Interstate 55

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The eight-lane Poplar Street Bridge spans the Mississippi River between Downtown St. Louis and East St. Louis, Illinois. The steel girder bridge carries both Interstates 55 and 64 and also U.S. 40. The span joins Interstate 44 to the west and Illinois 3 to the east. It carried Interstate 70 until the Stan Musial Veterans Memorial Bridge opened on February 9, 2014. Photo taken June 1, 2011.

Paralleling the Mississippi River and U.S. 61, Interstate 55 connects St. Louis with Cape Girardeau and Sikeston in southeastern Missouri. The route overlaps with I-44 north to the Poplar Street Bridge in St. Louis and with I-64 & U.S. 40 east across the Poplar Street Bridge into Illinois.

Interstate 55 Missouri Guides

Interstate 55 opened through St. Louis in 1967.1

Major construction upgraded the interchange of Interstate 55 with I-255 and I-270 between 1991 and 1994. This work coincided with a widening through 1997 of Interstate 270 between I-55 and I-44 to eight overall lanes and expansion of I-55 by four lanes from Lindbergh Boulevard (U.S. 50-61-67) to Highway A (Exit 175) at Festus.2


Sources:
  1. "TWO-MILE STRETCH IN ST. CHARLES PAVED WAY FOR AMERICA'S INTERSTATE SYSTEM - HIGHWAYS SHORTENED DRIVES BUT WEAKENED CITIES." St. Louis Post-Dispatch, December 14, 2003.
  2. "Interchange Reconstruction Gets Off To Early Start." St. Louis Post-Dispatch, December 16, 1991.

    Connect with:
    Interstate 44
    Interstate 64
    Interstate 270

    Page Updated 05-12-2018.