Location : The M1 northbound exit slip at junction J21A for A46/B5380. Reason : Accident involving an overturned vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 15:30 and 15:45 on 21 December 2023. Return To Normal : Normal traffic conditions are expected between 15:30 and 15:45 on 21 December 2023. Lanes Closed : All lanes are closed.News Courtesy: highwaysengland.co.uk