Any portion or portions of the highways, as herein described, which are located on or form a part of any city street shall be taken over for construction and maintenance in accordance with the provisions of present or future laws relating to State highway route in cities; and any portion or portions of the highways, as herein described, which are located on or form a part of any borough street shall be taken over for construction and maintenance in accordance with the provisions of present or future laws relating to main State highways in boroughs.
36 P.S. § 1742