| Is 270 E over Sugar CR | 1962 | 212,715 | Fair |
| Is 270 E over Rp IS270E to IS64W Rp | 1993 | 199,283 | Fair |
| Is 270 E over Cst Conway Rd | 1964 | 182,944 | Poor |
| Is 270 E over Is 44 Rp IS270E to Is | 1962 | 176,520 | Fair |
| Is 64 E over Cst Claytonia Ter | 2008 | 166,599 | Fair |
| Is 64 E over Cst Laclede Station Rd | 2008 | 166,599 | Fair |
| Is 64 E over E Fk Deer CR | 1957 | 166,599 | Fair |
| Is 64 E over Hampton CR | 1957 | 166,599 | Fair |
| Is 270 E over Crd Von Talge Rd BNSF R | 1967 | 162,180 | Fair |
| Is 270 E over Mattese CR | 1967 | 162,180 | Fair |
| Is 70 E over Mo 141 | 1971 | 159,362 | Fair |
| Is 64 E over Metrolink | 2008 | 158,962 | Good |
| Is 55 S over Mattese CR | 1964 | 157,561 | Fair |
| Is 55 S over Mattese CR | 1964 | 157,561 | Fair |
| Is 64 E over Is 170 | 2008 | 155,924 | Good |
| Is 64 E over Cst Clayton Rd Deer Cre | 2008 | 155,290 | Fair |
| Is 64 E over Black CR | 1956 | 152,770 | Fair |
| Is 64 E over Cst S Brentwood Blvd | 2008 | 152,770 | Good |
| Is 64 E over US 67 US 61 Rp IS64W T | 2008 | 148,637 | Fair |
| Is 70 E over Cst Cypress Rd | 2000 | 143,423 | Fair |
| Is 70 E over Cst Airflight Dr | 2000 | 141,917 | Good |
| Is 70 E over Cst Jennings Station Rd | 2001 | 141,512 | Fair |
| Is 70 E over Is 270 | 1957 | 140,710 | Fair |
| Is 270 E over Fee Fee CR Br | 1965 | 138,256 | Fair |
| Is 270 E over UP RR Fee Fee CR | 1965 | 138,256 | Fair |
| Is 270 E over Cst Dorsett Rd | 2009 | 138,108 | Good |
| Is 270 E over Cst West Port Plaza Dr | 1965 | 137,112 | Poor |
| Is 70 E over Drain Dtch | 2001 | 132,220 | Fair |
| Is 70 E over Maline CR | 1958 | 121,986 | Fair |
| Is 55 S over Crd Reavis Barracks Rd | 1962 | 113,655 | Fair |
| Is 55 S over Afton Drain Dtch | 1962 | 112,163 | Fair |
| Is 270 E over Maline CR | 1931 | 111,723 | Poor |
| Is 55 S over Crd Bayless Ave | 1962 | 111,533 | Fair |
| Is 270 E over Rt N | 2022 | 111,443 | Good |
| Is 44 E over Br Gravois CR | 1967 | 109,171 | Fair |
| Is 44 E over Br Gravois CR | 1969 | 109,171 | Fair |
| Is 270 W over Rt Ab | 1964 | 108,469 | Fair |
| Is 270 E over Cowmire CR | 1960 | 105,806 | Fair |
| Is 270 E over NS RR | 1960 | 105,806 | Fair |
| Is 270 W over Cst Conway Rd | 2023 | 100,131 | Good |
| Is 170 E over Cst Ladue Rd | 1968 | 98,631 | Fair |
| Is 170 E over Cst Woodson Rd | 1968 | 97,246 | Fair |
| Is 170 E over Rvr Des Peres | 1968 | 97,246 | Poor |
| Is 170 E over UP RR | 1968 | 97,246 | Fair |
| Is 270 W over Cst Rott Rd | 1967 | 95,524 | Fair |
| Is 170 E over Rt D | 1980 | 95,057 | Fair |
| Is 170 E over Cst Forest Park Pkwy | 1968 | 91,663 | Fair |
| Is 270 W over Crd Marshall Rd | 1962 | 91,175 | Fair |
| Is 44 E over Mo 141 | 1958 | 89,112 | Fair |
| Is 270 E over Mo 367 | 1961 | 87,966 | Fair |
| Is 70 W over Rp IS70E to IS270E | 1978 | 85,412 | Fair |
| Is 270 E over Cst Rott Rd | 1967 | 85,345 | Fair |
| Is 70 W over Coldwater CR | 2000 | 84,593 | Good |
| Is 70 W over Missouri Rvr Cst Main S | 1958 | 84,031 | Fair |
| Is 70 E over Rp IS70E to IS270E | 1978 | 83,663 | Fair |
| Is 270 E over Cst Conway Rd | 2023 | 82,813 | Good |
| Is 270 E over Rt Ab | 1964 | 82,813 | Fair |
| Is 270 E over Crd Marshall Rd | 1962 | 79,646 | Fair |
| Is 270 E over Watkins CR | 1931 | 78,987 | Fair |
| Is 55 S over Crd Butler Hill Rd | 1995 | 78,503 | Fair |
| Is 44 E over Ranken Br | 1930 | 76,485 | Fair |
| Is 70 E over Coldwater CR | 2000 | 75,943 | Good |
| Is 270 W over Rp IS70E to IS270E | 1979 | 74,863 | Fair |
| Is 70 E over Rp Bermuda Rd to Rtns | 2001 | 74,435 | Fair |
