Interstate 176 is a spur route of eastern Interstate 76 in Pennsylvania. I-176, known locally as the Morgantown Expressway, travels from Morgantown to Cumru Township in Berks County, a suburban township just outside Reading; the entire length of the highway is just over. The highway was originally known as I-180 or the "Reading Spur" when the Pennsylvania Turnpike was part of I-80S, but was redesignated to its present-day number in 1964 when I-80S became I-76.
Route description
I-176 begins at the Morgantown interchange with I-76 near the community of Morgantown in Caernarvon Township, Berks County. The highway heads north from the trumpet interchange through the toll plaza and continues north as a four-lane freeway called the Morgantown Expressway, coming to an interchange with PA 10 that provides access to Morgantown to the south. At this interchange, the freeway turns to the west, with a southbound runaway truck ramp just past the southbound exit ramp for PA 10. I-176 heads into the borough of New Morgan and runs through forested areas. The road comes to a southbound exit and northbound entrance with SR 2089, a four-lane freeway that heads south to an intersection with PA 10/PA 23 in Morgantown. This used to be I-176's old alignment before it was realigned between that point and its current terminus at the Turnpike. At this point, the freeway curves to the northwest and forms the border between Caernarvon Township to the west and New Morgan to the east, passing through wooded surroundings as it heads to the west of a landfill. The route turns north and becomes the border between Robeson Township to the west and New Morgan to the east before fully entering Robeson Township as it continues through forests. I-176 runs through wooded areas with some farm fields, passing over Allegheny Creek and PA 568 before it comes to a northbound exit and entrance with the parallel PA 10 to the east in Green Hills. From here, the freeway continues through woodland with nearby development and passes over PA 10 prior to entering Cumru Township and coming to a southbound exit and entrance connecting to PA 10 to the west. The road heads north-northeast through forested hills, curving to the north. The route reaches a diamond interchange with PA 724 and passes over Norfolk Southern's Harrisburg Line #1 and the Schuylkill River Trail as it heads west of industrial areas. I-176 reaches its northern terminus at a trumpet interchange with the US 422 freeway southeast of the city of Reading.