Interstate 55

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 I-55 and I-64 and also U.S. 40. The span joins Interstate 44 to the west and IL 3 to the east. It carried Interstate 70 until the Stan Musial Veterans Memorial Bridge opened on February 9, 2014. - 06/01/2011

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

North

Pemiscot / New Madrid Counties - 61 photos

St. Louis City and County - 55 photos

I-55 North / I-64-U.S. 40 East - 22 photos

South

I-55 South / I-64-U.S. 40 West - 27 photos

St. Louis City and County - 50 photos

Jefferson County - 45 photos

Ste. Genevieve / Perry Counties - 36 photos

Cape Girardeau / Scott Counties - 58 photos

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.

Connect with:

Interstate 44

Interstate 57

Interstate 64

Interstate 155

Interstate 270

Page Updated Saturday May 12, 2018.