 The road passes through Middlesex Township, the small unincorporated village of New Kingstown, Silver Spring and Hampden Township.Upon reaching Pennsylvania Route 581, US 11 splits from Carlisle Pike and runs concurrent with PA 581.In Camp Hill, a close suburb of Harrisburg, US 11 stops paralleling I-81 and joins U.S. Route 15 northward through the western suburbs of Harrisburg, crossing I-81 in this area.