National Highways is delivering the M25 Junction 10 Upgrade scheme which is due to finish in the summer of 2025. As part of this work there is a need to replace a number of bridges spanning the M25 and A3 around Junction 10. These works will require the closure of the A3 and M25 at separate times throughout 2024 for this work to be completed.
Throughout 2024 there will be numerous Full Weekend Closures of the A3 and M25. In total there will be eight full closures, three of the A3 and five of the M25. The next closure will be as follows:
• Friday 15 March 9pm to Monday 18 March 6am the M25 between junction 10 and 11 in both directions, for demolition works and gantry installation.
As further closure dates are confirmed, information will be shared on the M25 Junction 10 scheme website which can be found here: M25 junction 10 - National Highways
There will be other closures alongside the full weekend closure between 15-18 March, details of which will also be available on the website.