Work began in 2022 and is part of a delayed £317m project to improve safety and cut congestion. Work began in 2022 and is part of a delayed £317m project to improve safety and cut congestion.
Drivers warned as final M25 weekend closure begins

Work began in 2022 and is part of a delayed £317m project to improve safety and cut congestion. Work began in 2022 and is part of a delayed £317m project to improve safety and cut congestion.