Work has already been completed at North Brunton interchange, the Stannington roundabouts and Stannington interchange.
Highways Agency project manager, Nick Adshead, said:
This is essential carriageway maintenance work which will improve the road surface and also provide new road markings and road studs. The final phase of the work at Stannington Vale will begin next week. We would like to take this opportunity to advise drivers that during this work there will be northbound A1 exit and entry slip road closures, which will require drivers to use long diversion routes. We ask that drivers plan their journeys in the area during the work and leave extra time.
Work at Stannington Vale will be carried out 24 hours a day from 27 October to 9 November. During the work it will be necessary to close the northbound A1 between Seven Mile House and High Clifton, with drivers in contraflow on the southbound carriageway, maintaining two-way traffic flow on the A1. Northbound exit and entry slip roads within length of the contraflow will be closed and there will be clearly signed diversion routes.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.