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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).
Pennsylvania's Name Designation Act of 1984 designated I-80 as the Z. H. Confair Memorial Highway. In 1993, exit 43 (now exit 284) of I-80, which serves the Pocono Raceway, was designated the Richard Petty Interchange in honor of the NASCAR driver that drove the #43 car. [5] [6] By 2000, most of the road had been rebuilt to meet modern standards.
NY 17 is briefly in Pennsylvania in the borough of South Waverly: US 222: 90: 140 US 222 in Fulton Township: I-78/PA 222/PA 309 in Dorneyville, PA: 1926: current US 224: 10: 16 US 224 in Mahoning Township: PA 18 in New Castle: 1933: current US 230: 40: 64 US 22 in Harrisburg: US 30 in Lancaster: 1928: 1967 Now PA 230 and PA 283: US 309
In honor of the great American road trip, here's a guide to some top cross-country road trip stops along Interstates 10, 40, 70, 80, 90, and 95, as well as the legendary former Route 66, much of ...
All state highways are designated by the Washington State Legislature and codified in the Revised Code of Washington (RCW), namely Chapter 47.17 RCW. These routes are defined generally by termini and points along the route; WSDOT may otherwise choose the details, and may bypass the designated points as long as the road serves the general vicinity.
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.
The Post Office Appropriation Act of 1912 and the Rural Road Act of 1916 provided funds to rebuild the National Road, and World War I and the overburdened railroads made national highways a priority in the early twentieth century. In 1921, the National Road became U.S. Route 40 after the National Highway Act. The Pennsylvania Route 11 ...
US 6 merges with I-81 for seven miles (11 km) from milemarkers 187 to 194. At milemarker 194 is the northern terminus of I-476. The last exit in Pennsylvania is exit 230, which is PA 171 near Hallstead. I-81 reaches the New York state line four miles (6.4 km) north of exit 230. [3] [4]