(1)Subject to the provisions of this Act the Executive may—
(a)in the lines or situations shown on the deposited plans and according to the levels shown on the deposited sections, make and maintain the works in the Metropolitan Borough of Solihull specified in Part I of Schedule 3 to this Act, with all necessary works and conveniences connected therewith; and
(b)in so far as the same are shown on the deposited plans and sections, in the lines or situations and according to the levels so shown, carry out the further works, with all necessary works and conveniences connected therewith, and exercise the further powers, in the Metropolitan Borough of Solihull described in Part II of the said Schedule 3.
(2)The Executive shall cease to have the powers to make and maintain the works, or to exercise the further powers, in the Metropolitan Borough of Solihull specified in Part III of the said Schedule 3.