3The ancillary works
(1)The ancillary works are such works of the nature described in schedule 2 to this Act as may be necessary or expedient for the purposes of, in connection with or in consequence of the construction of the scheduled works.
(2)Subject to subsection (3), subsection (1) only authorises the carrying out or maintenance of works—
(a)within the limits of deviation; and
(b)on land specified in columns (1), (2) and (3) of Part 1, 2 or 3 of schedule 5 for the purpose specified in relation to that land in column (4) of that Part (being land shown on the Parliamentary plans as lying within the limits of land to be acquired or used).
(3)The authorised undertaker may construct and maintain ancillary works identified in paragraphs 10 and 11 of schedule 2 to this Act anywhere within the limits of deviation or the limits of land to be acquired or used.