M4 J8 westbound exit | Westbound | Congestion

Incident timeline

1. 15:05, 28 JunFirst report

   Location : The M4 westbound exit slip at junction J8 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

2. 15:10, 28 JunUpdate

   Location : The M4 westbound exit slip at junction J8 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

3. 15:45, 28 JunUpdate

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

4. 15:50, 28 JunUpdate

   Location : The M4 westbound exit slip at junction J8 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

5. 16:20, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 15m. Delays of 10 minutes still recorded. Monitoring continues.

6. 16:25, 28 JunUpdate

   Location : The M4 westbound exit slip at junction J8 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

7. 16:55, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 50m. Delays of 10 minutes still recorded. Monitoring continues.

8. 17:00, 28 JunUpdate

   Location : The M4 westbound exit slip at junction J8 .
   Reason : Congestion.
   Status : Currently Active.
   Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
   Delay : There are currently delays of 10 minutes against expected traffic.

9. 17:35, 28 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 30m. Delays of 10 minutes still recorded. Monitoring continues.

10. 17:40, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

11. 18:15, 28 JunUpdate

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

12. 18:20, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

13. 18:50, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 3h 45m. Delays of 10 minutes still recorded. Monitoring continues.

14. 18:55, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

15. 19:25, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 20m. Delays of 10 minutes still recorded. Monitoring continues.

16. 19:30, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

17. 20:00, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 55m. Delays of 10 minutes still recorded. Monitoring continues.

18. 20:05, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

19. 20:35, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 30m. Delays of 10 minutes still recorded. Monitoring continues.

20. 20:40, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

21. 21:10, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 5m. Delays of 10 minutes still recorded. Monitoring continues.

22. 21:15, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

23. 21:50, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 45m. Delays of 10 minutes still recorded. Monitoring continues.

24. 21:55, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

25. 22:25, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 20m. Delays of 10 minutes still recorded. Monitoring continues.

26. 22:30, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

27. 23:00, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 55m. Delays of 10 minutes still recorded. Monitoring continues.

28. 23:05, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

29. 23:40, 28 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 35m. Delays of 10 minutes still recorded. Monitoring continues.

30. 23:45, 28 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

31. 00:20, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 15m. Delays of 10 minutes still recorded. Monitoring continues.

32. 00:25, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

33. 00:55, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 50m. Delays of 10 minutes still recorded. Monitoring continues.

34. 01:00, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

35. 01:30, 29 JunUpdate

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

36. 01:35, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

37. 02:05, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 0m. Delays of 10 minutes still recorded. Monitoring continues.

38. 02:10, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

39. 02:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 40m. Delays of 10 minutes still recorded. Monitoring continues.

40. 02:50, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

41. 03:20, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 15m. Delays of 10 minutes still recorded. Monitoring continues.

42. 03:25, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

43. 04:00, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 55m. Delays of 10 minutes still recorded. Monitoring continues.

44. 04:05, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

45. 04:35, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 30m. Delays of 10 minutes still recorded. Monitoring continues.

46. 04:40, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

47. 05:10, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 5m. Delays of 10 minutes still recorded. Monitoring continues.

48. 05:15, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

49. 05:45, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 40m. Delays of 10 minutes still recorded. Monitoring continues.

50. 05:50, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

51. 06:20, 29 JunUpdate

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

52. 06:25, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

53. 06:55, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 50m. Delays of 10 minutes still recorded. Monitoring continues.

54. 07:00, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

55. 07:30, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 25m. Delays of 10 minutes still recorded. Monitoring continues.

56. 07:35, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

57. 08:10, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 5m. Delays of 10 minutes still recorded. Monitoring continues.

58. 08:15, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

59. 09:25, 29 JunUpdate

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

60. 09:30, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

61. 10:00, 29 JunUpdate

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

62. 10:05, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

63. 10:40, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 19h 35m. Delays of 10 minutes still recorded. Monitoring continues.

64. 10:45, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

65. 11:20, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 15m. Delays of 10 minutes still recorded. Monitoring continues.

66. 11:25, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

67. 11:55, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 50m. Delays of 10 minutes still recorded. Monitoring continues.

68. 12:00, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

69. 12:30, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 25m. Delays of 10 minutes still recorded. Monitoring continues.

70. 12:35, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

71. 13:05, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 0m. Delays of 10 minutes still recorded. Monitoring continues.

72. 13:10, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

73. 13:40, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 35m. Delays of 10 minutes still recorded. Monitoring continues.

74. 13:45, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

75. 14:15, 29 JunUpdate

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

76. 14:20, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

77. 14:50, 29 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 45m. Delays of 10 minutes still recorded. Monitoring continues.

78. 14:55, 29 JunUpdate

    Location : The M4 westbound exit slip at junction J8 .
    Reason : Congestion.
    Status : Currently Active.
    Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 28 June 2026.
    Delay : There are currently delays of 10 minutes against expected traffic.

Wording from National Highways, recorded as it changed.

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