Das Pennsylvania Department of Transportation (PennDOT) ist verantwortlich für die Instandhaltung sowie die Klassifizierung des Straßennetzes in Pennsylvania. Das Straßennetz umfasst Interstate Highways, U.S. Routes sowie Pennsylvania Routes.
Interstate Highways Name Länge (mi.) Länge (km) Beginn Ende Bemerkungen20px|Interstate 70|link=Interstate 70 Interstate 70174280Grenze zu West Virginia bei West AlexanderGrenze zu Maryland bei WarfordsburgPennsylvania TurnpikeDwight D. Eisenhower Highway20px|Interstate 76|link=Interstate 76 (Ost) Interstate 76353568Grenze zu Ohio bei New CastleGrenze zu New Jersey am Delaware RiverPennsylvania TurnpikeSchuylkill Expressway20px|Interstate 78|link=Interstate 78 Interstate 7878126HarrisburgGrenze zu New Jersey am Delaware River78th Division Highway20px|Interstate 79|link=Interstate 79 Interstate 79183295Grenze zu West Virginia bei Mount MorrisErieRaymond P. Shafer Highway20px|Interstate 80|link=Interstate 80 Interstate 80311501Grenze zu Ohio bei WheatlandGrenze zu New Jersey am Delaware RiverKeystone ShortwayZ. H. Confair Memorial Highway20px|Interstate 81|link=Interstate 81 Interstate 81233375Grenze zu Maryland bei GreencastleGrenze zu New York bei Great BendAmerican Legion Memorial Highway20px|Interstate 83|link=Interstate 83 Interstate 835080Grenze zu Maryland bei Shrewsbury20px|Interstate 78|link=Interstate 78 20px|Interstate 81|link=Interstate 81 bei HarrisburgVeterans of Foreign Wars of the United States Memorial Highway20px|Interstate 84|link=Interstate 84 (Ost) Interstate 84548720px|Interstate 81|link=Interstate 81 bei DunmoreGrenze zu New York bei MatamorasFallen Trooper Memorial Highway20px|Interstate 86|link=Interstate 86 (Ost) Interstate 86711ErieGrenze zu New York bei North EastHopkins-Bowser Highway20px|Interstate 90|link=Interstate 90 Interstate 904674Grenze zu Ohio bei West SpringfieldGrenze zu New York bei North EastAMVETS Memorial Highway20px|Interstate 95|link=Interstate 95 Interstate 955182Grenze zu Delaware in Marcus HookGrenze zu New Jersey in YardleyVietnam Veterans Memorial Highway20px|Interstate 99|link=Interstate 99 Interstate 998613820px|U.S. Route 220|link=U.S. Highway 220 bei BedfordBellefonteBud Shuster HighwayAppalachian Thruway20px|Interstate 176|link=Interstate 176 Interstate 176121920px|Interstate 76|link=Interstate 76 (Ost) in Morgantown20px|U.S. Route 422|link=U.S. Highway 422 in ReadingMorgantown Expressway20px|Interstate 276|link=Interstate 276 Interstate 276335320px|Interstate 76|link=Interstate 76 (Ost) in King of PrussiaGrenze zu New Jersey in BristolPennsylvania Turnpike20px|Interstate 376|link=Interstate 376 Interstate 3768513720px|Interstate 80|link=Interstate 80 in West Middlesex20px|Interstate 76|link=Interstate 76 (Ost) in Monroeville"Beaver Valley ExpresswayJames E. Ross HighwayPenn-Lincoln Parkway20px|Interstate 476|link=Interstate 476 Interstate 47613221220px|Interstate 95|link=Interstate 95 in Chester20px|Interstate 81|link=Interstate 81 20px|U.S. Route 6|link=U.S. Highway 6 20px|U.S. Route 11|link=U.S. Highway 11 in Clarks SummitVeterans Memorial HighwayPennsylvania Turnpike Northeast Extension20px|Interstate 676|link=Interstate 676 Interstate 6763520px|Interstate 76|link=Interstate 76 (Ost) in Philadelphia20px|Interstate 95|link=Interstate 95 in PhiladelphiaVine Street Expressway20px|Interstate 279|link=Interstate 279 Interstate 279132120px|Interstate 376|link=Interstate 376 20px|U.S. Route 22|link=U.S. Highway 22 20px|U.S. Route 30|link=U.S. Highway 30 in Pittsburgh20px|Interstate 95|link=Interstate 95 in Franklin ParkNorth Shore ExpresswayEast Street Valley ExpresswayNorth Hills Expressway20px|Interstate 579|link=Interstate 579 Interstate 57923Pittsburgh20px|Interstate 279|link=Interstate 279 in PittsburghCrosstown Boulevard20px|Interstate 180|link=Interstate 180 (Pennsylvania) Interstate 180294720px|U.S. Route 15|link=U.S. Highway 15 20px|U.S. Route 220|link=U.S. Highway 220 in Williamsport20px|Interstate 80|link=Interstate 80 in Milton20px|Interstate 380|link=Interstate 380 (Pennsylvania) Interstate 380284520px|Interstate 80|link=Interstate 80 in Crescent Lake20px|Interstate 81|link=Interstate 81 in Scranton20px|Interstate 283|link=Interstate 283 Interstate 2833520px|Interstate 76|link=Interstate 76 (Ost) in High Spire20px|Interstate 83|link=Interstate 83 in Paxtang
