Motorists are being urged to plan alternative routes while the final stage of improvements is carried out at a new roundabout at Thinford, near Spennymoor.
As part of the highways enhancements linked to the DurhamGate development drivers are being given advance notice that the A167 between Thinford and Croxdale roundabout will be closed this weekend.
The closure will be in place from 8pm on Friday (18th May) until 8pm Sunday (20th May) and is required to allow the completion of the surfacing at the Coach & Horses roundabout and associated road markings. Hett Lane and York Hill Road will also be closed during this time.
An alternative route will be available for vehicles approaching from the southern side of the closure from A167 Thinford roundabout westerly along A688 to Merrington Lane roundabout at Low Spennymoor then northerly along B6288 North Road through Tudhoe Colliery to A167 at Croxdale to the northern side of the closure, and vice versa.
Access from York Hill Road to A167 is either north along B6288 or south via B6288 and east along A688. Access from Hett to A167 is via Sunderland Bridge or Leemans Lane to A688.