Pennsylvania Route 343 community of Bordnersville soon after. The highway was then extended along the local continuation to end at US 22 in Harper Tavern. In 1963, PA 343 was moved back to Lickdale, and seven years after, moved to its northern terminus, thirteen years after the construction of I-78. PA 343 begins at an intersection with PA 72, near the Northwest Elementary School, in the city of Lebanon in Lebanon County. PA 343 heads eastward along Maple Street, a two-lane undivided street maintained by the city, past urbanized homes and businesses. The route turns north onto North 7th Street and passes more
Pennsylvania Route 343 east of Pine Meadows Golf Course before it crosses the creek. The route continues through rural areas and passes through the residential community of Shirksville. PA 343 heads north through more farmland before it comes to an intersection with US 22 (William Penn Highway) south of the community of Fredericksburg. At this point, South Pine Grove Street continues to Fredericksburg and PA 343 turns northeast to become concurrent with US 22 on four-lane divided William Penn Highway. The road runs through agricultural areas with some commercial development, passing to the south of a warehouse. PA 343 splits from US 22