Location : The M4 eastbound between junctions J18 and J16 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 14:45 and 15:00 on 16 September 2025.
Cause : Road traffic collision.
Delay : There are currently delays of 30 minutes against expected traffic.

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