The route was realigned to a new alignment south of the US 30 intersection north of Parkesburg in the 1950s, having previously followed current Hershey Lane and a concurrency with US 30. US 122 was decommissioned in 1963, and PA 10 was extended north along the former alignment to US 222 (now US 222 Bus.)
In the 1950s, the route of US 122 was changed to a new path south of US 30 near Parkesburg. This replaced its previous alignment which ran along Hershey Lane and shared a concurrency with US 30.  US 122 was decommissioned in 1963, and PA 10 was extended north along the former route to connect with US 222 (now US 222 Bus.)