| Central AVE N over Shellrock River | Poor | 124.0 ft | 1,868 | 1950 |
| 390th over Shellrock River | Poor | 182.1 ft | 363 | 1958 |
| Dogwood over Stream | Poor | 30.8 ft | 236 | 1959 |
| Dogwood over Drainage Ditch | Poor | 30.8 ft | 236 | 1972 |
| Balsam over Beaver Creek | Poor | 36.1 ft | 216 | 1977 |
| Mallard AVE over Drainage Ditch | Poor | 30.8 ft | 216 | 1973 |
| Killdeer over Elk Creek | Poor | 64.0 ft | 137 | 2001 |
| Vine over Deer Creek | Poor | 62.0 ft | 59 | 1977 |
| Olive over Drainage Ditch | Poor | 63.0 ft | 51 | 1974 |
| 390th over Stream | Poor | 30.8 ft | 41 | 1959 |
| 450th over Stream | Poor | 32.2 ft | 34 | 1962 |
| 380th over Stream | Poor | 43.0 ft | 33 | 1964 |
| Spruce over Drainage Ditch | Poor | 30.8 ft | 30 | 1955 |
| 440th over Drainage Ditch | Poor | 26.9 ft | 26 | 1962 |
| Jonquil over Elk Creek | Poor | 54.1 ft | 21 | 1957 |
| 380th over Drainage Ditch | Poor | 30.8 ft | 20 | 1959 |
| 355th over Stream | Poor | 40.0 ft | 11 | 1900 |
| I-35 over Goose Creek | Fair | 28.9 ft | 20,100 | 1972 |
| NB I 35 over Over Up Rr | Fair | 209.0 ft | 10,700 | 1970 |
| SB I 35 over Over Up Rr | Fair | 209.0 ft | 10,500 | 1970 |
| NB I-35 over Elk Creek | Fair | 128.0 ft | 9,950 | 1972 |
| SB I-35 over Elk Creek | Fair | 128.0 ft | 9,750 | 1972 |
| SR 105 over I-35 | Fair | 292.0 ft | 4,419 | 1972 |
| Ia 9 over Stream | Fair | 43.0 ft | 2,360 | 1921 |
| US 65 over Drainage Ditch | Fair | 52.2 ft | 2,200 | 1928 |
| US 65 over Over Up Rr | Fair | 328.1 ft | 2,170 | 1990 |
| Ia 9 over Shell Rock River | Fair | 123.0 ft | 2,160 | 1921 |
| Co RD 105 over Drainage Ditch | Fair | 65.0 ft | 1,836 | 1950 |
| Ia 9 over I-35 | Fair | 291.0 ft | 1,700 | 1970 |
| Co RD 105 over Small Natural Stream | Fair | 40.0 ft | 1,650 | 1949 |
| Co RD 105 over Drainage Ditch | Fair | 35.1 ft | 1,650 | 1949 |
| Co RD 105 over Elk Creek | Fair | 52.2 ft | 1,414 | 1950 |
| Co RD 105 over Drainage Ditch | Fair | 44.0 ft | 1,414 | 1949 |
| Co RD 105 over Drainage Ditch | Fair | 52.2 ft | 1,414 | 1949 |
| Co RD 105 over Small Natural Creek | Fair | 36.1 ft | 1,139 | 1949 |
| Co RD 105 over Elk Creek | Fair | 25.9 ft | 1,139 | 1926 |
| Sy RD A-38 over I-35 | Fair | 292.0 ft | 1,011 | 1971 |
| Co RD 105 over Drainage Ditch | Fair | 86.9 ft | 894 | 1956 |
| S62 Co RD 105 over Drainage Ditch | Fair | 25.9 ft | 619 | 1956 |
| Co RD 105 over Drainage Ditch | Fair | 62.0 ft | 609 | 1956 |
| 4th ST over Shellrock River | Fair | 152.9 ft | 480 | 1986 |
| 410th over Shellrock River | Fair | 179.1 ft | 471 | 1955 |
| Thrush over Stream | Fair | 32.2 ft | 442 | 1963 |
| Thrush over Deer Creek | Fair | 78.1 ft | 393 | 1972 |
| Thrush over Drainage Ditch | Fair | 78.1 ft | 393 | 1971 |
| Thrush over Drainage Ditch | Fair | 24.9 ft | 393 | 1971 |
| Wheelerwood over Stream | Fair | 43.0 ft | 265 | 1961 |
| Wheelerwood over Stream | Fair | 33.1 ft | 265 | 1960 |
| Wheelerwood over Drainage Ditch | Fair | 33.1 ft | 265 | 1960 |
| Bluebill AVE over Elk Creek | Fair | 35.1 ft | 187 | 2001 |
| Dogwood over Beaver Creek | Fair | 27.9 ft | 135 | 2001 |
| 2nd AVE S over Shell Rock River | Fair | 89.9 ft | 123 | 1959 |
| FM RD A-39 over I-35 | Fair | 292.0 ft | 118 | 1970 |
| 495th over Shellrock River | Fair | 127.0 ft | 104 | 1955 |
| 370th over Stream | Fair | 63.0 ft | 73 | 1962 |
| Vine over Stream | Fair | 29.9 ft | 69 | 1968 |
| Vine over Deer Creek | Fair | 48.9 ft | 59 | 1948 |
