M1 southbound between J21 and J20 | Southbound | Congestion

Incident timeline

1. 16:06, 28 JunFirst report

   Location : The M1 southbound between junctions J21 and J20 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
   Delay : There are currently delays of 15 minutes against expected traffic.

2. 16:10, 28 JunUpdate

   Location : The M1 southbound between junctions J21 and J20 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
   Delay : There are currently delays of 15 minutes against expected traffic.

3. 16:40, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 34 minutes. Delays of 15 minutes still recorded. Monitoring continues.

4. 16:45, 28 JunUpdate

   Location : The M1 southbound between junctions J21 and J20 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
   Delay : There are currently delays of 15 minutes against expected traffic.

5. 17:15, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 9m. Delays of 15 minutes still recorded. Monitoring continues.

6. 17:20, 28 JunUpdate

   Location : The M1 southbound between junctions J21 and J20 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
   Delay : There are currently delays of 15 minutes against expected traffic.

7. 17:50, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 44m. Delays of 15 minutes still recorded. Monitoring continues.

8. 17:55, 28 JunUpdate

   Location : The M1 southbound between junctions J21 and J20 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
   Delay : There are currently delays of 15 minutes against expected traffic.

9. 18:25, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 19m. Delays of 15 minutes still recorded. Monitoring continues.

10. 18:30, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

11. 19:05, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 59m. Delays of 15 minutes still recorded. Monitoring continues.

12. 19:10, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

13. 19:40, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 3h 34m. Delays of 15 minutes still recorded. Monitoring continues.

14. 19:45, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

15. 20:15, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 9m. Delays of 15 minutes still recorded. Monitoring continues.

16. 20:20, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

17. 20:55, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 49m. Delays of 15 minutes still recorded. Monitoring continues.

18. 21:00, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

19. 21:35, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 29m. Delays of 15 minutes still recorded. Monitoring continues.

20. 21:40, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

21. 22:15, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 9m. Delays of 15 minutes still recorded. Monitoring continues.

22. 22:20, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

23. 22:50, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 44m. Delays of 15 minutes still recorded. Monitoring continues.

24. 22:55, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

25. 23:25, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 19m. Delays of 15 minutes still recorded. Monitoring continues.

26. 23:30, 28 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

27. 00:00, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 54m. Delays of 15 minutes still recorded. Monitoring continues.

28. 00:05, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

29. 00:35, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 29m. Delays of 15 minutes still recorded. Monitoring continues.

30. 00:40, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

31. 01:15, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 9m. Delays of 15 minutes still recorded. Monitoring continues.

32. 01:20, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

33. 01:50, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 44m. Delays of 15 minutes still recorded. Monitoring continues.

34. 01:55, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

35. 02:30, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 10h 24m. Delays of 15 minutes still recorded. Monitoring continues.

36. 02:35, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

37. 03:05, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 10h 59m. Delays of 15 minutes still recorded. Monitoring continues.

38. 03:10, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

39. 03:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 39m. Delays of 15 minutes still recorded. Monitoring continues.

40. 03:50, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

41. 04:25, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 19m. Delays of 15 minutes still recorded. Monitoring continues.

42. 04:30, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

43. 05:00, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 54m. Delays of 15 minutes still recorded. Monitoring continues.

44. 05:05, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

45. 05:35, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 29m. Delays of 15 minutes still recorded. Monitoring continues.

46. 05:40, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

47. 06:10, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 4m. Delays of 15 minutes still recorded. Monitoring continues.

48. 06:15, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

49. 06:50, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 44m. Delays of 15 minutes still recorded. Monitoring continues.

50. 06:55, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

51. 07:30, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 24m. Delays of 15 minutes still recorded. Monitoring continues.

52. 07:35, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

53. 08:10, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 4m. Delays of 15 minutes still recorded. Monitoring continues.

54. 08:15, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

55. 08:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 39m. Delays of 15 minutes still recorded. Monitoring continues.

56. 09:10, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

57. 09:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 39m. Delays of 15 minutes still recorded. Monitoring continues.

58. 09:50, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

59. 10:20, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 18h 14m. Delays of 15 minutes still recorded. Monitoring continues.

60. 10:25, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

61. 10:55, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 18h 49m. Delays of 15 minutes still recorded. Monitoring continues.

62. 11:00, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

63. 11:35, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 19h 29m. Delays of 15 minutes still recorded. Monitoring continues.

64. 11:40, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

65. 12:10, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 4m. Delays of 15 minutes still recorded. Monitoring continues.

66. 12:15, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

67. 12:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 39m. Delays of 15 minutes still recorded. Monitoring continues.

68. 12:50, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

69. 13:25, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 19m. Delays of 15 minutes still recorded. Monitoring continues.

70. 13:30, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

71. 14:00, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 54m. Delays of 15 minutes still recorded. Monitoring continues.

72. 14:05, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

73. 14:35, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 29m. Delays of 15 minutes still recorded. Monitoring continues.

74. 14:40, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

75. 15:15, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 9m. Delays of 15 minutes still recorded. Monitoring continues.

76. 15:20, 29 JunUpdate

    Location : The M1 southbound between junctions J21 and J20 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 16:00 and 16:15 on 28 June 2026.
    Delay : There are currently delays of 15 minutes against expected traffic.

Wording from National Highways, recorded as it changed.

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