| W Bluff ST over Railroad Creek | Poor | 36.1 ft | 3,529 | 1961 |
| Fm-530th ST over W Fork Little Sioux | Poor | 49.9 ft | 898 | 1968 |
| Main ST over Aurelia Creek | Poor | 35.1 ft | 841 | 1939 |
| Union ST over Railroad Creek | Poor | 43.0 ft | 803 | 1900 |
| Euclid AVE over Railroad Creek | Poor | 34.1 ft | 699 | 1900 |
| FM J AVE over Bear Creek | Poor | 33.1 ft | 538 | 1940 |
| E. Maple ST over Railroad Creek | Poor | 34.1 ft | 472 | 1900 |
| Fm- Y AVE over Little Maple River | Poor | 78.1 ft | 439 | 1971 |
| Fm-l Ave. over Small Creek | Poor | 21.0 ft | 429 | 1900 |
| E. Willow ST over Railroad Creek | Poor | 43.0 ft | 377 | 1900 |
| M21 W AVE over Branch Maple River | Poor | 77.1 ft | 369 | 1970 |
| FM 450th ST over Grey Creek | Poor | 77.1 ft | 319 | 1970 |
| Fm-h Ave. over Willow Creek | Poor | 25.9 ft | 199 | 1924 |
| Local-keeln Rd. over Badger Creek | Poor | 35.1 ft | 170 | 1917 |
| Fm-480th St. over Little Sioux River | Poor | 346.1 ft | 60 | 1965 |
| Local-g Ave. over Small Creek | Poor | 34.1 ft | 50 | 1924 |
| FM 570th ST over Gere Creek | Poor | 57.1 ft | 50 | 1951 |
| FM 590th St. over Rock Creek | Poor | 77.1 ft | 45 | 1970 |
| Local 470th ST over Grey Creek | Poor | 53.1 ft | 45 | 1920 |
| Local 460th ST over Bear Creek | Poor | 29.9 ft | 45 | 1916 |
| Local F AVE over Four Mile Creek | Poor | 29.9 ft | 45 | 1924 |
| Local-490th ST over Maple River | Poor | 54.1 ft | 40 | 1900 |
| Local 470th ST over Creek | Poor | 27.9 ft | 40 | 1924 |
| Local-v Ave. over Maple River | Poor | 82.0 ft | 34 | 1957 |
| Local-520th St. over Fiddle Creek | Poor | 25.9 ft | 34 | 1924 |
| Local- F AVE over Small Creek | Poor | 27.9 ft | 30 | 1919 |
| 590th ST over Maple River | Poor | 67.9 ft | 30 | 1919 |
| Local- 630th ST over Maple River | Poor | 141.1 ft | 26 | 1900 |
| Local 540th St. over Perry Creek | Poor | 28.9 ft | 26 | 1982 |
| Local-v Ave. over Small Creek | Poor | 27.9 ft | 26 | 1917 |
| Local-520th ST over Willow CR | Poor | 77.1 ft | 26 | 1973 |
| Fm-f Ave. over W Fork Little Sioux Rvr | Poor | 35.1 ft | 26 | 1924 |
| Local 440th ST over Creek | Poor | 34.1 ft | 26 | 1923 |
| Local- 600th ST over Rock Creek | Poor | 52.2 ft | 20 | 1900 |
| Local-630th ST over N Pierson Creek | Poor | 27.9 ft | 20 | 1920 |
| M25 Y AVE over Pitcher Creek | Poor | 28.9 ft | 20 | 1921 |
| Local M Ave. over Br Perry Creek | Poor | 42.0 ft | 20 | 1928 |
| Local 560th St. over Rock Creek | Poor | 54.1 ft | 20 | 1946 |
| Local 540th ST over West Fork Little Sioux | Poor | 42.0 ft | 20 | 1925 |
| Local 560th ST over Fiddle Creek | Poor | 35.1 ft | 20 | 1915 |
