From the 1911 passage of the Sproul Road Bill to the 1987 adoption of the Location Referencing System, all state highways in the U.S. state of Pennsylvania were defined as legislative routes, while some were also posted as Traffic Routes. Major routes were assigned three- or four-digit numbers, while minor routes were given five-digit numbers in which the first two digits represented the county, in alphabetical order from 1 (Adams) to 66 (York). (Philadelphia County was initially skipped, but later assigned the number 67.) State-aid projects, which were carried out even before 1911, received their own permanent numbers - State Aid Application X (SAA X or A-X). Many short routes or realignments were defined as spur or parallel routes to another route.
Often a route remained on its old alignment, while the signed Traffic Route was moved to a newer bypass with a different number.
Pennsylvania Route 39 (PA 39) is a 17.83-mile-long (28.69 km) state highway located in Dauphin County, Pennsylvania, United States. PA 39 runs from North Front Street near Harrisburg east to U.S. Route 322 (US 322) and US 422 near Hummelstown and Hershey. The route passes through the northern and eastern suburbs of Harrisburg and passes by Hersheypark, Giant Center, as well as the primary production factory for The Hershey Company. Between Harrisburg and Manada Hill, it is known as Linglestown Road, from Manada Hill to Hershey as Hershey Road and from Hershey to near Hummelstown and Hershey as Hersheypark Drive. Prior to the establishment of PA 39 in 1937, PA 39, had previously been designated as a route in northeastern Pennsylvania during the 1920s. 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.
Pennsylvania Route 25 is a 35-mile-long (56 km) state highway located in Dauphin and Schuylkill counties in central Pennsylvania. The western terminus of the route is at U.S. Route 209 in Millersburg. The eastern terminus is at US 209 in Newtown. PA 25 runs parallel to the Mahantongo Mountains and the Mahantango Valley, as well as US 209, for its entire length. The route passes through the communities of Berrysburg, Gratz, Sacramento, and Hegins. PA 25 intersects PA 225 in Berrysburg, PA 125 in Hegins, and Interstate 81 (I-81) in Frailey Township. PA 25 was designated in 1928 to run from US 209 in Millersburg east to PA 443 in Pine Grove, running east to Hegins before heading southeast to Tremont and south to Pine Grove. The road between Hegins and Newtown was designated as PA 125. PA 25 was realigned to head east from Hegins to Newtown in the 1930s, with the former alignment between Pine Grove and Hegins becoming a relocated PA 125.
Pennsylvania Route 743 is a north–south state route located in central Pennsylvania. The southern terminus is at PA 441 in Marietta. The northern terminus is at U.S. Route 22 near the East Hanover Township hamlet of Grantville though some signage has it continue north past Interstate 81 (I-81) to PA 443. The route runs north through Lancaster County, passing through Maytown before reaching Elizabethtown. Here, the route has concurrencies with PA 230 and PA 241 and comes to an interchange with the PA 283 freeway. PA 743 continues into Dauphin County and crosses PA 341 before reaching Hershey. In Hershey, the route follows Cocoa Avenue between US 322 and US 422, the latter which is known as Chocolate Avenue. PA 743 follows Park Avenue north past Hersheypark and Hersheypark Drive east before heading north on Laudermilch Road from Hershey to Grantville.
Pennsylvania Route 341 is a state highway in the U.S. state of Pennsylvania. The route runs 10.7 miles (17.2 km) from PA 230 in Londonderry Township in Dauphin County east to PA 241 in South Londonderry Township in Lebanon County. The route is a two-lane undivided road known as Colebrook Road for its entire length, passing through rural areas. Along the way, PA 341 crosses PA 743 near Deodate and passes through Upper Lawn. An eastbound truck route, PA 341 Truck, bypasses the route between PA 230 and PA 743. PA 341 was first designated onto its current alignment by 1930, running between U.S. Route 230 and PA 241. The route was fully paved in the 1930s. Between the 1930s and 1940s, PA 341 headed southeast along Lawn Road to end at PA 241 in Lawn.