| Is 44 E over BNSF RR CR | 1983 | 74,368 | Fair |
| Is 44 E over Meramec Rvr Backwood Dr | 1954 | 74,368 | Fair |
| Is 44 E over UP RR | 1983 | 74,368 | Fair |
| Is 44 E over Williams CR | 1958 | 74,295 | Fair |
| Is 70 W over Rp IS170E to IS70E Is 1 | 1979 | 72,040 | Fair |
| Is 64 W over Co North Forty Dr to Sor | 1985 | 71,687 | Poor |
| Mo 364 E over Creve Coeur Lk | 1999 | 71,512 | Good |
| Is 64 W over Rt Jj | 1991 | 70,485 | Fair |
| Is 270 E over Mo 180 | 1960 | 70,299 | Fair |
| Is 270 E over Rp IS70E to IS270E | 1979 | 70,299 | Fair |
| Is 270 E over Rp IS70W to IS270W | 1979 | 69,765 | Fair |
| Is 44 E over Mo 109 | 1986 | 69,109 | Fair |
| Is 270 W over Rp IS70W to IS270W | 1979 | 68,491 | Fair |
| Is 64 W over Is 270 Rp IS270E to IS6 | 1988 | 68,183 | Fair |
| Is 64 E over Is 270 Rp IS270E to IS6 | 1988 | 67,373 | Fair |
| Is 64 E over Rt Jj | 1991 | 67,373 | Good |
| Is 64 W over Creve Coeur CR | 1988 | 66,484 | Fair |
| Is 64 W over Mo 340 | 1968 | 66,484 | Fair |
| Is 70 W over Rt N Rp Rtnn to IS70W | 2001 | 66,339 | Good |
| Is 64 E over Co North Forty Dr to Sor | 1985 | 64,631 | Poor |
| Is 64 E over Creve Coeur CR | 1988 | 64,631 | Fair |
| Is 55 S over Meramec Rvr | 1964 | 63,036 | Fair |
| Is 70 E over Is 170 | 1979 | 62,030 | Fair |
| Is 70 E over Cst Springdale Ave | 2000 | 61,156 | Good |
| Is 70 E over Is 170 Rp IS170W to I | 1979 | 61,156 | Fair |
| Is 70 W over Cst Springdale Ave | 2000 | 60,830 | Good |
| Is 70 W over Is 170 | 1979 | 60,830 | Fair |
| Is 270 W over Cst North Hanley Rd | 2002 | 60,687 | Good |
| Is 270 E over Rt Ac | 2022 | 59,106 | Good |
| Is 55 N over Crd Butler Hill Rd | 1995 | 59,090 | Fair |
| Mo 141 S over Meramec Rvr | 1983 | 58,942 | Fair |
| Is 44 W over Cst Elm Ave | 1969 | 57,840 | Fair |
| Is 70 E over Rp IS70W to IS270W | 1978 | 57,805 | Fair |
| Is 70 W over Rp IS70W to IS270W | 1978 | 57,047 | Fair |
| Is 44 E over Cst Elm Ave | 1969 | 56,367 | Fair |
| Is 44 W over Cst Berry Rd | 1969 | 56,358 | Fair |
| Is 170 E over Rp IS170E to MO180E Rp | 1981 | 54,264 | Fair |
| Is 55 S over Cst Green Park Rd | 1962 | 53,950 | Fair |
| Is 55 S over Gravois CR | 1962 | 53,950 | Fair |
| Is 270 W over Mo 180 | 1960 | 53,809 | Fair |
| Is 270 W over Rp IS270E to MO370W | 1990 | 53,809 | Fair |
| Is 44 E over Cst Berry Rd | 1969 | 53,569 | Fair |
| Is 55 N over Cst Green Park Rd | 1962 | 52,694 | Fair |
| Is 55 N over Gravois CR | 1962 | 52,694 | Fair |
| Is 170 E over Mo 115 | 1979 | 52,174 | Fair |
| Is 270 E over Coldwater Crk | 2020 | 52,041 | Good |
| Is 270 E over Rp IS270E to MO370W | 1990 | 51,997 | Fair |
| Is 44 W over BNSF RR | 2016 | 51,357 | Fair |
| Is 270 E over Cst North Hanley Rd | 2002 | 51,297 | Good |
| Is 44 E over BNSF RR | 2016 | 50,999 | Good |
| Is 270 W over Coldwater CR | 2020 | 50,728 | Fair |
| Is 170 W over Mo 115 | 1979 | 50,433 | Fair |
| Is 44 W over US 50 US 61 | 1967 | 50,161 | Fair |
| Is 170 E over Mo 340 Rp IS170E to MO3 | 2006 | 50,028 | Good |
| Is 64 W over UP RR Bonhomme CR | 1968 | 49,794 | Fair |
| Is 270 E over Watkins CR | 1931 | 49,724 | Fair |
| Is 170 W over Cst Airport Rd | 1980 | 48,777 | Fair |
| Is 170 W over NS RR Coldwater CR | 1980 | 48,653 | Fair |
| Is 64 E over Mo 340 | 1968 | 48,369 | Fair |
| Is 64 E over UP RR Bonhomme CR | 1987 | 48,369 | Fair |
| Mo 100 E over Grand Glaize CR | 1921 | 47,536 | Fair |
| Is 170 E over Cst Airport Rd | 1980 | 46,871 | Fair |
| Is 170 E over Rp Boeing Rd to IS170E | 1980 | 46,871 | Fair |
| Is 64 W over Missouri Rvr Katy Trail | 1991 | 46,479 | Fair |
