Location : The M25 anticlockwise between junctions J20 and J18 . Lane Closures : Lane four is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 07:45 and 08:00 on 29 June 2021. Return To Normal : Normal traffic conditions are expected between 07:45 and 08:00 on 29 June 2021. Lanes Closed : There is one of four lanes closed.