 Until 1955, Progress Avenue was Pennsylvania Route 543.It was a spur of Pennsylvania Route 43, which ran on modern US 22 (Walnut Street, at its intersection with SR 3015), while US 22 was routed on Derry Street.In the mid 1930s, US 22 was moved from Derry Street to its current location on Walnut Street, and PA 43 was deleted.