Location : The A20 westbound entry slip from the M25 . Lane Closures : Lane one is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 18:15 and 18:30 on 21 September 2021. Return To Normal : Normal traffic conditions are expected between 18:15 and 18:30 on 21 September 2021. Lanes Closed : There is one of two lanes closed.