M4 westbound between J4B and J5 | Westbound | Congestion

Location : The M4 westbound between junctions J4B and J5 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 18:45 and 19:00 on 30 July 2025.
Delay : There are currently delays of 15 minutes against expected traffic.