 Pennsylvania Route 88 Truck is a truck route in California, Pennsylvania.The route was created to allow access to the Pennsylvania Route 43 toll freeway and to allow large vehicles to avoid the large hill into the Monongahela Valley.The center of the route is at the PA 43 interchange, with a two-lane stretch providing access to California University of Pennsylvania and the surrounding business district, as well as connecting traffic with northbound Route 88; a four-lane stretch provides a more gradual ascent of the hill on Route 88 southbound.