Interstate 55

Interstate 55

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

North

South

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

References:

  1. "Two-Mile Stretch in St. Charles Paved Way for America's Interstate System - Highways Shortened Drives But Weakened Cities." St. Louis Post-Dispatch (MO), December 14, 2003.
  2. "Interchange Reconstruction Gets Off To Early Start." St. Louis Post-Dispatch (MO), December 16, 1991.

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Page Updated Saturday May 12, 2018.