Interstate 57

Interstate 57 is a 386 mile interstate in Missouri and Illinois running from Sikeston at Interstate 55 to Chicago at Interstate 90/I-94, bypassing St. Louis. It is the second longest two-digit interstate without an auxiliary route.
In 2018, legislation was passed to extend Interstate 57 into Arkansas with the new terminus being at Interstate 40 in North Little Rock. Currently, Future Interstate 57 signs have been erected in Arkansas along US-67, which will be upgraded to I-57 in the future.

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