(1)Subject to the provisons of this Act, the Executive may, in the lines or situations shown on the deposited plans and according to the levels shown on the deposited sections, make and maintain—
(a)the works in the Metropolitan Boroughs of Dudley, Sandwell, Walsall and Wolverhampton specified in Part I of Schedule 1 to this Act, with all necessary works and conveniences connected therewith; and
(b)the works in the City of Birmingham and the Metropolitan Borough of Solihull and in the Borough of North Warwickshire in the County of Warwickshire specified in Part I of Schedule 2 to this Act, with all necessary works and conveniences connected therewith.
(2)Notwithstanding anything in this Act or shown on the deposited plans or the deposited sections, the Executive may, subject to the approval of the Secretary of State and with the consent of the owners, lessees and occupiers of the lands affected—
(a)construct the whole or part of Work No. 29 within the limits of deviation for that work in lines or situations and in accordance with levels, dimensions and descriptions other than the lines or situations, levels, dimensions and descriptions shown on the deposited plans and the deposited sections or specified in Part I of Schedule 2 to this Act; and
(b)construct or extend any part of Work No. 31 within the boundary of Birmingham International Airport in such lines or situations and in accordance with such levels, dimensions and descriptions as may be agreed between the Executive and Birmingham International Airport Plc.
(3)The Executive shall construct a good and sufficient fence on each side of any road bridge which is constructed or widened as part of the authorised works.