Location : The M1 northbound between junctions J15A and J16 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 03:45 and 04:00 on 23 July 2021. Return To Normal : Normal traffic conditions are expected between 03:45 and 04:00 on 23 July 2021. Lanes Closed : There is one of three lanes closed.