Operation Brock


What is Operation Brock?

Operation Brock is a set of measures to keep the M20 open in both directions between junctions 8 and 9 in the event of disruption to services across the English Channel, by using different holding areas.

The queuing system only applies to lorries heading to mainland Europe from Kent.

Drivers of cars, coaches and non-HGV vehicles

Phase 1 - Use any available major route. If you use the M20, between junctions 8 and 9 you’ll use the two-way contraflow system on the London-bound carriageway. A 50mph limit will be in place.

Phase 2 & 3 - Use the M20. Between junctions 8 and 9 you’ll use the two-way contraflow system on the London-bound carriageway. A 50mph limit will be in place.

Phase 4 - You won’t be able to use the M26. Follow the same procedure as for Phase 2 & 3.

The four phases of Operation Brock

Traffic levels will be monitored with roads signs directing drivers.

Phase Cars, coaches and non-HGV vehicles
(under 7.5 tonnes)
HGV traffic
(7.5 tonnes or more)
1 Drivers can use any available route Drivers can use any available route
2 Drivers should use contraflow between M20 junctions 8 and 9 Drivers must use M20 junction 8-9 coastbound carriageway
3 Drivers should use contraflow between M20 junctions 8 and 9 Drivers must use M20 junction 8-9 coastbound carriageway
4 Drivers must avoid M26 and should use contraflow between M20 junctions 8 and 9 Drivers must use M26 and only proceed to M20 junction 8-9 when directed