Location : The M1 northbound exit slip at junction J21 . Lane Closures : Lane one will be closed. Reason : Horticultural works are planned. Status : Pending. Schedule : From 20:00 on 13 September 2020 to 06:00 on 14 September 2020. Lanes Closed : There will be one of two lanes closed.News Courtesy: highwaysengland.co.uk