U.S. Route 1 in Pennsylvania

U.S. Route 1
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 (130.222 km)
Major junctions
South end	US 1 at Maryland border near Nottingham
	Chadds Ford; I-476 near Media; PA 3 in Havertown; US 30 in Wynnewood/Philadelphia; I-76 in Philadelphia; US 13 in Philadelphia; PA 63 in Philadelphia; ; Bensalem; I-295 near Langhorne; US 13 in Falls Township;
North end	US 1 at New Jersey border on Trenton–Morrisville Toll Bridge 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 1
	← PA 1

U.S. Route 1 (US 1) is a major north–south

Interstate 76 (I-76, Schuylkill Expressway) and the Roosevelt Expressway in Philadelphia, and between Bensalem Township

and the New Jersey state line.

Route description

Chester County

US 1 enters Pennsylvania from

Big Elk Creek before it heads into Upper Oxford Township, where it has a partial cloverleaf interchange with PA 896.^[2]^[3]

The freeway crosses Big Elk Creek into

East Branch Red Clay Creek and passes near more development, coming to the northern terminus of the freeway at a southbound exit and northbound entrance with the Baltimore Pike.^[2]^[3]

At this point, US 1 continues northeast along the four-lane divided East Baltimore Pike into East Marlborough Township and passes businesses, widening to six lanes. Along this divided highway stretch of US 1, a few intersections are controlled by jughandles. The road narrows to four lanes and passes near homes and businesses, before coming to an interchange that provides access to Longwood Gardens and the Brandywine Valley Tourism Information visitor center to the north of the road, at which point it crosses back into Kennett Township. A short distance later, US 1 comes to an intersection with PA 52, at which point that route heads onto the East Baltimore Pike concurrent with US 1. The road heads into wooded areas with some homes and businesses, at which point PA 52 splits in the community of Hamorton to continue southeast toward the city of Wilmington, Delaware. The route turns to the northeast and crosses into Pennsbury Township, where the official name becomes Baltimore Pike. The road curves to the east again and passes through more woodland with some residential and commercial development, crossing an East Penn Railroad line at-grade before heading across the Brandywine Creek.^[2]^[3]

Delaware County

Upon crossing the Brandywine Creek, US 1 continues into

West Branch Chester Creek.^[2]^[4]

The route curves to the east and enters the borough of Chester Heights, running past businesses before heading into forested areas, where it passes north of the corporate headquarters of Wawa. The road turns northeast and crosses the Chester Creek into Middletown Township. The route passes under SEPTA's West Chester Branch northwest of Wawa station, which serves as the terminus of SEPTA's Media/Wawa Line. US 1 heads through the community of Wawa and continues into commercial areas, coming to an intersection with PA 452 in the community of Lima. Following this, the route continues east and passes between the Promenade at Granite Run residential and retail center to the north and Riddle Hospital to the south, coming to an interchange with PA 352. A short distance later, US 1 splits from Baltimore Pike at an interchange by heading northeast onto the Media Bypass, a four-lane freeway which bypasses the borough of Media to the north. The Baltimore Pike interchange is a northbound exit and southbound entrance that also features a U-turn ramp from northbound US 1 to southbound US 1. US 1 runs through wooded areas with some nearby homes and crosses Ridley Creek into Upper Providence Township. The freeway continues northeast before it curves to the east and comes to a diamond interchange at PA 252 in the community of Rose Tree. The route runs through more wooded areas with some homes and reaches a southbound exit and northbound entrance at State Road. Following this, US 1 crosses Crum Creek into Marple Township and comes to a three-level diamond interchange at I-476.^[2]^[4]

Past the I-476 interchange, US 1 continues east and heads into business areas, where the freeway ends and the route becomes four-lane divided South State Road, passing south of a shopping center. The route crosses into

center left-turn lane and passes between a shopping center to the northwest and residences to the southeast. The road crosses Naylors Run and Darby Road/Lansdowne Avenue before it reaches an intersection with PA 3 a short distance later. From here, US 1 becomes a four-lane undivided road and continues northeast past residences and a few businesses before passing northwest of a golf course. The route passes over SEPTA's Norristown High Speed Line south of Township Line Road station before it comes to a bridge over Cobbs Creek.^[2]^[4] Upon crossing Cobbs Creek, US 1 runs along the border between Haverford Township in Delaware County to the northwest and the city of Philadelphia in Philadelphia County to the southeast, passing between homes to the northwest and a golf course to the southeast.^[2]^[4]^[5]

