Keystone Shortway

Interstate 80
Keystone Shortway Z.H. Confair Memorial Highway
Route information
Maintained by PennDOT
Length:	311.07 mi (500.62 km)
Major junctions
West end:	I-80 at Ohio state line in Shenango Township
	I-376 / PA 760 near Sharon I-79 near Mercer Future I‑99 / US 220 / PA 26 near Bellefonte US 15 near New Columbia I-180 / PA 147 in Milton US 11 in Lime Ridge I-81 near Hazleton I-476 / Penna Turnpike NE Extension / PA 940 near Hickory Run State Park I-380 in Tunkhannock Township
East end:	I-80 at New Jersey state line in Delaware Water Gap
Location
Counties:	Mercer, Venango, Butler, Clarion, Jefferson, Clearfield, Centre, Clinton, Union, Northumberland, Montour, Columbia, Luzerne, Carbon, Monroe
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Pennsylvania State Route System Interstate US State Scenic Byways Legislative ← PA 79 PA 80 →

The transcontinental Interstate 80 (I-80) is designated across northern Pennsylvania as the Keystone Shortway, officially the Z.H. Confair Memorial Highway. This route was built mainly along a completely new alignment, not paralleling any earlier U.S. Routes, as a shortcut to the tolled Pennsylvania Turnpike and New York State Thruway. It does not serve any major cities in Pennsylvania, and serves mainly as a cross-state route on the Ohio-New York City corridor. Most of I-80's path across the state goes through hilly and mountainous terrain, with relatively flat areas playing home to the freeway toward the western tier of the state.

Interstate 80 intersects cities such as DuBois, Sharon, Hazleton, and Stroudsburg.

I-80 enters the Western Pennsylvania area which encompasses Mercer, Venango, Butler, Clarion, Jefferson, and Clearfield Counties from the state of Ohio. I-80 intersects I-376 (serving the Pittsburgh International Airport and on to Downtown Pittsburgh) and I-79 (serving Erie to the north and Pittsburgh to the south) in Mercer County in Shenango and Findley Township respectively. Jefferson County at mile marker 73 is known for the city of Punxsutawney, the location of the famous groundhog Punxsutawney Phil who predicts the weather on Groundhog Day. In Clearfield County, I-80 reaches its highest elevation east of the Mississippi River, 2,250 feet (690 m), although other interstate highways east of the Mississippi, including I-26 in North Carolina and Tennessee, reach higher elevations. This point is just east of Exit 111. A sign prominently displays this unusual fact about the Interstate. At mile marker 101, I-80 passes by the city of Dubois.

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Wikipedia