A421 southbound within the M1 J13 junction | Southbound | Congestion

Incident timeline

1. 06:35, 6 MayFirst report

   Location : The A421 southbound at the junction with the M1 J13.
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

2. 06:40, 6 MayUpdate

   Location : The A421 southbound at the junction with the M1 J13.
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

3. 07:10, 6 MayUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 35 minutes. Delays of 10 minutes still recorded. Monitoring continues.

4. 07:15, 6 MayUpdate

   Location : The A421 southbound at the junction with the M1 J13.
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

5. 07:45, 6 MayUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 10m. Delays of 10 minutes still recorded. Monitoring continues.

6. 07:50, 6 MayUpdate

   Location : The A421 southbound at the junction with the M1 J13.
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

7. 08:20, 6 MayUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 45m. Delays of 10 minutes still recorded. Monitoring continues.

8. 08:25, 6 MayUpdate

   Location : The A421 southbound at the junction with the M1 J13.
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

9. 08:55, 6 MayUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 20m. Delays of 10 minutes still recorded. Monitoring continues.

10. 09:00, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

11. 09:30, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 55m. Delays of 10 minutes still recorded. Monitoring continues.

12. 09:35, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

13. 10:05, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 3h 30m. Delays of 10 minutes still recorded. Monitoring continues.

14. 10:10, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

15. 10:40, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 5m. Delays of 10 minutes still recorded. Monitoring continues.

16. 10:45, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

17. 11:15, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 40m. Delays of 10 minutes still recorded. Monitoring continues.

18. 11:20, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

19. 11:50, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 15m. Delays of 10 minutes still recorded. Monitoring continues.

20. 11:55, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

21. 12:25, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 50m. Delays of 10 minutes still recorded. Monitoring continues.

22. 12:30, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

23. 13:00, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 25m. Delays of 10 minutes still recorded. Monitoring continues.

24. 13:05, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

25. 13:35, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 0m. Delays of 10 minutes still recorded. Monitoring continues.

26. 13:40, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

27. 14:10, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 35m. Delays of 10 minutes still recorded. Monitoring continues.

28. 14:15, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

29. 14:45, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 10m. Delays of 10 minutes still recorded. Monitoring continues.

30. 14:50, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

31. 15:20, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 45m. Delays of 10 minutes still recorded. Monitoring continues.

32. 15:25, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

33. 15:55, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 20m. Delays of 10 minutes still recorded. Monitoring continues.

34. 16:00, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

35. 16:30, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 55m. Delays of 10 minutes still recorded. Monitoring continues.

36. 16:35, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

37. 19:05, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 30m. Delays of 10 minutes still recorded. Monitoring continues.

38. 19:10, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

39. 19:40, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 5m. Delays of 10 minutes still recorded. Monitoring continues.

40. 19:45, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

41. 20:15, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 40m. Delays of 10 minutes still recorded. Monitoring continues.

42. 20:20, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

43. 20:50, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 15m. Delays of 10 minutes still recorded. Monitoring continues.

44. 20:55, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

45. 21:25, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 50m. Delays of 10 minutes still recorded. Monitoring continues.

46. 21:30, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

47. 22:00, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 25m. Delays of 10 minutes still recorded. Monitoring continues.

48. 22:05, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

49. 22:35, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 0m. Delays of 10 minutes still recorded. Monitoring continues.

50. 22:40, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

51. 23:10, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 35m. Delays of 10 minutes still recorded. Monitoring continues.

52. 23:15, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

53. 23:45, 6 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 10m. Delays of 10 minutes still recorded. Monitoring continues.

54. 23:50, 6 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

55. 00:20, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 45m. Delays of 10 minutes still recorded. Monitoring continues.

56. 00:25, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

57. 00:55, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 18h 20m. Delays of 10 minutes still recorded. Monitoring continues.

58. 01:00, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

59. 01:30, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 18h 55m. Delays of 10 minutes still recorded. Monitoring continues.

60. 01:35, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

61. 02:05, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 19h 30m. Delays of 10 minutes still recorded. Monitoring continues.

62. 02:10, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

63. 02:40, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 5m. Delays of 10 minutes still recorded. Monitoring continues.

64. 02:45, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

65. 03:15, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 40m. Delays of 10 minutes still recorded. Monitoring continues.

66. 03:20, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

67. 03:50, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 15m. Delays of 10 minutes still recorded. Monitoring continues.

68. 03:55, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

69. 04:25, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 50m. Delays of 10 minutes still recorded. Monitoring continues.

70. 04:30, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

71. 05:00, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 25m. Delays of 10 minutes still recorded. Monitoring continues.

72. 05:05, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

73. 05:40, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 5m. Delays of 10 minutes still recorded. Monitoring continues.

74. 05:45, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

75. 06:15, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 40m. Delays of 10 minutes still recorded. Monitoring continues.

76. 06:20, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

77. 06:50, 7 MayUpdate

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

78. 06:55, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

79. 07:25, 7 MayUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 24h 50m. Delays of 10 minutes still recorded. Monitoring continues.

80. 07:30, 7 MayUpdate

    Location : The A421 southbound at the junction with the M1 J13.
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 06:30 and 06:45 on 6 May 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

Wording from National Highways, recorded as it changed.

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