M25 Planned Closures May 2025r 2025. The project, due to be completed in summer 2025, will increase the number of lanes at junction 10, which is one of the uk’s busiest and most dangerous motorway junctions. Four more daytime closures of the m25 will take place up to september.
You’ll also find the latest information about forthcoming closures and. The two remaining closures will be next spring, with national.