| US 218 over Stream | 1984 | 14,900 | Fair |
| US 218 over Whiskey Run Creek | 1984 | 14,900 | Fair |
| US 218 over Drainage | 1997 | 13,800 | Good |
| US 218 over Big Slough Creek | 1997 | 12,400 | Good |
| SB US 218 over Davis Creek | 1984 | 7,600 | Fair |
| SB US 218 over Goose Creek | 1984 | 7,600 | Fair |
| US 218 SB over English River | 1984 | 7,600 | Fair |
| NB US 218 over Davis Creek | 1994 | 7,450 | Good |
| NB US 218 over English River | 1994 | 7,450 | Good |
| NB US 218 over Goose Creek | 1994 | 7,450 | Good |
| SB US 218 over Ia 22 | 1984 | 7,050 | Fair |
| US 218 NB over Ia 22 | 1995 | 6,900 | Good |
| US 218 SB over E Fork Crooked Creek | 2014 | 6,500 | Fair |
| NB US 218 over E. Fork Crooked Creek | 1997 | 6,400 | Good |
| Ia 22 over Drainage Ditch | 1988 | 6,200 | Good |
| Ia 22 over Salvesen Creek | 2017 | 6,200 | Good |
| Ia 92 over South Long Creek | 1967 | 5,900 | Fair |
| US 218 SB over S. Fork Long Creek | 1997 | 5,750 | Fair |
| NB US 218 over S Fk Long Creek | 1997 | 5,650 | Good |
| US 218 SB over Cp RR | 1996 | 5,600 | Fair |
| NB US 218 over Cp RR | 1996 | 5,500 | Fair |
| US 218 SB over N. Fork Long Creek | 1997 | 5,500 | Good |
| NB US 218 over N Fk Long Creek | 1997 | 5,400 | Good |
| Ia 22 over Iowa River Overflow | 1987 | 4,250 | Fair |
| SB US 218 over Ia 92 | 1996 | 4,250 | Good |
| NB US 218 over Ia 92 | 1996 | 4,150 | Good |
| Ia 1 over Camp Creek | 2019 | 4,120 | Good |
| Ia 1 over English River | 1979 | 4,120 | Fair |
| Ia 1 over Long Creek | 1987 | 4,100 | Good |
| Ia 92 over North Fork Long Creek | 2001 | 3,700 | Good |
| FM over S. Fork Long Creek | 1996 | 3,520 | Good |
| FM over N.fork Long Creek | 1985 | 3,370 | Good |
| FM over Small Stream | 1966 | 3,370 | Fair |
| Ia 22 over Drainage Ditch | 1994 | 3,330 | Fair |
| Ia 22 over English River | 1994 | 3,330 | Good |
| Ia 22 over English River Overflow | 1994 | 3,330 | Fair |
| Ia 22 over Ramsey Creek | 1994 | 3,330 | Fair |
| Ia 22 over Smith Creek | 1990 | 3,330 | Fair |
| Ia 22 over Bulgers Run | 2021 | 3,090 | Good |
| Ia 1 over West Fork Crooked Creek | 2016 | 2,600 | Good |
| Ia 92 over W Branch Crooked Creek | 2011 | 2,430 | Good |
| Ia 1 over Cedar Creek | 1987 | 2,340 | Good |
| Ia 1 over Skunk River & Access Rd | 2015 | 2,340 | Good |
| Ia 1 over Walnut Creek | 2006 | 2,340 | Fair |
| FM over South Fork Long Creek | 1979 | 2,280 | Fair |
| Co Rd G36 over US 218 | 2008 | 2,010 | Fair |
| Ia 92 over Drainage Ditch | 1968 | 1,810 | Fair |
| Ia 92 over Dutch Creek | 1923 | 1,810 | Fair |
| FM over Crooked Creek | 1940 | 1,720 | Fair |
| W55 Wayland Rd over W Fork Crooked Creek | 2002 | 1,720 | Good |
| FM over Williams Creek | 1936 | 1,650 | Poor |
| Ia 1 & Ia 78 over Honey Creek | 1991 | 1,520 | Good |
| FM over English River | 1999 | 1,460 | Good |
| FM over English River | 1999 | 1,400 | Good |
| Co Rd W64 over English River | 2006 | 1,230 | Good |
| W64 Vine Ave over Small Natural Stream | 2015 | 1,230 | Good |
| FM over Burr Oak Creek | 1991 | 1,100 | Fair |
| G 38 over W Fork Crooked Creek | 2011 | 970 | Good |
| B Ave over Small Stream | 1936 | 938 | Poor |
| 9TH Avenue over Smith Creek | 1928 | 920 | Poor |
| FM over Dutch Creek | 1956 | 890 | Fair |
| Co Rd W64 over Davis Creek | 2004 | 790 | Good |
| W38 Ginko Ave over Drainage Ditch | 2010 | 770 | Good |
| FM over W Fork Crooked CR | 1998 | 750 | Good |
| FM over W. Fork Crooked Creek | 2003 | 660 | Good |
| FM over Small Stream | 2009 | 640 | Good |
