§ Mr. MadelTo ask the Secretary of State for Transport what is the total number of sections of the M25 that are underground in tunnels; what is the distance of the largest single section of the M25 in a tunnel; and if he will make a statement.
§ Mr. ChopeThere are tunnels on the M25 at Bell Common and Holmesdale, the latter tunnel being the longer at 650 m. The London orbital is completed to the east of London by the A282 Dartford tunnels under the Thames which are some 1,400 m long.