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Pennsylvania Route 23 (PA 23) is an
state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...
in southeastern
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
. The route begins at PA 441 in Marietta and heads east to
U.S. Route 1 U.S. Route 1 or U.S. Highway 1 (US 1) is a major north–south United States Numbered Highway that serves the East Coast of the United States. It runs from Key West, Florida, north to Fort Kent, Maine, at the Canadian border, making ...
(US 1) at City Avenue on the border of
Lower Merion Township Lower Merion Township is a township in Montgomery County, Pennsylvania. It is part of the Philadelphia Main Line. The township's name originates with the county of Merioneth in north Wales. Merioneth is an English-language transcription of the ...
and
Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Sinc ...
. PA 23 begins at Marietta in Lancaster County and continues east to Lancaster, where it passes through the city on a
one-way pair A one-way pair, one-way couple, or couplet refers to that portion of a bi-directional traffic facilitysuch as a road, bus, streetcar, or light rail linewhere its opposing flows exist as two independent and roughly parallel facilities. Descripti ...
of streets and intersects US 222 and
US 30 U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route in the system of the United States Numbered Highways, with the highway traveling across the northern tier of the country. With a length of , it is the third longest ...
. East of Lancaster, the route runs through agricultural areas in
Pennsylvania Dutch Country The Pennsylvania Dutch Country ( Pennsylvania Dutch: ''Deitscherei'' Dutchery', also called Pennsylvania Dutchland ( Pennsylvania Dutch: ''Pennsylvania Deitschland'', german: Pennsylvania Deutschland), or simply the Dutch Country or Dutchland ( ...
, serving Leola, New Holland, and
Blue Ball Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when o ...
, the latter location where it crosses
US 322 U.S. Route 322 (US 322) is a long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926. A portion of it at one time was concurrent with ...
. PA 23 passes through the southern tip of
Berks County Berks County (Pennsylvania German: ''Barricks Kaundi'') is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 428,849. The county seat is Reading. The Schuylkill River, a tributary of the Delaware River, ...
and serves Morgantown, where a ramp provides access to
Interstate 176 Interstate 176 (I-176) is a spur route of eastern I-76 in Berks County, Pennsylvania. I-176, known locally as the Morgantown Expressway, travels from I-76 (Pennsylvania Turnpike) in Morgantown north to US Route 422 (US 422) in ...
(I-176). The route runs through northern
Chester County Chester County may refer to: * Chester County, Pennsylvania, United States * Chester County, South Carolina, United States * Chester County, Tennessee Chester County is a county located in the U.S. state of Tennessee. As of the 2020 census, th ...
and serves Elverson, Bucktown,
Phoenixville Phoenixville is a borough in Chester County, Pennsylvania, United States. It is located northwest of Philadelphia at the junction of French Creek and the Schuylkill River. It is in the Philadelphia metropolitan area. The population is 18,616 ...
, and
Valley Forge Valley Forge functioned as the third of eight winter encampments for the Continental Army's main body, commanded by General George Washington, during the American Revolutionary War. In September 1777, Congress fled Philadelphia to escape the ...
. PA 23 continues into Montgomery County and intersects
US 422 U.S. Route 422 (US 422) is a long spur route of US 22 split into two segments in the U.S. states of Ohio and Pennsylvania. The western segment of US 422 runs from downtown Cleveland, Ohio, east to Ebensburg, Pennsylvania. ...
in
King of Prussia The monarchs of Prussia were members of the House of Hohenzollern who were the hereditary rulers of the former German state of Prussia from its founding in 1525 as the Duchy of Prussia. The Duchy had evolved out of the Teutonic Order, a Roman C ...
and
US 202 U.S. Route 202 (US 202) is a spur route of US 2. It follows a northeasterly and southwesterly direction stretching from Delaware to Maine, also traveling through the states of Pennsylvania, New Jersey, New York, Connecticut, Mass ...
in
Bridgeport Bridgeport is the most populous city and a major port in the U.S. state of Connecticut. With a population of 148,654 in 2020, it is also the fifth-most populous in New England. Located in eastern Fairfield County at the mouth of the Pequonnoc ...
. The route follows the
Schuylkill River The Schuylkill River ( , ) is a river running northwest to southeast in eastern Pennsylvania. The river was improved by navigations into the Schuylkill Canal, and several of its tributaries drain major parts of Pennsylvania's Coal Region. It fl ...
to
West Conshohocken West Conshohocken is a borough in Montgomery County, Pennsylvania, United States. The population was 1,320 at the 2010 census. Its sister community is Conshohocken, located across the Schuylkill River. Montgomery County's seat, Norristown, is lo ...
, where it has access to
I-76 Interstate 76 may refer to: Interstate Highways in the United States * Interstate 76 (Colorado–Nebraska) * Interstate 76 (Ohio–New Jersey), running through Pennsylvania Video gaming * ''Interstate '76 ''Interstate '76'' is a vehicular ...
and
I-476 Interstate 476 (I-476) is a auxiliary Interstate Highway of I-76 in the U.S. state of Pennsylvania. The highway runs from I-95 near Chester north to I-81 near Scranton, serving as the primary north–south Interstate corridor throu ...
, before it continues southeast through Lower Merion Township to US 1, which there is running on the border between Montgomery County and Philadelphia. The portion of PA 23 between Blue Ball and west of Morgantown is designated the Conestoga Ridge Byway, a
Pennsylvania Scenic Byway The Pennsylvania Scenic Byways system consists of 20 roads recognized for their scenic or historic qualities. History In 1991, the National Scenic Byways Program was created by the Intermodal Surface Transportation Efficiency Act, in which roads ...
. PA 23 was first designated in 1927 between US 230 in Lancaster and City Avenue on the Lower Merion Township/Philadelphia border. The route was extended east to US 30 (
Girard Avenue Girard Avenue is a major commercial and residential street in Philadelphia, Pennsylvania. For most of its length it runs east–west, but at Frankford Avenue it makes a 135-degree turn north. Parts of the road are signed as U.S. Route 13 and U.S ...
) in
West Philadelphia West Philadelphia, nicknamed West Philly, is a section of the city of Philadelphia. Alhough there are no officially defined boundaries, it is generally considered to reach from the western shore of the Schuylkill River, to City Avenue to the nort ...
via Conshohocken Avenue and Belmont Avenue in the 1930s. PA 23 was rerouted to use Gulph Road through Valley Forge Park by 1945, with PA 23 Truck designated to bypass the route to the north and east by 1950. PA 23 Alternate (PA 23 Alt.) was designated as an alternate alignment in Lower Merion Township in 1937. PA 23 was moved to its current alignment between Valley Forge and
Bala Cynwyd Bala Cynwyd ( ) is a community in Lower Merion Township, Pennsylvania. It is located on the Philadelphia Main Line in Southeastern Pennsylvania, bordering the western edge of Philadelphia at U.S. Route 1 (City Avenue). It was originally two separ ...
by 1967, replacing parts of PA 363 between Valley Forge and
Port Kennedy A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...
and PA 320 between Bridgeport and West Conshohocken. The alternate and truck routes were also decommissioned at this time. The route was extended west from Lancaster to Marietta by 1970, replacing a part of PA 340; the route was also moved onto a one-way pair in Lancaster. The eastern terminus was moved to its current location in the 1980s. PA 23 was rerouted to its current alignment in the eastern part of Lancaster in 1992, bypassing New Holland Avenue. A PA 23
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms ...
was proposed east of Lancaster in the 1960s; parts of the road were built before construction stopped. The road was turned over to farmers and is known as the "Goat Path". A two-lane bypass of PA 23 east of Lancaster was later proposed before being shelved in 2010. A freeway between US 422 and US 202 in Upper Merion Township called the Schuylkill Parkway was planned in the 1960s; a small stub in Bridgeport was built in 1972 before funding issues halted the project.


