As you may already know, long-term monitoring found that the two bridges which carry the M4 over Ashampstead Road and Dark Lane, near Bradfield in West Berkshire, require extensive repairs due to chloride-induced corrosion. Critical repairs are underway to address the defects and ensure the structures remain in a safe and serviceable condition. We are pleased to say that the works are progressing well.
Closures next week
The eastbound carriageway between junctions 13 and 12 will be closed overnight on Friday 23 June and Sunday 25 June, between 9pm and 6am.
Advance warning signs have been put up and a clearly signed diversion route will be in place via the A4 for these closures.
Please accept our apologies for any inconvenience these works may cause.
Significant delays are expected during these weekend closure periods, and it is advised that you plan ahead of your journey to allow for extra time or avoid this route where possible.
If you have any questions or if you’d like you know about the work please log your enquiry through Highways England’s customer control centre:
M4 - Junctions 12 (Theale) to 13 (Chieveley) bridge maintenance work
M4 Junctions 12 to 13: Bridge Refurbishment – Update
M4 Junctions 12 to 13: Bridge Refurbishment – Weekend Closure Reminder