Wikipedia:WikiProject U.S. Roads/Pennsylvania/Selected article

Previous WP:USRD/PA selected articles.

Pennsylvania Route 29 is a 112 mile north-south state highway that runs through eastern Pennsylvania. The road used to be connected, but was split in 1966 due to long concurrencies with several other routes. PA 29 runs from U.S. Route 30 in Malvern to Brookdale where it continues eastward as New York State Route 7.

Pennsylvania Route 65 (abbreviated PA 65) is a major 51 mile (83 km) long state highway located in western Pennsylvania, United States. The route, traveling north-south from the Interstate 279/U.S. Route 19 Truck concurrency in Pittsburgh north to the PA Route 108/PA Route 168 concurrency in New Castle, connects downtown Pittsburgh to the northwestern portion of the Pittsburgh Metropolitan Area. PA 65 is similar in its purpose to PA Route 18 and PA Route 51, both of which run parallel to PA 65 at one point or another; however, the three routes pass through different cities for most of their respective alignments.

Pennsylvania Route 641 (PA 641) is a state route located in Central Pennsylvania. The route is 57 miles long from U.S. Route 522 in Shade Gap to U.S. Route 11 and U.S. Route 15 in Camp Hill. PA 641 carries names like Trindle Road, Forge Hill Road, Newburg Road, Main Street, Newville Road, Green Spring Road, Carlisle Road, High Street, and Timmons Road.

Pennsylvania Route 145 (PA 145) is a 20 mile (32 km) long state highway, in the US state of Pennsylvania. The designation of the highway begins at exit 60 of Interstate 78 and Pennsylvania Route 309 in the hamlet of Lanark, north to Pennsylvania Route 248 in the community of Weiders Crossing.

Commissioned in 1928, PA 145 is the main north-south route into Allentown, Pennsylvania, the third-largest city in Pennsylvania. In Whitehall Township, a seven mile portion of PA 145 is known as MacArthur Road. MacArthur Road is almost entirely divided; between US 22 and Eberhart Road, it is up to six lanes wide with slip ramps. In Whitehall Township, MacArthur Road is the location of the main commercial center of the Lehigh Valley. The Lehigh Valley Mall, a large Allentown-area shopping mall, is located on PA 145, in Whitehall Township.

State Route 1002 (SR 1002), locally known as Tilghman Street and Union Boulevard, is a major 13.7 mi (22.0 km) long east-west road in the Allentown-Bethlehem-Easton metropolitan area of the U.S. state of Pennsylvania. The majority of the roadway is the former alignment of U.S. Route 22, maintained by the Pennsylvania Department of Transportation as a Quadrant Route, and is not signed except on small white segment markers.

Tilghman Street begins at Pennsylvania Route 100 in Fogelsville, though SR 1002 continues west on Main Street (also old US 22) to the intersection of Church Street (SR 3014). It becomes Union Boulevard just east of the bridge over the Lehigh River in Allentown; SR 1002 ends at the interchange with Pennsylvania Route 378 in Bethlehem. Union Boulevard continues over Monocacy Creek, which forms the border between Lehigh and Northampton Counties, and ends in downtown Bethlehem.

Today, the highway attracts more than the average traffic for roads in the Lehigh Valley. An average of 21,018 vehicles use it in South Whitehall Township and 21,706 in Allentown each day.

Pennsylvania Route 39 (PA 39) is a 17.68 mi (28.45 km)-long, east-west, state highway in Dauphin County of the U.S. state of Pennsylvania. It is designated from North Front Street in Susquehanna Township, to US 322 and US 422 in the Hummelstown/Hershey area.

PA 39 is one of the few state routes to end on a non-numbered road. This exists because North Front Street is the decommissioned route for US 22/US 322 (as well as PA 14, US 11 and US 15).

From the western terminus to Interstate 81, PA 39 is known as Linglestown Road. Linglestown Road is mostly a two lane road running east–west through the northern portions of Dauphin County.

From Interstate 81 to Hersheypark Drive, PA 39 is known as Hershey Road turning south, but keeping the east-west signage. When becoming Hersheypark Drive, PA 39 is routed opposite to its alignment before reaching the eastern terminus.

Pennsylvania Route 222 is a 4.49 mi (7.23 km)-long state highway contained entirely in Allentown, Lehigh County, Pennsylvania and its immediate suburbs mostly along Hamilton Boulevard. The route, in center city Allentown, is aligned along West Hamilton, West Linden, and West Walnut Streets. The route is referenced as SR 2006, under the Local Referencing System.

The southern terminus of the route is at Interstate 78 and Pennsylvania Route 309 in Dorneyville, where the right-of-way of PA 222 changes designation to U.S. Route 222. The northern terminus is Pennsylvania Route 145 in Allentown.

Pennsylvania Route 31 is a 74 mile long state highway located in Western Pennsylvania, paralleling U.S. Route 30 and the Pennsylvania Turnpike for most of its length. The designation begins at PA 136 near West Newton and ends at US 30 near Bedford.

Pennsylvania Route 191 is a 111.54 mi (179.51 km)-long state highway in the U.S. state of Pennsylvania. The route, a major non-freeway corridor connecting the Lehigh Valley to The Poconos in eastern Pennsylvania, is designated from U.S. Route 22 in Brodhead to the New York state line over the Delaware River at Hancock, New York.

Commissioned in 1961, the route replaced the PA 12 and PA 90 numbers that were in place from the late 1920s to the 1960s. From 1961 to 1976, PA 191 was routed south of US 22 through Bethlehem and terminated at Pennsylvania Route 309 in Center Valley. Pennsylvania Route 378 replaced the designation from Center Valley to the Lehigh River crossing in Bethlehem.

Pennsylvania Route 73 (PA 73) is a 62.51 mi (100.60 km) long east-west state highway in southeastern Pennsylvania. It runs from Pennsylvania Route 61 in Leesport to the New Jersey state line on the Tacony-Palmyra Bridge in Philadelphia, where it continues as New Jersey Route 73.

Predating the Interstate and U.S. Highway Systems, the Skippack Pike, a modern section of the route, served as the primary connector between Philadelphia and the northwest suburbs.

Note: Was left as selected article until June 2010.

Pennsylvania Route 652, designated by the Pennsylvania Department of Transportation (PennDOT) as State Route 0652, is a 10.57-mile (17.01 km) long east–west state highway located in the northeast Pennsylvania county of Wayne. The western terminus of the route is at U.S. Route 6 in the Texas Township community of Indian Orchard. The highways heads to the northeast, and reaches the eastern terminus at the New York-Pennsylvania border in Damascus Township, where Route 652 crosses the Narrowsburg–Darbytown Bridge over the Delaware River and into New York, continuing as New York State Route 52 and Sullivan County Route 24.

The highway originated as the easternmost stretch of United States Route 106 when the United States Highway System was first put together in 1926. The route, however, was assigned as a state highway in 1920. Route 652 was once used south of the alignment, in the northern suburbs in Philadelphia. Route 652 remained on that alignment until 1946, and in 1972, the 652 designation was reassigned onto the U.S. Route 106 alignment.

