Location : The M4 westbound entry slip at junction J20 .
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 19:45 and 20:00 on 1 June 2026.
Return To Normal : Normal traffic conditions are expected between 19:45 and 20:00 on 1 June 2026.
Lanes Closed : All lanes are closed.
