Interstate 180 (Pennsylvania)

Interstate 180
I-180 highlighted in red
Route information
Auxiliary route of I-80
Maintained by PennDOT
Length	28.85 mi[1] (46.43 km)
Existed	January 1984[2]–present
Major junctions
West end	Future I-99 / US 15 / US 220 in Williamsport
Major intersections	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
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

Interstate 180 (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.

Route description[]

Looking west from the Carl E. Stotz Memorial Little League Bridge in Williamsport

I-180 begins along the banks of the West Branch Susquehanna River in Williamsport, at an interchange with U.S. Route 15 (US 15) and US 220. The highway begins running concurrently along these routes.

I-180 westbound just west of Exit 5 in Delaware Township

At exit 27A, US 15 leaves the overlap running south across the Carl E. Stotz Memorial Little League Bridge, and I-180 continues eastward, still concurrent with US 220 northbound. From there, I-180 runs along the West Branch Susquehanna River until the highway reaches the eastern suburbs of Williamsport, where US 220 leaves the Interstate via exit 15.

From US 220 to the eastern terminus, I-180 is aligned north–south, though the highway is signed east–west. I-180 terminates at an interchange with I-80, and the freeway continues as PA 147.

History[]

I-180 was designated in January 1984 and was signed concurrently with US 220 between US 15 in Williamsport and Pennsdale and replaced PA 147 between US 220 in Pennsdale and I-80 near Milton.^[2]

Exit list[]

County	Location	mi[3]	km	Exit	Destinations	Notes
Lycoming	Williamsport			–	Future I-99 south / US 220 south to I-80 – Lock Haven	Continuation beyond western terminus
		28.84	46.41	29	Future I-99 north / US 15 north – Mansfield	West end of concurrency with US 15
		27.9	44.9	28	Maynard Street	Access to Pennsylvania College of Technology
		27.7	44.6	27B	Hepburn Street / Via Bella	Eastbound exit and westbound entrance; access to Lycoming College and Peter J. McGovern Little League Museum
		26.8	43.1	27A	US 15 south (Market Street) – Lewisburg	East end of concurrency with US 15; single-point urban interchange
		26.5	42.6	26	Basin Street / Via Bella	Westbound exit and eastbound entrance; access to Lycoming College and Peter J. McGovern Little League Museum
	Loyalsock	25.3	40.7	25	Commerce Park, Faxon
		24.0	38.6	23	Third Street / Warrensville Road – Warrensville, Montoursville	Signed as exits 23B (Warrensville Road) and 23A (Third Street) eastbound; access to Williamsport Regional Airport
	Montoursville	21.7	34.9	21	PA 87 north (Loyalsock Avenue)	PA 87 begins north, Loyalsock Avenue south; access to Williamsport Regional Airport
		20.4	32.8	20	Fairfield Road
	Muncy Township	16.9	27.2	17	Lycoming Mall Road
		15.5	24.9	15	US 220 north – , Pennsdale	East end of US 220 concurrency
	Muncy Creek Township	12.8	20.6	13	PA 405 – Muncy, Hughesville
		10.6	17.1	10	Main Street	Westbound exit and eastbound entrance
Northumberland	Delaware Township	5.6	9.0	5	PA 54 – Turbotville
		1.1	1.8	1	McEwensville, Watsontown
	Turbot Township	0	0.0		I-80 – Bellefonte, Bloomsburg	I-80 exit 212
				–	PA 147 south – Milton	Continuation beyond eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

See also[]

•  U.S. Roads portal
•  Pennsylvania portal

References[]

External links[]

Route map:

Media related to Interstate 180 (Pennsylvania) at Wikimedia Commons