| G26 190TH St over Small Stream | 2015 | 640 | Good |
| FM over S. Fork Long Creek | 1992 | 590 | Good |
| FM over Small Stream | 1953 | 540 | Fair |
| G 26 (190TH St) over Unnamed Creek | 2014 | 540 | Good |
| Co Rd W64 over Goose Creek | 2004 | 520 | Good |
| Co Rd W64 over Whiskey Run Creek | 2006 | 520 | Good |
| FM over Davis Creek | 1953 | 520 | Fair |
| FM over East Fork Crooked Creek | 1990 | 490 | Good |
| FM over N. Fork Long Creek | 1961 | 440 | Poor |
| W38 Ginko Ave over Crooked Creek | 2000 | 430 | Good |
| 2ND St over Flint Creek | 2008 | 389 | Good |
| FM over Williams Creek | 1980 | 380 | Fair |
| W62 Redwood Ave over Small Stream | 2013 | 380 | Good |
| FM over Crooked Creek | 1987 | 270 | Fair |
| FM over English River | 1998 | 270 | Good |
| FM over Small Stream | 1925 | 270 | Poor |
| FM over Clemons Creek | 1990 | 260 | Fair |
| G38 over Dutch Creek | 2016 | 250 | Good |
| A Ave over Small Creek | 2011 | 234 | Good |
| C Ave over Small Stream | 1998 | 234 | Good |
| FM over N. Fork Long Creek | 1970 | 230 | Fair |
| Co Rd W64 over Big Slough Creek | 1982 | 220 | Fair |
| Co Rd W64 over Drainage Ditch | 1982 | 210 | Fair |
| Local over Small Creek | 1977 | 200 | Good |
| Hickory Ave over Smith Creek | 2011 | 190 | Good |
| FM over Sm Stream | 1974 | 180 | Fair |
| Local over Camp Creek | 1954 | 161 | Fair |
| Local over South Fork Long Creek | 2009 | 161 | Good |
| FM over N. Fork Long Creek | 1925 | 160 | Poor |
| 130TH Street over Smith Creek | 2021 | 150 | Good |
| FM over Richland CR | 1972 | 150 | Fair |
| Co Rd W64 over Long Creek | 1929 | 140 | Poor |
| Local Road over Small Stream | 1966 | 140 | Fair |
| Local over Camp CR | 1974 | 140 | Fair |
| Local over Sm Stream | 1973 | 140 | Fair |
| Local Road over South Fork Long Creek | 1965 | 131 | Fair |
| Orange Avenue over Small Stream | 2019 | 131 | Good |
| Underwood Ave over N Fork Long CR | 1953 | 131 | Poor |
| FM over Camp CR | 1974 | 122 | Fair |
| 155TH St over Lime Creek | 2013 | 120 | Good |
| Elm Ave over Creek | 2005 | 120 | Good |
| FM over Camp Creek | 1968 | 120 | Fair |
| FM over Cedar Creek | 1962 | 120 | Fair |
| FM over Skunk River | 1957 | 120 | Poor |
| Local over Smith Creek | 1930 | 110 | Poor |
| Local over South Fork Long Creek | 1991 | 110 | Good |
| 110TH St over Small Stream | 2006 | 100 | Good |
| FM over North Fork Long Creek | 1969 | 100 | Fair |
| Kiwi Ave over Clemons Creek | 1971 | 100 | Fair |
| Larch Ave over Cedar Creek | 1953 | 100 | Fair |
| Local Road over Burr Oak Creek | 1968 | 100 | Fair |
| Local Road over Camp Creek | 1991 | 100 | Good |
| Poplar Blvd over Small Stream | 2006 | 100 | Good |
| FM over Davis Creek | 1962 | 90 | Fair |
| FM over Indian Creek | 1997 | 90 | Good |
| 130TH Street over Lime Creek | 2020 | 80 | Good |
| FM over Davis Creek | 1994 | 80 | Fair |
| Local Road over Small Stream | 1966 | 80 | Poor |
| Local Road over Small Stream | 2007 | 80 | Good |
| Local over East Fork Crooked Creek | 2004 | 80 | Good |
| FM over Dutch Creek | 1997 | 72 | Good |
| Local Road over Davis Creek | 1956 | 71 | Fair |
| Local Road over Small Stream | 1988 | 71 | Fair |
| Local Road over Whiskey Creek | 1969 | 71 | Poor |
| Local over S. Fork Long Creek | 1953 | 71 | Poor |
| FM over Davis Creek | 1980 | 70 | Fair |
| FM over Smith Creek | 1952 | 70 | Fair |
| FM over Clemons Creek | 1956 | 60 | Fair |
| FM over Goose Creek | 1983 | 60 | Fair |
| FM over Indian Creek | 1968 | 60 | Fair |
| FM over Lime Creek | 1964 | 60 | Fair |
