Pennsylvania Route 9 (1920s)

U.S. Route 20
Route information
Maintained by PennDOT
Length:	45.433 mi (73.117 km)
Existed:	1926 – present
Tourist routes:	Lake Erie Circle Tour
Major junctions
West end:	US 20 at Ohio border near West Springfield
	US 6N near West Springfield I-79 in Erie US 19 in Erie I-90 near North East
East end:	US 20 at New York border near North East
Location
Counties:	Erie
Highway system
United States Numbered Highway System List Special Divided Replaced Pennsylvania State Route System Interstate US State Scenic Byways Legislative ← US 19 PA 21 → ← PA 9 PA 10 →

U.S. Route 20 is an east-west U.S. Highway in Pennsylvania, which clips the northwestern corner of the state, running entirely in Erie County. While it is part of the nation's longest road, it features the shortest segment of any two-digit U.S. route in the commonwealth. Although bypassed by Interstate 90 as the primary through route in the area, heavy traffic has led to nearly the entire highway being upgraded to four lanes in width.

U.S. 20 travels for 45 miles through Pennsylvania's Great Lakes region. For most of its journey, it closely parallels a heavily travelled CSX rail line, which also serves Amtrak passenger trains. The highway enters the state under the moniker of West Ridge Road eastward from the Ohio border, as it journeys through Springfield Township, Girard Township, Fairview Township and Millcreek Township. This section of road was widened to encompass a mostly four-lane set-up after a pair of 1938 and 1946 infrastructural projects, owing to the heavy truck traffic between Erie and Cleveland, Ohio. A 1952 upgrade saw the remainder of the Millcreek Township section of the route improved to four lanes.

At the intersection with Pennsylvania Route 832, just outside the Erie city limits, U.S. 20 becomes West 26th Street. The highway then passes through an industrial and commercial corridor that represents a 1946 alignment change, which saw 26th Street extended to avoid the route's former complicated passage along East Avenue. Soon after a major interchange with Greengarden Boulevard, the highway becomes two lanes, as it passes through Erie's old residential neighborhoods. After a junction with U.S. Route 19 just south of the city center, it becomes East 26th Street.

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Wikipedia