17(1)The Concessionaires may, with the written consent of the Secretary of State, stop up in connection with the construction of any of the works authorised by this Act any part of the M20 within the limits of land to be acquired other than any part of its carriageways.U.K.
(2)On the stopping up of any part of the M20 under sub-paragraph (1) above, all rights of way over or along that part shall be extinguished.