Whenever any railroad tracks, pipes, poles, wires, conduits or other structures or facilities which are located in, along, across, over or under any public road, street, highway, alley or other public right-of-way become an obstruction to, interfere with or are endangered by the construction, operation or maintenance of any system of the authority, the unit having ownership, control or jurisdiction over such public road, street, highway, alley or other public right-of-way may, as the exercise of an essential governmental function, order the safeguarding, maintaining, relocating, rebuilding, removing or replacing of such railroad tracks, pipes, poles, wires, conduits or other structures or facilities by the owner thereof at the expense of the authority, subject to the provisions of § 25.1-102.