The list of Interstate Highways in Pennsylvania encompasses 23 Interstate Highways—12 primary routes and 11 auxiliary routes—which exist entirely or partially in the U.S. state of

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, ...

. In Pennsylvania, most of the Interstate Highways are maintained by 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). Some stretches are also maintained by the

Pennsylvania Turnpike Commission The Pennsylvania Turnpike Commission (PTC) is an agency created in 1937 to construct, finance, operate, and maintain the Pennsylvania Turnpike (both the mainline and the Northeast Extension). The commission consists of five members. Four membe ...

Delaware River Port Authority The Delaware River Port Authority (DRPA), officially the Delaware River Port Authority of Pennsylvania and New Jersey, is a bi-state agency instrumentality created by a congressionally approved interstate compact between the governments of Pen ...

, the

Delaware River Joint Toll Bridge Commission The Delaware River Joint Toll Bridge Commission (DRJTBC) is a bistate, public agency that maintains and operates river crossings connecting the U.S. states of Pennsylvania and New Jersey. The agency's jurisdiction stretches roughly along the Dela ...

, and two short stretches maintained by the New York State Department of Transportation (these being the Delaware River bridge on Interstate 84 (I-84) and a short stretch of the future

I-86 Interstate 86 may refer to any of three unconnected Interstate Highways in the United States: * Interstate 86 (Pennsylvania–New York) * Interstate 86 (Idaho) * Interstate 84 (Pennsylvania–Massachusetts) Interstate 84 (I-84) is an I ...

in Bradford County). Interstate Highways make up three percent of all roadway lane miles in Pennsylvania and have a combined length of within the state. Twenty-four percent of all vehicle traffic is on the Interstate System. __TOC__

Primary Interstate Highways

Auxiliary Interstate Highways

Business routes

Gallery

File:Entering Pennsylvania on I-86 west.jpg, Entering Pennsylvania on I-86 westbound in Erie County File:2020-07-12 09 45 32 View south along Interstate 95 (Pennsylvania Turnpike Delaware River Extension) at Exit 40 (Interstate 276 WEST-Pennsylvania Turnpike, Harrisburg) in Bristol Township, Bucks County, Pennsylvania.jpg, I-95 at I-276 exit File:Int90eRoadPA-Exit22AB-Int79ns (32528708502).jpg, I-90 at I-79 exit File:Interstate 78 and 81 junction, northbound.jpg, I-81 at I-78 exit File:2015-12-14 12 41 37 View north along Interstate 99 and U.S. Route 220 at Exit 73 (East U.S. Route 322, Penn State University, State College) in College Township, Pennsylvania.jpg, I-99 to I-80 File:Interstate 176 northern terminus.JPG, I-176 end at US 422 File:Pavement markings I-283 & I-83.jpg, I-83 and I-283 File:I-476 north of US 1.JPG, I-476 north of US 1 File:376 00.jpg, I-376 in Pittsburgh File:Breezewood Exit.jpg, I-70 and I-76 at eastern split File:I-76 WB at I-676-US 30 interchange.jpeg, I-76 approaching I-676 file:Interstate7079Washington.jpg, I-79 at I-70

References

External links