| Mo 370 E over Cst Missouri Bottom Rd | 1990 | 46,401 | Fair |
| Is 170 W over Mo 340 Rp MO340E to IS1 | 2006 | 46,099 | Good |
| Is 44 E over US 50 US 61 | 1967 | 44,596 | Fair |
| Mo 30 E over Sunset Hill CR | 1968 | 44,242 | Fair |
| Is 44 W over Cst Laclede Station Rd | 1969 | 43,734 | Fair |
| Is 44 E over Cst Laclede Station Rd | 1969 | 43,333 | Fair |
| Is 44 E over Cst Yarnell Rd Merame | 2018 | 43,057 | Good |
| Is 170 E over Cst Clayton Rd | 1968 | 41,851 | Fair |
| Is 170 E over Cst Galleria Pkwy | 1968 | 41,851 | Fair |
| Is 170 E over Cst S Brentwood Blvd | 1968 | 41,851 | Fair |
| Mo 231 S over Is 255 | 2007 | 41,695 | Fair |
| Is 255 S over Is 55 Is 55 Rp IS270 | 1964 | 41,474 | Fair |
| Mo 231 S over Martigney CR | 1900 | 40,970 | Fair |
| Mo 100 E over Br Grand Glaize CR | 1920 | 40,045 | Fair |
| Mo 100 E over Glaize CR | 1921 | 40,045 | Fair |
| Mo 367 S over Or 270 Or to Lusher Rd | 2005 | 39,915 | Fair |
| Is 170 W over Cst Clayton Rd | 1968 | 39,727 | Fair |
| Is 170 W over Cst S Brentwood Blvd | 1968 | 39,727 | Fair |
| Is 270 E over Crd Bellefontaine Rd | 1961 | 39,683 | Fair |
| Is 44 E over Williams CR | 1960 | 39,259 | Fair |
| Mo 30 E over Is 270 | 1966 | 38,793 | Fair |
| Mo 364 W over Missouri Rvr | 1999 | 38,225 | Fair |
| Is 44 W over Cst Yarnell Rd Merame | 2018 | 38,176 | Good |
| Mo 141 S over Mo 100 Rp MO141S to MO1 | 1997 | 38,073 | Fair |
| Mo 364 E over Mo 141 Rp MO364E to M | 2001 | 37,953 | Good |
| Mo 141 S over Fenton CR | 1974 | 37,845 | Fair |
| Mo 100 E over Fishpot CR | 1921 | 37,620 | Fair |
| Is 44 W over Meramec Rvr South Outer | 1968 | 37,539 | Poor |
| Is 270 W over Rt Ac | 2022 | 37,303 | Good |
| Is 44 W over Williams CR | 1958 | 37,226 | Poor |
| Is 170 W over Cst Galleria Pkwy | 1968 | 36,982 | Fair |
| Mo 21 S over Is 270 | 1967 | 36,433 | Fair |
| Mo 364 W over Cst Creve Coeur Mill R | 2001 | 36,086 | Fair |
| Mo 364 W over Mo 141 Rp MO364E to M | 2001 | 36,086 | Good |
| Is 255 N over Is 55 Rp IS270W to IS55 | 1964 | 35,885 | Fair |
| Mo 30 E over Fenton CR | 1970 | 35,636 | Fair |
| Mo 364 E over Cst Creve Coeur Mill R | 2001 | 35,426 | Good |
| Laclede Sta. Rd over Deer CR | 1974 | 34,312 | Fair |
| Mo 180 E over Coldwater CR | 2011 | 33,934 | Fair |
| Mo 180 E over Dawson CR | 1985 | 33,934 | Fair |
| Mo 141 S over Central Midland RR | 2012 | 33,691 | Fair |
| Mo 141 S over Creve Coeur CR | 2012 | 33,691 | Fair |
| Mo 141 S over Cst Water Works Dr Crev | 2012 | 33,691 | Fair |
| Mo 141 S over Lit Creve Coeur CR | 2012 | 33,691 | Fair |
| Is 255 S over Crd Koch Rd | 1977 | 33,347 | Fair |
| Mo 366 W over Is 44 Rp IS270E to IS44 | 2018 | 32,909 | Good |
| Rt D E over Fee Fee CR | 1966 | 32,720 | Fair |
| Rt D E over Fee Fee CR | 1966 | 32,720 | Fair |
| Dougherty Ferry Rd over Is 270 | 2007 | 32,341 | Good |
| Dorsett Rd over Fee Fee CR | 1980 | 31,959 | Fair |
| Shackelford Rd over Daniel Boone CR | 2015 | 31,325 | Good |
| Is 44 W over Lp 44 | 2002 | 31,317 | Good |
| US 50 E over BNSF RR | 1977 | 30,976 | Fair |
| US 50 E over Rp IS55S to IS255S | 1995 | 30,976 | Fair |
| Mo 141 S over Or 44 BNSF RR | 1984 | 30,753 | Fair |
| Mo 340 E over Is 270 | 2002 | 30,696 | Fair |
| Mo 100 E over Caulks CR | 1921 | 30,545 | Fair |
| Is 255 N over Crd Koch Rd | 1977 | 30,251 | Fair |
| Is 255 N over Mississippi Rvr UP RR | 1985 | 30,251 | Fair |
| Is 255 S over Mississippi Rvr UP RR | 1990 | 30,251 | Fair |
| US 67 S over Br Coldwater CR | 1968 | 29,942 | Fair |
| US 67 S over Coldwater CR | 1968 | 29,942 | Fair |