City Avenue

The route becomes known as City Avenue and colloquially as City Line Avenue and forms the border between

Lancaster Avenue). Past this intersection, the route runs between St. Charles Borromeo Seminary to the northwest and residential development to the southeast before it passes over Amtrak's Keystone Corridor railroad line north of Overbrook station, which serves SEPTA's Paoli/Thorndale Line. The road continues past mixed residential development before heading through the campus of Saint Joseph's University. US 1 becomes lined with businesses as it passes between the Lower Merion Township community of Bala Cynwyd to the northwest and the Philadelphia neighborhood of Wynnefield to the southeast. The route comes to a bridge over SEPTA's Cynwyd Line south of Bala station before it reaches an intersection with the eastern terminus of PA 23 and Conshohocken Avenue. The road passes more commercial development as it heads southeast of the Bala Cynwyd Shopping Center and crosses Belmont Avenue, where it passes north of the Belmont Reservoir. US 1 becomes a four-lane divided highway and heads past businesses and office buildings, passing between the former WCAU studios to the northwest and the WPVI-TV studios to the southeast prior to the Monument Road intersection.^[2]^[5]^[6]

Gustine Lake Interchange

US 1 comes to an interchange with

Kelly Drive and US 1 heads southeast concurrent with I-76 on the Schuylkill Expressway, an eight-lane freeway that fully enters Philadelphia and runs between the West Falls Yard on Norfolk Southern Railway's Harrisburg Line and the river to the north and wooded areas of Fairmount Park to the south.^[2]^[5]

Roosevelt Boulevard

US 1 splits from I-76 by heading northeast on the Roosevelt Expressway, a six-lane freeway. Immediately after the split, the route heads onto the Twin Bridges, which carry the route over Norfolk Southern Railway's Harrisburg Line, a wye connection between the Harrisburg Line and CSX Transportation's Trenton Subdivision railroad line that uses the Philadelphia and Reading Railroad, Schuylkill River Viaduct; Martin Luther King Jr. Drive; the Schuylkill River Trail; the Schuylkill River; Kelly Drive; and Ridge Avenue. From here, the freeway heads into the East Falls neighborhood and passes near urban residential and commercial development, coming to a southbound exit and northbound entrance serving Ridge Avenue and Kelly Drive. US 1 crosses under SEPTA's Manayunk/Norristown Line and continues through developed areas, heading to the southeast of Queen Lane Reservoir. The route comes to a southbound exit and entrance that serves Fox and Henry avenues. The freeway passes over SEPTA's Chestnut Hill West Line as it comes to an interchange with Wissahickon Avenue, which also provides access to Germantown Avenue and Hunting Park Avenue, in the Nicetown–Tioga neighborhood. Here, the freeway narrows to two northbound lanes while retaining three southbound lanes. US 1 heads into North Philadelphia and crosses through Fernhill Park before it curves east and comes to a bridge over SEPTA's Main Line and CSX Transportation's Trenton Subdivision north of SEPTA's Roberts Yard and south of Wayne Junction station serving the SEPTA line. The route continues along the bridge over urban neighborhoods before it descends into a cut as a four-lane freeway, with a northbound exit and southbound entrance serving PA 611 (Broad Street), provided via frontage roads (St. Lukes Street northbound and Cayuga Street southbound). The freeway passes under PA 611 (Broad Street), which also carries SEPTA's Broad Street Line subway. Past this interchange, US 1 comes to a southbound exit and northbound entrance with US 13 (Roosevelt Boulevard) north of the Hunting Park neighborhood, where the Roosevelt Expressway ends.^[2]^[5]

At this point, US 1 becomes concurrent with US 13 on Roosevelt Boulevard, a wide

traffic circle at Cheltenham Avenue, Castor Avenue, and the southern terminus of PA 232, which runs along Oxford Avenue. The express lanes pass under Oxford Circle. Past the circle, Roosevelt Boulevard continues east-northeast through residential areas.^[2]^[5]

The road crosses Bustleton Avenue and US 13 splits from US 1 by heading southeast on the

Nazareth Hospital before it heads into wooded areas of Pennypack Park, where it passes over Pennypack Creek and the parallel Pennypack Trail.^[2]^[5]

