Motorists face a month of delays 24/7 as resurfacing roadworks begin on the A1M to the south of Peterborough.
Work will start on Friday 8 July at 9pm and take place 24 hours a day, 7 days a week between junctions 15 and 14 of the A1(M) and A14 spur - the southbound carriageway between Sawtry and Alconbury.
It will include reconstruction of the carriageway, renewal of the markings and improvements to drainage. Traffic sensors will also be installed under the surface to help monitor traffic flows more accurately.
Highways England project manager Michael Freeman said: “Completing maintenance activities like drainage improvements and the installation of traffic sensors at the same time as the resurfacing means we won’t need to return on this section of the A1(M) for major repairs for a long time.
“We have planned our work carefully to minimise disruptions to road users and it will be carried out when traffic flows are low.”
While the work is being carried out, there will be narrow lane running and some full road closures with fully signed diversion routes via the B1043, A1 and A14.
The work is dependent on suitable weather conditions and dates may be subject to change.
The work will be complete by August 15.