A303: More roadworks at Countess Roundabout

A303: More roadworks at Countess Roundabout

Published by Mike Draper at 4:00pm 3rd November 2019. (Updated at 10:47am 5th November 2019)

3 minute read

The next phase of investigation work, as part of the Stonehenge tunnel project, will begin today (Monday 4th November).

Highways England is advising drivers to allow extra time for journeys because of the work.


This is all part of Geotechnical surveys that Highways England have been carrying out around the Stonehenge area since June.

They've just finished drainage and sewage surveys, and now there will be a further six weeks of possible disruption around Countess roundabout at Amesbury.

Following initial vegetation clearance, work will involve the drilling of boreholes and digging of trial pits, and with lane closures in place for safety reasons, drivers are advised to expect some delays to their journeys.

Countess roundabout will be reduced to a single lane - Monday to Friday only - until 16th December, with the eastbound and westbound approaches and exit roads also reduced to single lanes.

During the work around Countess roundabout, road surface surveys are also being undertaken at Solstice Park, for four nights from 11th November, and at Winterbourne Stoke, between 18th-22nd November. 

The latter work will see the eastbound carriageway closed overnight between 8pm and 6am with temporary traffic lights in place.


This is all taking place to get ready for the proposed upgrade of the A303 between Amesbury and Berwick Down.

That £1.7 billion improvement scheme includes: 

  • 8 miles of free-flowing, high-quality dual carriageway
  • A tunnel at least 2 miles long underneath the World Heritage Site, closely following the existing A303 route, but a further 50 metres away from the Stonehenge monument, avoiding important archaeological sites, and avoiding intrusion on the view of the setting sun from the stones during the winter solstice 
  • A new bypass to the north of the village of Winterbourne Stoke 
  • Junctions with the A345 and A360 either side of the World Heritage Site

David Bullock, Highways England Project Manager, explained how these ongoing surveys help prepare for the bigger project: 

"While this essential work continues around Countess Roundabout, we'd like to thank local communities and road users in advance for their patience.

"The ground investigations are taking place to help bidders with their tenders, to ensure there is no delay to the programme and put us in a position to be able to start construction on schedule in 2021, providing consent is given."

Highways England A303 Stonehenge Tunnel February 2018 3 (Highways England)
An artist's impression of the proposed upgrade to the A303 by Stonehenge


For anyone wanting more details of the survey work, Highways England will be holding a pop-up information stand at the Tesco Superstore in Amesbury on 14th November (10am-4pm).

For those unable to attend, details of the ground investigation work can be found on the Highways England website.   


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