Pennsylvania Route 666 is an east–west state route located in northwest Pennsylvania. The western terminus of the route is at U.S. Route 62 in the Hickory Township municipality of East Hickory, and its eastern terminus is at U.S. Route 6 in the hamlet of Sheffield in the township of the same name. It cuts through most of Allegheny National Forest, and is therefore sparsely populated, with the largest settlement along the road being Endeavor, Pennsylvania. Its official name is the David Zeisberger Memorial Highway.

The route was assigned in the 1928 numbering of State Routes in Pennsylvania. The highway originally ended in Nebraska, Pennsylvania until being extended southward along other streets. The route was realigned in 1946 onto its present routing. The highway has remained the same since.

Pennsylvania Route 51 (PA 51) is a major state highway in Western Pennsylvania. It runs for 89 miles (143 km) from Uniontown to the Ohio state line near Darlington, where it connects with Ohio State Route 14. Route 51 is the termination point for Pennsylvania Route 43, Pennsylvania Route 48 and Pennsylvania Route 88. Century III Mall is located on this road in West Mifflin. The Route is a major connection from Uniontown and the rest of Fayette County to Pittsburgh.

The highway is four-lane highway south of Pittsburgh as it passes through Pittsburgh's South Hills, but narrows to a two-lane road through several boroughs along the Ohio River. It becomes four lanes again after passing Racine in Beaver County and continues to the Ohio border. In the South Hills, Route 51 (Saw Mill Run Blvd.), along with US 19, is one of the major routes in and out of Pittsburgh, as it provides access to several bridges and tunnels. Route 51 is one of the highways that enters the West End Circle, an intersection in the West End.

Pennsylvania Route 263 (PA 263) is a north–south state highway located in southeast Pennsylvania. The southern terminus of the route is at PA 611 in Willow Grove, Montgomery County. The northern terminus is at PA 32 in Centre Bridge, Bucks County on the banks of the Delaware River near the Centre Bridge-Stockton Bridge. It follows the routing of Old York Road, a historic road that connected Philadelphia to New York City, and carries the name York Road from the southern terminus to Lahaska and Upper York Road north of there. From Willow Grove to Buckingham, PA 263 runs mostly through suburban areas as a four-lane road, passing through Hatboro, Warminster, and Jamison. The route forms a concurrency with U.S. Route 202 (US 202) and narrows to a two-lane road, splitting with that route in Lahaska. From here, the route continues through rural areas to Centre Bridge. PA 263 follows a part of the alignment of Old York Road, which was laid out in 1711. In 1911, the portion of the current route south of Lahaska became part of Legislative Route 155. When Pennsylvania designated its state highways, PA 263 was assigned to its current alignment between Willow Grove and Centre Bridge.

Pennsylvania Route 171 (also designated by the Pennsylvania Department of Transportation as SR 0171) is a 40.15-mile (64.62 km) long north–south state highway located in northeast Pennsylvania. The southern terminus of the route is at U.S. Route 6 Business in Carbondale. The northern terminus is officially located at the southbound on-ramp to Interstate 81 in Great Bend; however, signage for PA 171 is present at an intersection with U.S. Route 11, 250 feet (76 m) to the west of I-81.

PA 171, at its southern end, was once part of the Providence and Carbondale Turnpike, which ran along US 6 BUS from Dickson City to Carbondale and PA 171 from Carbondale to Forest City. The turnpike, chartered in 1851, ran from Scranton until being abandoned in 1889. In 1911, after the Sproul Road Bill was signed, a large segment of PA 171 was designated as Legislative Route 10. This was its designation for several years, and in 1928, the mass amount of state highways in Pennsylvania were designated.

In the 1928 renumbering, the alignments of PA 171 were designated as Pennsylvania Route 70, Pennsylvania Route 602, and Pennsylvania Route 692, which stretched the highway from U.S. Route 6/U.S. Route 106 in Carbondale to the New York state line at Hallstead. In 1946, PA 692 and PA 602 were later removed from the state system and replaced by an extended PA 70. In 1961, PA 70 was renumbered as PA 171 to prevent duplication with Interstate 70.

Pennsylvania Route 646 (designated by the Pennsylvania Department of Transportation as SR 0646) is a 19.09 miles (30.72 km) long state highway located in McKean county in Pennsylvania. The southern terminus is at PA 59 in Keating Township. The northern terminus is the New York state line in Foster Township. The route continues as New York State Route 16 in Cattaugarus County.

Route 646 was assigned in the 1928 mass numbering of state routes in Pennsylvania. At that time, it consisted entirely of the PA 346–state line stretch in Foster Township. The rest of the stretch consisted of Route 59, now realigned, and Route 746, now decommissioned. Route 746 was decommissioned in 1946, and PA 59 was realigned in 1952, with PA 646 being extended onto its current alignment. The route has remained virtually unchanged since the change in 1952.

Pennsylvania Route 21 is a 50.5-mile (81.3 km) long east–west state highway in the US state of Pennsylvania. The western terminus of the route is at the West Virginia state line in Richhill Township, where PA 21 continues into West Virginia as West Virginia Route 891. The eastern terminus is at U.S. Route 40 Business in Uniontown. The route is known as the Roy E. Furman Highway for most of its length.

Pennsylvania Route 63 (PA 63) is a 37.1-mile (59.7 km) long state highway located in the Philadelphia, Pennsylvania area. The western terminus of the route is at PA 29 in Green Lane, Montgomery County. The eastern terminus is at Interstate 95 (I-95) in Bensalem Township, Bucks County. The route heads through a mix of suburban and rural areas of northern Montgomery County as a two-lane road, passing through Harleysville, before coming to an interchange with I-476 (Pennsylvania Turnpike Northeast Extension) in Towamencin Township. From this point, PA 63 continues through predominatly suburban areas of eastern Montgomery County as a two- to four-lane road, passing through Lansdale, Maple Glen, Willow Grove, and Huntingdon Valley. Upon entering Northeast Philadelphia, the route follows Red Lion Road and U.S. Route 1 (US 1) before heading southeast on a freeway called Woodhaven Road to I-95.

What would become PA 63 by 1930 was originally designated as Legislative Route 198 in 1911, running from Green Lane to Northeast Philadelphia. When first designated, PA 63 ran from PA 29 in Green Lane to PA 532 in Northeast Philadelphia, following its current alignment to Willow Grove and then following Edge Hill Road, Terwood Road, and Welsh Road to Bethayres, where the route continued along Philmont Avenue to PA 532. By 1940, PA 63 was moved to its current alignment between Willow Grove and Bethayres and was realigned to follow Byberry Road to PA 532. The former alignment of PA 63 on Edge Hill Road and Terwood Road became Pennsylvania Route 163, which was removed by 1950. In the 1950s, the Woodhaven Road freeway was planned to serve Northeast Philadelphia, connecting I-95 to PA 63 at Philmont Avenue, with a further extension to I-276 (Pennsylvania Turnpike) in Southampton once planned. The freeway was completed to Evans Street just west of US 1 in the 1960s and PA 63 was extended along Byberry Road and Woodhaven Road to end at I-95. In the 1980s, PA 63 was rerouted to use Red Lion Road and US 1 to reach Woodhaven Road. Plans to extend Woodhaven Road through the rest of Northeast Philadelphia remain, but have been on hold due to community opposition and financial constraints.