After passing through the park, US 1 heads through residential areas, before running past businesses and coming to an intersection with the southern terminus of PA 532 at Welsh Road. The boulevard becomes lined with more commercial development and crosses Grant Avenue, which provides access to Northeast Philadelphia Airport. The route runs between a residential neighborhood to the northwest and a shopping center to the southeast before it passes northwest of Northeast Philadelphia Airport and heads past more commercial establishments, running parallel to an East Penn Railroad line to the east of the road. After this, the road comes to an intersection with PA 63 at Red Lion Road. At this point, PA 63 becomes concurrent with US 1 on Roosevelt Boulevard, and the boulevard heads northeast through areas of businesses and industrial parks. After intersecting Byberry Road, the concurrency with PA 63 ends at an unfinished cloverleaf interchange with Woodhaven Road, where PA 63 heads southeast onto the Woodhaven Road freeway. US 1 continues northeast past industrial parks, intersecting Southampton Road, before it passes to the west of Benjamin Rush State Park. At this point, the local and express lanes merge, and the route becomes a divided highway with three northbound lanes and four southbound lanes that crosses Poquessing Creek.^[2]^[5]

Bucks County

Upon crossing the Poquessing Creek, US 1 leaves Philadelphia and enters

Morrisville Line and reaches a cloverleaf interchange with I-295.^[2]^[7]

Past the I-295 interchange, US 1 heads east and runs to the north of an industrial park. The route becomes the border between

Delaware Canal and Conrail Shared Assets Operations (CSAO)'s Penn Warner Lead railroad line before it comes to an interchange with Pennsylvania Avenue that provides access to Morrisville. Past this interchange, US 1 comes to a southbound toll plaza before it passes over the CSAO line and the Delaware River on the Trenton–Morrisville Toll Bridge, where it leaves Pennsylvania for New Jersey and heads into the city of Trenton.^[2]^[7]

History

In Chester County, before the US 1 expressway was built there, US 1 continued up the Baltimore Pike (which now has a dead-end section in Nottingham where northbound US 1 veers away from the Baltimore Pike alignment onto the expressway). In Oxford, US 1 northbound ran on South 3rd Street, then turned right on Market Street (PA 472) (North 3rd Street is the beginning of PA 10), then very quickly turned left onto Lincoln Street, and, after leaving Oxford, the road ran by Lincoln University. Approaching Avondale, the Baltimore Pike traffic bent southeast along Pennsylvania Avenue (PA 41), then the Baltimore Pike split off after Avondale. In the town of Kennett Square, northbound US 1 ran along Cypress Street while southbound US 1 ran along State Street, and those streets were marked east to west, not north to south. After Kennett Square, the US 1 expressway ends and its traffic merges onto the Baltimore Pike.

Except for the southernmost part of the Baltimore Pike at Nottingham, the Chester County part of old US 1 is still driveable. There is the deadend mentioned above; also, a small part of the Baltimore Pike is permanently blocked by the Herr's Snacks company property.

Between

Oakford (Neshaminy Creek

) and Philadelphia.

From the

Lancaster Turnpike, where the Lincoln Highway headed west along US 30, the Lincoln Highway originally headed east along Market Street to Penn Square around Philadelphia City Hall, where it turned north onto Broad Street. (Prior to the building of Roosevelt Boulevard, the main road followed Frankford Avenue to Bustleton Avenue from Center City

.)

A bypass was added around Center City (in addition to the route through Center City) in 1924, using Hunting Park, Ridge, and City avenues.^[8]^[9] This alignment is now used by US 1, except that Hunting Park and Ridge avenues are now bypassed by the Roosevelt and Schuylkill expressways.

From Broad Street, the Lincoln Highway then headed north on the Roosevelt Boulevard. By 1914, the Roosevelt Boulevard was completed to Rhawn Street, and the Lincoln Highway turned off Roosevelt Boulevard there to reach Bustleton Avenue. The old alignment splits from Bustleton Avenue at Haldeman Avenue and then follows Roosevelt Boulevard. (A short piece of Old Bustleton Avenue southwest of Welsh Road was used, crossing Pennypack Creek east of the current bridge.^[9])

A 1920 extension took the boulevard to Welsh Road, allowing traffic to turn off Bustleton Avenue there (that route is still PA 532), and a 1920s extension took it to the intersection with Old Lincoln Highway just north of the Poquessing Creek bridge. North of there, the present US 1 was completed in 1933 to the south end of the 1923 Langhorne bypass and in 1938 to Bellevue Avenue (PA 413) in downtown Langhorne.^[9]