| Local B Ave. over Fiddle Creek | Poor | 43.0 ft | 20 | 1915 |
| Local-500th ST over Br Maple River | Poor | 27.9 ft | 20 | 1919 |
| Local 430th ST over Creek | Poor | 33.1 ft | 20 | 1936 |
| Local G AVE over Four Mile Creek | Poor | 25.9 ft | 20 | 1976 |
| Local- U AVE over Pitcher CR | Poor | 34.1 ft | 15 | 1926 |
| Local-u AVE over Overflow Channel | Poor | 25.9 ft | 15 | 1925 |
| Local- S AVE over Creek | Poor | 25.9 ft | 15 | 1916 |
| Local- 630th ST over Willow Creek | Poor | 34.1 ft | 15 | 1917 |
| Local 580th ST over Small Creek | Poor | 24.9 ft | 15 | 1900 |
| Lcl Sleep H. RD over Creek | Poor | 20.0 ft | 15 | 1971 |
| Local 460th ST over Grey Creek | Poor | 47.9 ft | 15 | 1927 |
| Local L AVE over Mill Creek | Poor | 103.0 ft | 15 | 1917 |
| Local 440th ST over Creek | Poor | 34.1 ft | 15 | 1900 |
| Local- 600th ST over Maple River | Poor | 67.9 ft | 11 | 1921 |
| Local 570th ST over Maple River | Poor | 67.9 ft | 11 | 1918 |
| Local W Ave. over Pitcher Creek | Poor | 35.1 ft | 11 | 1923 |
| Local 570th St. over Perry Creek | Poor | 69.9 ft | 11 | 1948 |
| Local 540th ST over Small Creek | Poor | 28.9 ft | 11 | 1919 |
| Local B Ave. over West Fork Little Sioux | Poor | 53.1 ft | 11 | 1916 |
| 440th ST over Creek | Poor | 26.9 ft | 11 | 1931 |
| Lcl Mrt.acc.rd over Stream | Poor | 29.9 ft | 11 | 1917 |
| Local 460th ST over Sioux River | Poor | 23.0 ft | 11 | 1931 |
| 570th ST over Pitcher 153 | Poor | 22.0 ft | 11 | 1900 |
| U AVE over Maple Creek | Poor | 60.0 ft | 5 | 1976 |
| FM 590th St. over Pitcher Creek | Poor | 33.1 ft | 5 | 1924 |
| Local 580th St. over Rock Creek | Poor | 43.0 ft | 5 | 1917 |
| Local580th ST over Fiddle Creek | Poor | 47.9 ft | 5 | 1917 |
| 510th ST over West Fork Little Sioux | Poor | 29.9 ft | 5 | 1917 |
| US 59 over Railroad Creek | Fair | 39.0 ft | 7,200 | 1973 |
| US 59 over Westcott Pk Loop | Fair | 78.1 ft | 4,510 | 1972 |
| US 59 over Little Sioux River | Fair | 396.0 ft | 4,510 | 1973 |
| Ia 3 over Fork Little Sioux River | Fair | 103.0 ft | 3,410 | 1979 |
| Ia 3 over Maple River | Fair | 123.0 ft | 3,270 | 1985 |
| Ia 3 over Little Sioux River | Fair | 324.1 ft | 3,230 | 1960 |
| US 59 over Coonley Creek | Fair | 36.1 ft | 2,900 | 1972 |
| US 59 over Cn Rr | Fair | 256.9 ft | 2,900 | 1972 |
| Main Street over Railroad Creek | Fair | 55.1 ft | 2,279 | 1949 |
| Ia 3 over Stream | Fair | 21.0 ft | 2,140 | 1930 |
| US 59 over Silver Creek | Fair | 38.1 ft | 2,090 | 1972 |
| US 59 over Mill Creek | Fair | 485.9 ft | 2,070 | 1985 |
| US 59 over Grey Creek Overflow | Fair | 65.9 ft | 1,720 | 1986 |
