Location : The M40 southbound at junction J10 . Lane Closures : Lanes 2 and 3 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 21:15 and 21:30 on 25 June 2021. Return To Normal : Normal traffic conditions are expected between 21:15 and 21:30 on 25 June 2021. Lanes Closed : There are two of three lanes closed.