If and to the extent that the relocated stairs specified in Work No. 17b(viii) in Part of Schedule 1 to this Order or the replacement stairs and lift specified in Work No. 17b(ix) (“the replacement structures”) become vested in the Mayor and Commonalty and Citizens of the City of London in their capacity as trustees of the Bridge House Estates, section 16 of the Blackfriars Bridge Act 186335 (new Bridge deemed to be vested in the City of London as Trustees of the Bridge House Estates) shall have effect as if a reference to the new Bridge included a reference to the replacement structures (in so far as so vested).