Pennsylvania Route 402 (designated by the Pennsylvania Department of Transportation as SR 0402) is a 29.31-mile (47.17 km) north–south state route in the Pennsylvania counties of Pike and Monroe. The southern terminus of the route is at U.S. Route 209 in the Smithfield Township village of Marshalls Creek. The northern terminus is at U.S. Route 6 in Blooming Grove Township. Route 402 has remained intact for most of its lifetime, with only one minor realignment after being assigned in 1928. Route 402 is also part of an on-hold project called the Marshalls Creek Bypass. The bypass was proposed in 1991 to relieve congestion on Route 402 in the village of Marshalls Creek.

Pennsylvania Route 287 is a 63.9-mile (102.8 km) long state highway in the Tioga Valley of Pennsylvania. Route 287 begins at an intersection with U.S. Route 220 in the community of Larrys Creek in Piatt Township, Lycoming County to an intersection with Pennsylvania Route 49 just south of the New York state line in Lawrenceville, Tioga County. The route follows Larrys Creek through several isolated communities, including Salladasburg and English Center, before working its way towards Hoytville, where it meets Pennsylvania Route 414. The route ends up in Wellsboro, where it meets U.S. Route 6, and reaches Tioga.

The alignment of Route 287 has been successor to a set of plank roads from Larrys Creek to Lawrenceville. The southern plank road, known as the Larrys Creek Plank Road, dates back to 1850 as short highway from Larrys Creek to Salladasburg, and was completely gone by 1900. The second part followed the Tioga and Lawrenceville Plank Road, which although is named from Tioga to Lawrenceville, went from Wellsboro to Tioga. The portion to Lawrenceville was never constructed. The route also followed several postal routes in the area. In 1911, the Sproul Road Bill was passed, and Route 287 became segments of Legislative Route 22, Legislative Route 106, and Legislative Route 353. In 1924, the northernmost portion was designated Route 4 and the Susquehanna Trail. This was changed to part of U.S. Route 220 in 1926.

In 1928, U.S. Route 111 was designated, and along with Pennsylvania Route 84, consisted of the alignment of Route 287. Route 111 was redesignated as part of U.S. Route 15. The highway was redesignated as Route 287 in 1961 when Route 84 was decommissioned in favor of Interstate 84. The route was extended from Tioga to Lawrenceville in 2008, when the construction of U.S. Route 15 was finished to the New York state line, and Route 287 was extended to Route 49.

Pennsylvania Route 997 is a 49-mile (79 km) route in Franklin and Cumberland Counties. The route begins at the Maryland state line south of Waynesboro and ends at Pennsylvania Route 233 in McCrea. The route was originally signed in 1928 from Waynesboro to Pennsylvania Route 433. Both termini, however, have been adjusted northward and southward. The route is concurrent with two state routes, 16 and 641, and one U.S. Route, Route 30. The route was assigned in 1928 up to U.S. Route 30 in Greenwood. The route was extended several times and has been on its current alignment since 1977.

Pennsylvania Route 112 (known formerly by the Pennsylvania Department of Highways as SR 0112) was a 4.75-mile (7.64 km) long state highway located in Delaware and Chester counties in Pennsylvania. Running along current day Cheyney Road, PA 112 began at an intersection with U.S. Route 1 in Markham, headed northward, and terminated at an intersection with Pennsylvania Route 926 in the community of Tanguy.

PA 112 was assigned in the commonwealth's numbering of state highways in 1928. The route remained intact for thirteen years, when, in 1941, the highway was extended southward to U.S. Route 322 south of Markham. The route remained for another five years, when the route was removed from the state highway system completely.

Pennsylvania Route 371 (designated by the Pennsylvania Department of Transportation as SR 0371) is a 23.45-mile (37.74-kilometer) long state highway located in Susquehanna and Wayne Counties. The western terminus is at Route 171 / Route 374 near the community of Union Dale in Herrick Center. The eastern terminus is the New York state line in Damascus Township on the Delaware River. It continues as Sullivan County Route 114 in New York towards New York State Route 97.

Route 371 originates as a road cut in 1791 and later used for the Newburgh and Cochecton Turnpike in 1806. The new turnpike was finished in 1811 and renamed as the Great Bend and Newburgh Turnpike in accordance for the extension to Great Bend, Pennsylvania. The turnpike was abandoned in 1853. Route 371 was originally designated along the turnpike route in 1936 by the Department of Highways from Great Bend to Damascus. The route remained intact until 1954, when the route was truncated back to Route 171 in Herrick Center. The route was replaced by Route 374 and Route 848 in 1961.

Pennsylvania Route 405 (designated by the Pennsylvania Department of Transportation as SR 0405) is a state highway that runs for 28.05 miles (45.14 km) in north central Pennsylvania, United States. The southern terminus of Pennsylvania Route 147 in West Chillisquaque Township. The route heads northward along the West Branch Susquehanna River through Milton, Watsontown and Muncy until entering Hughesville, where it terminates at an intersection with U.S. Route 220.

Route 405 originated as the Muncy and Hughesville Plank Road, a 5-mile (8.0 km) plank road from Muncy to Hughesville, created in 1853. The plank road also consisted of a bridge over the Muncy Canal on the outskirts of the community. Route 405 was assigned in 1941, after switching between numerous designations, including alignments of U.S. Route 15, U.S. Route 111, U.S. Route 220, and U.S. Route 711. The alignment of Route 405 was extended to its current southern terminus when Route 147 was realigned onto a new highway. As part of the Central Susquehanna Valley Transportation Project, PA 405 will continue south from its current southern terminus, replacing the stretch of PA 147 until its junction with PA 61 in Sunbury, its new southern terminus. PA 147 will have an alternate route between those two junctions and will not be duplexed with PA 405 at any point.

Pennsylvania Route 343 (designated by the Pennsylvania Department of Transportation as SR 0343) is an 8.21-mile (13.21 km) route between Lebanon, Pennsylvania and Fredericksburg, Pennsylvania. It begins at PA 72 and ends at Exit 6 of Interstate 78. State Route 343 heads mostly through urbanized areas, with several rural areas also surrounding. There is a concurrency with U.S. Route 22 near the northern terminus.

State Route 343 has had a number of different realignments, most of them relating to the northern terminus of the highway. The highway originally terminated at an intersection with SR 443 in Lickdale, moved to end in the community of Bordnersville soon after. The highway was then extended along the local continuation to end at U.S. Route 22 at an intersection in Harpers Tavern. In 1963, State Route 343 was moved back to Lickdale, and seven years after, moved to its northern terminus, thirteen years after the construction of Interstate 78.

Pennsylvania Route 737 (Route 737) is a state highway in Berks County, Pennsylvania. The route runs from U.S. Route 222 in Kutztown north to Pennsylvania Route 143 in Albany Township. Route 737 heads north from an interchange with the U.S. Route 222 Kutztown Bypass north of Kutztown on Krumsville Road. It continues north through a small part of Maxatawny Township into Greenwich Township. The road features an interchange with Interstate 78/U.S. Route 22 near the village of Krumsville. Route 737 then heads northwest into Albany Township where it ends Route 143 near the village of Kempton.