| US 50 E over Rp IS255N to IS55N | 1995 | 29,869 | Fair |
| US 67 S over Mo 180 | 1969 | 29,662 | Fair |
| Is 270 E over BNSF RR | 1958 | 29,389 | Fair |
| Is 270 W over BNSF RR | 1958 | 29,114 | Fair |
| Is 270 W over Crd Bellefontaine Rd | 1961 | 29,114 | Fair |
| Is 44 W over Fox CR | 1960 | 29,055 | Fair |
| Mo 141 S over Maryville CR | 2010 | 29,021 | Fair |
| Mo 141 S over Maryville CR Ovrfl | 2010 | 29,021 | Fair |
| Is 44 E over Fox CR | 1960 | 28,870 | Fair |
| Is 44 E over Lp 44 | 2002 | 28,870 | Fair |
| Dougherty Ferry Rd over Des Peres CR | 1991 | 28,843 | Fair |
| W Florissant Ave over Dellwood CR | 1967 | 28,747 | Fair |
| Big Bend Rd E over Mo 141 | 2000 | 28,618 | Good |
| Hanley Rd over Hampton Br | 1967 | 28,489 | Fair |
| Hanley Rd S over Cst Eager Rd | 2008 | 28,480 | Good |
| Hanley Rd S over Is 64 | 2008 | 28,480 | Fair |
| W Florissant Ave over Maline CR | 2004 | 28,373 | Good |
| Big Bend Rd over Fishpot CR | 1967 | 28,190 | Fair |
| Mo 141 N over Or 44 BNSF RR | 1984 | 28,189 | Fair |
| Is 170 W over Rp IS170W to MO180W R | 1981 | 27,845 | Fair |
| Mo 340 E over Cst Woodcrest Executiv | 2002 | 27,789 | Fair |
| US 67 S over Deer CR | 1930 | 27,277 | Fair |
| US 67 S over Deer Crk | 2023 | 27,277 | Good |
| Is 170 E over Cst Frost Ave | 1978 | 27,257 | Fair |
| Is 170 E over Cst Nyflot Ave | 1978 | 27,257 | Fair |
| Is 170 E over Rp Frost Ave to IS170E | 1978 | 27,257 | Good |
| Is 170 W over Cst Frost Ave | 1978 | 27,257 | Fair |
| Is 170 W over Cst Nyflot Ave | 1978 | 27,257 | Fair |
| Is 170 W over Is 270 Rp Dunn Rd to Is | 2002 | 27,257 | Fair |
| Is 170 W over Rp Frost Ave to IS170E | 1978 | 27,257 | Fair |
| Mo 367 S over Crd Parker Rd Or to B | 2005 | 27,147 | Good |
| Big Bend Rd over Trib to Fishpot CR | 2008 | 27,120 | Good |
| Dougherty Ferry Rd over Grand Glaize CR | 1993 | 26,967 | Fair |
| Florissant Rd over Maline CR | 1997 | 26,955 | Fair |
| Patterson Rd over Daniel Boone CR | 1966 | 26,848 | Fair |
| Fee Fee Rd over Creve Coeur CR Tri | 1981 | 25,920 | Fair |
| Rp IS55N to IS270E over Crd Von Talge Rd BNSF R | 1993 | 25,902 | Good |
| Rp IS55N to IS270E over Is 55 Is 255 | 1991 | 25,902 | Good |
| Big Bend Blvd over Deer CR | 1959 | 25,659 | Fair |
| Mo 21 S over Mattese CR | 1967 | 25,160 | Poor |
| US 50 E over Is 55 | 1995 | 25,152 | Fair |
| Mo 340 E over US 67 | 2003 | 24,888 | Fair |
| Mo 364 E over Is 270 | 1966 | 24,866 | Fair |
| Mo 364 W over Is 270 | 1966 | 24,866 | Fair |
| Big Bend Blvd E over Is 64 | 2008 | 24,843 | Fair |
| Rp IS270W to IS55N over Crd Von Talge Rd BNSF R | 1993 | 24,778 | Fair |
| Mo 141 N over Grand Glaize CR | 1997 | 24,720 | Good |
| New Florissant Rd over Fountain CR | 1961 | 24,597 | Fair |
| Rt D E over US 67 | 1961 | 24,533 | Poor |
| Brentwood Blvd over Deer CR | 1912 | 23,967 | Good |
| Mo 370 W over Missouri Rvr Cst Main | 1993 | 23,934 | Fair |
| Rt Ac S over Br Maline CR | 1968 | 23,850 | Fair |
| Mo 100 W over Is 270 Rp IS270W to MO1 | 1999 | 23,839 | Fair |
| Mo 370 W over Cowmire CR | 1990 | 23,497 | Fair |
| Mo 370 W over Cst Ferguson Ln | 1990 | 23,497 | Fair |
| Rp IS70E to IS270E over Rp IS270E to MO180 | 1981 | 23,487 | Fair |
| Mo 141 S over Grand Glaize CR | 1997 | 23,470 | Good |
| Dougherty Ferry Rd over Br of Grand Glaize | 2000 | 23,339 | Fair |
| Union Rd E over Is 55 | 2009 | 23,198 | Good |
| Mo 100 E over Cst Des Peres Rd Cst | 1995 | 23,192 | Good |
| Mo 100 E over Is 270 Rp MO100E to IS2 | 1962 | 23,192 | Fair |
| Mo 340 E over Cst Chesterfield Pkwy | 1990 | 22,990 | Fair |
