Brock contraflow in Kent returns

This article was updated on Tuesday 13 December 2022.

The Operation Brock contraflow system on the M20 in Kent will be deployed ahead of the Christmas period and high passenger numbers at Dover and the Eurotunnel.

Operation Brock is part of a series of measures to improve Kent’s resilience and ensure the smooth flow of traffic through the region in the event of disruption to services across the English Channel.

The contraflow arrangement was originally planned to be deployed overnight on Sunday 11 December but was postponed due to heavy snow in the area. Instead, it will be in operation when the M20 reopens at 6am on Wednesday 14 December.

To ensure safe deployment of the contraflow system, the M20 will be closed London bound between junctions 9 and 8 and coastbound between junctions 7 and 9 from 9pm on Tuesday 13 December to 6am on Wednesday 14 December.

Please take extra care when driving and follow our signed diversion route.