Route 737 was assigned to a formerly un-designated local road between Kutztown and Kempton in 1962. Around that time, U.S. Route 222 served as the southern terminus in downtown Kutztown. When the Kutztown Bypass was constructed in the 1970s, U.S. Route 222 was realigned off of Main Street in Kutztown and onto the bypass. The road, at that point, ended at the now locally-maintained Main Street until 1978, when the designation was truncated. Since then, the route has remained virtually untouched in alignment.

Pennsylvania Route 237 (formerly designated by the Pennsylvania Department of Transportation as SR 0237) was an 3.88-mile (6.24 km) route between State Route 37 and State Route 590 in Lackawaxen to an intersection with State Route 137 (now State Route 434) in Shohola Township. The route followed the shores of the Delaware River as Lackawaxen Road. The route's alignment, after assignment in 1928, remained the same until being removed from the state highway system in 1946. The route was paved in 1932, and the route is now known as State Route 1012 and Shohola Township Roads 413 and 454.

Pennsylvania Route 563 (PA 563) is a state highway in the U.S. state of Pennsylvania. The route runs 21.1 mi (33.96 km) from PA 63 in Upper Salford Township northeast to PA 412 in Nockamixon Township. The road runs through mostly rural areas in the northern parts of Montgomery and Bucks counties. Along the way, the route passes through the northern part of Perkasie and forms a concurrency with PA 313 in East Rockhill Township. North of here, PA 563 runs through Nockamixon State Park, running to the north of Lake Nockamixon.

PA 563 was first created by 1930 to connect Bergey to Harrow, following its current alignment to PA 313 before continuing straight along Ridge Road and continuing to PA 412. By 1940, construction of the road into a state highway was completed. In the early 1970s, PA 563 was moved to its current alignment north of PA 313 as a result of the creation of Lake Nockamixon, which severed the original alignment.

Pennsylvania Route 434 (designated by the Pennsylvania Department of Transportation as SR 0434) is a 12.46-mile (20.05 km) long state highway located in northeast Pennsylvania. The western terminus of the route is at Pennsylvania Route 739 in the Blooming Grove Township community of Lords Valley. The eastern terminus of the route is at the New York-Pennsylvania border in Shohola Township, where PA 434 crosses the Delaware River and enters New York, becoming New York State Route 55 at an intersection with New York State Route 97 in the town of Highland. State Route 434 is formerly part of Pennsylvania Route 37 and Pennsylvania Route 137.

Interstate 95 is an Interstate highway running from Miami, Florida north to Houlton, Maine. In the U.S. state of Pennsylvania, the route is known by many as the Delaware Expressway, but is officially named The Vietnam Veterans Memorial Highway. and locally known as "95". It runs 51 miles (82 km) from the Delaware state line near Marcus Hook to the New Jersey state line crossing the Delaware River near Yardley on the Scudder Falls Bridge. It parallels its namesake Delaware River for its entire route through the city of Philadelphia and its suburbs. It is a major route through the city and the metropolitan Delaware Valley, providing access to locally important landmarks such as Philadelphia International Airport, the Philadelphia Sports Complex, PPL Park, Penn's Landing, and Franklin Mills. Of the 15 states that Interstate 95 runs through, Pennsylvania is the only one that does not border the Atlantic Ocean.

Plans for a limited-access route along the Delaware River in the Philadelphia area originated in the 1930s when both a parkway and elevated highway were proposed; neither of these were built. The Delaware Expressway was approved in 1945 as a toll road that was to be part of the Pennsylvania Turnpike system until the project was turned to the Pennsylvania Department of Highways in 1956, with the expressway to be included in the Interstate Highway System as part of I-95. Construction on I-95 began in 1959 and was mostly complete by 1979, with the final portion near the Philadelphia International Airport finished in 1985. The route was originally projected to run through the center of Trenton, New Jersey, but was rerouted to the Scudder Falls Bridge due to limited capacity in Trenton. In March 2008, large cracks were discovered on a bridge support column in Philadelphia, requiring a two-mile section of the route to be closed for two days. Bridges are planned to be rebuilt along the section of I-95 between Center City and Woodhaven Road (Pennsylvania Route 63) and an interchange is planned to be built with the Pennsylvania Turnpike (Interstate 276) where I-95 will be rerouted to follow the Pennsylvania Turnpike to the New Jersey Turnpike and Interstate 195 will be extended along the current portion of I-95 north of the proposed interchange.

Pennsylvania Route 664 (designated by the Pennsylvania Department of Transportation as SR 0664) is a 17.65-mile (28.40 km) long state highway located in Clinton and Lycoming counties in Pennsylvania. The southern terminus is at State Route 120 in Lock Haven, while the northern terminus is at State Route 44 on the Clinton-Lycoming county line in the community of Haneyville. The route passes through small communities, but does not intersect with any other legislated highways in the area.

The route was assigned in 1930, two years after a majority of state routes were assigned, and had continuous repavings done from 1935 to 1966. There have been no changes in road alignment since its inception.

Pennsylvania Route 858 (designated by the Pennsylvania Department of Transportation as SR 0858) is a 16.58-mile (26.68 km) long state highway located in Susquehanna County in Pennsylvania. The southern terminus is at PA 706 in Rush Township. The northern terminus is the New York state line in Little Meadows. The route from there continues as Tioga County Route 41. The route was assigned in 1928, completed a year later, and has remained the same since, with an exception of its southern terminus changing designations from Pennsylvania Route 67.

Pennsylvania Route 12 (PA 12) is a 9.57-mile (15.40 km) long state highway located in Berks County in eastern Pennsylvania. The western terminus of the route is at U.S. Route 222 (US 222) and US 422 in Wyomissing. Its eastern terminus is PA 662 in Ruscombmanor Township. In the Reading area, PA 12 is a four-lane freeway called the Warren Street Bypass that heads northeast through urban areas, coming to interchanges with several roads including PA 183, PA 61, and US 222 Bus. In Alsace Township, the route becomes a two-lane undivided surface road called Pricetown Road and continues northeast through rural areas, intersecting PA 73 before ending at PA 662.

Pricetown Road originally existed in the 18th century as a road to link farmers in Pricetown to markets in Reading. The Warren Street Bypass was first planned in 1949 as a widening of Warren Street in Reading leading to a new bridge over Tulpehocken Creek to Wyomissing. In the 1950s, the Warren Street Bypass was completed from Wyomissing northeast to US 222 (Allentown Pike, now 5th Street Highway) north of Reading, providing a bypass of Reading. US 222 was routed onto this bypass by 1976, with the Warren Street Bypass extended northeast to Pricetown Road in 1980. The part of the Warren Street Bypass northeast of US 222 along with Pricetown Road became State Route 2026 (SR 2026) when the Location Referencing System was established. In 1999, PA 12 was assigned to its current alignment following the rerouting of US 222 onto a new bypass of Reading.

