Interstate 180 (Pennsylvania)
|Maintained by PennDOT|
|Length:||28.85 mi (46.43 km)|
|Existed:||1984 – present|
|West end:||Future I‑99 / US 15 / US 220 in Williamsport, PA|
|PA 405 near Muncy|
|East end:||I-80 / PA 147 near Milton, PA|
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.
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 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 interchanging Interstate 80 and the freeway continues as Pennsylvania Route 147.
|This section is empty. You can help by adding to it. (August 2012)|
This exit list is presented in a west-to-east order as the route is signed, despite exit numbering going east-to-west.
|Lycoming||Williamsport||–||US 220 south – Lock Haven||Continuation beyond western terminus|
|29||US 15 north – Mansfield|
|28||Maynard Street||Serves Pennsylvania College of Technology|
|27B||Via Bella, Hepburn Street||Eastbound exit and westbound entrance|
|27A||US 15 south (Market Street) – Lewisburg||Single-point urban interchange|
|26||Via Bella, Basin Street||Westbound exit and eastbound entrance|
|Loyalsock||25||Commerce Park, Faxon|
|23B||Warrensville, Montoursville||Eastbound exit|
|23A||East Third Street||Eastbound exit and entrance; Serves Williamsport Regional Airport|
|23||East Third Street, Warrensville||Westbound exit; Supplemental westbound entrance from Broad Street|
|Montoursville||21||PA 87 north (Loyalsock Avenue)||PA 87 begins north, Loyalsock Avenue south|
|Muncy Township||17||Lycoming Mall Road|
|15||US 220 north – Halls, Pennsdale||East end of US 220 overlap|
|Muncy Creek Township||13||PA 405 – Muncy, Hughesville|
|10||South Main Street|
|Northumberland||Delaware Township||5||PA 54 – Turbotville|
|Turbot Township||I-80 – Bellefonte, Bloomsburg|
|–||PA 147 south – Milton||Continuation beyond eastern terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi