 PA 412 runs to the south of more of the former Bethlehem Steel site, turning west onto undivided East 3rd Street, with two northbound lanes and one southbound lane.The route passes through commercial areas, narrowing to two lanes and heading through the downtown area of the South Side neighborhood of Bethlehem.PA 412 intersects an access road to the Hill to Hill Bridge, which carries PA 378 over the Lehigh River to the north, at which point PA 412 turns south onto Brodhead Avenue.