Pennsylvania Statutes Title 36 P.S. Highways and Bridges § 1758-504. Open street prerequisite

No part or portion of any street hereinbefore described shall be taken over as a State highway under the provisions of this act until after such part or portion shall have been legally opened by the city or borough authorities in the same manner as other streets are now opened, which form a part of the same route as herein described, or an agreement shall have been entered into between the Commonwealth and city for such opening.