| A 27 over I-35 | Fair | 293.0 ft | 49 | 1972 |
| 340th over Stream | Fair | 34.1 ft | 47 | 1928 |
| 490th over Deer Creek | Fair | 102.0 ft | 47 | 1971 |
| Nuthatch over Elk Creek | Fair | 58.1 ft | 41 | 1961 |
| A 15 over I-35 | Fair | 292.0 ft | 39 | 1972 |
| Swallow over Shellrock River Trib | Fair | 26.9 ft | 35 | 1917 |
| Nettle over Stream | Fair | 36.1 ft | 35 | 1955 |
| 500th over Deer Creek | Fair | 75.1 ft | 30 | 1974 |
| 355th over Drainage Ditch | Fair | 32.2 ft | 29 | 1900 |
| Dogwood over Stream | Fair | 44.9 ft | 29 | 1961 |
| 367th over Stream | Fair | 30.8 ft | 25 | 1959 |
| 430 TH over Stream | Fair | 33.1 ft | 25 | 1968 |
| 375th over Drainage Ditch | Fair | 41.0 ft | 11 | 1940 |
| 350th over Drainage Ditch | Fair | 33.1 ft | 10 | 1915 |
| King Bird over Goose Creek | Fair | 24.0 ft | 10 | 1916 |
| I-35 over Drainage Ditch | Good | 24.9 ft | 20,600 | 1972 |
| Ia 9 over Beaver Creek | Good | 98.1 ft | 2,360 | 2024 |
| Ia 9 over Stream | Good | 73.2 ft | 2,160 | 1975 |
| US 65 over Elk Creek | Good | 82.0 ft | 2,020 | 1990 |
| US 65 over Shellrock River | Good | 191.9 ft | 2,020 | 1983 |
| Ia 9 over Willow Creek | Good | 94.2 ft | 1,960 | 2004 |
| US 69 over Stream | Good | 33.5 ft | 1,570 | 1989 |
| Ia 9 over Wharam Creek | Good | 33.1 ft | 1,470 | 1994 |
| Ia 9 over Spring Creek | Good | 24.9 ft | 1,470 | 1994 |
| Eagle over Winnebago River | Good | 125.0 ft | 909 | 2004 |
| S56 Thrush AVE over Stream | Good | 25.9 ft | 373 | 2015 |
| Wheelerwood over Stream | Good | 82.0 ft | 285 | 1998 |
| Wheelerwood over Drainage Ditch | Good | 27.9 ft | 265 | 1999 |
| Fir AVE over Drainage Ditch | Good | 45.9 ft | 207 | 2012 |
| 4th ST over Drainage Ditch | Good | 81.4 ft | 187 | 2014 |
| Partridge AVE over Stream | Good | 55.1 ft | 166 | 1978 |
| A39 390th over Stream | Good | 46.9 ft | 118 | 2021 |
| Wheelerwood over Winnebago River | Good | 128.0 ft | 108 | 1992 |
| Mallard AVE over Goose Creek | Good | 33.8 ft | 91 | 2016 |
| Lilac AVE over Elk Creek | Good | 102.0 ft | 82 | 1972 |
| 450th over Shellrock River | Good | 169.0 ft | 79 | 1964 |
| S62 Vine AVE over Drainage Ditch | Good | 22.0 ft | 59 | 2019 |
| 430th over Shellrock River | Good | 169.0 ft | 49 | 1960 |
| 400th over Shellrock River | Good | 182.1 ft | 47 | 1958 |
| Finch over Winnebago River | Good | 179.1 ft | 47 | 1995 |
| Apple over Beaver Creek | Good | 29.9 ft | 41 | 2009 |
| 460th over Deer Creek | Good | 42.0 ft | 41 | 2003 |
| Jonquil AVE over Drainage Ditch | Good | 30.8 ft | 41 | 2013 |
| 380th over Shellrock River | Good | 200.1 ft | 35 | 1962 |
| 342nd ST over Drainage Ditch | Good | 60.0 ft | 35 | 2021 |
| Local over Winnebago River | Good | 103.0 ft | 30 | 1975 |
| 470th over Deer Creek | Good | 127.0 ft | 30 | 1972 |
| Finch over Elk Creek | Good | 24.0 ft | 29 | 2006 |
| 400th over Drainage Ditch | Good | 32.2 ft | 26 | 1915 |
| 415th ST over Drainage Ditch | Good | 25.9 ft | 26 | 2023 |
| FM RD A-34 over I-35 | Good | 292.0 ft | 25 | 1970 |
| Juniper AVE over Stream | Good | 29.9 ft | 20 | 2003 |
| Olive AVE over Drainage Ditch | Good | 30.8 ft | 16 | 2017 |
| Mallard AVE over Drainage Ditch | Good | 33.1 ft | 15 | 2023 |
| Cardinal over Beaver Creek | Good | 40.0 ft | 15 | 2005 |
| 350th Street over Drainage Ditch | Good | 24.9 ft | 10 | 2021 |
| 380th over Stream | Good | 35.1 ft | 5 | 1990 |
| Yarrow AVE over Stream | Good | 28.9 ft | 5 | 2017 |
| 480th over Stream | Good | 56.1 ft | 5 | 2006 |