The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
RoadA31
SeveritySevere
StatusCleared
DirectionBoth directions
Started19:09, 8 Sep 2026
Cleared21:46, 8 Sep 2026
Incident timeline
First report
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Update
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 7m. Monitoring continues.
Update
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 42m. Monitoring continues.
Update
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Update
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 17m. Monitoring continues.
Update
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Update
✅ Incident cleared — A31 reopened at 21:46 on 8 Sep 2026. Total disruption: 2h 37m. All lanes open, traffic returning to normal.
Final update
The A31 in Dorset is closed in both directions between the A349 (Merley Roundabout) and the A350 (Roundhouse roundabout) for a Dorset & Wiltshire Fire led incident. 
Wording from National Highways, recorded as it changed.
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