| FM over Raccoon River | Poor | 115.2 ft | 1,228 | 1976 |
| FM over Sm Stream | Poor | 34.1 ft | 569 | 1974 |
| FM over Little Maple River | Poor | 34.1 ft | 569 | 1974 |
| FM over Brooks Creek | Poor | 32.2 ft | 509 | 1966 |
| FM over Dd 34 Lat #2 | Poor | 26.9 ft | 489 | 1979 |
| FM over Creek | Poor | 78.1 ft | 469 | 1970 |
| FM over Maple River | Poor | 77.1 ft | 450 | 1964 |
| FM over Small | Poor | 79.1 ft | 390 | 1978 |
| FM over Creek | Poor | 69.9 ft | 339 | 1964 |
| FM over Creek | Poor | 34.1 ft | 249 | 1976 |
| FM over Branch Little Sioux Rvr | Poor | 128.0 ft | 120 | 1967 |
| Local over Drainage Ditch | Poor | 35.1 ft | 100 | 1971 |
| FM over Brooks Creek | Poor | 76.1 ft | 100 | 1974 |
| FM over Prairie Creek D D #1 | Poor | 24.9 ft | 90 | 1978 |
| FM over Stream | Poor | 30.8 ft | 60 | 1973 |
| Local over Creek | Poor | 25.9 ft | 50 | 1969 |
| Local over Drainage Ditch | Poor | 25.9 ft | 50 | 1977 |
| Local over Creek | Poor | 25.9 ft | 45 | 1976 |
| Local over Branch Raccoon River | Poor | 26.9 ft | 45 | 1970 |
| Local over Br Raccoon River | Poor | 25.9 ft | 45 | 1976 |
| Local over Br Raccoon River | Poor | 23.0 ft | 40 | 1917 |
| Local over Raccoon River | Poor | 49.9 ft | 34 | 1933 |
| Local over D D #106 | Poor | 25.9 ft | 34 | 1978 |
| Local over Drainage Ditch | Poor | 25.9 ft | 34 | 1971 |
| Local over Boyer Creek | Poor | 32.2 ft | 30 | 1978 |
| Local over Drainage Ditch | Poor | 25.9 ft | 30 | 1971 |
| Local over Br Raccoon River | Poor | 33.1 ft | 30 | 1977 |
| Local over Branch Of Maple | Poor | 78.1 ft | 30 | 1978 |
| Local over Br Raccoon River | Poor | 24.0 ft | 30 | 1930 |
| Local over Brooks Creek | Poor | 23.0 ft | 30 | 1918 |
| Local over Br Raccoon River | Poor | 32.2 ft | 30 | 1971 |
| Local over Br Little Sioux River | Poor | 25.9 ft | 30 | 1971 |
| Local over Drainage Ditch | Poor | 30.8 ft | 30 | 1973 |
| Local over Raccoon River | Poor | 60.0 ft | 26 | 1914 |
| FM over Br Little Sioux River | Poor | 25.9 ft | 26 | 1960 |
| Local over Stream | Poor | 25.9 ft | 20 | 1975 |
| Local over Br Raccoon River | Poor | 46.9 ft | 20 | 1923 |
| Local over Br Raccoon River | Poor | 29.9 ft | 20 | 1925 |
| Local over Br Raccoon River | Poor | 25.9 ft | 20 | 1971 |
| 520th ST over Br Raccoon River | Poor | 24.0 ft | 20 | 1931 |
| Local over Raccoon River | Poor | 56.1 ft | 20 | 1977 |
| Local over Br Raccoon River | Poor | 24.0 ft | 20 | 1920 |
| Local over Br Little Sioux River | Poor | 26.9 ft | 20 | 1922 |
| Local over Stream | Poor | 24.0 ft | 20 | 1973 |
| Local over Br Raccoon River | Poor | 25.9 ft | 15 | 1972 |
| Local over Creek | Poor | 25.9 ft | 15 | 1972 |
| Local over Maple River | Poor | 52.2 ft | 15 | 1914 |
| Local over Br Raccoon River | Poor | 33.1 ft | 15 | 1977 |
| Local over Stream | Poor | 24.0 ft | 15 | 1915 |
| Local over Br Raccoon River | Poor | 23.0 ft | 11 | 1928 |
| Local over Brooks Creek | Poor | 34.1 ft | 11 | 1924 |
| Local over Stream | Poor | 27.9 ft | 11 | 1900 |
| Local over Br Little Sioux River | Poor | 29.9 ft | 11 | 1921 |
| Local over Stream | Poor | 24.9 ft | 5 | 1973 |
