 The bypass was marked as MD 139 by 1959 and the old segment of Charles Street Avenue was transferred to county maintenance by 1961.In 1963, the southbound direction of the state highway was assigned to St. Paul Street from North Avenue to the street's northern end at Charles Street; the street was a two-way divided boulevard north of 33rd Street.The intersection with Bellona Avenue at the state highway's northern terminus in Lutherville was replaced with a roundabout in 1999.