Location : The M4 westbound between junctions J12 and J13 .
Lane Closures : Lane one will be closed.
Reason : Roadside drains works are planned.
Status : Pending.
Schedule : From 20:00 on 15 May 2026 to 06:00 on 16 May 2026.
Lanes Closed : There will be one of three lanes closed.