From near Hornig Road in Northeast Philadelphia, the old alignment heads through woods, closed to traffic, paralleling powerlines, after which it was upgraded on the spot to become Roosevelt Boulevard. The original route is then gated at an 1805 stone bridge across Poquessing Creek at the Philadelphia city line, just before crossing Roosevelt Boulevard. After crossing Street Road (PA 132), the Old Lincoln Highway then becomes one-way southbound past the Bristol Road intersection and crosses the Neshaminy Creek. (This bridge itself was built in 1921 to replace a covered bridge just to the west.^[9])

The present route of Lincoln Highway and

freeway crosses just to the east. It then headed onto Maple Avenue (PA 213

) to pass through Langhorne. Past Langhorne, the original route used what is presently known as Lincoln Highway (US 1 Bus.).

At Fallsington, the original road crossed the Pennsylvania Railroad's Trenton Cutoff on a bridge just east of the present bridge, built on a reverse curve to shorten the span. It used Trenton Road and Main Street from the bridge to the intersection with Woolston, where Main Street is now cut. In 1917, an underpass under the railroad was built to the west on Woolston Drive; this became the main route by 1924.^[9]^[10]

It then headed toward Morrisville, where it first crossed the Delaware River the Calhoun Street Bridge, running along Trenton Avenue to Fallsington. In 1920, it was moved to the Lower Trenton Bridge, passing through downtown Morrisville.

On November 21, 1988, an act of the

U.S. House of Representatives and pushed for the construction of the US 1 freeway in Chester County.^[14] On January 19, 2012, the section of US 1 in Bucks County between Philadelphia and the Delaware River was designated the Detective Christopher Jones Memorial Highway after a Middletown Township police officer who was killed while conducting a traffic stop along the highway when two cars collided and hit his police car, which struck him.^[15]

On October 29, 2018, work began on a project to reconstruct and widen the portion of US 1 between Old Lincoln Highway and the Rockhill Drive interchange in Bensalem Township, with completion in 2022. The project widened US 1 to a six-lane road from PA 132 to north of the Pennsylvania Turnpike, upgraded the PA 132 and Pennsylvania Turnpike interchanges, and rebuilt bridges.[16]^[17] On March 22, 2021, construction began to rebuild and widen US 1 between Rockhill Drive in Bensalem Township and north of the US 1 Bus. interchange in Middletown Township, with completion expected in mid-2026.^[18]

Major intersections

All exits are unnumbered.

