 The first portion of modern US 11 to be constructed was the bridge over the Potomac River at Williamsport , which was financed and constructed by Washington County and completed in 1909 . The new bridge , which became the only crossing between Cumberland and Washington , D.C. to survive the flood of March 1936 , charged tolls from a tollgate at the West Virginia end of the bridge . The Maryland State Roads Commission later purchased the bridge in 1954 and removed the tolls in 1958 . Both the Williamsport Pike and Middleburg Pike , their right @-@ of @-@ way now owned by the Maryland State Roads Commission , were paved by 1921 . 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 . 
