Interstate 78 Pennsylvania

Interstate 78 Pennsylvania
I-78 begins at a directional-T interchange with Interstate 81 in Union Township, Lebanon County, Pennsylvania, about 25 miles (40 km) northeast of Harrisburg. Near the east end of the county, at exit 8, U.S. Route 22 merges with I-78.

At exit 51, in Upper Macungie Township, US 22 leaves the freeway. Passengers traveling on I-78 eastbound must use this exit to access I-476 (Northeast Extension of the Pennsylvania Turnpike) and westbound travelers must use exit 53. From exits 53 to 60, I-78 is concurrent with Pennsylvania Route 309. The six lane overlap bypasses the City of Allentown to south and crosses South Mountain.

At exit 60 (A-B going westbound), PA 309 south leaves for the village of Quakertown. Six miles later, Pennsylvania Route 412 interchanges with I-78 in Hellertown. Highway 412 also goes to Bethlehem and Lehigh University. At mile marker 71.04, Pennsylvania Route 33 intersects at Exit 71. Route 33 traverses the Pocono Mountains and goes to Bangor and Interstate 80. The final exit on Interstate 78 in Pennsylvania is for Morgan Hill Road, which goes to Pennsylvania Route 611 and Easton. Interstate 78 then crosses the Interstate 78 Toll Bridge and enters New Jersey.