| Ia 7 over Powell Creek | Fair | 40.0 ft | 4,720 | 1992 |
| US 71 & Ia 10 over Little Sioux River | Fair | 354.0 ft | 4,570 | 1973 |
| US 71 over Drainage Ditch #34 | Fair | 37.1 ft | 3,830 | 1985 |
| US 71 over Branch Raccoon River | Fair | 21.0 ft | 3,000 | 1996 |
| Ia 7 over Stream | Fair | 21.0 ft | 2,530 | 1936 |
| Ia 7 over Drainage Ditch | Fair | 21.0 ft | 2,050 | 1937 |
| Ia 7 over Drainage Ditch | Fair | 22.0 ft | 2,050 | 1937 |
| Ia 7 over Drainage Ditch | Fair | 25.9 ft | 2,050 | 1937 |
| Ia 7 over Drainage Ditch | Fair | 24.9 ft | 2,050 | 1937 |
| Ia 3 over Maple Creek | Fair | 127.0 ft | 1,650 | 1957 |
| Ia 3 over Stream | Fair | 102.0 ft | 1,470 | 1957 |
| 550th ST over Small Stream | Fair | 21.0 ft | 878 | 1937 |
| FM over Little Maple River | Fair | 20.0 ft | 848 | 1974 |
| Ia 10 over Drainage Ditch | Fair | 21.0 ft | 810 | 1990 |
| Ia 10 over N.raccoon River | Fair | 25.9 ft | 810 | 1990 |
| FM over Maple Creek | Fair | 87.9 ft | 729 | 1988 |
| FM over Sm Stream | Fair | 20.0 ft | 688 | 1974 |
| FM over Stream | Fair | 78.1 ft | 559 | 1996 |
| FM over Dd#34 Raccoon River | Fair | 26.9 ft | 549 | 1983 |
| FM over Creek | Fair | 112.9 ft | 469 | 1989 |
| FM over Sm Stream | Fair | 20.0 ft | 469 | 1974 |
| FM over Branch Raccoon River | Fair | 90.9 ft | 450 | 1998 |
| 580th ST over Powell Creek | Fair | 30.8 ft | 429 | 1972 |
| Local over Br Maple River | Fair | 76.1 ft | 71 | 1973 |
| Local over Drainage Ditch | Fair | 25.9 ft | 60 | 1975 |
| Local over Powell Creek | Fair | 38.1 ft | 50 | 1977 |
| Local over Raccoon River | Fair | 216.9 ft | 45 | 1987 |
| FM over Stream | Fair | 20.0 ft | 45 | 1973 |
| Local over Powell Creek | Fair | 24.0 ft | 40 | 1972 |
| Local over Brooks Creek | Fair | 32.2 ft | 40 | 1978 |
| Local over Boyer Creek | Fair | 22.0 ft | 34 | 1977 |
| FM over Brooks Creek | Fair | 30.8 ft | 34 | 1977 |
| Local over Soldier Creek | Fair | 24.9 ft | 34 | 1977 |
| Local over Drainage Ditch | Fair | 32.2 ft | 30 | 1996 |
| Local over Br Raccoon River | Fair | 32.2 ft | 30 | 1970 |
| Local over Raccoon River | Fair | 32.2 ft | 26 | 1973 |
| Local over Boyer River | Fair | 32.2 ft | 26 | 1996 |
| Local over Maple River | Fair | 47.9 ft | 26 | 1984 |
| Local over Br Raccoon River | Fair | 44.0 ft | 26 | 1970 |
| Local over Creek | Fair | 32.2 ft | 20 | 1973 |
| Local over Maple Creek | Fair | 21.0 ft | 20 | 1984 |
| Local over D D #34 (raccoon) | Fair | 102.0 ft | 15 | 1978 |
| Local over Boyer Creek | Fair | 22.0 ft | 15 | 1993 |
| Local over Br Raccoon River | Fair | 32.2 ft | 11 | 1969 |
| Local over Brooks Creek | Fair | 33.1 ft | 11 | 1924 |
| Local over Maple Creek | Fair | 44.0 ft | 11 | 1965 |
| 10th AVE over Little Maple River | Fair | 70.9 ft | 11 | 1984 |
| Ia 110 over Storm Lake Inlet | Good | 54.1 ft | 4,890 | 1978 |
| US 71 over Drainage Ditch #34 | Good | 37.1 ft | 3,830 | 1985 |
| US 71 over Stream | Good | 21.0 ft | 3,000 | 1996 |
| M44 105th AVE over Poor Farm Creek | Good | 24.9 ft | 2,414 | 2017 |
| Ia 7 over North Raccoon River | Good | 159.1 ft | 2,050 | 2002 |
