The A1 will be closed northbound from the exit slip road at North Muskham junction, near Newark, to the Apleyhead slip road, near Retford, from 8pm this evening (Friday 19 June) to 6am on Monday 22 June.
The same stretch of road will be closed the following weekend, from 8pm on Friday 26 June to 6am on Monday 29 June.
The closures are necessary to allow resurfacing work to take place.
Graham Littlechild, project manager for the scheme, said:
We need to close this section so that we can re-align the A1, tie in the new access into the village and raise the road’s surface by more than 80cm in some areas. We can’t do this while traffic is running at the same time, as there isn’t enough space available to do it safely.
There are likely to be delays while this work is under way as the signed diversion route is a single carriageway, and I urge motorists to plan their route ahead and build extra time into their journeys. We apologise for any inconvenience this may cause, but it is essential we can carry out the improvements safely.
This important scheme will improve the layout of the road for everybody who uses it, and motorists can expect improved safety and better journeys when the work has been completed.
During the weekend closures, traffic will be diverted via the B6352, A616 (Great North Road, Ollerton Road, Newark Road, Wellow Road, Back Lane and Ollerton Road) and on to the A614 Blyth Road to re-join the A1.
Members of the public should contact the Highways England customer contact centre on 0300 123 5000.
Journalists should contact the Highways England press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.