M4 westbound between J19 and J20 | Westbound | Congestion

Location : The M4 westbound between junctions J18 and J20 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 27 June 2025.
Delay : There are currently delays of 40 minutes against expected traffic.