Operation Brock Set to Battle M20 Chaos from Wednesday Morning
The M20’s new traffic system, Operation Brock, was delayed by heavy snow but will now launch at 6 a.m. on Wednesday, December 14. Originally planned for overnight Sunday, the contraflow system is ready to tackle Kent’s infamous gridlock once the motorway reopens.
Full M20 Closure to Install Contraflow Barriers
Expect major disruption overnight Tuesday as the M20 shuts down from 9 p.m. to 6 a.m. between junctions 9 and 8 (London-bound) and junctions 7 and 9 (coastbound). Diversions will be clearly signed to keep traffic flowing while the barriers go in.
How Operation Brock Works and Fines for Rule-Breakers
- Once the contraflow is active, all lorries heading to the Port of Dover or Eurotunnel must Follow Operation Brock signs at junction 8.
- HGV drivers ignoring signs and trying to dodge the system via the M2/A2 at Brenley Corner face a hefty £300 fine.
- Police and enforcement officers can send offenders to the back of the queue, adding to their delays.
Local freight and drivers heading to Europe should cross over onto the London-bound carriageway and obey contraflow signs to keep coast-bound lanes clear.
Plan Ahead: Check Before You Travel
With Operation Brock up and running, travellers aiming for Eurotunnel or the Port of Dover should check with their operators and prepare for delays. The contraflow aims to keep both directions moving during busy periods – but anyone ignoring the rules risks fines and frustration.
