 A major interchange at I-43 is just past the intersection with Walnut Street.Highway 145 turns south onto Sixth Street before terminating at the intersection with US-18 (Wells Street), adjacent to the Wisconsin Center.Highway 145 was once also a part of the Park East Freeway, a short spur running east from its intersection with I-43, over the Milwaukee River before terminating at Broadway and Milwaukee Street at East Knapp Street.