| Mo 370 E over Cowmire CR | 1990 | 22,904 | Fair |
| Mo 370 E over Cst Ferguson Ln | 1990 | 22,904 | Fair |
| Bowles Ave over Yarnell CR | 1980 | 22,842 | Fair |
| Mo 109 S over Clifty CR | 1988 | 22,783 | Fair |
| Mo 340 W over Cst Chesterfield Pkwy | 1990 | 22,693 | Poor |
| Rp IS170W to IS270 over Or 270 | 2002 | 22,425 | Good |
| Rp IS170W to IS270 over Rp IS270E to North Hanle | 2002 | 22,425 | Good |
| US 61 S over Mattese CR | 2003 | 22,346 | Good |
| Clayton Rd E over Mo 141 | 1987 | 22,335 | Fair |
| Rp IS64W to IS170W over Rp Hanley Dr to IS64W R | 2007 | 22,212 | Good |
| Mo 30 W over Meramec Rvr Cst William | 1968 | 22,165 | Fair |
| Mo 30 W over Mo 141 | 1970 | 22,165 | Fair |
| Mo 30 E over Meramec Rvr Cst Water S | 1968 | 22,077 | Fair |
| Rp IS170E to IS64E over Is 64 Rp Hanley Dr to I | 2008 | 22,039 | Fair |
| US 61 S over Two Mile CR | 1930 | 21,816 | Fair |
| Rp IS270E to IS70W over Is 270 | 1982 | 21,810 | Fair |
| Mo 109 S over Mo 100 | 1974 | 21,668 | Good |
| Mo 30 E over Gravios CR | 2008 | 21,489 | Good |
| Rp IS270W to IS170 over Is 270 Is 170 Or 270 | 2002 | 21,448 | Fair |
| Big Bend Rd E over Gravois CR | 1967 | 21,368 | Fair |
| Boones Crossing Rd over Is 64 | 1999 | 21,252 | Fair |
| Graham Rd over Fountain CR | 2010 | 21,018 | Fair |
| Big Bend Rd E over Is 44 Is 44 | 2022 | 20,970 | Good |
| Mo 366 E over US 50 | 1983 | 20,756 | Fair |
| Forest Park Drive over Shaw Park Dr | 2005 | 20,527 | Good |
| Forest Park Pkwy E over Brentwood Blvd | 2005 | 20,527 | Good |
| US 67 S over Coldwater Br | 1989 | 20,336 | Fair |
| US 67 S over Cst Lynn Haven Ln | 1989 | 20,336 | Fair |
| Patterson Rd over Lawnview CR | 1995 | 19,778 | Good |
| Patterson Rd over New Halls Ferry CR | 1998 | 19,702 | Fair |
| US 67 S over Coldwater CR | 1969 | 19,500 | Fair |
| Rp IS170E to IS64W over Cst S Brentwood Blvd | 2008 | 19,242 | Good |
| Rp IS170E to IS64W over Is 170 Rp IS170E to Bre | 2008 | 19,242 | Good |
| Meramec Bottom Rd over Meramec Rvr Trib | 2000 | 19,169 | Good |
| Mo 367 S over Cst Chambers Rd | 2002 | 18,963 | Good |
| Mo 367 S over Maline CR | 2005 | 18,963 | Good |
| Mo 367 N over Crd Redman Rd Or to B | 2005 | 18,897 | Good |
| Mcknight Rd over Deer CR | 2004 | 18,796 | Fair |
| Mo 366 E over Gravois CR | 2024 | 18,756 | Good |
| Rt U S over Is 70 | 2001 | 18,645 | Fair |
| Kehrs Mill Rd E over Bonhomme CR | 2012 | 18,432 | Fair |
| Mo 109 S over Cst E First St BNSF R | 1987 | 18,408 | Fair |
| Mo 109 S over Flat CR Bike Path | 1987 | 18,408 | Fair |
| Mo 180 E over James CR | 1934 | 18,291 | Fair |
| Mo 30 E over Mo 141 | 1970 | 18,267 | Fair |
| Mo 21 S over Gravois CR | 1969 | 18,182 | Good |
| Mo 21 S over Pedestrain Trail | 1969 | 18,182 | Poor |
| Rp IS270E to IS64E over Rt Jj | 1990 | 18,160 | Fair |
| Rp IS64E to IS170W over Is 170 Cst S Brentwoo | 2008 | 18,123 | Fair |
| West Florissant Av over Is 270 | 2020 | 18,087 | Fair |
| Mo 21 S over Butler Lk | 2002 | 18,038 | Fair |
| Mo 21 S over Meramec Rvr Crd Meramec | 1940 | 18,038 | Fair |
| Washington St over Cold Water CR | 1930 | 17,556 | Fair |
| US 67 N over Is 70 Rp Natural Brid | 1957 | 17,465 | Fair |
| Rp IS270E to MO364 over Mo 364 | 2010 | 17,452 | Good |
| US 61 S over Is 255 | 2004 | 17,266 | Fair |
| Rt Ac S over Maline CR | 1968 | 17,221 | Fair |
| Mo 366 E over Gravois CR | 1931 | 17,101 | Poor |
| Forest Park Pkwy W over Brentwood Blvd | 2005 | 16,983 | Good |
| Central Ave S over Is 44 | 1989 | 16,934 | Fair |
| Chambers Rd over Black Jack CR | 1958 | 16,749 | Fair |