Interstate 676 (abbreviated I-676) is an Interstate Highway that serves as a major thoroughfare through Philadelphia, Pennsylvania, where it is known as the Vine Street Expressway, and Camden, New Jersey, where it is known as the northern segment of the North–South Freeway, as well as the Martin Luther King Jr. Memorial Highway. Its western terminus is at I-76 in Philadelphia near the Philadelphia Museum of Art. From there it heads east towards the Ben Franklin Bridge. On the New Jersey side of the bridge, the highway heads south to its southern terminus at I-76 in Gloucester City near the Walt Whitman Bridge. Between the western terminus and downtown Camden, I-676 is concurrent with U.S. Route 30 (US 30).

After World War II, freeway approaches were planned for both sides of the Ben Franklin Bridge, which was completed in 1926 and served as a part of US 30. In Pennsylvania, the Vine Street Expressway was planned to run along the northern edge of Center City Philadelphia to the Schuylkill River, while in New Jersey, the North-South Freeway was to head south along the Route 42 corridor. When the Interstate Highway System was created in the 1950s, this stretch of highway was a part of I-80S, with Interstate 680 continuing on the Schuylkill Expressway to the Walt Whitman Bridge. In 1964, the designations became I-76 and I-676, respectively, and in the 1970s the two routes were switched onto their current alignments. I-676 in New Jersey was completed between I-76 and Morgan Boulevard by 1960 and north of there to downtown Camden by the 1980s. The Vine Street Expressway was opened from the Schuylkill Expressway to 18th Street by 1960 and east of there to I-95 on January 10, 1991 after several obstacles to construction. However, there are grade-level intersections in the connections between the Vine Street Expressway and the Ben Franklin Bridge.

Pennsylvania Route 546 (designated by the Pennsylvania Department of Transportation as State Route 0546) is an 3.51-mile (5.65 km) long state highway in the northernmost regions of McKean County, Pennsylvania. The route, known locally as Oil Valley Road, begins at an intersection with Pennsylvania Route 346 in the community of Duke Center (located in Otto Township). The highway heads northward, through mountainous regions before crossing the state line and into New York, where it continues as Cattaraugus County Route 45 to New York State Route 16.

PA 546 was designated in the 1928 numbering of state highways in the commonwealth. The route was under construction and unpaved for two years afterward, and by 1930, the route was complete and has remained virtually intact since.

Pennsylvania Route 463 (PA 463) is a 12.9-mile (20.8 km) long route completely in Montgomery County, Pennsylvania. Its western terminus is at PA 63 (Welsh Road) in Hatfield Township and its eastern terminus is at PA 611 in Horsham. It runs through the northern suburban areas of Philadelphia and passes through the towns of Hatfield, Montgomeryville, and Horsham. The route intersects U.S. Route 202 (US 202) and PA 309 in Montgomeryville and PA 152 in Prospectville. Through its length, the route carries the names Forty Foot Road, Cowpath Road, and Horsham Road. PA 463 was designated by 1930 and fully paved by 1940. In 2010, a portion of the route in Montgomery Township was widened.

Pennsylvania Route 284 (PA 284) is an 9.04-mile (14.55 km) long state highway located in Lycoming County in Pennsylvania. The western terminus is at PA 287 in English Center. The eastern terminus is at US 15 in the Buttonwood section of McNett Township. The route is rather isolated, passing through forestry most of its length. PA 284 was designated as a spur of Pennsylvania Route 84 in the 1928 renumbering of state highways in Pennsylvania. The route was paved in 1932 and has remained relatively untouched since, although Route 84 was re-designated as PA 287 in 1961 to avoid duplication with Interstate 84.

Pennsylvania Route 370 (designated by the Pennsylvania Department of Transportation as SR 370) is an 16.80-mile (27.04 km) long state highway located in Susquehanna and Wayne counties in Pennsylvania. The western terminus is at Route 171 in East Ararat. The eastern terminus is at Route 191 in Buckingham Township near Hancock, New York. Route 370 was first designated by the Pennsylvania Department of Highways in 1928 from the intersection with then Route 70 in East Ararat to an intersection with Route 570 in the hamlet of Preston Park (in Preston Township). The route was extended to an intersection with Route 90 (now Route 191) in 1946, when the 23-mile (37 km) long Route 570 was decommissioned.

Pennsylvania Route 378 (designated by the Pennsylvania Department of Transportation as SR 378) is a north-to-south road in Lehigh and Northampton counties. Its northern terminus is at U.S. Route 22 in Bethlehem and the portion north of the Lehigh River is a freeway. The highway was once Interstate 378 but when Interstate 78 was rerouted from U.S. Route 22 to south of the city, the spur became disjointed from its parent. I-378 was downgraded to state route status. Surprisingly, the state did not remove the exit tabs for the freeway, making PA Route 378 one of only a few state freeways with exit numbers (another one is PA 309 in Wilkes-Barre.) The exit numbers also go in the wrong direction: Exit 3 is south of Exit 1, most likely due to the freeway being built when Pennsylvania still practiced sequential exit numbering.

It narrows to a city street on Bethlehem's South Side, crosses South Mountain to Lower Saucon Township, then proceeds to its southern terminus at PA 309 in Center Valley. PA 378 was originally known as Pennsylvania Route 191 south of the river. Today, PA Route 378 is the only highway from US 22 to Center City, and a quick route for visitors traveling to the Sands Casino Resort on the city's South Side. In 2009, the portion north of the Lehigh River was named the Fred B. Rooney Highway. Construction from West Broad Street to U.S Route 22 (Lehigh Valley Thruway) began in 1966 and finished in 1968. At that time, the segment received the Interstate 378 designation. It was changed to PA 378 in 1971 after I-378 was deleted. In 1974, the designation replaced Pennsylvania Route 191 from Center Valley to Third Street in Bethlehem.

Pennsylvania Route 232 (PA 232) is a 25.2-mile (40.6 km) long state highway located in southeastern Pennsylvania. The southern terminus of the route is at U.S. Route 1 (US 1) and US 13 at the Oxford Circle in Philadelphia. The northern terminus is at PA 32 in the borough of New Hope, Bucks County, on the banks of the Delaware River. The route passes through the urban areas of Northeast Philadelphia as two-lane undivided Oxford Avenue, serving the Lawncrest, Burholme, and Fox Chase neighborhoods. Upon entering Montgomery County, PA 232 becomes a two- to four lane road called Huntingdon Pike that passes through suburban areas, serving the communities of Rockledge, Huntingdon Valley, and Bryn Athyn. The route passes through more suburban development in Bucks County as Second Street Pike, running through Southampton and Richboro. In Wrightstown Township, PA 232 enters rural areas and becomes Windy Bush Road as it heads north to New Hope.

South of Penns Park, the road was originally known as the Fox Chase and Huntingdon Valley Turnpike or the Second Street Turnpike, a turnpike that connected farms in Bucks County to Philadelphia. When Pennsylvania first created state highways, PA 232 was designated on its current route between PA 63 in Bethayres and PA 32 in New Hope, while Pennsylvania Route 163 was designated onto current PA 232 between PA 73 in Philadelphia and PA 63. PA 232 was extended south along PA 163 by 1940 and to the Oxford Circle by 1960.

