Major Highways in Allentown Bethlehem
- Running east-west, Interstate 78 starts near Harrisburg and ends in the Holland Tunnel to New York City. The highway curves along the south side of Allentown and Bethlehem.
- Interstate 476 passes to the left of Allentown and is the northeast extension of the Pennsylvania Turnpike. Stretching north-south through eastern portion of the state, I-476’s southern end reaches Philadelphia.