M4 westbound between J3 and J4 | Westbound | Road Works

August 14, 2025 - 9:11 pm Last updated August 15, 2025 - 3:25 pm

Location : The M4 westbound between junctions J3 and J4 . Lane Closures : Lane one will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : From 22:00 on 21 August 2025 to 05:30 on 22 August 2025. Lanes Closed : There will be one of four lanes closed.