Pennsylvania Route 106 (PA 106) is a 20.69-mile (33.30 km) long state highway located in both Susquehanna and Lackawanna counties in Pennsylvania. Route 106 begins at a fork from U.S. Route 11 in the community of Kingsley. The route heads southeasterly for most of its length, interchanging with Interstate 81 in Lenox Township. Route 106 continues into the city of Carbondale, where the designation terminates at U.S. Route 6 Business (North Main Street), the former alignment of U.S. Route 6 through Carbondale.

Route 106 is one of five portions of the original U.S. Route 106, a spur of U.S. Route 6 through Pennsylvania. Route 106 went from U.S. Route 309 in Wyalusing to the New York state line in Damascus Township along current-day Route 652. The designation was eliminated in 1972 and replaced by Route 106 from Kingsley to Carbondale, Route 652 from Indian Orchard to Darbytown and Route 706 from Wyalusing to Nichols.

Pennsylvania Route 152 (PA 152) is a 25.1-mile (40.4 km) long state highway located in the U.S. state of Pennsylvania. The route travels north–south from an interchange with PA 309 located in Cedarbrook, Montgomery County north to another interchange with PA 309 located northeast of Telford in Bucks County. PA 152 is known as Limekiln Pike for most of its length. From the southern terminus, the route passes through suburban areas to the north of Philadelphia, serving Dresher, Maple Glen, and Chalfont. North of Chalfont, PA 152 passes through rural suburbs of Philadelphia before reaching Silverdale. Past here, the road continues northwest through Perkasie, where it turns southwest and passes through Sellersville before reaching its northern terminus.

What is now PA 152 was originally Limekiln Road, a road built to transport lime from area kilns. The road was a turnpike between the 1850s and 1917. The route was first designated in 1928 to run from U.S. Route 611 (US 611) in North Philadelphia to PA 113 in Silverdale. PA 152 was extended north to US 309 in Sellersville in 1947, replacing the former routing of PA 413 between Perkasie and Sellersville. By 1960, the southern terminus of the route was cut back to its current location. PA 152 was extended west to end at PA 309 near Telford by 1970.

Pennsylvania Route 848 (designated by the Pennsylvania Department of Transportation as PA 848) is a 6.66-mile (10.72 km) long state highway located in Susquehanna County in Pennsylvania. The western terminus is at U.S. Route 11 just south of Route 492 in New Milford. The eastern terminus is at Route 547 in Gibson Township. Route 848 remains as a former portion of Route 371, which was originally designated in 1936 from New Milford to the New York state line. The highway was designated as Route 848 in 1961, seven years after it was truncated from New Milford.

Pennsylvania Route 183 (PA 183) is a 31.6-mile (50.9 km) long route that runs north to south in southeastern Pennsylvania. The southern terminus is at U.S. Route 422 Business (US 422 Bus.) in Reading in Berks County. Its northern terminus is at PA 61 near Schuylkill Haven in Schuylkill County. The road passes through developed areas near Reading before continuing north through rural areas, crossing from Berks County into Schuylkill County at Blue Mountain. PA 183 serves the communities of Bernville, Strausstown, and Cressona.

Much of what is now PA 183 was originally designated as part of Pennsylvania Route 83 in 1928, a route that ran from US 30/PA 1 in Devon northwest to US 120/PA 42 (now PA 61) near Schuylkill Haven. PA 83 was realigned to a more direct route in northern Berks County by 1960, bypassing a jog to the west through Rehrersburg. By 1966, PA 83 was renumbered to PA 183 to avoid duplication with Interstate 83 (I-83) and the southern terminus was cut back to its current location in Reading. The alignment of PA 83 between Devon and Reading became a part of other state routes, with some portions becoming unnumbered.

Pennsylvania Route 958 (also designated by the Pennsylvania Department of Transportation as SR 0958) is an 8.66-mile (13.94 km) long state highway located in Warren County, Pennsylvania. The designation's southern terminus is at an intersection with U.S. Route 6 in Pittsfield Township. The route heads through several small communities, including Lottsville, where it goes on a short concurrency with Pennsylvania Route 957. The northern terminus terminus is at the New York state line at Freehold Township, just east of Bear Lake. There, the route continues through New York as Chautauqua County Route 33. Route 958 was designated in 1928 as a connector from U.S. Route 6 to the community of Wrightsville, where the designation terminated. The route was extended northward along its current alignment in 1936 and has remained unchanged since.

The Pennsylvania Turnpike is a toll highway operated by the Pennsylvania Turnpike Commission in the U.S. state of Pennsylvania. A limited-access highway, it runs for 360 miles (580 km) across the state. The turnpike begins at the Ohio state line in Lawrence County, where the road continues west into Ohio as the Ohio Turnpike. It ends at the New Jersey border at the Delaware River – Turnpike Toll Bridge over the Delaware River in Bucks County, where it continues east as the Pearl Harbor Memorial Extension of the New Jersey Turnpike.

The highway runs east–west through the state, connecting the Pittsburgh, Harrisburg, and Philadelphia areas. It crosses the Appalachian Mountains in central Pennsylvania through four tunnels. The turnpike is part of the Interstate Highway System; it is designated as part of Interstate 76 (I-76) between the Ohio border and Valley Forge, I-70 and I-76 between New Stanton and Breezewood and I-276 between Valley Forge and the New Jersey border. The road uses a ticket system of tolling between the Warrendale and Delaware River Bridge toll plazas. An additional eastbound toll plaza is located at Gateway, near the Ohio border. E-ZPass, a form of electronic toll collection, is accepted at all toll plazas.

During the 1930s the Pennsylvania Turnpike was designed to improve automobile transportation across the mountains of Pennsylvania, using seven tunnels built for the abandoned South Pennsylvania Railroad in the 1880s. The road opened on October 1, 1940 between Irwin and Carlisle as the first long-distance limited-access highway in the United States, leading to the construction of other limited-access toll roads and the Interstate Highway System.

Following World War II, the turnpike was extended east to Valley Forge in 1950 and west to the Ohio border in 1951. In 1954, the road was extended further east to the Delaware River. The main turnpike was completed in 1956 with the completion of the Delaware River Bridge. During the 1960s an additional tube was bored at four of the two-lane tunnels, while the other three tunnels were bypassed; these improvements made the entire length of the highway four lanes wide. Improvements continue to be made to the road: rebuilding the original section to modern standards, widening portions of the turnpike to six lanes and adding interchanges.

Pennsylvania Route 143 (PA 143) is a 20-mile (32 km) long state highway in Pennsylvania. It runs from PA 662 in Richmond Township, Berks County northeast to PA 309 near New Tripoli in Lehigh County. The route passes through rural areas, intersecting Interstate 78 (I-78)/U.S. Route 22 (US 22) in Lenhartsville, PA 737 near Kempton, and PA 863 in Lynnport. What is now PA 143 north of Lenhartsville was originally designated Legislative Route 285 in 1911. PA 143 was designated to in 1928 to run from PA 43 in Lenhartsville to PA 29 near New Tripoli. The route was extended slightly east through New Tripoli by 1940 following a realignment of PA 29. PA 143 was extended south to PA 662 by 1966.