Route description


Lancaster County

PA 23 begins at an intersection with PA 441 on the eastern edge of the borough of Marietta in Lancaster County, heading east on two-lane undivided Marietta Avenue into East Donegal Township. The road runs through a mix of farmland and trees with some residences, crossing
Donegal Creek Donegal Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed March 24, 2019 tributary of Chiques Creek in Lancaster County, Pennsylvania in the United States. The stream rises from ...
before heading across
Chiques Creek Chiques Creek (known as ''Chickies Creek'' until 2002) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 tributary of the Susquehanna River in Lebanon and Lancaster co ...
into West Hempfield Township. The route continues through rural land with some housing developments as Marietta Pike, passing through the community of Silver Spring. PA 23 runs through farm fields with some residential and commercial development and crosses into East Hempfield Township at the Stony Battery Road intersection in the community of Oyster Point. The road continues through development with some farmland, coming to bridges over the
US 30 U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route in the system of the United States Numbered Highways, with the highway traveling across the northern tier of the country. With a length of , it is the third longest ...
freeway without an interchange and
Norfolk Southern The Norfolk Southern Railway is a Class I freight railroad in the United States formed in 1982 with the merger of Norfolk and Western Railway and Southern Railway. With headquarters in Atlanta, the company operates 19,420 route miles (31, ...
's Columbia Secondary railroad line. The route passes homes in the community of Rohrerstown and reaches an intersection with PA 741. PA 23 runs through wooded residential areas and enters Lancaster Township upon crossing Little Conestoga Creek. The route becomes Marietta Avenue, running through the community of School Lane Hills and curving to the southeast. The road passes to the north of Wheatland, the former home of 15th President James Buchanan, before it enters the city of Lancaster and becomes city-maintained. Upon entering Lancaster, PA 23 intersects the westbound direction of PA 462 at Race Avenue. Here, the route splits into a
one-way pair A one-way pair, one-way couple, or couplet refers to that portion of a bi-directional traffic facilitysuch as a road, bus, streetcar, or light rail linewhere its opposing flows exist as two independent and roughly parallel facilities. Descripti ...
, with the eastbound direction of PA 23 continuing along two-way Marietta Avenue and the westbound direction of PA 23 becoming
concurrent Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...
with westbound PA 462 on one-way West Walnut Street, carrying two lanes. Two blocks later, near the former UPMC Pinnacle Lancaster hospital, eastbound PA 23 splits from Marietta Avenue onto one-way eastbound West Chestnut Street, with two lanes. The route follows West Chestnut Street eastbound and West Walnut Street westbound, continuing concurrent with PA 462 westbound, passing through residential areas of the city. Eastbound PA 462 is located two blocks south of eastbound PA 23 along King Street. The route heads into the commercial downtown of Lancaster, where it intersects one-way southbound US 222/ PA 272 at North Prince Street. A short distance later, PA 23 crosses one-way northbound PA 72 at North Queen Street. Past this intersection, the route becomes East Chestnut Street eastbound and East Walnut Street westbound, intersecting one-way northbound US 222/PA 272 at North Lime Street at the east end of downtown. Following this, PA 23 passes more homes and industrial establishments in the eastern part of the city. At North Broad Street, westbound PA 462 splits from westbound PA 23, and the two directions of PA 23 merge a short distance later onto four-lane,
divided Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication. At an elementary level the division of two natural numb ...
East Walnut Street, which is state-maintained. The route curves northeast through wooded areas with some nearby development, passing through a corner of Manheim Township before crossing under the Conestoga Creek Viaduct that carries
Amtrak The National Railroad Passenger Corporation, Trade name, doing business as Amtrak () , is the national Passenger train, passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous United Stat ...
's
Keystone Corridor The Keystone Corridor is a 349-mile (562 km) railroad corridor between Philadelphia and Pittsburgh, Pennsylvania, that consists of two rail lines: Amtrak and SEPTA's Philadelphia-to-Harrisburg main line, which hosts SEPTA's Paoli/Thorndale ...
railroad line over the route and the
Conestoga River The Conestoga River, also referred to as Conestoga Creek, is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 tributary of the Susquehanna River flowing through the cente ...
