 US 30 was widened into a multilane road between York and Lancaster in the 1930s.The route was moved to one-way pairs in Lancaster in the 1930s, following King Street eastbound and Orange Street westbound, and York in the 1950s, following Market Street eastbound and Philadelphia Street westbound.In 1967, US 30 was moved to a freeway bypass between Prospect Road east of Columbia and east of Lancaster, with the former alignment becoming PA 462.