A303 - Road traffic collision

The A303 is closed westbound in Wiltshire following a serious collision in which a car left the carriageway.

The closure is expected to remain in place for the rest of the day while police carry out collision investigation work. 

Diversion Routes

Road users travelling westbound are advised to follow the solid circle diversion symbol on road signs:

• Exit the A303 at the junction with the A36 at Deptford
• Keep left on the exit slip (for Salisbury/Warminster)
• Further up the slip/link exit on the left for Bath/Warminster to join the A36 westbound.
• Travel along the A36 for approximately 10 miles, passing through Codford and Heytesbury, to reach the roundabout with the A350 at Warminster.
• Take the first exit onto the A350 southbound towards Poole/Blandford.
• Remain on the A350 for approximately 6 miles, passing through Longbridge Deverill, to the junction with the A303 to continue your journey 

If this closure impacts on your planned route, please allow extra journey time. Plan ahead, you may wish to re-route or even delay your journey. 

Further information is available from National Highways via our regional twitter feed. Our 24/7 contact centre team is also available to provide up to the minute information on 0300 123 5000.