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Interstate 180 (Pennsylvania): Wikis


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Interstate 180 shield
Interstate 180
Auxiliary route of the Interstate Highway System
Maintained by PennDOT
Length: 28.85 mi[1] (46.43 km)
Formed: 1984
West end: Future plate blue.svg
I-99.svg US 15.svg US 220.svg US 15/US 220 in Williamsport, PA
East end: I-80 / PA 147 near Milton, PA
Pennsylvania State Routes
< PA 179 PA 181 >
Minor - Legislative

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.

Route description

I-180 begins along the banks of the West Branch Susquehanna River in Williamsport, at an interchange with U.S. Route 15 and U.S. Route 220. The highway begins its signage, concurrent along these routes.

At exit 27A, US 15 leaves the overlap running south across the Market Street 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 interchanging Interstate 80 and the freeway continues as Pennsylvania Route 147.

Exit list

County Location Mile # Destinations Notes
Lycoming Williamsport 29 US 15 N — Mansfield Freeway continues as US 220 south for 5 miles (8.0 km) west
28 Maynard Street Pennsylvania College of Technology
27B Via Bella, Hepburn Street Exit eastbound only, entrance westbound only
27A US 15 S — Lewisburg ·
Market Street
Single-point urban interchange
26 Via Bella, Basin Street Exit westbound only, entrance eastbound only
Loyalsock 25 Commerce Park, Faxon
23A Warrensville, Montoursville Eastbound only
23B East Third Street Eastbound, Williamsport Regional Airport
23 East Third, Warrensville Westbound only, supplementary west-on from Broad Street
Montoursville 21 PA 87 PA 87 begins north, Loyalsock Avenue south
20 Fairfield Road
Muncy Township 17 Lycoming Mall
15 US 220 n – Pennsdale
Muncy Creek Township 13 PA 405Muncy, Hughesville
10 South Main Street Exit westbound only, entrance eastbound only
Northumberland Delaware Township 5 PA 54Turbotville
1 McEwensville, Watsontown
Turbot Township I-80Bellefonte, Bloomsburg Freeway continues as PA 147 south for 7 miles (11 km)




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