The M25 motorway in the UK will experience a 57-hour closure between junctions nine and ten this upcoming weekend, from 9 pm on Friday, May 10, to 6 am on Monday, May 13. This closure is part of a £317 million improvement scheme aimed at enhancing infrastructure, including the installation of a bridge and gantry. The closure will enforce diversions which, if not followed, could subject drivers of older petrol and diesel vehicles to a £12.50 Ultra Low Emission Zone (ULEZ) fine.

National Highways has highlighted the importance of adhering to the official diversion route to prevent congestion and avoid ULEZ fines for non-compliant vehicles, which includes petrol cars over 18 years old and diesel cars over nine years old. Motorists have been advised to plan their journeys in advance, especially considering coinciding national rail strikes that could exacerbate roadway congestion.

This weekend’s closure marks the second of five planned for 2024 as part of the M25’s extensive upgrade project scheduled to finish in summer 2025. Additional awareness campaigns and communication initiatives have been launched to guide motorists during these disruptions.