 At this point, PA 68 heads east to form a concurrency with PA 51 on a four-lane divided highway, crossing the Beaver River into the borough of Rochester.Here, the road passes over Norfolk Southern's Fort Wayne Line and comes to an interchange with PA 65, at which point PA 51 heads east along with PA 65.Here, PA 68 splits from PA 51 and heads onto two-lane undivided Adams Street, coming to a traffic circle with PA 18, which heads south and cross the Ohio River on the Rochester–Monaca Bridge.