | 916 | Fair |
| E 18 130TH St over East Buttrick Creek | 1994 | 874 | Good |
| Ia 144 over Devils Fork | 2017 | 680 | Good |
| Ia 144 over East Buttrick Creek | 2023 | 600 | Good |
| E18 over Small Stream | 1985 | 597 | Fair |
| Ia 144 over East Buttrick Creek | 2022 | 590 | Good |
| Ia 4 over Hardin Creek | 1990 | 530 | Good |
| 130 Th over Drainage Ditch #110 | 1996 | 528 | Fair |
| E18 130TH St over West Buttricks Creek | 2018 | 528 | Good |
| S Ave / P33 over Buttricks Creek | 1971 | 399 | Fair |
| 330 Th / E63 over Drainage Ditch 9-13 | 1970 | 379 | Poor |
| 330 Th / E63 over Willow Creek | 1970 | 379 | Fair |
| N 65 D Ave over Raccoon River | 2017 | 379 | Good |
| A Ave / N58 over Willow Creek | 1964 | 358 | Fair |
| D Ave / N65 over Cedar Creek | 1955 | 338 | Fair |
| A Ave / N58 over Drainage Ditch 9-13 | 2005 | 329 | Good |
| W Ave / P46 over West Beaver Creek | 1924 | 329 | Fair |
| E39 210TH St over Drainage Ditch 150-86 | 2017 | 303 | Good |
| 222ND St over West Beaver Creek | 1921 | 300 | Poor |
| A Ave over Dd 150-86 | 1964 | 293 | Poor |
| 190 Th / E33 over Hardin Creek | 1961 | 270 | Fair |
| 170 Th / E26 over Drainage Ditch 110 | 1963 | 229 | Poor |
| 170 Th / E26 over West Buttricks Creek | 1963 | 229 | Fair |
| Quest AVE/P30 over Deadbrier Creek | 1969 | 210 | Fair |
| 190 Th / E33 over Drainage Ditch 430 | 1959 | 199 | Fair |
| 330 Th / E63 over Mosquito Creek | 1978 | 199 | Fair |
| Eaton Ave / E33 over Raccoon River | 1993 | 199 | Fair |
| J Ave / P14 over Raccoon River | 1952 | 199 | Fair |
| 330 Th / E63 over Greenbriar Creek | 1977 | 190 | Fair |
| J Ave / P14 over Greenbrier Creek | 1971 | 190 | Poor |
| Quaker / P30 over Buttricks Creek | 1977 | 190 | Fair |
| R Ave / P30 over Raccoon River | 1975 | 190 | Fair |
| R Ave / P30 over Small Stream | 1973 | 190 | Fair |
| 195 Th over West Buttricks Creek | 1970 | 180 | Fair |
| 170 Th / E26 over East Buttricks Creek | 1935 | 170 | Fair |
| 305 Th / E57 over Raccoon River | 1940 | 170 | Fair |
| J Ave / P14 over Creek | 1972 | 139 | Fair |
| A Ave / N58 over Creek | 1984 | 131 | Fair |
| A Ave / N58 over Raccoon River | 1950 | 131 | Poor |
| E57 290TH St over Greenbrier Creek | 2017 | 131 | Good |
| 110 Th / E13 over Cedar Creek | 1959 | 110 | Fair |
| 290 Th / E57 over Snake Creek | 1959 | 108 | Poor |
| 110 Th over Hardin Creek | 1978 | 100 | Fair |
| V Ave over Stream | 1988 | 100 | Fair |
| 290 Th / E57 over Willow Creek | 1953 | 89 | Poor |
| Neola Ave over Hardin Creek | 1986 | 82 | Good |
| Orchard Ave over Hardin Creek | 1983 | 79 | Good |
| 210 Th over Hardin Creek | 2002 | 72 | Good |
| 210 Th over Stream | 2002 | 72 | Good |
| 150 Th over Cedar Creek | 1949 | 62 | Fair |
| 222 Nd over Hardin Creek | 1987 | 62 | Good |
| M Ave over Stream | 1971 | 62 | Fair |
| X Ave over West Beaver Creek | 1976 | 62 | Fair |
| Parkland Ave over Hardin Creek | 1979 | 60 | Fair |
| 140 Th over Cedar Creek | 1990 | 51 | Good |
| 205 Th over Stream | 1937 | 51 | Fair |
| 205 Th/imperial over Stream | 1958 | 51 | Fair |
| 215 Th over Stream | 2005 | 51 | Good |
| M Ave over Stream | 1958 | 51 | Fair |
| 190 Th over Hardin Creek | 1983 | 50 | Good |
| 283 Rd over Raccoon River | 1937 | 50 | Fair |
| 195 Th over Small | 1989 | 46 | Fair |
| 210TH St over West Beaver Creek | 2003 | 46 | Good |
| 215 Th over Raccoon River | 1949 | 46 | Fair |
| 230 Th over Stream | 1957 | 46 | Poor |
| 100 Th over Small | 1978 | 45 | Fair |
| 250 Th over Buttricks Creek | 1957 | 45 | Fair |
| 270 Th over Greenbrier Creek | 1983 | 45 | Fair |
| 280TH St over Snake Creek | 2024 | 42 | Good |
| 150 Th over East Buttricks Creek | 1987 | 41 | Good |
| H Ave over Stream | 2003 | 41 | Good |
