48.—(1) The undertaker may enter onto and use so much of the subsoil of, or air-space over, any street or city walkway within the Order limits as may be required for the purposes of the authorised project and may use the subsoil or air-space for those purposes.
(2) Subject to paragraph (3), the undertaker may exercise any power conferred by paragraph (1) in relation to a street or city walkway without being required to acquire any part of the street or city walkway or any easement or right in the street or city walkway.
(3) Paragraph (2) shall not apply in relation to—
(a)any subway, tunnel or underground building; or
(b)any cellar, vault, arch, projection, or other construction in, on or under a street which forms part of a building fronting onto the street.
(4) Subject to paragraph (5), any person who is an owner or occupier of land which is entered onto and used under paragraph (1) without the undertaker acquiring any part of that person’s interest in the land, and who suffers loss as a result, shall be entitled to compensation to be determined, in case of dispute, under Part 1 of the 1961 Act.
(5) Compensation shall not be payable under paragraph (4) to any person who is an undertaker to whom section 85 of the 1991 Act (sharing cost of necessary measures) applies in respect of measures of which the allowable costs are to be borne in accordance with that section.
(6) The undertaker shall as soon as reasonably practicable and in any case no later than 14 days before entering the subsoil or airspace, serve notice of the use under this article, on the owner and or occupier of the subsoil or airspace proposed to be used, and such notice shall be accompanied by plans showing in sufficient detail the subsoil and airspace to be used under this article and upon written request the undertaker shall supply a copy of such notice and plans to the local authority and (if different) the local highway authority.
(7) If at any time following the use pursuant to paragraph (1) the subsoil or airspace is no longer required to be used under this article for the purposes of the authorised project—
(a)the undertaker shall serve notice on the owner that the subsoil or airspace is no longer required; and
(b)upon service of notice to the owner the right of the undertaker to use the subsoil or airspace given by paragraphs (1) and (2) shall cease; and
(c)the undertaker (or if different the owner for the time being of the part of the authorised project occupying the subsoil or airspace) shall within a reasonable time following the written request of the owner to do so, remove its equipment from the subsoil or airspace and restore the subsoil or airspace to the reasonable satisfaction of the owner and deliver up vacant possession of it.
(8) Save in respect of cranes oversailing the highway, the undertaker may not exercise the powers under this article after completion of construction.