Pennsylvania Route 491 (PA 491) is a state highway in Delaware County, Pennsylvania. Also known as Naamans Creek Road, the route runs from U.S. Route 202 (US 202) in Concord Township east to the Delaware border in Lower Chichester Township, where the route continues as Delaware Route 491 (DE 491), a 0.36 mi (0.58 km) connector between the Pennsylvania border and Delaware Route 92 (DE 92) near Claymont, Delaware. PA 491 runs closely parallel to the Delaware border throughout its route. It intersects Pennsylvania Route 261 (PA 261) in the Booth Corner section of Bethel Township. The western portion of PA 491 was first designated as part of Legislative Route 135 in 1911. In the 1920s, the Delaware portion of road was built as a state highway while PA 491 was created in 1928.

Pennsylvania Route 132 (PA 132) is a state highway in southeast Pennsylvania. It runs northwest to southeast through Bucks County in suburban Philadelphia from PA 611 in Warrington Township to Interstate 95 (I-95) in Bensalem Township. It is a commercial route lined with shopping centers throughout much of its 15-mile (24 km) length. It is named Street Road and is five lanes wide for much of its length. It was also designated as the Armed Forces and Veterans Memorial Highway in 2005. From west to east, it crosses PA 263 and PA 332 in Warminster Township, PA 232 in Upper Southampton Township, PA 532 in Lower Southampton Township, and U.S. Route 1 (US 1), the Pennsylvania Turnpike (I-276), PA 513, and US 13 in Bensalem Township. Street Road was included in William Penn's survey plans and completed by 1737. The road was paved by 1911 and received the PA 132 designation by 1927. The road was widened into a multi-lane highway and extended to I-95 by 1970. An E-ZPass-only interchange with the Pennsylvania Turnpike opened in 2010.

Pennsylvania Route 332 (PA 332) is a state highway in the U.S. state of Pennsylvania. The route runs 17.5 miles (28.2 km) from PA 263 in Hatboro, Montgomery County east to PA 32 in Yardley, Bucks County. PA 332 runs through suburban areas to the north of Philadelphia, serving Warminster, Ivyland, Richboro, and Newtown. The route is two lanes wide most of its length, with the bypass around Newtown a four-lane divided highway. PA 332 intersects PA 132 in Warminster, PA 232 in Richboro, PA 413 and PA 532 in Newtown (all three run concurrently on the Newtown Bypass), and Interstate 95 (I-95) in Lower Makefield Township.

What would become PA 332 between Newtown and Yardley was designated part of Legislative Route 252 in 1911. PA 332 was created by 1930 to run from PA 263 in Hatboro east to Ivyland with the road between Newtown and Yardley designated as part of PA 532. By 1940, PA 332 was extended to PA 113 in Newtown. The route was extended to Yardley by 1950, replacing PA 532. PA 332 was routed to bypass Newtown in 1991 when the eastern portion of the Newtown Bypass was completed.

Pennsylvania Route 363 (PA 363) is a state highway located in Montgomery County, Pennsylvania that is a spur of PA 63. The route runs 11.86 mi (19.09 km) from an interchange with U.S. Route 422 (US 422) near Valley Forge northeast to PA 63 in Lansdale. The route runs through suburban areas of central Montgomery County, passing some farmland in Worcester Township. PA 363 is designated along Trooper Road, Ridge Pike, Park Avenue, and Valley Forge Road. In the community of Worcester, the route crosses PA 73.

PA 363 was first designated by the Pennsylvania Department of Highways in 1928 to run from PA 23 in Port Kennedy to PA 63 in Lansdale. Between the 1940s and the 1960s, PA 363 extended west on present-day PA 23 to end near Valley Forge. In the 1960s, the route was redirected to follow Gulph Road to US 202 in King of Prussia. By 1989, the south end of PA 363 was relocated to the US 422 interchange. The Betzwood Bridge, which had carried PA 363 over the Schuylkill River, was removed in the 1990s but is expected to be rebuilt.

Pennsylvania Route 663 (PA 663) is a 22.98-mile-long (36.98 km) state highway in Bucks and Montgomery counties in southeast Pennsylvania. Its northern terminus is at PA 309 and PA 313 in Quakertown, where it continues eastward as PA 313, and its southern terminus is at PA 100 in Pottstown. Along the way, PA 663 also passes through the town of Pennsburg. It is called John Fries Highway between Pennsburg and Quakertown. It has an interchange with Interstate 476 (I-476, the Northeast Extension of the Pennsylvania Turnpike) at exit 44 west of Quakertown. The route was assigned in 1930, and it has had several realignments since its commissioning, including two major ones.

Pennsylvania Route 179 (PA 179) and Route 179 is an 8.77-mile (14.11 km) state highway in Bucks County, Pennsylvania and Hunterdon County, New Jersey, United States, running along an old alignment of U.S. Route 202 (US 202) from west of New Hope, Pennsylvania northeast through Lambertville, New Jersey to Ringoes, where it ends at an intersection with US 202 and Route 31. Past this intersection, the road continues east as County Route 514 (CR 514). It is two-lane, undivided highway for most of its length with the exception of a four-lane stretch in Lambertville. The route crosses the Delaware River on the New Hope-Lambertville Bridge, where the designation changes from PA 179 to Route 179.

PA 179 and Route 179 follow a part of the 18th-century Old York Road which ran between Philadelphia and New York City. Prior to 1953, the road was Route S29 from the Delaware River to downtown Lambertville, a part of Route 29 between Lambertville and Ringoes, and a concurrency of Route 29 and Route 30 in Ringoes. The route was also part of US 202, which was designated over 1926-created US 122 in the mid-1930s. In 1953, the Route S29 and 29 designations were removed in favor of US 202 and Route 30 became Route 69 (now Route 31). Route 179 was formed in 1965 when a bypass for Ringoes was built for US 202 and Route 69. Route 179 extended to Lambertville and PA 179 was created in 1974 when the new US 202 freeway, running over the New Hope-Lambertville Toll Bridge, was completed.

Pennsylvania Route 115 (PA 115) is a 35.7-mile-long (57.5 km)^* north–south state highway in eastern Pennsylvania. It stretches from U.S. Route 209 (US 209) in Brodheadsville, Monroe County to Interstate 81 (I-81) and PA 309 near Wilkes-Barre in Luzerne County. PA 115 passes through rural areas along its route, intersecting PA 903 in Tunkhannock Township, I-80 and PA 940 in Tobyhanna Township, and I-476 (Pennsylvania Turnpike Northeast Extension) in Bear Creek Township. The road serves as a connector between The Poconos and the Wyoming Valley.

The road originated as the Sullivan Trail, a route that follows the path taken by General John Sullivan during his expedition in the American Revolutionary War. The Sullivan Trail later became known as the Easton and Wilkes-Barre Turnpike, a turnpike that connected Easton and Wilkes-Barre between 1815 and the 1850s. PA 115 was designated in 1928 to run from Montoursville east to Swiftwater. By 1937, the termini were realigned from Montoursville to Mausdale and from Swiftwater to Easton. PA 115 was extended west to Milton by 1950. The northern terminus was realigned to Hughesville by 1960, the same time a portion of the route from Saylorsburg to Wind Gap was relocated to a freeway alignment. PA 115's northern terminus was cut back to the Wilkes-Barre area in 1962. The southern terminus was rolled back to Brodheadsville by 1972. PA 115 has had its northern terminus in various locations in the Wilkes-Barre area from 1962 to 1990; finally being moved to its current location in 1990.