| FM over West Fork Crooked Creek | 1978 | 60 | Fair |
| Local Road over Deer Creek | 1966 | 60 | Fair |
| Local Road over Small Stream | 1950 | 60 | Fair |
| Local Road over Small Stream | 1966 | 60 | Fair |
| Local Road over Small Stream | 1928 | 60 | Poor |
| Local over N Fork Long CR | 1973 | 60 | Poor |
| Local over Whiskey Creek | 1917 | 60 | Poor |
| 1ST St over Long Creek | 2013 | 58 | Good |
| FM over Deer Creek | 1953 | 50 | Poor |
| FM over Honey Creek | 1969 | 50 | Fair |
| FM over Small Stream | 1917 | 50 | Poor |
| FM over South English River | 1993 | 50 | Fair |
| Local Road over Cedar Creek | 1999 | 50 | Fair |
| Local Road over East Walnut Creek | 1968 | 50 | Fair |
| Local Road over South Fork Long Creek | 1966 | 50 | Fair |
| Local Road over West Fork Crooked Creek | 2008 | 50 | Fair |
| Local over Small Stream | 1987 | 50 | Fair |
| Local over Smith Creek | 1989 | 50 | Good |
| FM over Dutch Creek | 1956 | 45 | Poor |
| FM over Dutch Creek | 1997 | 45 | Good |
| FM over Small Stream | 1927 | 45 | Poor |
| FM over W. Fork Crooked Creek | 1978 | 45 | Fair |
| FM over Walnut Creek | 1955 | 45 | Poor |
| Local over West Fork Crooked Creek | 1956 | 45 | Fair |
| FM over Br English River | 1927 | 40 | Poor |
| Juniper Ave over Small Stream | 2022 | 40 | Good |
| Local Road over Buff Creek | 1997 | 40 | Good |
| Local Road over Small Stream | 1968 | 40 | Fair |
| Local Road over Small Stream | 1970 | 40 | Fair |
| Local Road over Walnut Creek | 1962 | 40 | Fair |
| Local over Crooked Creek | 1987 | 40 | Fair |
| Local over North Fork Long Creek | 1995 | 40 | Good |
| Local over Sm Stream | 1974 | 40 | Poor |
| Local over Williams CR | 1972 | 40 | Fair |
| Washington Ave over Camp Creek | 2018 | 40 | Good |
| 297TH Place over Buff Creek | 1955 | 34 | Fair |
| Birch Ave over Smith Creek | 2020 | 34 | Good |
| Local over Small Stream | 1969 | 34 | Fair |
| 275TH St over Dutch Creek | 2018 | 30 | Good |
| Local Road over Small Creek | 1990 | 30 | Good |
| Local Road over Small Creek | 1964 | 30 | Fair |
| Local Road over South Fork Long Creek | 1967 | 30 | Fair |
| Local over Williams CR | 1972 | 30 | Fair |
| FM over Goose Creek | 1966 | 26 | Fair |
| Local Road over Clemons Creek | 1969 | 26 | Fair |
| Local Road over Small Stream | 1927 | 26 | Poor |
| Local Road over West Fork Crooked Creek | 1949 | 26 | Poor |
| Local over Goose Creek | 1988 | 26 | Good |
| Local over Goose Creek | 1975 | 26 | Poor |
| Local over Small Stream | 1987 | 26 | Fair |
| Local over Small Stream | 1965 | 26 | Fair |
| Local Road over Clemons Creek | 1991 | 20 | Fair |
| Local Road over Whiskey Creek | 1929 | 20 | Poor |
| Yucca Ave over Buff Creek | 1995 | 20 | Good |
| Local Road over Small Stream | 1975 | 15 | Fair |
| Local over Davis Creek | 1963 | 15 | Fair |
| Local over Goose Creek | 1990 | 15 | Good |
| Local over Sm Stream | 1992 | 15 | Fair |
| Local over Small Stream | 1967 | 15 | Fair |
| Local Road over Camp Creek | 2007 | 11 | Fair |
| Local Road over Small Stream | 2004 | 11 | Good |
| Local Road over Small Stream | 1917 | 11 | Poor |
| Local Road over Small Stream | 2001 | 11 | Good |
| Local Road over South Fork Long Creek | 1914 | 11 | Poor |
| Local over Davis Creek | 1980 | 11 | Poor |
| Local over Sm Stream | 1934 | 11 | Poor |
| 135TH over Side Ditch Bridge | 1993 | 10 | Good |
| FM over Sm Stream | 1928 | 10 | Poor |
| Local over North Fork Long Creek | 1929 | 5 | Poor |
| Lk Darling St Pk over Honey Creek | 1929 | – | Fair |