UK Road Closed: National Highways

The M40 motorway will be closed overnight due to essential maintenance works, causing significant disruption to drivers in the Oxford area. The stretch of the M40 will be closed between junctions 8 and 9, with the exact location being at National Highways Closure — 515347. The closure is expected to cause congestion on nearby roads and drivers are advised to plan their journeys in advance. The works are part of National Highways' ongoing efforts to maintain the Strategic Road Network.

The closure will be in place from 9:15pm on 12th August 2026 until 5:00am on 13th August 2026. During this time, drivers will be diverted off the M40 and onto the A40, before rejoining the motorway at junction 9. National Highways has urged drivers to check their route before setting out and to use alternative routes if possible. For the latest traffic information, drivers are advised to check traffic apps or the National Highways website.

Motorists using the M40 are advised to be aware of the diversion and to follow the recommended route to avoid congestion. While the works are expected to cause significant disruption, National Highways has said that the works are essential to ensure the ongoing safety and reliability of the motorway. Drivers who rely on the M40 for their daily commute are advised to plan their journeys in advance and to leave extra time to reach their destination.

The M40 is a key route for drivers in the Oxford area, with many commuters using the motorway to travel to and from work. The closure is likely to cause significant congestion on nearby roads, including the A40 and the A40 (Oxford Road). Drivers are advised to check their route before setting out and to be aware of any planned roadworks in the area.

National Highways has said that the works are part of its ongoing programme of maintenance and improvement works on the Strategic Road Network. The company is working to maintain the safety and reliability of the motorway, which is used by millions of drivers every year. While the works are expected to cause disruption, National Highways has said that they are essential to ensure the ongoing safety and reliability of the motorway.

For the latest information on the M40 closure and other roadworks in the area, drivers are advised to check the National Highways website or a reliable traffic app. Road Closures UK is also a useful resource for drivers looking for the latest information on road closures and disruptions across the UK.