immediately to the east. The road continues north into Lancaster again before it turns northeast into Manheim Township and crosses the Conestoga River back into Lancaster. PA 23 comes to an interchange with the US 30 freeway, onto which it turns northwest for a brief wrong-way concurrency, with a dead end stub heading northeast. PA 23 follows US 30 along a four-lane
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms ...
, in said wrong-way concurrency, and crosses the Conestoga River into Manheim Township. After the river, PA 23 splits from US 30 at a
diamond interchange A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road. Design The freeway itself is grade-separated from the minor road, one crossing the other over a bridge. Approaching the ...
and heads northeast onto New Holland Pike, a three-lane road with a
center left-turn lane A reversible lane (British English: tidal flow) is a lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and li ...
. The route passes through wooded residential areas to the west of the Lancaster Country Club in the community of Eden. The road narrows to two lanes and curves east to cross the Conestoga River into
East Lampeter Township East Lampeter Township is a township in central Lancaster County, Pennsylvania, United States. At the 2020 census the population was 17,834. East Lampeter Township is one of the six suburbs that border the city of Lancaster, all sharing the sa ...
, passing through the community of Holland Heights. At this point, the route enters the
Pennsylvania Dutch Country The Pennsylvania Dutch Country ( Pennsylvania Dutch: ''Deitscherei'' Dutchery', also called Pennsylvania Dutchland ( Pennsylvania Dutch: ''Pennsylvania Deitschland'', german: Pennsylvania Deutschland), or simply the Dutch Country or Dutchland ( ...
of eastern Lancaster County, which is home to many
Amish The Amish (; pdc, Amisch; german: link=no, Amische), formally the Old Order Amish, are a group of traditionalist Anabaptist Christian church fellowships with Swiss German and Alsatian origins. They are closely related to Mennonite churc ...
farms. PA 23 continues into Upper Leacock Township and passes through a mix of farmland and residential and commercial development, passing north of the Lancaster County Christian School and running through the community of Geist and Leacock, where it becomes West Main Street. The route reaches the community of Leola, where PA 772 joins for a short concurrency before it splits to the southeast. The road becomes East Main Street and is lined with more homes and businesses with nearby farmland as it continues east through the community of
Bareville Leacock-Leola-Bareville is a census-designated place (CDP) in Lancaster County, Pennsylvania, in the United States. As of the 2000 census, the CDP population was 6,625. The area is heavily populated by the Amish and Mennonites. Bareville is often ...
. PA 23 becomes the border between West Earl Township to the north and Upper Leacock Township to the south before it enters Earl Township in the community of Groffdale. The road becomes West Main Street and curves northeast past residential and commercial development, crossing into the borough of New Holland. The route becomes lined with homes and passes through the commercial downtown, where it becomes East Main Street. PA 23 runs past more residences before entering commercial areas, passing to the south of
Garden Spot High School Garden Spot High School is located in New Holland, Lancaster County, Pennsylvania, United States. Founded in 1954, this is the only senior high school in the Eastern Lancaster County School District. It is attached to Garden Spot Middle School, ...
and crossing back into Earl Township. The route enters East Earl Township and runs past a mix of farmland, homes, and businesses as Main Street, crossing
US 322 U.S. Route 322 (US 322) is a long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926. A portion of it at one time was concurrent with ...
in the community of
Blue Ball Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when o ...
. PA 23 continues east past more development and intersects PA 897, with that route joining PA 23 for a short concurrency before it heads south. Past this, PA 23 enters agricultural areas and intersects the southern terminus of PA 625. The road runs through more farmland, passing through the residential community of Goodville before it enters Caernarvon Township. The route crosses the Conestoga River and runs through Churchtown. The road curves north-northeast through more rural areas, passing north of Conestoga Christian School before coming to an intersection with PA 10. Here, PA 10 becomes concurrent with PA 23 on a three-lane road with a center left-turn lane, heading into commercial areas. The section of PA 23 in Lancaster County between US 322 and PA 10 is designated as the Conestoga Ridge Byway, a
Pennsylvania Scenic Byway The Pennsylvania Scenic Byways system consists of 20 roads recognized for their scenic or historic qualities. History In 1991, the National Scenic Byways Program was created by the Intermodal Surface Transportation Efficiency Act, in which roads ...
.