U.S. Routes Name Länge (mi.) Länge (km) Beginn Ende Bemerkungen20px|U.S. Route 1|link=U.S. Highway 1 U.S. Route 181130Grenze zu Maryland in SylmarGrenze zu New Jersey in MorrisvilleJohn H. Ware III Memorial HighwayRoosevelt BoulevardMartin Luther King Jr. Expressway20px|U.S. Route 6|link=U.S. Highway 6 U.S. Route 6394634Grenze zu Ohio bei PennlineGrenze zu New York bei MatamorasGrand Army of the Republic Highway20px|U.S. Route 11|link=U.S. Highway 11 U.S. Route 11247398Grenze zu Maryland in State LineGrenze zu New York bei Great Bend20px|U.S. Route 13|link=U.S. Highway 13 U.S. Route 134979Grenze zu Delaware in Marcus Hook20px|U.S. Route 1|link=U.S. Highway 1 in Morrisville20px|U.S. Route 15|link=U.S. Highway 15 U.S. Route 15189304Grenze zu Maryland bei FairplayGrenze zu New York bei LawrencevilleMarine Corps League Memorial Highway20px|U.S. Route 19|link=U.S. Highway 19 U.S. Route 19188303Grenze zu West Virginia bei Mount MorrisErieWilliam Flinn HighwayPerry Highway20px|U.S. Route 20|link=U.S. Highway 20 U.S. Route 204572Grenze zu Ohio bei West SpringfieldGrenze zu New York bei State LineUlysses S. Grant Highway20px|U.S. Route 22|link=U.S. Highway 22 U.S. Route 22319513Grenze zu West Virginia bei ParisGrenze zu New Jersey in EastonWilliam Penn Highway20px|U.S. Route 30|link=U.S. Highway 30 U.S. Route 30324521Grenze zu West Virginia bei HookstownGrenze zu New Jersey in PhiladelphiaLincoln Highway20px|U.S. Route 40|link=U.S. Highway 40 U.S. Route 4083134Grenze zu Ohio bei West AlexanderGrenze zu Maryland bei AddisonNational Road20px|U.S. Route 62|link=U.S. Highway 62 U.S. Route 62115185Grenze zu Ohio in SharonGrenze zu New York bei Russell20px|U.S. Route 119|link=U.S. Highway 119 U.S. Route 119129208Grenze zu West Virginia bei Point Marion20px|U.S. Route 219|link=U.S. Highway 219 bei DuBois20px|U.S. Route 202|link=U.S. Highway 202 U.S. Route 2025995Grenze zu Delaware bei Johnson CornersGrenze zu New Jersey in New Hope20px|U.S. Route 206|link=U.S. Highway 206 U.S. Route 2060,4120px|U.S. Route 209|link=U.S. Highway 209 bei Delaware Water Gap National Recreation AreaGrenze zu New Jersey bei Delaware Water Gap National Recreation Area20px|U.S. Route 209|link=U.S. Highway 209 U.S. Route 209149240MillersburgGrenze zu New York bei Matamoras20px|U.S. Route 219|link=U.S. Highway 219 U.S. Route 219208335Grenze zu New York bei Foster BrookeGrenze zu Maryland bei SalisburyNorth Star WayBuffalo-Pittsburgh Highway20px|U.S. Route 220|link=U.S. Highway 220 U.S. Route 220238383Grenze zu Maryland bei CentervilleGrenze zu New York bei South WaverlyAppalachian ThruwayBud Shuster Highway20px|U.S. Route 222|link=U.S. Highway 222 U.S. Route 22290145Grenze zu Maryland bei Wakefield20px|Interstate 78|link=Interstate 78 bei Allentown20px|U.S. Route 224|link=U.S. Highway 224 U.S. Route 2241016Grenze zu Ohio bei PeanutNew CastleYoungstown-Poland RoadState Street20px|U.S. Route 322|link=U.S. Highway 322 U.S. Route 322357575Grenze zu Ohio bei TurnersvilleGrenze zu New Jersey bei Chester28th Division Highway20px|U.S. Route 422|link=U.S. Highway 422 U.S. Route 4228213220px|U.S. Route 322|link=U.S. Highway 322 bei Hershey20px|U.S. Route 322|link=U.S. Highway 322 in King of PrussiaBenjamin Franklin Highway20px|U.S. Route 522|link=U.S. Highway 522 U.S. Route 522127204Grenze zu Maryland bei Warfordsburg20px|U.S. Route 11|link=U.S. Highway 11 20px|U.S. Route 15|link=U.S. Highway 15 in SelinsgroveGreat Cove Road Croghan Pike
Pennsylvania Routes 1 – 100