 Those highways as well as Potomac Street in the town of Williamsport and the streets connecting the two former turnpikes within the city of Hagerstown—Virginia Avenue, Jonathan Street, and Pennsylvania Avenue—were designated Maryland's portion of US 11 in 1926.The first upgrades to US 11 occurred when Williamsport Pike and Middleburg Pike were rebuilt and widened in the late 1920s and early 1930s, respectively.Williamsport Pike was rebuilt again in 1948, with the highway widened using the right-of-way of the Williamsport–Hagerstown interurban that had ceased service in 1947.