Drivers on the M25 Dartford Tunnel are experiencing severe delays this morning following an accident....

Published: 8:57 am April 4, 2025
Updated: 1:05 pm October 8, 2025
Traffic Chaos at M25 Dartford Tunnel After Accident

Drivers on the M25 Dartford Tunnel are experiencing severe delays this morning following an accident. The incident occurred on the anticlockwise carriageway between J1A A206 (Dartford) and J31 A1306 (Lakeside / Purfleet).

Two lanes have been closed within the left-hand tunnel, forcing all traffic to use the taller right-hand tunnel. As a result, significant queueing traffic has been reported in the area, with congestion stretching back several miles.

Impact on Traffic

The tunnel closure has caused long delays for commuters and lorry drivers, with travel times significantly extended. Highways England has advised motorists to plan ahead and consider alternative routes where possible.

Traffic management teams are on-site, working to clear the accident and reopen the affected lanes. No official updates on the cause of the accident or potential injuries have been released at this time.

Advice to Drivers

Motorists approaching the Dartford Tunnel from the anticlockwise M25 are advised to:

  • Use alternative routes where possible.
  • Allow extra time for journeys.
  • Stay updated via traffic reports and Highways England alerts.

Travel Information

Due to the closure of the left-hand tunnel, all vehicles are being directed through the taller right-hand tunnel. The disruption is expected to continue throughout the morning rush hour.

 

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