U.S. Route 22 Business (Monroeville, Pennsylvania)

U.S. Route 22
Highway system
United States Numbered Highway System List Special Divided Replaced

U.S. Route 22 Business
Location:	Monroeville, Pennsylvania

U.S. Route 22 Business
Location:	Lewistown, Pennsylvania

U.S. Route 22 Temporary
Location:	Green Tree–Pittsburgh, Pennsylvania

U.S. Route 22 Truck
Location:	Pittsburgh, Pennsylvania

U.S. Route 22 Bypass
Location:	Harrisburg, Pennsylvania

U.S. Route 22 Alternate
Location:	Bethlehem–Easton, Pennsylvania

U.S. Route 22 Alternate
Location:	Phillipsburg, New Jersey

U.S. Route 22 Bypass
Location:	Easton, Pennsylvania–Phillipsburg, New Jersey

At least eight special routes of U.S. Route 22 have existed.

U.S. Route 22 Business is a 5-mile loop through the eastern Pittsburgh suburbs of Churchill, Wilkins Township, and Monroeville, Pennsylvania, on William Penn Highway. The route's western terminus is at a freeway junction with Interstate 376, which features cosignment by the business loop's parent route. The route was the former pathway of U.S. Route 22 itself before the construction that extended Interstate 376 from this point eastward to the Pennsylvania Turnpike, in the early 1960s. The first two miles of the road are contained in a valley, surrounded by a variety of side roads leading to suburban, mostly residential development. The remaining three miles feature dense commercial development, including several office high rises and the Monroeville Mall. The highway ends at a complicated junction that features the northern terminus of Pennsylvania Route 48, the southern end of Haymaker Road, and Interstate 376, which features its last two exits (before the Pennsylvania Turnpike) with the above streets. Business US 22 then travels for its final eighth of a mile on a viaduct that allows for connections with the Pennsylvania Turnpike and a smooth transition on to US 22 east (continuing William Penn Highway) toward suburban Murrysville, Pennsylvania.

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