 Lebanon and the northern terminus in McCandless Township, connecting to US 19 at both ends.The route is notable for a large, unorthodox interchange with the Penn–Lincoln Parkway (I-376/US 22/US 30) just west of the Fort Pitt Tunnel, where the route joins the Parkway and forms several wrong-way concurrencies, including one with its own opposing directions.North of Pittsburgh, U.S. Route 19 Truck is called McKnight Road and south of Pittsburgh it carries West Liberty Avenue and Washington Road.