PA 378 Travel Info
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Pennsylvania Route 378 (designated by the Pennsylvania Department of Transportation as SR 378) is a north-to-south road in Lehigh and Northampton counties. Its northern terminus is at U.S. Route 22 in Bethlehem and the portion north of the Lehigh River is a freeway. The highway was once Interstate 378 but when Interstate 78 was rerouted from U.S. Route ... more
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