Location : The M4 westbound between junctions J3 and J4 .
Lane Closures : Lane three will be closed.
Reason : Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 19 January 2026 to 23 January 2026.
Schedule : From 23:00 on 23 January 2026 to 05:30 on 24 January 2026.
Lanes Closed : There will be one of four lanes closed.
