M25 closure: Drivers warned of long delays and told to only travel if necessary ahead of first ever planned full closure

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The M25 will be closed for a full weekend for the first time ever as a major project progresses to make journeys safer and reduce pollution.

This will be the first of five closures between now and September 2024 – prompting National Highways to warn motorists of long delays and to only travel if necessary.

National Highways will shut the M25 in both directions between junctions 10 (A3 Wisley) and 11 (A320 Chertsey Interchange) from 9pm Friday, March 15 to 6am Monday, March 18 to demolish the Clearmount bridleway bridge and install a very large gantry.