| US 59 over Grey Creek | Fair | 92.8 ft | 1,720 | 1986 |
| US 59 over Grey Creek | Fair | 83.0 ft | 1,720 | 1986 |
| C38/old 977 over Little Sioux River | Fair | 506.9 ft | 1,547 | 1982 |
| Ia 143 over Stream | Fair | 24.9 ft | 1,490 | 1957 |
| Ia 31 over Stream | Fair | 24.9 ft | 1,350 | 1949 |
| Ia 31 over Stratton Creek | Fair | 44.0 ft | 1,330 | 1922 |
| Fm- L AVE over Little Sioux River | Fair | 372.0 ft | 1,257 | 1984 |
| Ia 31 over Stream | Fair | 29.9 ft | 1,180 | 1949 |
| Ia 31 over Silver Creek | Fair | 21.0 ft | 1,180 | 1949 |
| Ia 31 over Silver Creek | Fair | 153.9 ft | 1,180 | 1950 |
| Fm- 610th ST over Maple River | Fair | 164.0 ft | 1,017 | 1995 |
| Fm- 610th ST over Overflow Channel | Fair | 26.9 ft | 1,017 | 1970 |
| Fm- 610th ST over Pitcher Creek | Fair | 26.9 ft | 1,017 | 1970 |
| Fm- L AVE over Branch Little Sioux | Fair | 25.9 ft | 977 | 1965 |
| Fm-530th St. over Rock Creek | Fair | 24.9 ft | 938 | 1968 |
| Fm-530th St. over Willow Creek | Fair | 37.1 ft | 898 | 1968 |
| FM River Rd. over Perry Creek | Fair | 89.9 ft | 748 | 1973 |
| FM - D AVE over N Pierson Creek | Fair | 49.9 ft | 679 | 1961 |
| E. Cedar ST over Railroad Creek | Fair | 42.0 ft | 565 | 1941 |
| Birch ST over Goat Creek | Fair | 33.1 ft | 501 | 1900 |
| FM 450th ST over Little Sioux River | Fair | 425.9 ft | 419 | 1988 |
| FM - 650th ST over Buffalo Creek | Fair | 24.9 ft | 350 | 1973 |
| FM - 650th ST over N Oierson Creek | Fair | 49.9 ft | 350 | 1974 |
| FM 580th St. over Little Sioux River | Fair | 415.0 ft | 350 | 1981 |
| 450th ST over Branch Bear Creek | Fair | 23.0 ft | 330 | 1962 |
| FM 450th ST over Bear Creek | Fair | 77.1 ft | 319 | 1966 |
| Fm- 650th ST over Maple River | Fair | 182.1 ft | 290 | 1961 |
| Fm- W AVE over Little Maple River | Fair | 78.1 ft | 290 | 1971 |
| Fm- L AVE over Branch Little Sioux Rvr | Fair | 24.9 ft | 290 | 1971 |
| Fm- 610th ST over Rock Creek | Fair | 49.9 ft | 259 | 1976 |
| FM L AVE over Bear Creek | Fair | 82.0 ft | 219 | 1979 |
| FM 580th ST over Perry Creek | Fair | 89.9 ft | 199 | 1979 |
| Fm- 650th ST over Stratton Creek | Fair | 25.9 ft | 180 | 1967 |
| Fm- 650th ST over Stratton | Fair | 24.9 ft | 180 | 1967 |
| East Main St. over Stratton Creek | Fair | 24.9 ft | 173 | 1967 |
| FM U AVE over Branch Little Sioux | Fair | 27.9 ft | 131 | 1966 |
| FM Barnes RD over Small | Fair | 33.1 ft | 120 | 1979 |
| FM 570th ST over Willow Creek | Fair | 57.1 ft | 100 | 1979 |
| Local-b Ave. over Stream | Fair | 44.0 ft | 100 | 1941 |
| Local 470th ST over W Fk Little Sioux River | Fair | 41.0 ft | 100 | 1986 |
| Local 470th ST over Mill Creek | Fair | 208.0 ft | 71 | 1974 |
