M25 closed this weekend in Surrey for final phase of road improvements
The motorway will be shut between Junction 10 at Wisley and Junction 11 at Chertsey
The final M25 weekend closure for the delayed £317 million road improvement project begins tonight.
The motorway will be shut between Junction 10 at Wisley and Junction 11 at Chertsey.
It will be closed from nine o’clock on Friday night until six o’clock on Monday morning.
This will allow National Highways to demolish and remove a bridge which is no longer needed.
Senior project manager Jonathan Wade said other jobs would also be completed while the road is closed:
“It gives us the opportunity to do a whole lot of work, some routine maintenance on some of the concrete joints, some technology work and some cabling work.
We're also going to put up another new gantry, so we're really making the best use of the opportunity of having a closed motorway.”
This will be the fifth and final M25 closure as part of the project, which started in summer 2022.
Diversion routes on A roads will be in place.
Drivers are being urged to avoid the area unless their journey is "absolutely necessary".
National Highways said there was a "notable increase in traffic" during the previous closure a fortnight ago compared with the first three closures in 2024.
National Highways project manager Wade said public engagement has been generally good during the project:
“What we've seen throughout all of these closures on the M25, is an example of really good collaboration between the local authorities, national highways, police and other blue light services, and the press, just to get the message out.
In the main, people have responded well and we're grateful for that.”
The project is also increasing the number of lanes at Junction 10 in an attempt to improve safety and cut congestion.
Although this is the final full weekend closure of the M25, the project will now not finish until Spring 2026.
It was initially scheduled to be completed this summer, but delays have been attributed to extreme weather.