Drivers have been warned that the next set of M25 closures will take place this weekend with drivers urged to plan ahead to avoid getting caught in traffic jams.
The closures will impact junctions 10 and 11 and will take place between 9pm on Friday, March 21, and 6am on Monday, March 24.
The closures will enable National Highways to complete the next phase of crucial bridge demolition which is scheduled to be completed next year.
This is the second full weekend closure to take place this year to allow work on the junction to get underway with drivers facing significant disruptions.
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The closures will be to allow work on the junction to take place ahead of the 2026 deadline
NATIONAL HIGHWAYS
However, during the first closures on March 7 and March 10, roads became exceptionally busy with the agency urging drivers to avoid the area.
National Highways said: "If you’re travelling around Surrey between March 21 and 24 please only use the motorway and surrounding roads if your journey is absolutely necessary, allow extra time and use alternative routes where possible, make sure you follow our official diversions, not information from sat-navs."
There will be diversions put in place to help alleviate road traffic piling up on the motorway with drivers travelling clockwise diverted from the M25 at junction 10 to join the A3 northbound before taking the A245 at Painshill. They should then take the A320 to rejoin the motorway at J11.
For motorists travelling anticlockwise, they will be diverted from the M25 at J11 to join the A320 southbound. From here, they should take the A245 to Painshill before taking the A3 southbound to rejoin the M25 at J10.
To help keep traffic moving, drivers should also take the M25 via the Dartford Crossing which may also be quicker, National Highways suggested.
Jonathan Wade, senior project manager at National Highways, said: "Unfortunately, it’s simply not possible to carry out this scale of infrastructure improvement, which will benefit millions of people in the long term, without there being some degree of short-term disruption.
"We have spent months planning these closures, but they will still cause significant congestion and delays, so we are asking road users to allow extra time and use alternative routes where possible. Please follow our official diversion routes and not information from satnavs."
He explained that while the closures will affect drivers day-to-day, the works are still expected to be finished this summer after the completion date for the whole project was moved back to spring 2026.
The improvement scheme hopes to see an increase in the number of lanes to make journeys safer and improve traffic flow.
It will also make it easier and safer to enter and exit the M25, provide safer entry roads for Wisley, Pyrford, Old Byfleet and the RHS Garden Wisley, and reduce the pollution caused by traffic jams.
The M25 junction 10 and A3 Wisley interchange is one of the busiest sections of the M25, with over 300,000 vehicles travelling through it every day.
Journeys that include commuters, businesses, those visiting local attractions and holidaymakers all of which have been advised to plan ahead this weekend.
LATEST DEVELOPMENTS:
Map of M25 project work taking place
NATIONAL HIGHWAYS
The next set of closures will take place between April 11 and 14 when the A3 will be shut in both directions between Junction 10 and Painshill Roundabout/A245.
The closure will start at 9pm on Friday and be lifted by 6am on Monday with details of the diversion taking place closer to the weekend.
