Location : The M4 eastbound between junctions J16 and J15 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 13:15 and 13:30 on 2 August 2025.
Cause : Accident involving a vehicle that has left the carriageway.
Delay : There are currently delays of 20 minutes against expected traffic.

The latest incident information for England’s motorway and trunk routes provided by Highways England