Pennsylvania The William Penn Highway in Pennsylvania has largely been superseded by
U.S. Route 22 (US 22). From
Pittsburgh, the highway's original route followed modern-day
Pennsylvania Route 380 (PA 380) and
PA 8 to
Wilkinsburg, then Penn Avenue and the William Penn Highway up to an alignment since absorbed by
Interstate 376 (I-376). From here, the road weaves between I-376, still known as the Old William Penn Highway, bypassing the old Northern Pike to the north. From here to
Armagh, the highway closely follows modern-day US 22, though this route bypasses town centers historically served by the William Penn. At Armagh, a loop following the north bank of the
Conemaugh River serviced
Johnstown, and has since been replaced by
PA 403 and William Penn Avenue, connecting back to the main highway at
Mundy's Corner. The highway then went to
Ebensburg, where it branched off from both its predecessor and successor thoroughfares by traveling along Manor Drive to
Loretto, then Syberton Road to
PA 53 to
Ashville, and
PA 36 to
Altoona. From here, the highway paralleled the
Pennsylvania Railroad closely, turning north on
US 220 Business and Old US 220 to
Tyrone, then south to Water Street, where it meets today's course of US 22 again. From
Alexandria to
Huntingdon, the old Northern Pike was bypassed by a route to the south, which US 22 has in turn bypassed in part. US 22 again bypasses the original route from
Lewistown to
Thompsontown. From
Millerstown, the route services
Liverpool via present-day
PA 17 and
US 11/15. Through the highway's early history, it serviced
Downtown Harrisburg directly. From the west, it entered the city by Front Street, and may have used Market Street through Downtown Harrisburg. The route crossed over the
Pennsylvania Railroad using Mulberry Street using a connection with Fourth Street. From Harrisburg to
Allentown, the original highway serviced the cities of
Lebanon and
Reading directly. It left Harrisburg on Derry Street, which at the time Grayson Road over the Reading Railroad. After a brief stretch of modern US 322, the road passed through
Hummelstown on Main Street, then crossed over the Reading again to follow Chocolate Avenue through
Hershey. Through Lebanon to Reading, the route is still serviced by
US 422, with the exception of bypasses of
Myerstown and
Womesldorf. The route entered Reading on Penn Avenue and left on
US 222 Business. With the exception of bypasses of Kutztown and Trexlertown, the route follows
US 222 and
PA 222 into Allentown. It exited Allentown on Hanover Avenue and entered Bethlehem on Broad Street. From Bethlehem to the New Jersey border, the highway followed modern-day Linden Street and Easton Avenue in Bethlehem; William Penn Highway between Bethlehem and Easton; and Butler Street, 13th Street, and Northampton Street in Easton.
New Jersey The road is today the following routes: • • • • • • • • West of Newark, the whole alignment was designated as
Route 24 in 1927. ==See also==