We'll remove the M20 Operation Brock contraflow overnight from 8pm Sunday 17 August
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We're removing the Operation Brock contraflow at the request of the Kent and Medway Resilience Forum
Operation Brock is part of a series of measures to make sure traffic flows smoothly when cross-channel services are disrupted.
To remove the contraflow, we'll close the the M20 overnight from 8pm Sunday 17 August to 6am Monday 18 August 2025:
- London bound from junction 9 to 8
- coastbound junction 7 to 9
Fully signed diversion routes will be in place during the closure. Please follow diversion signs, not SatNav instructions.
When the contraflow is removed, the M20 will reopen with three lanes and the national speed limit in place.
Plan ahead
If you're travelling over the holiday period, allow more time for your journey and make sure you're prepared for delays.
Follow our driving advice and have a safe T.R.I.P.
Be prepared for driving in hot weather.
Use this link to check the status of the Operation Brock contraflow.
