The Atlantic City Expressway begins at Route 42 in Turnersville in Washington Township, Gloucester County, where the freeway right-of-way continues north as the North–South Freeway, a part of Route 42. Here, Route 42 continues south on the Black Horse Pike and Route 168 continues north on the Black Horse Pike. A westbound exit provides a connection to northbound Route 168. The expressway then heads southeast, straddling between Washington Township and Gloucester Township, Camden County. On the border between Gloucester Township and Winslow Township, the Atlantic City Expressway features a diamond interchange with County Route 689 (CR 689). Past this interchange, there is a full interchange with CR 536 Spur. The expressway passes under CR 536 and then features a partial interchange with CR 723, with an eastbound exit and a westbound entrance. It then meets Route 73 at another partial interchange, with a westbound exit and an eastbound entrance, before passing over the Southern Railroad of New Jersey's Southern Running Track line.