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  2. List of Interstate Highways in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/List_of_Interstate...

    Legislative. 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. In Pennsylvania, most of the Interstate Highways are maintained by the Pennsylvania Department of Transportation (PennDOT).

  3. Interstate 81 in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Interstate_81_in_Pennsylvania

    Interstate 81 (I-81) is a north–south Interstate Highway, stretching from Dandridge, Tennessee, northeast to Fisher's Landing, New York, at the Canada–United States border. In Pennsylvania, I-81 runs for 232.76 miles (374.59 km) from the Maryland state line northeast to the New York state line near Hallstead and is called the American ...

  4. Interstate 80 in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Interstate_80_in_Pennsylvania

    Interstate 80 (I-80) in the US state of Pennsylvania runs for 311.12 miles (500.70 km) across the central part of the state. It is designated as the Keystone Shortway and officially as the Z.H. Confair Memorial Highway. This route was built mainly along a completely new alignment, not paralleling any earlier US Routes, as a shortcut to the ...

  5. List of state routes in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/List_of_state_routes_in...

    Since Pennsylvania first introduced numbered traffic routes in 1924, a keystone symbol shape has been used, in reference to Pennsylvania being the "Keystone State". The signs originally said "Penna" (a common abbreviation for Pennsylvania at the time), followed by the route number in block-style numbering in a keystone cutout.

  6. Interstate 70 in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Interstate_70_in_Pennsylvania

    I-70 enters Pennsylvania from West Virginia, coming into Donegal Township, Washington County.The highway continues northeast as a four-lane freeway with a standard-size median up to Interstate Highway standards through rural areas of woodland and farmland, coming to its first junction at a partial cloverleaf interchange with State Route 3023 (SR 3023), to the southeast of unincorporated ...

  7. Pennsylvania State Route System - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_State_Route...

    The Pennsylvania State Route System was established by the Sproul Road Bill passed in 1911. The system took control of over 4,000 miles of road. The system of roads continued to grow over the next few decades until continual addition of roads faced greater opposition. On October 1, 1940, the Pennsylvania Turnpike's first section of highway was ...