Operation Brock Contraflow on M20 Lifted Overnight
National Highways and the Kent Resilience Forum have confirmed the removal of the contraflow system on the M20. The 13-mile stretch between Junction 8 (Maidstone) and Junction 9 (Ashford) had the contraflow during the busy Christmas period as a precaution against cross-Channel travel disruption.
Lane Reopens as Barrier Moves
The contraflow system will be removed starting 8pm Friday night. By 6am Saturday, two lanes reopened on the coastbound side between Junctions 7 and 9, and on the London-bound side between Junctions 9 and 8. The moveable barrier will be shifted temporarily to the coastbound hard shoulder.
The London-bound M20 will close overnight from 8pm Saturday to 6am Sunday while the barrier is moved to lane 1. The barrier stays in place to protect workers as they carry out verge repairs between Junctions 8 and 9. A 50mph speed limit remains in this area on both carriageways.
Why Operation Brock Matters
“Operation Brock is a critical contingency measure that helps to keep Kent moving in times of cross-Channel disruption,” said Christine Allen, interim regional director for National Highways.
She added: “We appreciate everyone’s patience while the contraflow system was in place. National Highways will remove the contraflow this weekend, but the barrier will remain on the London-bound M20 until spring for workforce safety. This allows barrier storage when it’s not in use.”
Traffic Diversions to Know
- Coastbound: Exit at Junction 7, take A249 north to M2 Junction 5, then M2 and A2 to Dover.
- Eurotunnel: Use A20 westbound to M20 Junction 13, then exit at Junction 11 (Hythe) for the tunnel.
- To London: Follow fully signed diversion on the A20.
- Over-height vehicles: Must use A2, M2, and A249 routes.
