Interstate 180 (Pennsylvania)

Interstate 180
Route information
Auxiliary route of I-80
Maintained by PennDOT
Length:	28.85 mi (46.43 km)
Existed:	1984 – present
Major junctions
West end:	Future I‑99 / US 15 / US 220 in Williamsport, PA
	US 15 in Williamsport PA 87 in Montoursville US 220 near Pennsdale PA 405 near Muncy
East end:	I-80 / PA 147 near Milton, PA
Location
Counties:	Lycoming, Northumberland
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Pennsylvania State Route System Interstate US State Scenic Byways Legislative ← PA 179 PA 180 →

US 15 in Williamsport
PA 87 in Montoursville
US 220 near Pennsdale

Interstate 180 (abbreviated I-180) is a spur highway that connects Williamsport, Pennsylvania to Interstate 80 near Milton, Pennsylvania. The length of the highway is 28.85 miles (46.43 km). It was also the designation of present-day Interstate 176 between Morgantown, Pennsylvania 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.

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