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
Maryland Route 343 Highway in December 1935, MD 343's eastern terminus was changed to the intersection of Sunburst Highway and Maryland Avenue. Dorchester Avenue was redesignated MD 744 by 1950. By 1956, MD 343 was removed from downtown Cambridge and replaced MD 551 from High Street to its new eastern terminus at MD 16 at the corner of Washington and Race Streets. The drawbridge over Cambridge Creek remained under state maintenance and is today designated MD 795. Finally, MD 343 was extended east along Washington Street to its present eastern terminus at US 50 when MD 16 was moved to a new bypass