U.S. Route 1 in Pennsylvania

U.S. Route 1
Map of southeast Pennsylvania with US 1 in red and alternate routes in blue
Route information
Maintained by PennDOT and DRJTBC
Length	80.916 mi[1] (130.222 km)
Major junctions
South end	US 1 at Maryland border near Nottingham
Major intersections	US 202 / US 322 in Chadds Ford I-476 near Media PA 3 in Havertown US 30 in Wynnewood/Philadelphia I-76 / Lincoln Drive / Kelly Drive in Philadelphia US 13 in Philadelphia PA 63 in Philadelphia I-276 / Penna Turnpike in Bensalem I-295 near Langhorne US 13 / US 1 Bus. in Falls Township
North end	US 1 at New Jersey border in Morrisville
Location
Country	United States
State	Pennsylvania
Counties	Chester, Delaware, Montgomery, Philadelphia, Bucks
Highway system
United States Numbered Highway System List Special Divided Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 999 → PA 1

U.S. Route 1 (US 1) is a major north–south U.S. Route, extending from Key West, Florida, in the south to Fort Kent, Maine, at the Canada–United States border in the north. In the U.S. state of Pennsylvania, US 1 runs for 81 miles (130 km) from the Maryland state line near Nottingham northeast to the New Jersey state line at the Delaware River in Morrisville, through the southeastern portion of the state. The route runs southwest to northeast and serves as a major arterial road through the city of Philadelphia and for many of the suburbs in the Delaware Valley metropolitan area. South of Philadelphia, the road mostly follows the alignment of the Baltimore Pike. Within Philadelphia, it mostly follows Roosevelt Boulevard. North of Philadelphia, US 1 parallels the route of the Lincoln Highway. Several portions of US 1 in Pennsylvania are freeways, including from near the Maryland state line to Kennett Square, the bypass of Media, the concurrency with Interstate 76 (I-76, Schuylkill Expressway) and the Roosevelt Expressway in Philadelphia, and between Bensalem Township and the New Jersey state line.