M4 eastbound between J4B and J4 | Eastbound | Congestion

Location : The M4 eastbound between junctions J4B and J4 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 18:15 and 18:30 on 21 September 2021. Cause : Accident involving an overturned vehicle. Delay : There are currently delays of 40 minutes against expected traffic.