M4 westbound between J4 and J4B | Westbound | Road Works

August 1, 2025 - 10:01 pm Last updated August 2, 2025 - 5:46 am

Location : The M4 westbound between junctions J4 and J4B . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:30 from 4 August 2025 to 6 August 2025. Lanes Closed : There will be one of five lanes closed.