A303 | Somerset | Carriageway Closure | Expect Delays

Incident timeline

1. 21:56, 17 AugFirst report

   The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

2. 07:06, 18 AugUpdate

   The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

3. 07:41, 18 AugUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 9h 45m. Monitoring continues.

4. 07:46, 18 AugUpdate

   The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

5. 08:16, 18 AugUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 10h 20m. Monitoring continues.

6. 08:21, 18 AugUpdate

   The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

7. 08:51, 18 AugUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 10h 55m. Monitoring continues.

8. 08:56, 18 AugUpdate

   The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

9. 09:26, 18 AugUpdate

   ⏱ Still active — no changes from National Highways. Incident ongoing for 11h 30m. Monitoring continues.

10. 09:31, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

11. 10:01, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 5m. Monitoring continues.

12. 10:06, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

13. 10:36, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 12h 40m. Monitoring continues.

14. 10:41, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

15. 11:11, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 15m. Monitoring continues.

16. 11:16, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

17. 11:46, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 13h 50m. Monitoring continues.

18. 11:51, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

19. 12:21, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 14h 25m. Monitoring continues.

20. 12:26, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

21. 12:56, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 0m. Monitoring continues.

22. 13:01, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

23. 13:31, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 15h 35m. Monitoring continues.

24. 13:36, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

25. 14:06, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 10m. Monitoring continues.

26. 14:11, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

27. 14:41, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 16h 45m. Monitoring continues.

28. 14:46, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

29. 15:16, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 20m. Monitoring continues.

30. 15:21, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

31. 15:51, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 17h 55m. Monitoring continues.

32. 15:56, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

33. 16:26, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 18h 30m. Monitoring continues.

34. 16:31, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

35. 17:01, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 19h 5m. Monitoring continues.

36. 17:06, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

37. 17:36, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 19h 40m. Monitoring continues.

38. 17:41, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

39. 18:11, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 15m. Monitoring continues.

40. 18:16, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

41. 18:51, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 20h 55m. Monitoring continues.

42. 18:56, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

43. 19:26, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 21h 30m. Monitoring continues.

44. 19:31, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

45. 20:06, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 10m. Monitoring continues.

46. 20:11, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

47. 20:41, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 22h 45m. Monitoring continues.

48. 20:46, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

49. 21:16, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 20m. Monitoring continues.

50. 21:21, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

51. 21:51, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 23h 55m. Monitoring continues.

52. 21:56, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

53. 22:26, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 24h 30m. Monitoring continues.

54. 22:31, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

55. 23:01, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 25h 5m. Monitoring continues.

56. 23:06, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

57. 23:41, 18 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 25h 45m. Monitoring continues.

58. 23:46, 18 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

59. 00:16, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 26h 20m. Monitoring continues.

60. 00:21, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

61. 00:56, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 27h 0m. Monitoring continues.

62. 01:01, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

63. 01:31, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 27h 35m. Monitoring continues.

64. 01:36, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

65. 02:06, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 28h 10m. Monitoring continues.

66. 02:11, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

67. 02:46, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 28h 50m. Monitoring continues.

68. 02:51, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

69. 03:21, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 29h 25m. Monitoring continues.

70. 03:26, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

71. 03:56, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 30h 0m. Monitoring continues.

72. 04:01, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

73. 04:31, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 30h 35m. Monitoring continues.

74. 04:36, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

75. 05:06, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 31h 10m. Monitoring continues.

76. 05:11, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

77. 05:41, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 31h 45m. Monitoring continues.

78. 05:46, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

79. 06:21, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 32h 25m. Monitoring continues.

80. 06:26, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with vegetation.

81. 06:56, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

82. 07:26, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 33h 30m. Monitoring continues.

83. 07:31, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

84. 08:01, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 34h 5m. Monitoring continues.

85. 08:06, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

86. 08:36, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 34h 40m. Monitoring continues.

87. 08:41, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

88. 09:16, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 35h 20m. Monitoring continues.

89. 09:21, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

90. 09:51, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 35h 55m. Monitoring continues.

91. 09:56, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

92. 10:26, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 36h 30m. Monitoring continues.

93. 10:31, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

94. 11:01, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 37h 5m. Monitoring continues.

95. 11:06, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

96. 11:36, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 37h 40m. Monitoring continues.

97. 11:41, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

98. 12:11, 19 AugUpdate

    ⏱ Still active — no changes from National Highways. Incident ongoing for 38h 15m. Monitoring continues.

99. 12:16, 19 AugUpdate

    The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

100. 12:51, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 38h 55m. Monitoring continues.

101. 12:56, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

102. 13:26, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 39h 30m. Monitoring continues.

103. 13:31, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) due to a lorry fire which is fully laden with hay bales.

104. 14:01, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

105. 14:36, 19 AugUpdate

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

106. 14:41, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

107. 15:11, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 41h 15m. Monitoring continues.

108. 15:16, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

109. 15:46, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 41h 50m. Monitoring continues.

110. 15:51, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

111. 16:21, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 42h 25m. Monitoring continues.

112. 16:26, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

113. 16:56, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 43h 0m. Monitoring continues.

114. 17:01, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

115. 17:31, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 43h 35m. Monitoring continues.

116. 17:36, 19 AugUpdate

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

117. 18:06, 19 AugUpdate

     ⏱ Still active — no changes from National Highways. Incident ongoing for 44h 10m. Monitoring continues.

118. 18:06, 19 AugUpdate

     ✅ Incident cleared — A303 reopened at 18:06 on 19 Aug 2026. Total disruption: 44h 10m. All lanes open, traffic returning to normal.

119. 16:56, 6 NovFinal update

     The A303 is closed westbound between the A358 (Horton Cross) and the A30 (Upottery) to allow emergency resurfacing works to take place following a lorry fire.

Wording from National Highways, recorded as it changed.

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