| Rt N S over Ball CR | 1949 | 16,587 | Fair |
| Rp IS44W to IS270W over Is 44 Is 270 Mo 366 | 1996 | 16,460 | Good |
| James S Mcdonnell over Is 270 | 2002 | 16,444 | Fair |
| Rt D E over UP RR | 2004 | 16,360 | Fair |
| Rt D W over UP RR | 2004 | 16,360 | Good |
| Lucas-hunt Rd over Maline CR | 1974 | 16,241 | Fair |
| US 61 S over Meramec Rvr | 2003 | 16,233 | Good |
| Baxter Rd over Bonhomme CR | 1984 | 16,220 | Fair |
| Bennington Pl N over Mo 364 | 1997 | 16,210 | Fair |
| Mo 370 E over Is 270 Rp IS270E to MO3 | 1991 | 16,184 | Fair |
| Mo 370 E over NS RR | 1991 | 16,184 | Fair |
| Shrewsbury Ave S over Is 44 Rp IS44W to Shrew | 1969 | 16,095 | Fair |
| Mo 109 S over Bonhomme CR | 2009 | 15,945 | Good |
| Rt P S over Deer CR | 1937 | 15,770 | Fair |
| Rp IS70W to IS170E over Is 70 Rp IS170E to IS70 | 1981 | 15,599 | Fair |
| Rp IS64W to IS270W over Is 270 Rp IS64E to IS27 | 1988 | 15,521 | Fair |
| Rt Ac S over Br Maline CR | 1968 | 15,413 | Poor |
| Mo 370 W over NS RR | 1990 | 15,375 | Fair |
| Rp Brentwood Blvd over Is 170 | 2008 | 15,361 | Good |
| Bowles Ave S over Is 44 | 1981 | 15,276 | Fair |
| N Hanley Rd over Metrolink | 1992 | 15,183 | Fair |
| Rp IS64E to IS270E over Cst Conway Rd | 2023 | 15,103 | Good |
| Rp IS64E to IS270E over Is 270 Rp IS270E to IS6 | 1988 | 15,103 | Good |
| Mo 340 E over Creve Coeur CR | 1968 | 15,056 | Fair |
| Mo 340 E over Mo 141 | 2011 | 15,056 | Fair |
| Reavis Barracks Rd over Gravois CR | 1959 | 15,054 | Poor |
| Mo 367 N over Coldwater CR | 2002 | 15,039 | Fair |
| Mo 367 N over US 67 | 1988 | 15,039 | Good |
| Mcknight Rd over Trib to Black CR | 2015 | 15,000 | Good |
| Fee Fee Rd S over Is 70 | 1957 | 14,972 | Fair |
| Mo 100 E over Deer CR | 1993 | 14,968 | Good |
| Mo 109 S over Hamilton CR | 1997 | 14,768 | Fair |
| Mo 109 S over Pond CR | 1997 | 14,768 | Fair |
| Rp IS270W to IS44W over Rp IS270E to IS44W Rp | 2018 | 14,601 | Good |
| Ashby Rd over Midland Blvd | 1993 | 14,413 | Fair |
| Sappington Rd over Kirkwood CR | 1959 | 14,383 | Fair |
| Rt D E over Service Rd St. Louis | 2006 | 14,240 | Fair |
| Baxter Rd over Creve Coeur CR | 2012 | 14,233 | Good |
| Kienlen Ave over Trra of St.louis R | 1983 | 14,224 | Fair |
| Rp IS44E to IS270E over Is 44 Is 270 Mo 366 | 1996 | 14,152 | Good |
| Rp IS170E to IS70E over Is 170 | 1981 | 14,018 | Fair |
| Mcknight Rd over Black CR | 2014 | 13,988 | Good |
| Rp IS270W to IS55N over Is 55 Is 55 | 1964 | 13,959 | Fair |
| Mo 141 N over Mo 370 | 1991 | 13,925 | Poor |
| Bayless Avenue over Gravois Crk | 2022 | 13,770 | Good |
| N Elm Ave over Shady Grove CR | 1989 | 13,730 | Poor |
| Rp IS64W to MO141S over Co North Forty Dr to Sor | 1985 | 13,713 | Poor |
| Mo 100 E over Black CR | 2021 | 13,625 | Good |
| Mo 109 S over Meramec Rvr | 1972 | 13,313 | Fair |
| Holloway Rd over Grand Glaize CR | 1976 | 13,260 | Fair |
| Rt D E over Br Rvr Des Peres | 2012 | 13,242 | Fair |
| Rt D E over UP RR | 1983 | 13,242 | Fair |
| Rp MO141S to Clayt over Or 141 | 1989 | 13,153 | Fair |
| Rp IS55S to IS255S over Is 55 Is 255 | 1991 | 13,102 | Fair |
| Mo 115 S over Maline CR | 1979 | 12,831 | Fair |
| Mo 367 S over Coldwater CR | 2005 | 12,831 | Good |
| Mo 367 S over US 67 | 2005 | 12,831 | Good |
| Barrett Station Rd over Royal Acres CR | 2010 | 12,800 | Good |
| Murdoch Ave E over Is 44 | 1969 | 12,634 | Fair |
| Sulphur Spring Rd over Fishpot CR | 2002 | 12,604 | Good |
| Mo 367 S over Crd Redman Rd Or to B | 2005 | 12,596 | Good |
| Cypress Rd over Cypress CR Trib | 1975 | 12,571 | Good |
