13Where, in consequence of Part I of this Act, any part of any highway in which any apparatus is situate ceases to be part of a highway, the undertakers may exercise the same rights of access to such apparatus as they enjoyed immediately before the passing of Part I of this Act, but nothing in this paragraph shall affect any right of the nominated undertaker or of the undertakers to require removal of that apparatus under this Part of this Schedule or the power of the nominated undertaker to construct works in accordance with paragraph 11 above.