Location : The M25 clockwise between junctions J15 and J16 . Lane Closures : Lanes 3 and 4 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 09:30 and 09:45 on 24 July 2021. Return To Normal : Normal traffic conditions are expected between 09:30 and 09:45 on 24 July 2021. Lanes Closed : There are two of four lanes closed.