Location : The M4 westbound between junctions J4 and J4B .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:30 on 12 January 2025 to 05:00 on 13 January 2025.
Lanes Closed : There will be two of five lanes closed.