County	Location	mi^[1]	km	Destinations	Notes
Baltimore	Continuation into Maryland
	0.748	1.204	Southern end of freeway section
	2.092	3.367	PA 272 – Nottingham
	Oxford	5.095	8.200	PA 472 – Quarryville, Oxford
	Lower Oxford Township	7.126	11.468	PA 10 – Cochranville, Oxford
	New London, Russellville	Access to Lincoln University
	Penn Township	12.497	20.112	PA 796 – Jennersville
	London Grove Township	15.024	24.179	PA 841 – West Grove
	London Grove Township	16.336	26.290	PA 41 – Avondale, Chatham
	New Garden Township	18.359	29.546	Toughkenamon, London Grove	Access via Newark Road
	East Marlborough Township	21.177	34.081	PA 82 – Unionville, Kennett Square
	Kennett Township	22.534	36.265	Kennett Square	Southbound exit and northbound entrance via Baltimore Pike
		22.534	36.265	Northern end of freeway section
		23.791	38.288	Longwood Gardens	Interchange; access via Longwood Road
		23.911	38.481	PA 52 north (Lenape Road) – West Chester	Southern terminus of concurrency with PA 52
		24.587	39.569	PA 52 south (Kennett Pike) – Wilmington	Northern terminus of concurrency with PA 52
Chadds Ford–Concord township line	30.665	49.351	US 202 / US 322 west (Wilmington-West Chester Pike) – West Chester, Wilmington, DE	Southern terminus of concurrency with US 322
	I-95 – Chester	Northern terminus of concurrency with US 322
	Middletown Township	36.956	59.475	PA 452 (Pennell Road) – Frazer, Marcus Hook
		37.788	60.814	PA 352 (Middletown Road) – Chester, Frazer, Gradyville	Interchange; access to Penn State Brandywine
		37.922	61.030	Southern end of freeway section
		37.922	61.030	Baltimore Pike – Media	Northbound exit and southbound entrance
	Newtown Square	Access to Delaware County Community College
	Newtown Square	41.131	66.194	State Road	Southbound exit and northbound entrance
	I-476 – Chester, Plymouth Meeting	Three-level diamond interchange; exit 5 on I-476
	I-476 – Chester, Plymouth Meeting	42.212	67.934	Northern end of freeway section
	Springfield Township	42.405	68.244	PA 320 (Sproul Road) – Shopping Centers	Interchange
	Haverford–Upper Darby township line	46.279	74.479	PA 3 (West Chester Pike)
Philadelphia line	48.820	78.568	US 30 (Lancaster Avenue)
	50.534	81.327	PA 23 west (Conshohocken State Road)	Eastern terminus of PA 23
	51.735	83.259	Southern end of freeway section
	51.735	83.259	I-76 west / Lincoln Drive – Valley Forge	Southern terminus of concurrency with I-76; exit 339 on I-76
Central Philadelphia	Northern terminus of concurrency with I-76; exit 340B on I-76
			Twin Bridges over the Schuylkill River
	52.627	84.695	Kelly Drive	Southbound exit and northbound entrance
	53.241	85.683	Fox Street / Henry Avenue	Southbound exit and entrance; access to Thomas Jefferson University
	53.626	86.303	Wissahickon Avenue south / Hunting Park Avenue	Northbound exit and southbound entrance; access to Thomas Jefferson University
	53.626	86.303	Wissahickon Avenue north / Germantown Avenue	Northbound exit and southbound entrance
	54.899	88.351	PA 611 (Broad Street)	Northbound exit via St. Lukes Street and southbound entrance via Cayuga Street
	55.037	88.573	US 13 south (Hunting Park Avenue) / Broad Street (PA 611)	Southern terminus of concurrency with US 13; southbound exit and northbound entrance
	55.407	89.169	Northern end of freeway section
	58.600– 58.670	94.308– 94.420	Oxford Circle ); southern terminus of PA 232
	59.383	95.568	US 13 north (Robbins Street) – Tacony–Palmyra Bridge	Northbound one-way pair; northern terminus of concurrency with US 13 northbound
	59.469	95.706	US 13 south (Levick Street)	Southbound one-way pair; northern terminus of concurrency with US 13 southbound
	60.549	97.444	I-95	Interchange
	61.696– 61.745	99.290– 99.369	Holme Avenue / Solly Avenue	Interchange (former Pennypack Circle)
	62.900	101.228	PA 532 north (Welsh Road)	Southern terminus of PA 532
	64.648	104.041	PA 63 west (Red Lion Road)	Southern terminus of concurrency with PA 63
	65.987	106.196	I-95	Interchange; northern terminus of concurrency with PA 63
Bucks	Bensalem Township	68.074	109.554	PA 132 (Street Road)	Interchange; access to Parx Casino and Racing
		68.344	109.989	Southern end of freeway section
		68.344	109.989	toll-by-plate
		68.891	110.869	Rockhill Drive
	US 1 Bus. north – Penndel	Northbound exit and southbound entrance; southern terminus of US 1 Bus.
	US 1 Bus. north – Penndel	70.091	112.801	Highland Avenue / Old Lincoln Highway	Highland Avenue signed northbound; Old Lincoln Highway signed southbound
	Langhorne Manor	72.214	116.217	Hulmeville Avenue	Northbound exit and southbound entrance
	Langhorne Manor–Middletown Township line	72.245	116.267	To PA 413 (Bellevue Avenue)	Access via South Bellevue Avenue and East Gillam Avenue
	Middletown Township	72.923	117.358	PA 213 (Maple Avenue)
		74.725– 74.749	120.258– 120.297	Philadelphia	Cloverleaf interchange; exit 5 on I-295
		75.508	121.518	Sesame Place
	US 1 Bus. south – Fairless Hills	Northern terminus of US 1 Bus.; only signed as Fairless Hills northbound
		78.874	126.935	US 13 south – Tullytown, Bristol	Northern terminus of US 13
		78.874	126.935	Yardley	Southbound exit only; access via Pine Grove Road
		79.298	127.618	PA 32 north – Morrisville	Northbound exit and southbound entrance; southern terminus of PA 32; former US 1 Bus.
	Morrisville	80.516	129.578	Pennsylvania Avenue – Morrisville
Delaware River		80.916	130.222	Trenton–Morrisville Toll Bridge (southbound toll; cash or E-ZPass)
Delaware River		80.916	130.222	US 1 north (Trenton Freeway) – Trenton, New York	Continuation into New Jersey
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Electronic toll collection Incomplete access Tolled