 In 1956 , MD 71 was involved in a three @-@ route number change involving highways in three different areas of the state . MD 71 was reassigned to the Blue Star Memorial Highway then under construction from Queenstown to the Delaware state line ; this designation lasted only three years before U.S. Route <unk> was rerouted onto the highway in 1959 . MD 71 was designated MD 194 to match the adjacent numbered highway in Pennsylvania . MD 194 had previously been assigned to Flower Avenue in <unk> Park ; Flower Avenue was then designated MD 787 . 