Pennsylvania Route 148 is a 6.50-mile-long (10.46 km), north–south state highway located in Allegheny County, Pennsylvania. The southern terminus is at PA 48 in McKeesport. The northern terminus is at U.S. Route 30 in East McKeesport.
Pennsylvania Route 225 is a 48.5-mile-long (78.1 km) state highway located in Dauphin and Northumberland Counties in Pennsylvania. The southern terminus is at an interchange with U.S. Route 22 /US 322 in Dauphin. The northern terminus is at PA 61 in Shamokin. PA 225 is mostly a two-lane undivided road running through mountain and valley areas in the central part of the state. The route serves the communities of Halifax, Elizabethville, Berrysburg, Pillow, and Trevorton. PA 225 intersects PA 325 north of Dauphin, PA 147 in Halifax, US 209 in Elizabethville, PA 25 in Berrysburg, and PA 890 in Trevorton.
Pennsylvania Route 268 is a 35-mile-long (56 km) state highway that is located in Armstrong, Butler, and Venango counties in Pennsylvania.
Pennsylvania Route 285 is an 27.1-mile-long (43.6 km), east–west state highway located in Crawford County in Pennsylvania, United States. The western terminus is the Ohio state line on Lake Pymatuning, where the road becomes Ohio State Route 85. The eastern terminus is at PA 173 in Cochranton.
Pennsylvania Route 325 is a 30-mile-long (48 km) state highway located in Dauphin and Schuylkill counties in Pennsylvania. The western terminus is at Riverview Road just past an interchange with U.S. Route 22 /US 322 in the community of Speeceville in Middle Paxton Township. The eastern terminus is at US 209 in Tower City. PA 325 runs through a narrow valley for its length, passing through forested areas with some farmland. The route forms a concurrency with PA 225 to the north of Dauphin. The road was paved in stages between 1930 and the 1940s. PA 325 was designated in the 1940s to run between US 22/US 322/PA 14 in Speeceville east to US 209 in Tower City. In 1999, an interchange with US 22/US 322 was constructed near the western terminus; the end of PA 325 remained at Riverview Road, the former alignment of US 22/US 322.
Pennsylvania Route 331 is a 14.5-mile-long (23.3 km), east–west state highway located in Washington County, Pennsylvania. The western terminus is at the West Virginia state line in Independence Township where the road continues as West Virginia Route 67. The eastern terminus is at PA 844 in Canton Township. PA 331 was initially established on May 27, 1935. The route was rerouted in the 2000s following the closure of a bridge over Buffalo Creek.
State Route 1005 is a short, 3.3-mile-long (5.3 km) road located in Delaware County in Pennsylvania.
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 are signed as Interstate Highways, U.S. Routes and Pennsylvania Routes, and are prefixed with one to three zeroes to give a four-digit number. PA Routes are also called Pennsylvania Traffic Routes, and formerly State Highway Routes.
Pennsylvania Route 711 is a 55-mile-long (89 km), north–south state highway that is located in Fayette, Westmoreland, and Indiana counties in Pennsylvania in the United States.
Pennsylvania Route 729 is a 22.07-mile-long (35.52 km), north–south state highway located in Clearfield County, Pennsylvania. The southern terminus is at PA 253/PA 453 in Gulich Township. The northern terminus is at US 219/PA 879 in Grampain.
Pennsylvania Route 770 is a 12-mile-long (19 km), east–west state highway that is located in McKean County in Pennsylvania.
Pennsylvania Route 849 is a 24.8-mile-long (39.9 km) state highway located in Perry and Dauphin counties in Pennsylvania. The western terminus is at PA 74 in Saville Township, Perry County. The eastern terminus is at U.S. Route 22 /US 322 in Reed Township, Dauphin County, near Duncannon. PA 849 winds east from PA 74 through farms and woods to Newport, where it forms a concurrency with PA 34. From Newport, the route heads southeast through more rural land to Duncannon, where it turns east and crosses the Juniata River to reach its terminus at US 22/US 322 just north of the Susquehanna River.
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