Pennsylvania Route 97 (PA 97) is a state highway in the U.S. state of Pennsylvania. Known for most of its length as Baltimore Pike, the highway runs 9.363 miles (15.068 km) from the Maryland state line near Littlestown, where the highway continues as Maryland Route 97 (MD 97), northwest to U.S. Route 15 (US 15) near Gettysburg. PA 97 connects Gettysburg and Littlestown in southeastern Adams County. The highway also links those communities with Westminster and Baltimore. From PA 97's northern end, Baltimore Pike continues toward Gettysburg through the Gettysburg Battlefield Historic District, where it provides access to the Gettysburg Museum and Visitor Center.

Baltimore Pike was built as a turnpike in the early 19th century to connect Gettysburg, Littlestown, and Baltimore. The turnpike was a prominent linear feature during the 1863 Battle of Gettysburg despite not being the focus of a particular skirmish. Baltimore Pike was designated one of the original legislative routes in the early 1910s and became the northernmost part of US 140 in the late 1920s. The U.S. Highway was widened and resurfaced in the 1940s. When the US 140 designation was retired in the late 1970s, the highway became PA 97 to match the adjacent Maryland highway. PA 97's northern end was moved from Gettysburg to its present location at US 15 in the late 1980s.

Delaware Route 261 (DE 261) and Pennsylvania Route 261 (PA 261), also known as Foulk Road, is a 6.88-mile (11.07 km) state highway running through Delaware and Pennsylvania. DE 261 runs 4.62 miles (7.44 km) through New Castle County, Delaware from an interchange with U.S. Route 202 (US 202) and DE 141 north of Interstate 95 (I-95) near Fairfax, Delaware, a community north of Wilmington, northeast to the Pennsylvania state line. The road runs through suburban areas of Brandywine Hundred as a four-lane road south of DE 92 and a two-lane road north of DE 92. At the Pennsylvania state line, Foulk Road becomes PA 261 and continues 2.26 miles (3.64 km) through Bethel Township in Delaware County, intersecting PA 491 in Booths Corner before ending at an interchange with US 322.

DE 261 was originally designated along Foulk Road in the 1930s. In the 1960s, most of the route was widened into a four-lane road. The southern terminus at US 202 was reconstructed into an interchange in the 2000s. PA 261 was first designated in 1928 along Foulk Road between the Delaware border and PA 61 and PA 161 in Chelsea. The route was extended north along Valley Brook Road to US 1 in Chester Heights by 1940. The northern terminus of PA 261 was moved to its current location by 1980.

Interstate 476 (I-476) is a 132.10-mile (212.59 km) auxiliary Interstate Highway in the U.S. state of Pennsylvania designated between Interstate 95 near Chester and Interstate 81 near Scranton, serving as the primary north–south Interstate corridor through eastern Pennsylvania. It consists of both the 20-mile (32.19 km) Mid-County Expressway, locally referred to as the "Blue Route" (although no signs exist with that designation), through the suburban Philadelphia-area counties of Delaware and Montgomery, and the 110.6-mile (177.99 km) Northeast Extension of the Pennsylvania Turnpike connecting the Philadelphia metropolitan area with the Lehigh Valley, the Poconos, and the Wyoming Valley. The Blue Route passes through suburban areas, while the Northeast Extension predominantly runs through rural areas of mountains and farmland, with development closer to Philadelphia and in the Lehigh Valley and the Wyoming Valley. I-476 intersects many major roads including Interstate 76 (the Schuylkill Expressway) in West Conshohocken, Interstate 276 (the Pennsylvania Turnpike) in Plymouth Meeting, U.S. Route 22 near Allentown, and Interstate 80 near Hickory Run State Park.

While proposed as early as 1929, the construction of the Mid-County Expressway through did not begin until 1967 and was not completed until 1991 due to massive community and environmental opposition during the freeway revolts of the 1960s and 1970s, leading The Philadelphia Inquirer to dub it "the most costly, most bitterly opposed highway in Pennsylvania history." In order to get the route through Delaware County, it was built with many environmental compromises such as a parkway design and four lanes south of the Pennsylvania Route 3 interchange. The Mid-County Expressway received its "Blue Route" nickname from the chosen route through Delaware County on planning maps on which it was differentiated from the other proposed routes by its color.

Following the completion of the Mid-County Expressway, in 1996 the Interstate 476 designation was extended to include the entire length of the existing Northeast Extension, replacing PA 9. The Northeast Extension was built between 1955 and 1957 and was originally projected to continue past Clarks Summit to the New York border; however, I-81 was built between these two points instead. Since the extension, I-476 has been the longest auxiliary Interstate Highway in the United States. In fact, it is longer than some main-line interstates such as Interstate 83 in Maryland and Pennsylvania, Interstate 99 in Pennsylvania, Interstate 12 in Louisiana, Interstate 19 in Arizona and Interstate 97 in Maryland. Additionally, its numbering is unusual since auxiliary interstates beginning in even numbers are typically bypasses or loops rather than spurs.

Pennsylvania Route 39 (PA 39) is an east–west state highway in Dauphin County, Pennsylvania, in the United States, established in 1937. Extending 17.68 miles (28.45 km), it starts at North Front Street, north of Harrisburg, and ends at U.S. Route 322 and U.S. Route 422 near Hummelstown and Hershey. PA 39 is known as Linglestown Road west of Interstate 81 (I-81), as Hershey Road from I-81 to Hersheypark Drive, and as Hersheypark Drive south of Hershey Road. The route passes through the northern and eastern suburbs of Harrisburg and passes by Hersheypark and Giant Center, as well as the primary production factory for The Hershey Company.

Little is known about the creation of PA 39 as a route because it was not designated in any legislative bill from the Pennsylvania General Assembly. It was designated by the forerunner to PennDOT, the Pennsylvania Department of Highways, at their discresion. PA 39, in the 1920s, had previously been designated as a route in northeastern Pennsylvania, but that designation was deleted when it was renumbered US 11. As a result, PA 39 is one of a few routes which has a set of child routes which are no where near the primary route.

The Linglestown–Manada Hill portion of PA 39 was originally part of Legislative Route 140, one of hundreds of unsigned legislative routes created by the Sproul Road Bill in 1911. LR 140 was later rerouted to bypass Linglestown to the south, and the Paxtonia–Lower Paxton Township portion of its former routing became LR 140A. This legislative route was initially signed solely as PA 894. PA 39 was assigned in the 1930s to the portion of LR 140A east of Linglestown—overlapping PA 894—and also to LR 22006 between the Susquehanna River and Manadahill. The PA 894 designation was later removed.

PA 39 was extended southward to the vicinity of Hummelstown in two stages. The first extension during the 1940s shifted PA 39's eastern terminus to the junction of Hershey Road and Allentown Boulevard (U.S. Route 22) south of Manadahill. Its terminus was moved to its present location in the early 1960s. Only local realignments and improvements have occurred since.