Pennsylvania Route 75

Pennsylvania Route 75
Route information
Maintained by PennDOT
Length	71.249 mi[1] (114.664 km)
Major junctions
South end	MD 494 in Montgomery Township
Major intersections	PA 995 in Claylick PA 16 in Mercersburg PA 416 near Mercersburg US 30 in Fort Loudon I-76 / Penna Turnpike in Willow Hill PA 641 in Spring Run PA 274 near Doylesburg PA 850 in Honey Grove PA 74 near Spruce Hill PA 333 in Port Royal
North end	US 22 / US 322 in Port Royal
Location
Country	United States
State	Pennsylvania
Counties	Franklin, Juniata
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 74 → I-76

Pennsylvania Route 75 (PA 75) is a 71.2-mile-long (114.6 km) north–south state highway located in central Pennsylvania. The southern terminus is at the Mason–Dixon line in Montgomery Township, where the road continues into Maryland as Maryland Route 494 (MD 494). The northern terminus is at an interchange with U.S. Route 22 (US 22) and US 322 northeast of Port Royal. PA 75 is a two-lane undivided road that passes through the Ridge-and-Valley Appalachians in Franklin and Juniata counties. The route heads north from the Maryland border in Franklin County to Mercersburg, where it runs concurrent with PA 16 and PA 416. From Mercersburg, PA 75 heads north and crosses US 30 in Fort Loudon before it runs northeast through a long valley, where it has an interchange with the Pennsylvania Turnpike (Interstate 76 or I-76) in Willow Hill. The route turns north and heads into Juniata County, where it continues through another valley. PA 75 passes through Port Royal and crosses the Juniata River before it comes to its terminus at US 22/US 322.

PA 75 was designated in 1928 to run from US 30 in Fort Loudon north to US 22 (William Penn Highway) northeast of Port Royal. In 1937, PA 75 was extended south from Fort Loudon to the Maryland border. The route was realigned to bypass Blairs Mills on a shorter alignment to the east in the 1930s. In the 1970s, PA 75 was extended north to the new US 22/US 322 freeway on a road that was widened into a divided highway by 1990.