concurrently with I-68 at Exit 14A and exits I-68 at Exit 22. US 219 crosses the Mason–Dixon line, the Pennsylvania border, south of Salisbury, Pennsylvania. Pennsylvania From near Grantsville, Maryland north to Ebensburg, Pennsylvania, US 219 is Corridor N of the Appalachian Development Highway System. From Meyersdale, Pennsylvania to just south of Carrolltown, Pennsylvania, US 219 is a limited-access highway. A new 11-mile limited-access segment from Meyersdale to Somerset opened to traffic in the late fall of 2018. On August 9, 2007, Pennsylvania State Transportation Secretary Allen D. Biehler unveiled four signs along US Route 219 that dedicated the route from Maryland to Cambria County, Pennsylvania as the "Flight 93 Memorial Highway". From Carrolltown US 219 runs largely as a two-lane road to DuBois, Pennsylvania, through which it runs as Brady Street, and then returns to a two-lane road after a junction with Interstate 80. US 219 runs directly through the towns of Brockway, Ridgway, and Johnsonburg before reaching Wilcox, where PA Route 321 splits and heads for the borough of Kane. US 219 continues north as a two-lane road until reaching Bradford, where it becomes a limited-access highway and remains so until reaching the New York border. New York US 219 enters Western New York from Pennsylvania south of the Hamlet of Limestone in the Town of Carrollton in Cattaraugus County. Proceeding northward, the highway splits into the main route and a "business route" that follows the original main route. The main route merges with Interstate 86/New York State Route 17 at Exit 23 north of Limestone and splits from I-86/NY 17 at Exit 21 in the city of Salamanca. The business route crosses the Allegheny River and the Southern Tier Expressway and joins New York State Route 417 to the City of Salamanca. Separating from NY 417, the business route rejoins with the main US 219 and turns northward through the rest of Cattaraugus County, passing through Peth, Great Valley, Ellicottville, and Ashford Hollow before crossing the Cattaraugus Creek and entering Erie County. About 4 miles south of Springville, New York, US 219 becomes a divided, limited-access highway. As such, it continues north through half of the county, terminating at exit 55 of the New York State Thruway (Interstate 90) near the west town line of West Seneca south of the City of Buffalo. Before joining the Thruway, US 219 runs parallel to it for about one mile