Interstate 270

I-270 Chain of Rocks Bridge (St. Louis, Missouri)
Opened September 2, 1966
Steel stringer bridge over Mississippi River on I 270 in St. Louis
Open to traffic

New Canal Bridge (Madison County, Illinois)
Built ca. 1963
Pair of cantilevered through truss bridges over Chain of Rocks Canal on I-270 in Granite City
Replaced by a new bridge

New Chain of Rocks Bridge (Madison County, Illinois)
Built 1966
Bridge over Mississippi River on I 270
Open to traffic

UP - I270 Overpass (St. Louis County, Missouri)
Steel stringer bridge over Interstate 270 on the Union Pacific Railroad
Open to two tracks of railroad traffic