UK Road Closed: National Highways

A section of the M4 motorway in Berkshire will be closed overnight due to essential maintenance work by National Highways. The closure is scheduled to take place on the westbound carriageway between junctions 6 and 7 near Slough. The road will be closed from 9pm on Thursday, 10 August 2026, until 4am on Friday, 11 August 2026, as part of National Highways' ongoing efforts to maintain the strategic road network.

The closure has been categorised as severe, with drivers advised to plan their journeys in advance and consider alternative routes. Motorists should check their favourite traffic and travel apps for up-to-date information and follow any recommended diversions. It's also a good idea to leave extra time for your journey, as traffic congestion is likely to occur during this period.

The closure is necessary to facilitate maintenance work on the westbound carriageway, which will help to ensure the road remains safe and efficient for drivers. National Highways is working hard to complete the work as quickly as possible, while also minimising disruption to commuters and road users.

Drivers are advised to follow the recommended diversion route, which will be clearly signposted on the day. The diversion will take drivers off the M4 at junction 6, where they can join the A308(M) before re-joining the motorway at junction 7. Motorists should be aware that the diversion route may add extra time to their journey, so it's essential to plan ahead.

National Highways is working closely with its partners to manage the impact of the closure, and is encouraging drivers to check their website or social media channels for the latest updates. The organisation is committed to keeping road users informed and up-to-date with any changes to the planned schedule.

In addition to the recommended diversion route, drivers can also use alternative routes to avoid the closure altogether. The M25 and A4 are both viable options for drivers looking to bypass the affected area. However, it's worth noting that these routes may also be subject to congestion and delays, so it's essential to plan ahead and check traffic conditions before embarking on your journey.

For the most up-to-date information on this and other road closures, please visit Road Closures UK or follow National Highways on social media.