Pennsylvania Route 478 (PA 478) is a 2.20-mile-long (3.54 km) state highway located in Clarion and Venango counties. The highway begins at an intersection with PA 38 and PA 208 northeast of Emlenton. The highway serves the eastbound interchange for Exit 45 on Interstate 80 (I-80) and terminates at PA 58 in St. Petersburg.
The alignment of PA 478 began as part of the former alignment of PA 238 until 1936, when PA 378 was designated on the alignment. In 1961, to avoid duplication with the newly numbered I-378 in Bethlehem, the route was redesignated as PA 478.
PA 478 begins at an intersection with PA 38 and its concurrency with PA 208 northeast of the borough of Emlenton. The highway progresses to the southeast, crossing into Clarion County. There, PA 478 enters a partial interchange with I-80, intersecting with the westbound ramps for Exit 45. After I-80, PA 478 turns from its southward progression to the southeast, crossing through dense forestry. The highway soon turns back to the south, paralleling Freeman Road and entering the borough of St. Petersburg. In St. Petersburg, PA 478 becomes Salem Avenue, progressing southeast through residential homes and terminating at an intersection with PA 58 (Main Street).[2]
The alignment of PA 478 began in the 1928 numbering of state highways as an unnumbered state highway.[3] However, the next year, the alignment was designated as part of PA 238, which ran from Saint Petersburg to Shippensville.[4] This lasted only seven years, when PA 238 was realigned to terminate in Mariasville. In 1936, the alignment was replaced with PA 378,[5] which remained intact as its alignment designation until 1961, when I-378 was designated for a freeway in Bethlehem. To avoid duplication, PA 378 was replaced with PA 478, a designation that had been unused until that point. The alignment has remained intact since.[6]
pennsylvania, route, mile, long, state, highway, located, clarion, venango, counties, highway, begins, intersection, with, northeast, emlenton, highway, serves, eastbound, interchange, exit, interstate, terminates, petersburg, route, informationmaintained, pen. Pennsylvania Route 478 PA 478 is a 2 20 mile long 3 54 km state highway located in Clarion and Venango counties The highway begins at an intersection with PA 38 and PA 208 northeast of Emlenton The highway serves the eastbound interchange for Exit 45 on Interstate 80 I 80 and terminates at PA 58 in St Petersburg Pennsylvania Route 478Route informationMaintained by PennDOTLength2 20 mi 1 3 54 km Existed1961 presentMajor junctionsWest endPA 38 PA 208 near EmlentonMajor intersectionsI 80 near EmlentonEast endPA 58 in St PetersburgLocationCountryUnited StatesStatePennsylvaniaCountiesClarion VenangoHighway systemPennsylvania State Route System Interstate US State Scenic Legislative PA 477 I 479 The alignment of PA 478 began as part of the former alignment of PA 238 until 1936 when PA 378 was designated on the alignment In 1961 to avoid duplication with the newly numbered I 378 in Bethlehem the route was redesignated as PA 478 Contents 1 Route description 2 History 3 Major intersections 4 See also 5 References 6 External linksRoute description edit nbsp PA 478 westbound past PA 58 in St Petersburg PA 478 begins at an intersection with PA 38 and its concurrency with PA 208 northeast of the borough of Emlenton The highway progresses to the southeast crossing into Clarion County There PA 478 enters a partial interchange with I 80 intersecting with the westbound ramps for Exit 45 After I 80 PA 478 turns from its southward progression to the southeast crossing through dense forestry The highway soon turns back to the south paralleling Freeman Road and entering the borough of St Petersburg In St Petersburg PA 478 becomes Salem Avenue progressing southeast through residential homes and terminating at an intersection with PA 58 Main Street 2 History edit nbsp Pennsylvania Route 378LocationEmlenton St PetersburgExisted1936 1961 The alignment of PA 478 began in the 1928 numbering of state highways as an unnumbered state highway 3 However the next year the alignment was designated as part of PA 238 which ran from Saint Petersburg to Shippensville 4 This lasted only seven years when PA 238 was realigned to terminate in Mariasville In 1936 the alignment was replaced with PA 378 5 which remained intact as its alignment designation until 1961 when I 378 was designated for a freeway in Bethlehem To avoid duplication PA 378 was replaced with PA 478 a designation that had been unused until that point The alignment has remained intact since 6 Major intersections editCountyLocationmi 1 kmDestinationsNotes VenangoRichland Township0 000 00 nbsp nbsp nbsp nbsp nbsp PA 38 PA 208 to I 80 west Emlenton Knox SharonWestern terminus ClarionRichland Township0 240 39 nbsp nbsp I 80 east ClarionExit 45 I 80 access to and from I 80 eastbound only St Petersburg2 203 54 nbsp PA 58 Main Street Sligo FoxburgEastern terminus 1 000 mi 1 609 km 1 000 km 0 621 mi Incomplete accessSee also edit nbsp U S Roads portal nbsp Pennsylvania portalReferences edit a b Pennsylvania State Roads 2010 Harrisburg Pennsylvania Pennsylvania Department of Transportation 2010 Microsoft Nokia July 15 2015 Overview map of Route 478 Map Bing Maps Microsoft Retrieved July 15 2015 Map Showing Pennsylvania State Highways Map Pennsylvania Department of Highways 1928 Map Showing Pennsylvania State Highways Map Pennsylvania Department of Highways 1929 Map Showing Pennsylvania State Highways Map Pennsylvania Department of Highways 1936 Pennsylvania Official Road Map Map Pennsylvania Department of Highways 1961 External links edit nbsp Wikimedia Commons has media related to Pennsylvania Route 478 KML file edit help Template Attached KML Pennsylvania Route 478KML is from Wikidata Pennsylvania Highways PA 478 Retrieved from https en wikipedia org w index php title Pennsylvania Route 478 amp oldid 1183961536, wikipedia, wiki, book, books, library,