Berks and Chester counties

The road crosses into Caernarvon Township in
Berks County Berks County (Pennsylvania German: ''Barricks Kaundi'') is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 428,849. The county seat is Reading. The Schuylkill River, a tributary of the Delaware River, ...
and intersects a ramp that heads north to provide access to northbound I-176 and from southbound I-176. The two routes continue into the community of Morgantown as a two-lane road and pass homes. PA 10 splits from PA 23 by turning north onto Morgantown Road, and PA 23 continues east past more homes and some businesses. The route comes to a bridge over the
Pennsylvania Turnpike The Pennsylvania Turnpike (Penna Turnpike or PA Turnpike) is a toll highway operated by the Pennsylvania Turnpike Commission (PTC) in the U.S. state of Pennsylvania. A controlled-access highway, it runs for across the state. The turnpike's w ...
(
I-76 Interstate 76 may refer to: Interstate Highways in the United States * Interstate 76 (Colorado–Nebraska) * Interstate 76 (Ohio–New Jersey), running through Pennsylvania Video gaming * ''Interstate '76 ''Interstate '76'' is a vehicular ...
) and heads south of Morgantown Airport before passing through farmland with some commercial development, coming to a junction with the western terminus of PA 401. A short distance past the PA 401 intersection, PA 23 enters the borough of Elverson in
Chester County Chester County may refer to: * Chester County, Pennsylvania, United States * Chester County, South Carolina, United States * Chester County, Tennessee Chester County is a county located in the U.S. state of Tennessee. As of the 2020 census, th ...
as West Main Street, briefly gaining a median before passing homes and intersecting the northern terminus of PA 82. Past this intersection, the name of the roadway becomes East Main Street. The route briefly gains a median again before it leaves Elverson for West Nantmeal Township, where it becomes Ridge Road and heads into a mix of farmland and woodland with some homes. The road soon enters Warwick Township, where it reaches a junction with PA 345 in the community of
Warwick Warwick ( ) is a market town, civil parish and the county town of Warwickshire in the Warwick District in England, adjacent to the River Avon. It is south of Coventry, and south-east of Birmingham. It is adjoined with Leamington Spa and Whi ...
. PA 23 continues through wooded areas with some fields and residences, passing to the south of the community of Saint Peters, where it crosses French Creek, and running to the north of Warwick County Park. The route crosses into
South Coventry Township South Coventry Township is a township in Chester County, Pennsylvania, United States. The population was 2,604 at the 2010 census. History The township derives its name from Coventry, England, the native home of an early settler. Coventry Hal ...
and passes through the community of Coventryville before it intersects PA 100 in Bucktown. The road passes south of
Owen J. Roberts High School Owen J. Roberts High School is a high school in the Owen J. Roberts School District. It is located in Bucktown, in South Coventry Township, Chester County, Pennsylvania, in the Philadelphia metropolitan area. It has a Pottstown postal addres ...
before it crosses into East Vincent Township and continues through a mix of fields, woods, and homes, soon entering East Coventry Township. PA 23 curves southeast and crosses back into East Vincent Township and runs through more rural land with some residences, passing to the north of a golf course. The route enters East Pikeland Township and passes near residential neighborhoods before it intersects the eastern terminus of PA 724. At this point, PA 23 turns south onto Schuylkill Road, passing businesses and curving to the southeast. The route becomes the border between the borough of
Phoenixville Phoenixville is a borough in Chester County, Pennsylvania, United States. It is located northwest of Philadelphia at the junction of French Creek and the Schuylkill River. It is in the Philadelphia metropolitan area. The population is 18,616 ...
to the northeast and Schuylkill Township to the southwest and crosses French Creek before passing more businesses and intersecting PA 113. At this point, PA 113 turns southeast to form a concurrency with PA 23 on Nutt Road, a three-lane road with a center left-turn lane that fully enters Phoenixville. The road passes businesses and crosses under an abandoned railroad line, at which point it continues through residential areas. PA 113 splits from PA 23 by heading northeast on Bridge Street, while PA 23 continues southeast on two-lane Nutt Road. The route runs through residential areas with some businesses and passes to the northeast of Phoenixville Hospital before crossing PA 29. The road passes more suburban development and crosses into Schuylkill Township, where it becomes Valley Forge Road and curves to the east. PA 23 crosses
Pickering Creek Pickering Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 tributary of the Schuylkill River in Chester County, Pennsylvania. Pickering Creek's source is located i ...
at the dam forming Pickering Creek Reservoir to the south and turns southeast through wooded areas of residential development. The route reaches the community of
Valley Forge Valley Forge functioned as the third of eight winter encampments for the Continental Army's main body, commanded by General George Washington, during the American Revolutionary War. In September 1777, Congress fled Philadelphia to escape the ...
, where it curves east and enters
Valley Forge National Historical Park Valley Forge National Historical Park is the site of the third winter encampment of the Continental Army during the American Revolutionary War, taking place from December 19, 1777, to June 19, 1778. The National Park Service preserves the site a ...
, the site where General
George Washington George Washington (February 22, 1732, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of th ...
and the
Continental Army The Continental Army was the army of the United Colonies (the Thirteen Colonies) in the Revolutionary-era United States. It was formed by the Second Continental Congress after the outbreak of the American Revolutionary War, and was establis ...
made an important winter encampment during the
American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was a major war of the American Revolution. Widely considered as the war that secured the independence of t ...
.


