M4 eastbound between J12 and J11 | Eastbound | Congestion

Location : The M4 eastbound between junctions J12 and J11 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 23:15 and 23:30 on 1 March 2026. Delay : There are currently delays of 10 minutes against expected traffic.