5Where a highway is stopped up or diverted in pursuance of an order under section 116 or land is conveyed pursuant to section 256, the statutory undertakers whose apparatus is under, in, upon over, along or across the highway may, and, if reasonably requested so to do by the authority on whose application the order was made, or who conveyed the land, as the case may be, shall—
(a)remove the apparatus and place it or other apparatus provided in substitution for it in such other position as they may reasonably determine and have power to place it; or
(b)provide other apparatus in substitution for the existing apparatus and place it in such position as aforesaid.
Any works executed under this paragraph (including the provision of apparatus thereunder) are hereafter in this Part of this Schedule referred to as " undertakers' works ".