pa 39 heads south bypassing the village of hershey to the north and west. it passes under norfolk southern railway's harrisburg line, then enters a highly developed area east of the borough of hummelstown. here, the road intersects walton avenue, a local street connecting hersheypark drive to the village. this is the final junction along pa 39 as the route ends later at a modified cloverleaf interchange with us 322 and u.s. route 422.