Interstate 81 in Pennsylvania

Interstate 81
Interstate 81
American Legion Memorial Highway
	I-81 highlighted in red
Route information
	Maintained by PennDOT
Length	232.76 mi (374.59 km)
Existed	August 14, 1957–present
NHS	Entire route
Major junctions
South end	I-81 at the Maryland state line in State Line
	US 30 in Chambersburg; PA 581 near Camp Hill; US 22 / US 322 in Harrisburg; I-83 / US 322 in Colonial Park; I-78 in Lickdale; I-80 near Hazleton; PA 309 in Wilkes-Barre; I-84 / I-380 / US 6 in Dunmore; ; I-476 Toll / Penna Turnpike NE Extension / US 6 / US 11 near Scranton;
North end	I-81 at the New York state line in Great Bend
Location
Country	United States
State	Pennsylvania
Counties	Franklin, Cumberland, Dauphin, Lebanon, Schuylkill, Luzerne, Lackawanna, Susquehanna
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Pennsylvania State Route System; Interstate; US; State; Scenic; Legislative;

Interstate 81 (I-81) is a north–south Interstate Highway, stretching from I-40 in Dandridge, Tennessee, northeast to Fishers Landing, New York on Wellesley Island, at the Canada–United States border. In Pennsylvania, I-81 runs for 232.76 miles (374.59 km) from the Maryland state line northeast to the New York state line near Hallstead and is called the American Legion Memorial Highway. The Interstate enters the state near the borough of Greencastle, serving the boroughs of Chambersburg and Carlisle, before reaching Harrisburg, the capital. After that, it climbs into the Pocono Mountains to run through the Wyoming Valley, then exits into New York. It is the longest north–south Interstate in Pennsylvania.