Sections 163(3)(d), 167(1)(a) and (2)(a) of the Transport Act 2000 authorise the Secretary of State to make a trunk road charging scheme in respect of roads for which he is the traffic authority and which are carried by a bridge or tunnel at least 600 meters in length. The length of road described in Schedule 1 is such a road and charges are currently levied in respect of it under the A282 Trunk Road (Dartford - Thurrock Crossing Charging Scheme) Order 2012 (SI 2012/2387).