Complex sentence: SH-11 briefly overlaps southbound US-75, then turns back to the east as the Gilcrease Expressway, passing by Tulsa International Airport before arcing back to the south, and its terminus at I-244/US-412 in east Tulsa.
Split into simpler sentences: SH-11 briefly overlaps southbound US-75, then turns back to the east as the Gilcrease Expressway, passing by Tulsa International Airport before arcing back to the south. It then reaches its eastern terminus at I-244/US-412 in east Tulsa.