ALLENTOWN, Pa. — A project to widen Interstate 78 in Lehigh County could one day ease congestion and travel tension — but probably not for a decade.
The state Transportation Department is working to finalize its plans for the project, which is set to be completed in phases through 2036.
The first phase will see crews overhaul the I-78 interchange at Adams Road in Upper Macungie Township and replace the bridge that carries the road over the interstate…