Location: I-255 and Lindbergh Blvd, Mehlville In a mile, we’ll approach Interstate 55. Location: I-255 and I-55, Mehlville Follow 55 north to St. Louis. I-255 turns into I-270. Location: I-255 and I-55, Mehlville Follow 55 south to Memphis, Tenn. Stay straight for I-270 west. I-255 ends.  E to MO-231  S to MO-141, N to US-50/US-61/US-67 … Continue reading Interstate 255, US-50/US-61/US-67/MO 267 to I-55/I-270