| Fm- V AVE over Small Stream | Fair | 21.0 ft | 60 | 1973 |
| Local 550th St. over Perry Creek | Fair | 44.9 ft | 60 | 1956 |
| Local-c Ave. over Branch Fiddle Creek | Fair | 24.9 ft | 50 | 1981 |
| Local- M AVE over Creek | Fair | 66.9 ft | 45 | 1900 |
| Local- W AVE over Little Maple River | Fair | 77.1 ft | 40 | 1963 |
| Local G Ave. over Willow Creek | Fair | 56.1 ft | 40 | 1985 |
| Local-i Ave. over Small Stream | Fair | 24.9 ft | 40 | 1973 |
| Fm- T AVE over Branch Maple River | Fair | 41.0 ft | 34 | 1985 |
| Locl Middle RD over Mill Creek | Fair | 204.1 ft | 30 | 1964 |
| Local 420th ST over Creek | Fair | 44.9 ft | 30 | 1966 |
| Local K AVE over Bear Creek | Fair | 27.9 ft | 30 | 1927 |
| Local E AVE over Small Stream | Fair | 56.1 ft | 30 | 1985 |
| Local- N AVE over Branch Little Sioux | Fair | 26.9 ft | 26 | 1937 |
| Local- 640th ST over Silver Creek | Fair | 68.9 ft | 26 | 1982 |
| Local- C AVE over Buffalo Creek | Fair | 43.0 ft | 26 | 1945 |
| 580th ST over Willow Creek | Fair | 49.9 ft | 26 | 2015 |
| FM 590th St. over Willow Creek | Fair | 69.9 ft | 26 | 1964 |
| Local-500th ST over Small Creek | Fair | 32.2 ft | 26 | 1925 |
| Fm-simonsen RD over Rock Creek | Fair | 128.9 ft | 20 | 1975 |
| Local - A AVE over Small Creek | Fair | 26.9 ft | 20 | 1900 |
| Local over Perry Creek | Fair | 103.0 ft | 20 | 2007 |
| Local 560th St. over Willow Creek | Fair | 43.0 ft | 20 | 1989 |
| Local C Ave. over West Fork Little Sioux | Fair | 102.0 ft | 20 | 1977 |
| Local-y Ave. over Br Maple River | Fair | 57.1 ft | 20 | 1982 |
| Local M AVE over Creek | Fair | 24.9 ft | 20 | 1970 |
| Local 430th ST over Creek | Fair | 102.0 ft | 20 | 1975 |
| Local-620th ST over Small Creek | Fair | 26.9 ft | 15 | 1932 |
| 550th ST over Fiddle Creek | Fair | 83.0 ft | 15 | 1954 |
| Local 580th St. over West Fork Little Sioux | Fair | 68.9 ft | 15 | 1961 |
| Local-490th St. over Maple River | Fair | 77.1 ft | 15 | 1975 |
| 600th ST over Willow Creek | Fair | 85.0 ft | 11 | 1937 |
| Local- K AVE over Creek | Fair | 22.0 ft | 11 | 2002 |
| N AVE over Perry Creek | Fair | 35.1 ft | 11 | 2002 |
| Local-k Ave. over Small Creek | Fair | 27.9 ft | 11 | 1926 |
| Local 430th ST over Creek | Fair | 28.9 ft | 5 | 1926 |
| Cemetary Access over Stream | Fair | 24.9 ft | 0 | 1900 |
| US 59 over Grey Creek | Good | 271.0 ft | 2,070 | 1985 |
| US 59 over Grey Creek | Good | 133.9 ft | 2,070 | 1985 |
| Ia 7 over Maple Creek | Good | 169.9 ft | 2,020 | 1989 |
| US 59 over Grey Creek | Good | 123.0 ft | 1,720 | 1986 |
| Ia 31 over Four Mile Creek | Good | 28.9 ft | 1,350 | 2015 |