| Clayton Rd over Black CR | 1987 | 12,520 | Fair |
| Baumgartner Rd over BNSF RR | 1981 | 12,499 | Fair |
| Baumgartner Rd over Br of Mattese CR | 1982 | 12,499 | Good |
| Aubuchon Rd over Branch of Cowmire | 2022 | 12,454 | Good |
| Bellefontaine Rd over Maline CR | 1922 | 12,412 | Fair |
| Clayton Rd over Deer CR | 2010 | 12,346 | Fair |
| SW Lucas-hunt Rd over NS RR | 1973 | 12,342 | Poor |
| Mason Rd over Smith CR | 2013 | 12,294 | Good |
| Baumgartner Rd over Mattese CR | 1980 | 12,285 | Good |
| Mo 340 E over Rvr Des Peres | 1962 | 12,270 | Fair |
| Mo 340 E over Rvr Des Peres | 1962 | 12,270 | Fair |
| Mckelvey Rd S over Is 270 Rp IS270E to I | 1979 | 12,192 | Fair |
| Mckelvey Rd S over Is 70 Rp IS270E to IS70 | 1979 | 12,192 | Fair |
| Mckelvey Rd S over James CR | 1968 | 12,192 | Fair |
| Elizabeth Ave S over Is 270 | 2020 | 11,969 | Good |
| Fee Fee Rd over Fee Fee CR | 1970 | 11,800 | Fair |
| Mo 141 S over Creve Coeur CR | 2012 | 11,790 | Fair |
| Mo 141 S over Creve Couer CR | 2011 | 11,790 | Fair |
| Clayton Rd over Caulks CR | 1979 | 11,751 | Fair |
| Ladue Rd over Deer CR | 1989 | 11,750 | Fair |
| Sappington Rd S over Is 270 | 1995 | 11,726 | Fair |
| Olive Blvd over Hanley Hills CR | 1915 | 11,723 | Fair |
| Rp MO141N to IS44W over Mo 141 | 2016 | 11,676 | Good |
| Forest Park Pkwy E over Hanley Rd | 2005 | 11,603 | Good |
| Union Rd over Gravois CR | 1967 | 11,550 | Fair |
| Missouri Bottom Rd over Is 270 | 1990 | 11,356 | Poor |
| US 67 N over BNSF RR | 1988 | 11,196 | Fair |
| Rp IS170W to IS70W over Is 170 | 1981 | 11,193 | Fair |
| Mo 180 W over Is 70 | 1957 | 11,183 | Fair |
| US 67 S over BNSF RR | 2002 | 11,082 | Fair |
| S Mcknight Rd S over Is 64 | 2008 | 11,057 | Good |
| Chesterfield Pkwy over Is 64 | 1990 | 11,036 | Fair |
| West Port Plaza Dr over Rt D | 1978 | 10,975 | Fair |
| Big Bend Blvd W over Is 44 | 1969 | 10,942 | Fair |
| Or 64 E over Mo 141 | 1985 | 10,800 | Fair |
| Old Halls Ferry Rd over Is 270 | 2020 | 10,798 | Fair |
| Mo 100 E over Fox CR | 1977 | 10,779 | Fair |
| Delmar Blvd E over Is 170 | 2011 | 10,766 | Good |
| River City Blvd over Gravois CR | 2009 | 10,746 | Good |
| Spoede Rd S over Is 64 Rp IS64W to Spoed | 2008 | 10,719 | Fair |
| Old Hwy 141 over Br of Fenton CR | 2003 | 10,700 | Fair |
| James S Mcdonnell over Coldwater Crk | 2023 | 10,699 | Good |
| Vance Rd over Fishpot CR | 2018 | 10,679 | Good |
| Old Hwy 141 over Fenton CR | 2011 | 10,608 | Fair |
| Rp Hanley Dr to Is over Is 170 | 2008 | 10,586 | Good |
| Murdoch Ave over BNSF RR | 2012 | 10,485 | Fair |
| Woodford Way S over Is 270 | 1988 | 10,438 | Fair |
| Big Bend Blvd E over Is 44 | 1969 | 10,426 | Fair |
| Rp Chesterfield Ai over Is 64 | 2013 | 10,400 | Good |
| Mattis Rd over W Trib Mattese CR | 1987 | 10,357 | Fair |
| Schuetz Rd over E Trib of Fee Fee | 2005 | 10,354 | Fair |
| Rt D E over Engelholm CR Metrolink | 1997 | 10,336 | Good |
| Old Halls Ferry Rd over Halls Ferry CR | 2018 | 10,330 | Good |
| Lilac Ave over Watkins CR | 1964 | 10,279 | Fair |
| Dorsett Rd E over US 67 | 2019 | 10,253 | Good |
| Highland Ter N over Is 64 Rp IS64W to Big B | 2008 | 10,172 | Good |
| US 67 N over Or 270 | 2020 | 10,168 | Good |
| US 67 S over Is 270 | 2020 | 10,168 | Good |
| US 67 S over Is 70 Rp Natural Brid | 1957 | 10,154 | Fair |
| Forsyth Blvd over Pedestrian Walkway | 2013 | 10,152 | Good |
| Chambers Rd over Delwood CR | 1979 | 10,107 | Fair |
| Big Bend Blvd over Br of Grand Glaize | 1928 | 10,081 | Fair |
| US 67 N over Is 270 | 2020 | 10,032 | Good |
