1(1)The Secretary of State may carry out such works as may be necessary or expedient for the purposes of, in connection with or in consequence of the construction of the scheduled works including, in particular—
(a)landscaping and drainage works,
(b)works involving the alteration of the position of mains and cables, and
(c)works consisting of the provision of new means of access to premises affected by the scheduled works.
(2)Sub-paragraph (1) above—
(a)shall not authorise the carrying out of works outside the limits of land to be acquired, and
(b)shall authorise the carrying out of works outside the limits of deviation for the scheduled works only if the works are carried out on land specified in columns (1) and (2) in Part I of Schedule 2 to this Act for the purpose specified in relation to the land in column (3) in that Part of that Schedule.
2In constructing the scheduled works the Secretary of State may—
(a)deviate laterally from the lines or situations shown on the deposited plans within the limits of deviation for those works, and
(b)deviate vertically from the levels shown on the deposited sections—
(i)to any extent not exceeding three metres upwards, or
(ii)subject to paragraph 3 below, to any extent downwards.
3(1)In constructing the new bridge the Secretary of State shall provide headway of not less than 377 metres above the prescribed level over a clear central span of at least 415 metres.
(2)In sub-paragraph (1) above “the prescribed level” means 68 metres above ordnance datum (Newlyn).
4The British Railways Board may, subject to such requirements as the Secretary of State may from time to time lay down, provide, maintain and operate at or near the level crossing forming part of Work No. 9 such barriers, lights, traffic signs and automatic or other devices and appliances as may be approved by the Secretary of State.