Montgomery County

Upon crossing Valley Creek, PA 23 enters Upper Merion Township in Montgomery County and intersects the northern terminus of
PA 252 Pennsylvania Route 252 (PA 252) is a north–south state highway in the U.S. state of Pennsylvania that connects PA 320 in Nether Providence Township at its southern terminus to PA 23 in Valley Forge at its northern terminus. The route runs ...
. The route becomes Valley Forge Park Road and intersects Gulph Road to the south of Washington's Headquarters. The road continues east through fields and woods within Valley Forge National Historical Park, passing near the
Friedrich Wilhelm von Steuben Friedrich Wilhelm August Heinrich Ferdinand von Steuben (born Friedrich Wilhelm Ludolf Gerhard Augustin Louis von Steuben; September 17, 1730 – November 28, 1794), also referred to as Baron von Steuben (), was a Prussian military officer who ...
statue and
Washington Memorial Chapel Washington Memorial Chapel — located on Pennsylvania Route 23 in Valley Forge National Historical Park — is both a national memorial dedicated to General George Washington and an active Episcopal parish in Valley Forge, Pennsylvani ...
. PA 23 curves south and intersects North Gulph Road near the park's Visitor Center, at which point the route turns east onto four-lane divided Valley Forge Road and immediately comes to an interchange with the
US 422 U.S. Route 422 (US 422) is a long spur route of US 22 split into two segments in the U.S. states of Ohio and Pennsylvania. The western segment of US 422 runs from downtown Cleveland, Ohio, east to Ebensburg, Pennsylvania. ...
freeway. The route passes between residential high-rise buildings to the north and business parks to the south, narrowing into a two-lane undivided road and heading northeast. The road turns southeast and crosses Trout Creek, running near more business parks and widening back to a four-lane divided highway. PA 23 turns northeast onto four-lane, undivided, township-maintained Geerdes Boulevard briefly, with Allendale Road turning southeast, before heading east on two-lane, undivided, state-maintained Valley Forge Road. The route winds east through suburban residential neighborhoods in
King of Prussia The monarchs of Prussia were members of the House of Hohenzollern who were the hereditary rulers of the former German state of Prussia from its founding in 1525 as the Duchy of Prussia. The Duchy had evolved out of the Teutonic Order, a Roman C ...
, intersecting Henderson Road. The road passes near more homes before reaching a bridge over the unused Schuylkill Parkway freeway stub. PA 23 passes under the William F. Dannehower Memorial Bridge, which carries southbound
US 202 U.S. Route 202 (US 202) is a spur route of US 2. It follows a northeasterly and southwesterly direction stretching from Delaware to Maine, also traveling through the states of Pennsylvania, New Jersey, New York, Connecticut, Mass ...
over the route and the
Schuylkill River The Schuylkill River ( , ) is a river running northwest to southeast in eastern Pennsylvania. The river was improved by navigations into the Schuylkill Canal, and several of its tributaries drain major parts of Pennsylvania's Coal Region. It fl ...
to the north, and curves south into the borough of
Bridgeport Bridgeport is the most populous city and a major port in the U.S. state of Connecticut. With a population of 148,654 in 2020, it is also the fifth-most populous in New England. Located in eastern Fairfield County at the mouth of the Pequonnoc ...
. Here, the route comes to an intersection with the Schuylkill Parkway, which provides a connection to the route from southbound US 202, and turns east onto a four-lane divided highway, passing to the south of industrial development and crossing under
SEPTA The Southeastern Pennsylvania Transportation Authority (SEPTA) is a regional public transportation authority that operates bus, rapid transit, commuter rail, light rail, and electric trolleybus services for nearly 4 million people in five coun ...
's
Norristown High Speed Line The Norristown High Speed Line (NHSL), also called the Purple Line, the P&W, or Route 100,) is a interurban light rapid transit line operated by SEPTA, running between the 69th Street Transportation Center in Upper Darby and the Norristown Tr ...
. PA 23 intersects northbound US 202 at Dekalb Street in the commercial center of Bridgeport and continues east past urban homes and businesses on two-lane undivided West 4th Street. The route becomes East 4th Street and passes near more neighborhoods and some industrial development, curving southeast. PA 23 turns east onto Coates Street and forms the border between Bridgeport to the north and Upper Merion Township to the south. The route curves southeast into Upper Merion Township and becomes Schuylkill River Road, running between homes to the southwest and Norfolk Southern's
Harrisburg Line The Harrisburg Line is a rail line owned and operated by the Norfolk Southern Railway (NS) in the U.S. state of Pennsylvania. The line runs from Philadelphia west to Harrisburg. The Harrisburg Line was formed the day Conrail began operations, ...
