Location : The M1 southbound at junction J15 . Lane Closures : Lanes 2 and 3 are closed. Reason : Accident involving an overturned vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 16:00 and 16:15 on 24 June 2021. Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 24 June 2021. Lanes Closed : There are two of three lanes closed.