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I-64 West/I-55 South at Exit 40B
I-64 West/I-55 South at Exit 40B

I-64 West/I-55 South at Exit 40B in Saint Louis. Exit 40B - I-55 South/I-44 West/Tulsa (OK)/Memphis (TN) and I-44 East/To I-70 West/Kansas City/Walnut Street. I-64/US-40 West continues into Saint Louis. I-55 south leaves I-64 west here.

Taken 03-29-2026

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Nearby Signs
Big Green Sign Shield Inside Sign Overhead Freeway Junction Interchange
I-44 I-55 I-64 I-70 US-40 St. Louis City of St. Louis Missouri United States
US-40 East of Kit Carson
I-55 I-55/I-255/I-270 Interchange
I-55/I-44/I-64 Interchange
Current Location
I-44 Exit 291B
US-40 I-64 I-55 Exit 1