| Is 170 E over Or 270 | 1978 | 10,017 | Fair |
| Is 170 E over Or 270 | 2025 | 10,017 | Good |
| Des Peres Rd over Trib Grand Glaize | 1995 | 10,000 | Fair |
| Larkin-williams over Trib Meramec Rvr | 1980 | 10,000 | Fair |
| Old Gravois Rd over Meramec Rvr | 2012 | 10,000 | Good |
| Maryville Centre D over Is 64 | 1985 | 9,850 | Poor |
| Mo 180 E over Is 70 | 1957 | 9,770 | Fair |
| Ashby Rd over St Louis SW RR | 1968 | 9,696 | Good |
| Big Bend Rd E over Is 270 | 1962 | 9,510 | Fair |
| Horan Dr over Trib Meramec Rvr | 1975 | 9,500 | Good |
| Hanley Rd over Rvr Des Peres | 1967 | 9,482 | Fair |
| Forest Park Pkwy W over Hanley Rd | 2005 | 9,479 | Good |
| Mo 366 E over Rp IS270E to IS44E | 2018 | 9,432 | Good |
| Big Bend Blvd over Grand Glaize CR | 2000 | 9,412 | Good |
| Gravois Rd over CR to Meramec Rvr | 1925 | 9,270 | Fair |
| Forest Park Pkwy W over Forsyth Blvd | 2004 | 9,195 | Good |
| Conway Rd over Maryville CR | 2016 | 9,189 | Good |
| New Halls Ferry Rd over Coldwater CR | 1960 | 9,162 | Fair |
| New Halls Ferry Rd over Coldwater CR | 1968 | 9,162 | Fair |
| Mo 141 S over Fee Fee CR | 2003 | 9,053 | Fair |
| Mo 141 S over Trib to Fee Fee CR | 2003 | 9,053 | Fair |
| Mo 231 S over Meramec Rvr | 1995 | 9,048 | Fair |
| Gravois Rd E over Fenton CR | 1970 | 9,015 | Fair |
| Wild Horse CR Rd over Caulks CR | 2010 | 9,004 | Good |
| Mo 141 N over Fee Fee CR | 2003 | 8,981 | Fair |
| Mo 141 N over Trib to Fee Fee CR | 2003 | 8,981 | Fair |
| Mo 180 E over Engelholm CR | 2000 | 8,975 | Fair |
| Mo 180 E over Metrolink | 2000 | 8,975 | Fair |
| Chambers Rd over BNSF RR | 1936 | 8,937 | Fair |
| Ries Rd over Fishpot CR | 2018 | 8,914 | Good |
| Lp 44 E over Clear CR | 1932 | 8,884 | Fair |
| Lp 44 E over Fox CR | 2004 | 8,884 | Good |
| Rp IS270W to US67 over Rp IS55N to IS255S Rp I | 1995 | 8,839 | Fair |
| Mckelvey Rd over BNSF RR Fee Fee CR | 1982 | 8,730 | Fair |
| Rvr City Casino over Kayser CR | 2009 | 8,608 | Good |
| Mo 141 N over Small Lake | 2022 | 8,592 | Good |
| Woodson Rd over Rvr Des Peres | 2009 | 8,563 | Good |
| Clayton Rd E over Is 270 | 1985 | 8,536 | Fair |
| James S Mcdonnell over Is 70 | 1984 | 8,406 | Fair |
| Fee Fee Rd over Midland CR | 2007 | 8,394 | Fair |
| Fee Fee Rd over Trib to Fee Fee CR | 2000 | 8,394 | Good |
| North Hanley Rd over Wabash Ave BNSF RR Cre | 1974 | 8,376 | Fair |
| Midland Blvd E over Is 170 | 1981 | 8,289 | Fair |
| Baxter Rd over Grand Glaize CR | 1982 | 8,280 | Fair |
| Mo 115 S over Metrolink WB Metrolink | 2004 | 8,263 | Good |
| Weidman Rd over Grand Glaize CR | 1973 | 8,214 | Poor |
| Mo 180 E over UP RR | 1988 | 8,139 | Fair |
| Aubuchon Rd over Cowmire CR | 1964 | 8,094 | Fair |
| Schuetz Rd over Trib of Fee Fee CR | 1997 | 8,070 | Fair |
| Spoede Rd over Deer CR | 1981 | 8,060 | Poor |
| Parker Rd over Burning Tree CR | 2016 | 8,057 | Good |
| Rp IS70E to IS170W over Is 70 Rp IS170W to IS70 | 1981 | 8,055 | Fair |
| Rp IS70E to IS170W over Rp IS170W to IS70W | 1981 | 8,055 | Fair |
| River City Casino over UP RR | 2009 | 8,029 | Good |
| Green Park Rd over Gravois CR | 2010 | 8,000 | Fair |
| US 50 E over Is 255 | 1969 | 7,946 | Poor |
| Forest Park Pkwy E over Forsyth Blvd | 2004 | 7,898 | Good |
| Wild Horse CR Rd over Chesterfield CR | 2007 | 7,807 | Good |
| Rp IS64W to Long R over Is 64 | 1968 | 7,797 | Poor |
| S Central Av-rmp C over Forest Park Pkwy Shaw P | 2005 | 7,797 | Good |
| Timberlake Manor D over Is 64 | 1990 | 7,794 | Poor |
| Washington St over Br of Cold Water C | 1963 | 7,794 | Poor |