| Main ST over Little Sioux River | Good | 418.0 ft | 1,112 | 2013 |
| River RD over Goat Creek | Good | 32.8 ft | 1,023 | 2014 |
| Fm- 610th ST over Branch Silver Creek | Good | 29.9 ft | 1,017 | 1995 |
| E. Cherry ST over Railroad Creek | Good | 40.0 ft | 942 | 1977 |
| FM over Little Sioux Rvr W Fork | Good | 109.9 ft | 838 | 2008 |
| Fm-530th St. over Fiddle Creek | Good | 38.1 ft | 778 | 1985 |
| FM River Rd. over Branch Little Sioux Rvr | Good | 37.1 ft | 748 | 2008 |
| C43 550th ST over Maple River | Good | 191.9 ft | 619 | 2002 |
| FM C-16/450th over Creek | Good | 21.0 ft | 518 | 2002 |
| L48 J AVE over Bear Creek | Good | 38.1 ft | 489 | 2017 |
| F AVE over W Fork Little Sioux | Good | 38.1 ft | 399 | 2002 |
| M 21 (v Ave) over Pitcher Creek | Good | 92.8 ft | 390 | 2012 |
| FM M21 over Small Stream | Good | 21.0 ft | 390 | 1974 |
| M21 V AVE over Creek | Good | 21.0 ft | 390 | 1993 |
| FM 450th ST over Creek | Good | 24.0 ft | 319 | 1997 |
| C16 450th ST over Mill Creek | Good | 274.0 ft | 319 | 2019 |
| C66 650th ST over Silver Creek | Good | 111.9 ft | 240 | 2017 |
| Fm- 510th ST over Willow Creek | Good | 141.1 ft | 240 | 1998 |
| 480th ST over Creek | Good | 40.0 ft | 219 | 2005 |
| L40 H AVE over Willow Creek | Good | 92.8 ft | 199 | 2015 |
| M21 W AVE over Branch Maple River | Good | 50.9 ft | 190 | 2019 |
| Fm-w Ave. over Maple River | Good | 103.0 ft | 190 | 2005 |
| C 66 (650th St) over Stratton Creek | Good | 24.9 ft | 180 | 2012 |
| Fm- V AVE over Branch Pitcher Creek | Good | 21.0 ft | 170 | 1993 |
| 520th ST over Badger Creek | Good | 44.0 ft | 170 | 1987 |
| C44 570th ST over Fiddle Creek | Good | 102.0 ft | 139 | 2017 |
| C44 570th ST over W Fork Little Sioux | Good | 111.9 ft | 139 | 2017 |
| C44 570th ST over Rock Creek | Good | 101.0 ft | 120 | 2019 |
| Old 21 Road over Mill Creek | Good | 246.1 ft | 120 | 2006 |
| FM Barnes RD over Stream | Good | 24.9 ft | 120 | 1989 |
| C25 480th over Branch Maple River | Good | 42.0 ft | 90 | 2015 |
| Local-e Ave. over West Fork Little Sioux | Good | 91.9 ft | 90 | 1998 |
| Fm- Washta RD over Willow Creek | Good | 128.0 ft | 71 | 2003 |
| Local-510th St. over Railroad Creek | Good | 69.9 ft | 71 | 2009 |
| Local-480th ST over West Fork Little Sioux | Good | 50.9 ft | 71 | 2002 |
| C AVE over Fiddle Creek | Good | 24.0 ft | 71 | 2023 |
| Local 540th St. over Small Stream | Good | 24.9 ft | 60 | 1987 |
| 540th ST over Rock Creek(intersection) | Good | 54.1 ft | 60 | 1987 |
| V Avenue over Pitcher Creek | Good | 21.0 ft | 60 | 2022 |
| 500th ST over Badger Creel | Good | 28.9 ft | 60 | 2022 |
