MD 4 was upgraded to a freeway through Waysons Corner and Bristol in 1991 .
MD 416 was renumbered MD 4 and MD 4 east of Waysons Corner became MD 408 in 1965 .
MD 416   was upgraded to a freeway through Waysons Corner and Bristol in 1991 .
MD 416 was renumbered MD 4 and MD 4 east of Waysons Corner became MD 408 in 1965 .