and the Schuylkill River parallel to the northeast. The road passes under the Schuylkill River Bridge, which carries the Pennsylvania Turnpike ( I-276), and Norfolk Southern's
Dale Secondary The Trenton Cutoff (sometimes spelled Trenton Cut Off) is a rail corridor in the U.S. state of Pennsylvania that runs from Morrisville to Glenloch. Today used by Norfolk Southern, it consists of two rail lines: the Morrisville Line, which runs ...
, continuing south through a mix of woodland and industrial areas further west of the river and the railroad tracks and passing to the east of a quarry. In Swedeland, PA 23 gains a second westbound lane and intersects the northern terminus of PA 320. The road curves southeast past more industry, narrowing to two lanes and crossing an Upper Merion and Plymouth Railroad spur at-grade before entering the borough of
West Conshohocken West Conshohocken is a borough in Montgomery County, Pennsylvania, United States. The population was 1,320 at the 2010 census. Its sister community is Conshohocken, located across the Schuylkill River. Montgomery County's seat, Norristown, is lo ...
. Here, the route becomes Front Street and runs closely parallel to the Harrisburg Line and the Schuylkill River again, passing under the Pearl Harbor Memorial Bridge that carries
I-476 Interstate 476 (I-476) is a auxiliary Interstate Highway of I-76 in the U.S. state of Pennsylvania. The highway runs from I-95 near Chester north to I-81 near Scranton, serving as the primary north–south Interstate corridor throu ...
over the river. PA 23 heads through PECO's West Conshohocken Gas Operations Center before it crosses Gulph Creek. Following this, the route runs past homes and intersects Fayette Street/Matsonford Road near several high-rise office buildings. Fayette Street heads northeast across the river on the Fayette Street Bridge to the borough of
Conshohocken Conshohocken ( ; Lenape: ''Kanshihàkink'') is a borough on the Schuylkill River in Montgomery County, Pennsylvania in suburban Philadelphia. Historically a large mill town and industrial and manufacturing center, after the decline of industry in ...
and Matsonford Road heads southwest to provide access to the
Schuylkill Expressway The Schuylkill Expressway , locally known as "the Schuylkill", is a freeway through southern Montgomery County and the city of Philadelphia in Philadelphia County, and the easternmost segment of Interstate 76 (I-76) in the U.S. state of Pennsyl ...
(I-76) and I-476. Past this, the route becomes Crawford Avenue and curves to the east past commercial development. The road turns south and becomes Conshohocken State Road, passing under I-76. PA 23 enters
Lower Merion Township Lower Merion Township is a township in Montgomery County, Pennsylvania. It is part of the Philadelphia Main Line. The township's name originates with the county of Merioneth in north Wales. Merioneth is an English-language transcription of the ...
and curves southeast, passing through forested areas of residential development. At the Spring Mill Road intersection, the route becomes township-maintained and winds its way southeast. The road heads through the community of Gladwyne, where it passes homes and a few businesses, before it crosses Mill Creek and makes a turn to the north and a curve southeast in forested areas. At Hollow Road, PA 23 becomes state-maintained again and winds southeast through more wooded residential areas. The route comes to
Bala Cynwyd Bala Cynwyd ( ) is a community in Lower Merion Township, Pennsylvania. It is located on the Philadelphia Main Line in Southeastern Pennsylvania, bordering the western edge of Philadelphia at U.S. Route 1 (City Avenue). It was originally two separ ...
, where it intersects Montgomery Avenue and Bala Avenue and turns east to follow four-lane, township-maintained Conshohocken State Road. PA 23 passes over SEPTA's
Cynwyd Line The Cynwyd Line is a SEPTA Regional Rail line from Center City Philadelphia to Cynwyd in Montgomery County, Pennsylvania. Originally known as the Ivy Ridge Line, service was truncated on May 17, 1986, at its current terminus at Cynwyd. Trac ...
at its terminus at the Cynwyd station and turns southeast past more homes. The route enters commercial areas and reaches its eastern terminus at
US 1 U.S. Route 1 or U.S. Highway 1 (US 1) is a major north–south United States Numbered Highway that serves the East Coast of the United States. It runs from Key West, Florida, north to Fort Kent, Maine, at the Canadian border, making ...
(City Avenue) on the border of Lower Merion Township in Montgomery County and the city of
Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Sinc ...
in
Philadelphia County Philadelphia County is a county in the Commonwealth of Pennsylvania. It is the most populous county in Pennsylvania. As of the 2020 census, Philadelphia County had a population of 1,603,797. The county is the second smallest county in Pennsyl ...
, at which point Conshohocken Avenue continues into Philadelphia.


