M4 westbound within J4 | Westbound | Road Works
Location : The M4 westbound between junctions J3 and J4 .
Lane Closures : Lanes 1 and 2 are closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 4 April 2025.
Lanes Closed : There are two of four lanes closed.