| Fm-high Ctry.rd over Mill Creek | Good | 216.9 ft | 50 | 1991 |
| Local-s Ave. over Badger Creek | Good | 33.1 ft | 45 | 1985 |
| FM 560th ST over Maple River | Good | 191.9 ft | 40 | 2009 |
| Local-510th St. over Drainage Ditch | Good | 32.2 ft | 40 | 2001 |
| FM F AVE over N Fork Little Sioux | Good | 30.8 ft | 40 | 2001 |
| P AVE over Silver Creek | Good | 128.0 ft | 34 | 2006 |
| Local-480th St. over Creek | Good | 29.9 ft | 34 | 1999 |
| Local- 600th ST over Silver Creek | Good | 128.0 ft | 30 | 1992 |
| Local-640th ST over Small Creek | Good | 29.9 ft | 30 | 2005 |
| U AVE over Small Creek | Good | 29.9 ft | 30 | 2015 |
| 590th ST over Maple River | Good | 121.1 ft | 30 | 2024 |
| A AVE over West Fork Little Sioux | Good | 152.9 ft | 30 | 2014 |
| Local-510th ST over Willow Creek | Good | 48.9 ft | 30 | 1999 |
| R Avenue over Unnamed Stream | Good | 26.9 ft | 30 | 2006 |
| 470th ST over Beak Creek | Good | 20.0 ft | 30 | 2018 |
| Local-640th ST over Pierson Creek | Good | 104.0 ft | 26 | 1996 |
| Local Y AVE over Maple River | Good | 128.0 ft | 26 | 2001 |
| Local 560th St. over Small Creek | Good | 29.9 ft | 26 | 2001 |
| Local 560th ST over West Fork Little Sioux | Good | 128.0 ft | 26 | 1985 |
| Local-510th ST over Maple Creek | Good | 43.0 ft | 26 | 2010 |
| Local-520th ST over Maple River | Good | 73.2 ft | 26 | 2012 |
| Local Y AVE over Stream | Good | 78.1 ft | 26 | 2007 |
| 440th ST over Creek | Good | 26.9 ft | 26 | 2003 |
| B Avenue over Drainage | Good | 29.9 ft | 26 | 1998 |
| 630th ST over Silver Creek | Good | 130.9 ft | 20 | 2022 |
| Local C Ave. over Small Creek | Good | 30.8 ft | 20 | 1998 |
| Local-510th ST over Small Creek | Good | 43.0 ft | 20 | 2010 |
| Local 420th ST over Creek | Good | 29.9 ft | 20 | 1997 |
| Local 430th ST over Creek | Good | 27.9 ft | 20 | 1998 |
| 470th ST over W Fork Little Sioux Rive | Good | 39.0 ft | 20 | 2022 |
| 630th ST over Creek | Good | 38.1 ft | 15 | 2005 |
| 620th ST over Willow Creek | Good | 101.0 ft | 15 | 2022 |
| Local 560th St. over Perry Creek | Good | 30.8 ft | 15 | 2001 |
| FM J Ave. over Rock Creek | Good | 60.0 ft | 15 | 2011 |
| Local-480th St. over Creek | Good | 28.9 ft | 15 | 1999 |
| 500th ST over Ditch | Good | 24.9 ft | 15 | 2014 |
| Local-520th St. over W Fork Little Sioux | Good | 45.9 ft | 15 | 2010 |
| Local-600th ST over Pitcher Creek | Good | 78.1 ft | 11 | 1996 |
| Local- 600th ST over Willow Creek | Good | 29.9 ft | 11 | 1997 |
| Local 470th ST over Creek | Good | 29.9 ft | 11 | 2000 |
| 590th ST over Overflow | Good | 24.9 ft | 5 | 2003 |