M4 J11 westbound exit | Westbound | Accident

Incident timeline

1. 18:20, 25 JunFirst report

   Location : The M4 westbound exit slip at junction J11 .
   Reason : Road traffic collision.
   Status : Currently Active.
   Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
   Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
   Lanes Closed : There are lane closures.

2. 18:25, 25 JunUpdate

   Location : The M4 westbound exit slip at junction J11 .
   Reason : Road traffic collision.
   Status : Currently Active.
   Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
   Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
   Lanes Closed : There are lane closures.

3. 18:55, 25 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 34 minutes. Monitoring continues.

4. 19:00, 25 JunUpdate

   Location : The M4 westbound exit slip at junction J11 .
   Reason : Road traffic collision.
   Status : Currently Active.
   Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
   Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
   Lanes Closed : There are lane closures.

5. 19:30, 25 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 9m. Monitoring continues.

6. 19:35, 25 JunUpdate

   Location : The M4 westbound exit slip at junction J11 .
   Reason : Road traffic collision.
   Status : Currently Active.
   Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
   Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
   Lanes Closed : There are lane closures.

7. 20:05, 25 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 1h 44m. Monitoring continues.

8. 20:10, 25 JunUpdate

   Location : The M4 westbound exit slip at junction J11 .
   Reason : Road traffic collision.
   Status : Currently Active.
   Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
   Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
   Lanes Closed : There are lane closures.

9. 20:40, 25 JunUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 19m. Monitoring continues.

10. 20:45, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

11. 21:15, 25 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 2h 54m. Monitoring continues.

12. 21:20, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

13. 21:50, 25 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 3h 29m. Monitoring continues.

14. 21:55, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

15. 22:25, 25 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 4m. Monitoring continues.

16. 22:30, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

17. 23:00, 25 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 4h 39m. Monitoring continues.

18. 23:05, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

19. 23:35, 25 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 14m. Monitoring continues.

20. 23:40, 25 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

21. 00:10, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 5h 49m. Monitoring continues.

22. 00:15, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

23. 00:45, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 24m. Monitoring continues.

24. 00:50, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

25. 01:20, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 6h 59m. Monitoring continues.

26. 01:25, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

27. 01:55, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 7h 34m. Monitoring continues.

28. 02:00, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

29. 02:30, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 9m. Monitoring continues.

30. 02:35, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

31. 03:05, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 8h 44m. Monitoring continues.

32. 03:10, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

33. 03:40, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 19m. Monitoring continues.

34. 03:45, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

35. 04:15, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 54m. Monitoring continues.

36. 04:20, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

37. 04:55, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 10h 34m. Monitoring continues.

38. 05:00, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

39. 05:30, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 9m. Monitoring continues.

40. 05:35, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

41. 06:05, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 44m. Monitoring continues.

42. 06:10, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

43. 06:40, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 19m. Monitoring continues.

44. 06:45, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

45. 07:20, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 59m. Monitoring continues.

46. 07:25, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

47. 07:55, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 34m. Monitoring continues.

48. 08:00, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

49. 08:35, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 14m. Monitoring continues.

50. 08:40, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

51. 09:10, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 49m. Monitoring continues.

52. 09:15, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

53. 09:50, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 29m. Monitoring continues.

54. 09:55, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

55. 10:25, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 4m. Monitoring continues.

56. 10:30, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

57. 11:00, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 40m. Monitoring continues.

58. 11:05, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

59. 11:35, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 14m. Monitoring continues.

60. 11:40, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

61. 12:10, 26 JunUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 49m. Monitoring continues.

62. 12:15, 26 JunUpdate

    Location : The M4 westbound exit slip at junction J11 .
    Reason : Road traffic collision.
    Status : Currently Active.
    Time To Clear : The event is expected to clear between 19:15 and 19:30 on 25 June 2026.
    Return To Normal : Normal traffic conditions are expected between 19:15 and 19:30 on 25 June 2026.
    Lanes Closed : There are lane closures.

Wording from National Highways, recorded as it changed.

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