 Following this interchange, the route becomes a freeway and heads near residential neighborhoods and turns north, running to the west of Norfolk Southern's Reading Line.PA 12 crosses the Schuylkill River and comes to a partial cloverleaf interchange with River Road.From here, the freeway curves to the northeast and passes under the Reading Line, heading into commercial areas within Muhlenberg Township and coming to a partial cloverleaf interchange with PA 61 that has an eastbound exit and a westbound entrance along with an eastbound entrance from northbound PA 61.