U.S. 1

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U.S. 1 crosses Southeastern Pennsylvania from rural Chester County in West Nottingham township to the Trenton Morrisville Toll Bridge spanning the Delaware River. U.S. 1 serves regional traffic southwest to Bel Air and Baltimore, Maryland and from Northeast Philadelphia to Trenton, New Jersey.

U.S. 1 Pennsylvania Guides

Business Routes

Through Chester County, U.S. 1 follows the Kennett Oxford Bypass, a freeway arcs northeast around the boroughs of Oxford, West Grove, Avondale and Kennett Square. The former alignment is Baltimore Pike, which U.S. 1 overtakes east from East Marlborough township to Pennsbury and the Delaware County line.

Within Delaware County, U.S. 1 continues along Baltimore Pike to Chadds Ford and U.S. 202/322 at Painters Crossroads. U.S. 322 overlaps with U.S. 1 for one mile to Conchester Highway en route to Chester. U.S. 1 stays to the north from Concordville to the borough of Chester Heights along a suburban arterial to Granite Run Mall at Lima.

East of PA 362, U.S. 1 shifts onto the Media Bypass, a freeway circumventing the borough of Media north through Upper Providence township and Interstate 476. Following State Road and Township Line Road, U.S. 1 continues through older suburban areas from Springfield township to Upper Darby and Haverford townships.

U.S. 1 runs along the Montgomery and Philadelphia County lines on City Avenue from the Overbrook section of Philadelphia and Penn Wynne to Bala Cynwyd and I-76 along the Schuylkill Expressway. U.S. 1 overlaps with I-76 to make the connection with the Roosevelt Expressway spanning the Schuylkill River.

The Roosevelt Expressway heads northeast between the East Falls, Nicetown and Germantown neighborhoods in Philadelphia to U.S. 13 at Hunting Park. U.S. 1/13 overlap along Roosevelt Boulevard, an urban arterial with four roadways. U.S. 13 branches east from U.S. 1 at Robbins and Levick Streets near Mayfair. U.S. 1 continues to Northeast Philadelphia to Bustleton, Normandy where it overlaps with PA 63, and Byberry at Benjamin Rush State Park.

Leaving Philadelphia, U.S. 1 upgrades to a freeway across southern Bucks County. U.S. 1 arcs northeast from Ben Salem township and the Pennsylvania Turnpike (I-276) to Langhorne, Oxford Valley and Morrisville. The bridge into New Jersey is tolled in the southbound direction.

US 1 at PA 472 - Oxford, PA
US 1 at PA 472 - Oxford, PA

U.S. 1 (Kennett Oxford Bypass) from the PA 472 (Lancaster Avenue) overpass in Oxford. May 2000

The initial portion of the Kennett Oxford Bypass opened to traffic between PA 41 in London Grove township and Baltimore Pike northeast of Kennett Square. The realignment of U.S. 1 onto the short freeway was approved by the American Association of State Highway Officials (AASHO) on July 5, 1966. The remaining 16.05 miles of the bypass southwest to the Maryland state line was approved as the new alignment of U.S. 1by AASHO on November 7, 1970.

The Media Bypass was completed in 1959. U.S. 1 was realigned northward from Baltimore Pike through Media onto the freeway from PA 352 at Black Horse to PA 320 near Marple. Additionally U.S. 1 Bypass, which ran along PA 320 north from Baltimore Pike at Swarthmore to the Media Bypass, and along State Road and Township Line Road east to Philadelphia, was decommissioned. AASHO approved the realignment of U.S. 1 along the Media Bypass and over former U.S. 1 Bypass from Springfield township northeast on October 10, 1959.

The limited access highway along U.S. 1 between Langhorne and Langhorne Manor east to U.S. 13 near Morrisville was completed in 1986. The American Association of State Highway and Transportation Officials (AASHTO) approved the relocation of U.S. 1 onto the bypass on October 8, 1986. Further east at the Delaware River, U.S. 1 moved southward from the Lower Trenton Bridge and Bridge Street through Morrisville onto the Trenton Morrisville Toll Bridge and connecting freeway. Signing work for U.S. 1 along the four lane highway and U.S. 1 Alternate on the former route in Bucks County was completed on January 4, 1954. Previous requests to AASHO from the Pennsylvania Department of Highways to both relocate U.S. 1 and establish U.S. 1 Alternate dated back to November 26, 1952.

U.S. 1 scenes
PA 352 (Middletown Road) south meets U.S. 1 at a grade separated intersection near Black Horse and the Media Bypass. 08/15/04
State Road (SR 1008) winds northeast from PA 252 (Providence Road) and N Monroe Street in Media to a northbound entrance ramp for U.S. 1 (Media Bypass) in Upper Providence township. 12/27/16
Old Lincoln Highway spurs south from U.S. 1 and SR 2037 to Poquessing Creek. This view looks northward at the signal with U.S. 1 just east of the Philadelphia city line. 10/03/04
The original Lincoln Highway crossed Poquessing Creek on the Byberry-Bensalem Turnpike Bridge at the Bucks / Philadelphia County line. 10/03/04
The stone arch bridge crossing Poquessing Creek on the Lincoln Highway was built in 1805 and bypassed in 1921.2 10/03/04
The Byberry-Bensalem Turnpike Bridge north from Benjamin Rush State Park. 10/03/04
Rockhill Drive (SR 2044) connects with U.S. 1 (Lincoln Highway) at a parclo interchange adjacent to Neshaminy Mall in Bensalem township. 12/19/17
Section RC2 of the U.S. 1 Improvements Project replaces the exchange joining Rockhill Drive with Lincoln Highway with a parclo A2 interchange. 12/19/17
Redesign of the loop ramp for U.S. 1 (Lincoln Highway) south will serve both directions of Rockhill Drive (SR 2044). 12/19/17
Section RC2 of the U.S. 1 Improvements Projects costs $115 million with work scheduled from 2021 to Fall 2025. 12/19/17
The south end of PA 32 is located at the wye interchange joining Bridge Street west with U.S. 1 (Lincoln Highway) just outside the borough of Morrisville. 12/19/17
Part of the historic Lincoln Highway, the Lower Trenton Bridge spanning the Delaware River between Morrisville and Trenton, New Jersey was a part of U.S. 1 until 1954. 06/10/00
The Lower Trenton Bridge was built in 1928 and rehabilitated in 1969 and 2005. 1,021 feet in length, the through truss bridge accommodates two lanes of traffic on a steel deck.1 06/10/00

  1. Lower Trenton Bridge (1928). Bridgehunter.com.
  2. Byberry-Bensalem Turnpike Bridge. Bridgehunter.com

Photo Credits:

  • 06/10/00 by AARoads.
  • 08/15/04 by AARoads.
  • 10/03/04 by AARoads.
  • 12/27/16 by AARoads and I.C. Ligget.
  • 12/19/17 by AARoads.

Connect with:
Interstate 76
Interstate 276 / Pennsylvania Turnpike
Interstate 295
Interstate 476
U.S. 13
U.S. 30
Route 10
Route 41
Route 63
Route 82
Route 132
Route 272
Route 413
Route 472
Route 796
Route 896
Route 841

Page Updated 01-24-2021.

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