| W Ave over Snake Creek | 1982 | 41 | Good |
| 270TH Street over Unnamed Stream | 2004 | 40 | Good |
| 337 Th over Bowers Run | 1995 | 40 | Fair |
| 100TH St over East Buttrick Creek | 1919 | 35 | Fair |
| 200 Th over Creek | 1956 | 35 | Poor |
| 255 Th over Hardin Creek | 1981 | 35 | Good |
| E Ave over Stream | 2002 | 35 | Good |
| Kirkwood Ave over Hardin Creek | 1948 | 35 | Fair |
| W Ave over Snake Creek | 1983 | 35 | Good |
| W Ave over Snake Creek | 1984 | 35 | Good |
| W Ave over Snake Creek | 1984 | 35 | Fair |
| 130 Th over Stream | 2002 | 30 | Good |
| 185 Th over Otter Creek | 1992 | 30 | Fair |
| 190 Th over East Buttericks Creek | 1994 | 30 | Good |
| 190 Th over Stream | 1991 | 30 | Fair |
| 210 Th over Stream | 1926 | 30 | Fair |
| 280 Th over Stream | 1947 | 30 | Fair |
| 310 Th over Greenbrier Creek | 1989 | 30 | Good |
| I Ave over Short Creek | 2006 | 30 | Good |
| V Ave over W Beaver Creek | 1988 | 30 | Fair |
| X Ave over Little Beaver Creek | 1924 | 30 | Poor |
| 175 Th over Raccoon River | 1942 | 29 | Fair |
| L Ave / P16 over Hardin Creek | 1979 | 29 | Good |
| 120 Th over Stream | 1957 | 26 | Poor |
| 140 Th over Stream | 1956 | 26 | Poor |
| 150 Th over Stream | 1965 | 26 | Fair |
| 180 Th over Dd #102 | 1978 | 26 | Poor |
| 180 Th over Stream | 1958 | 26 | Poor |
| 240 Th over Buttricks Creek | 1957 | 26 | Poor |
| 243 Rd over Hardin Creek | 2009 | 26 | Good |
| 270 Th over Stream | 1973 | 26 | Fair |
| 310TH St over Deadbrier Creek | 1998 | 26 | Fair |
| 330 Th over Stream | 1921 | 26 | Fair |
| 337TH St over Snake Creek | 1978 | 26 | Good |
| A Ave over Small Stream | 1979 | 26 | Fair |
| Brentwood over Willow Creek | 1980 | 26 | Fair |
| H Ave over Dd 102 | 1977 | 26 | Poor |
| Hillcrest Ave over Stream | 1994 | 26 | Fair |
| L Ave / P18 over Greenbrier Creek | 1991 | 26 | Fair |
| S Ave over Stream | 1953 | 26 | Fair |
| 100 Th over Lost Grove Creek | 1914 | 21 | Poor |
| 130 Th over Hardin Creek | 1988 | 21 | Good |
| 150 Th over Devils Fork | 1979 | 21 | Good |
| 150 Th over West Buttricks Creek | 1989 | 21 | Good |
| 160 Th over Buttricks Creek | 2003 | 21 | Good |
| 160 Th over East Buttricks Creek | 2001 | 21 | Good |
| 200 Th over Stream | 1965 | 21 | Poor |
| 310 Th over Stream | 1966 | 21 | Fair |
| K Ave over Hardin Creek | 1959 | 21 | Poor |
| W Ave over Creek | 1900 | 21 | Poor |
| 100 Th over Cedar Creek | 1979 | 20 | Fair |
| 100 Th over Hardin Creek | 1982 | 20 | Fair |
| 160 Th / E26 over Hardin Creek | 1980 | 20 | Good |
| 200 Th over East Buttricks Creek | 1990 | 20 | Good |
| 100 Th over Buttricks Creek | 1977 | 15 | Fair |
| 100 Th over Stream | 1920 | 15 | Fair |
| 110 Th over East Buttricks Creek | 1983 | 15 | Fair |
| 120 Th over Buttricks Creek | 1979 | 15 | Good |
| 120 Th over Stream | 1967 | 15 | Fair |
| 120 Th over West Buttricks Creek | 1978 | 15 | Good |
| 140 Th over Drainage Ditch | 1935 | 15 | Fair |
| 150 Th over Hardin Creek | 1994 | 15 | Good |
| 170 Th over Stream | 1972 | 15 | Fair |
| 300 Th over Greenbrier Creek | 1957 | 15 | Poor |
| K Ave over Greenbrier Creek | 1936 | 15 | Fair |
| Meadow Ave over Small Stream | 1980 | 15 | Fair |
| T Ave over Buttrick Creek | 2001 | 15 | Good |
| 110 Th over Stream | 1961 | 11 | Fair |
| 110 Th over Stream | 1934 | 11 | Fair |
| 140 Th over Stream | 1934 | 11 | Fair |
| 185 Th/farm Dr over Dd #110 | 1925 | 11 | Fair |
| 218 Th over Stream | 1937 | 11 | Fair |
| 320 Th over Stream | 1956 | 11 | Poor |
| H Ave over Green Brier Creek | 2004 | 11 | Good |
| P Ave over Butterick Creek | 1986 | 11 | Good |
| T Ave over Stream | 2002 | 11 | Good |
| Farm Drive over Buttricks Creek | 1900 | 10 | Poor |
| 320 Th over Snake Creek | 1981 | 5 | Fair |