Interstate 180 (Pennsylvania)

Interstate 180
Interstate 180
	I-180 highlighted in red
Route information
	Auxiliary route of I-80
	Maintained by PennDOT
Length	28.84 mi (46.41 km)
Existed	January 1984–present
NHS	Entire route
Major junctions
West end	I-99 / US 15 / US 220 in Williamsport
	US 15 in Williamsport; PA 87 in Montoursville; US 220 near Pennsdale; PA 405 near Muncy;
East end	I-80 / PA 147 near Milton
Location
Country	United States
State	Pennsylvania
Counties	Lycoming, Northumberland
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Pennsylvania State Route System; Interstate; US; State; Scenic; Legislative;

Interstate 180 (I-180) is a spur highway in Pennsylvania that connects Williamsport to I-80 near Milton. The length of the highway is 28.84 miles (46.41 km). It was also the designation of present-day I-176 between Morgantown and Reading, when the Pennsylvania Turnpike carried the "I-80S" designation in the 1960s. It is signed as an east–west route for its entire length, even though half of the route runs north–south.