M4 westbound between J4B and J5 | Westbound | Road Works

Location : The M4 westbound between junctions J4B and J5 . Lane Closures : Lane one will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:30 on 3 August 2025 to 05:00 on 4 August 2025. Lanes Closed : There will be one of four lanes closed.