History


Designation

The road between Marietta and Lancaster was chartered as a private
turnpike Turnpike often refers to: * A type of gate, another word for a turnstile * In the United States, a toll road Turnpike may also refer to: Roads United Kingdom * A turnpike road, a principal road maintained by a turnpike trust, a body with powers ...
called the Lancaster, New Haven, and Waterford Turnpike in 1805, later being known as the Lancaster and Marietta Turnpike. What would become PA 23 between Lancaster and New Holland was chartered as the New Holland and Lancaster Turnpike on March 20, 1810. The Morgantown, Churchtown, and Blue Ball Turnpike was chartered on February 25, 1814. This turnpike, which was built along the Horse-Shoe Road and ran between the Downingtown and Harrisburg Turnpike at Blue Ball and Little Conestoga in Morgantown, was finished in 1819. When Pennsylvania first legislated routes in 1911, what would become PA 23 was designated as Legislative Route 244 between Leacock and Morgantown and Legislative Route 201 between Phoenixville and King of Prussia. In 1927, PA 23 was designated to run from US 230/ PA 41/PA 72 (Prince Street) in Lancaster east to City Avenue on the border of Philadelphia. The route followed Walnut Street and New Holland Avenue before continuing along its current alignment between Lancaster and
Port Kennedy A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...
, where it ran southeast along Gulph Road and Old Gulph Road before turning east along Spring Mill Road and southeast along Morris Avenue, Williamson Road, Old Gulph Road, Mill Creek Road, Conshohocken State Road, and Bala Avenue. When first designated, the entire length of the route was paved. The route between Marietta and Lancaster was an unnumbered road that was paved by 1930. The present route between Bridgeport and Swedeland was designated as part of PA 123 in 1928. In the 1930s, PA 23 was extended east to US 30 (
Girard Avenue Girard Avenue is a major commercial and residential street in Philadelphia, Pennsylvania. For most of its length it runs east–west, but at Frankford Avenue it makes a 135-degree turn north. Parts of the road are signed as U.S. Route 13 and U.S ...
) in
West Philadelphia West Philadelphia, nicknamed West Philly, is a section of the city of Philadelphia. Alhough there are no officially defined boundaries, it is generally considered to reach from the western shore of the Schuylkill River, to City Avenue to the nort ...
, following Conshohocken Avenue and Belmont Avenue. By 1940, the road between Marietta and Lancaster became part of an extended PA 340. By 1945, PA 23 was rerouted to pass through Valley Forge Park along Gulph Road, with an extended PA 363 replacing the route on Valley Forge Road and PA 652 replacing the designation between PA 363 and Gulph Road. By 1950, PA 23 Truck was designated as a truck bypass of the section along Gulph Road through Valley Forge Park, running concurrent with PA 363 on Valley Forge Road before turning south along former PA 652. In addition, PA 23 Alt. was designated as an alternate alignment in Lower Merion Township following Montgomery Avenue. The current alignment between US 202 in Bridgeport and Spring Mill Road in Lower Merion Township became a northern extension of PA 320 by 1960. By 1967, PA 23 was moved to its current alignment between Valley Forge and Bala Cynwyd. The route replaced PA 363 and PA 23 Truck along Valley Forge Road through Valley Forge Park and replaced PA 320 between Bridgeport and Spring Mill Road. By 1970, PA 23 was extended west from US 222/PA 72 in Lancaster to PA 441 in Marietta, replacing PA 340. In Lancaster, the route was moved to a one-way pair following Chestnut Street eastbound and Walnut Street westbound between College Avenue and Plum Street. In the 1970s, the west end of the one-way pair in Lancaster was shifted to Race Street while westbound PA 462 was designated concurrent with westbound PA 23 on Walnut Street, shifting from Orange Street. The eastern terminus of PA 23 was cut back from US 30 (Girard Avenue) to US 1 (City Avenue) in Philadelphia in the 1980s. In 1992, the four lane-road connecting the east end of Chestnut and Walnut streets to the US 30 freeway in Lancaster was built, and PA 23 was rerouted off New Holland Avenue to follow Chestnut and Walnut streets east before continuing northeast on the four-lane road and northwest on the US 30 freeway over the Conestoga River to rejoin New Holland Pike.