| Ia 3 over Brook Creek | Good | 109.9 ft | 1,930 | 2010 |
| Ia 3 over North Raccoon River | Good | 152.9 ft | 1,460 | 2018 |
| Ia 3 over Drainage Ditch | Good | 28.5 ft | 1,460 | 2021 |
| Ia 7 over Prarie Creek Dd | Good | 83.0 ft | 1,230 | 2000 |
| C49 590th ST over Drainage Ditch 101 | Good | 24.9 ft | 1,097 | 2018 |
| M 50 160th AVE over Outlet Creek | Good | 32.8 ft | 509 | 2017 |
| FM over Small Stream | Good | 23.0 ft | 450 | 1999 |
| M36 80th AVE over Bluebird Creek | Good | 35.1 ft | 430 | 2023 |
| FM over Creek | Good | 25.9 ft | 300 | 2001 |
| C25 (480th St) over Creek | Good | 92.8 ft | 270 | 2014 |
| M50 160th AVE over Unnamed Creek | Good | 24.0 ft | 249 | 2022 |
| M50 160th AVE over Creek | Good | 69.9 ft | 249 | 2016 |
| C43 555th ST over Branch Raccoon River | Good | 141.1 ft | 100 | 2016 |
| 70th AVE over Stream | Good | 20.0 ft | 100 | 2022 |
| C25 (480th St) over Branch Of Maple | Good | 33.1 ft | 90 | 2014 |
| Local over Br Little Sioux River | Good | 79.1 ft | 80 | 2001 |
| Local over Br Raccoon River | Good | 28.9 ft | 80 | 1998 |
| Local over Raccoon River | Good | 175.9 ft | 71 | 1992 |
| Bluff ST over Stream | Good | 30.8 ft | 65 | 2006 |
| Local over Drainage Ditch | Good | 26.9 ft | 60 | 2005 |
| FM over Raccoon River D.d.#34 | Good | 103.0 ft | 60 | 1986 |
| 240th AVE over Drainage Ditch | Good | 73.2 ft | 50 | 2013 |
| FM over Raccoon River | Good | 128.0 ft | 50 | 1997 |
| 650th ST over Drainage Ditch Dist 1 | Good | 83.0 ft | 45 | 2013 |
| Local over Br Raccoon River | Good | 90.9 ft | 45 | 2005 |
| FM over Branch Little Sioux Rvr | Good | 128.0 ft | 45 | 1996 |
| 430th ST over Local Stream | Good | 25.9 ft | 45 | 2012 |
| FM over Racoon River | Good | 179.1 ft | 40 | 2010 |
| 180th AVE over Br Raccoon River | Good | 73.2 ft | 40 | 2012 |
| 140th AVE over Creek | Good | 33.1 ft | 40 | 2017 |
| Local over Racoon River | Good | 128.0 ft | 34 | 2006 |
| 30th AVE over Br Maple River | Good | 32.2 ft | 30 | 2005 |
| Local over Maple River | Good | 45.9 ft | 30 | 2005 |
| Local over Branch Raccoon River | Good | 26.9 ft | 30 | 2004 |
| Local over Racoon River | Good | 116.1 ft | 30 | 2004 |
| Local over Br Maple Creek | Good | 26.9 ft | 30 | 2004 |
| Local over Br Maple Creek | Good | 103.0 ft | 30 | 1997 |
| 540th ST over Brooks Creek | Good | 35.1 ft | 30 | 2015 |
| Local over Drainage Ditch | Good | 73.2 ft | 26 | 2007 |
| Local over Outlet Creek | Good | 53.1 ft | 26 | 2009 |
| Local over Br Raccoon River | Good | 32.2 ft | 26 | 1998 |
| 510th ST over Maple Creek | Good | 36.1 ft | 26 | 2014 |
| FM over Boyer Creek | Good | 25.9 ft | 20 | 1998 |
| Local RD 540th over Creek | Good | 24.0 ft | 20 | 2002 |
| Local over Maple Creek | Good | 37.1 ft | 15 | 2004 |
| Local over Drainage Ditch | Good | 30.8 ft | 15 | 2000 |
| 500th ST over Raccoon River | Good | 92.8 ft | 15 | 2011 |
| Local over Br Racoon River | Good | 47.9 ft | 15 | 2010 |
| Local over Small Stream | Good | 30.8 ft | 15 | 2009 |
| 220th AVE over Drainagedistrictditch 1 | Good | 24.9 ft | 11 | 2013 |
| Local over Br Little Sioux River | Good | 90.9 ft | 5 | 2001 |