Freeway proposals

In the 1960s, plans were made to build a
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms ...
for PA 23 between US 30 and PA 772 in Lancaster County. Construction began, but was stopped due to funding issues and public opposition. In 1977, the right-of-way for the freeway was planted over and leased to area farmers, becoming known as the "Goat Path". Traces of the incomplete freeway remain, including bridges over and under local roads, grading for the roadway, and an incomplete interchange with PA 772. Despite the cancellation of the freeway, plans continued for capacity improvements on the PA 23 corridor in eastern Lancaster County due to increased traffic levels. Two proposed alternatives existed to build a new two-lane alignment of PA 23 east of Lancaster. The Bareville Connector Alternative would build a new two-lane PA 23 between the US 30 interchange east of the Conestoga River and Bareville, following the Goat Path and having access to Greenfield Road, Horseshoe Road, and PA 772. In addition, a two-lane Industrial Connector would be built between PA 23 in Bareville and Diller Avenue in New Holland. The Southern Alternative would build a new two-lane PA 23 between the US 30 interchange east of the Conestoga River and US 322 in Blue Ball. The route would utilize the Goat Path and have access to Greenfield Road, Horseshoe Road, PA 772, Diller Avenue, New Holland Road, Ranck Road, and Rancks Church Road. The proposed two-lane bypass would have cost $100 million. In 2010, the project was shelved after the
Pennsylvania Department of Transportation The Pennsylvania Department of Transportation (PennDOT) oversees transportation issues in the Commonwealth of Pennsylvania. The administrator of PennDOT is the Pennsylvania Secretary of Transportation, currently Yassmin Gramian. Presently, Pe ...
(PennDOT) determined it needed the money to repair structurally deficient bridges. Plans were made in the late 1960s to build the Schuylkill Parkway, a freeway bypass of PA 23 between US 422 and US 202 in Upper Merion Township. In 1972, overhead traffic signals were installed and a portion of the road was built west from US 202 and PA 23 in Bridgeport. Construction was halted after PennDOT ran out of funds to construct the road. The short freeway stub of the Schuylkill Parkway that was built became known as "The Road to Nowhere". In 2002, the Schuylkill Parkway was incorporated into new plans to build a bypass of PA 23 in Upper Merion Township, this time as a surface road that would connect and improve existing roads. Nothing has come from these plans so far. The Schuylkill Parkway freeway stub has been used as a filming location as well as for training emergency vehicle drivers and for commercial vehicle driver tests. It is maintained by PennDOT as State Route 3021, an unsigned
quadrant route In the U.S. state of Pennsylvania, state highways are generally maintained by the Pennsylvania Department of Transportation (PennDOT). Each is assigned a four-digit State Route (SR) number in the present Location Referencing System. Traffic Routes ...
.


Major intersections


Special routes


King of Prussia alternate truck route

Pennsylvania Route 23 Alternate Truck (PA 23 Alt. Truck) is a
truck route A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame constructi ...
around a weight-restricted bridge over the Trout Creek in Upper Merion Township, on which trucks over 32 tons and combination loads over 40 tons are prohibited. The route follows Gulph Road, US 202, and Henderson Road. It was signed in 2013.


Former Phoenixville alternate truck route

Pennsylvania Route 23 Alternate Truck (PA 23 Alt. Truck) was a
truck route A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame constructi ...
around a formerly weight-restricted bridge over the French Creek in Phoenixville, on which trucks over 22 tons and combination loads over 26 tons were prohibited. The route followed PA 724, Bridge Street, Main Street, Township Line Road, and US 422. It was signed in 2013 and decommissioned by Fall 2017 with the rehabilitation of the bridge over French Creek allowing for the removal of the weight restriction.


Former Lower Merion alternate route

Pennsylvania Route 23 Alternate (PA 23 Alt.) was an
alternate route An official alternate route is a special route in the United States that provides an alternate alignment for a highway. They are loop roads and found in many road systems in the United States including the U.S. Highway system and various state an ...
of PA 23 in Montgomery County. The route began at PA 23 (Gulph Road) in Upper Merion Township and headed southeast on Montgomery Avenue into Lower Merion Township, reaching an intersection with PA 320. PA 23 Alt. continued southeast and passed through Narberth before it ended at another intersection with PA 23 (Conshohocken State Road) in Bala Cynwyd. PA 23 Alt. was designated in 1937. The alternate route was decommissioned in 1967, with PA 320 replacing the route north of Spring Mill Road.


Former Valley Forge truck route

Pennsylvania Route 23 Truck (PA 23 Truck) was a truck route around the section of PA 23 that followed Gulph Road through Valley Forge Park. The truck route began at PA 23 near the community of Valley Forge and headed east concurrent with PA 363 on Valley Forge Road. At Port Kennedy, PA 363 turned north and PA 23 Truck headed south to rejoin PA 23 near King of Prussia. PA 23 Truck was designated by 1950, following PA 363 along Valley Forge Road and replacing PA 652 between Port Kennedy and King of Prussia. The truck route was decommissioned in 1967, with PA 23 replacing the route along with PA 363 on Valley Forge Road and the route east of there becoming a rerouted PA 363 on North Gulph Road.


See also

* *


References


External links

{{Commons category
Pennsylvania Highways: PA 23PA 23 at AARoads.comPennsylvania Roads - PA 23The Roads Of Metro Philadelphia: PA 23 Expressway (unbuilt)PA 23 Environmental Impact Statement homepage
023 Transportation in Lancaster, Pennsylvania Transportation in Lancaster County, Pennsylvania Transportation in Berks County, Pennsylvania Transportation in Chester County, Pennsylvania Transportation in Montgomery County, Pennsylvania