The dualling of the A21 between Tonbridge and Pembury will start next month (April).
The £69.7 million scheme, which will be carried out by Balfour Beatty, will see a 2.5 mile section of the A21 between Tonbridge and Pembury in Kent upgraded from single to dual carriageway, adding a lane in each direction, upgrading junctions and improving the road layout
Preparatory work on the scheme has been underway since winter 2014 and it is anticipated that the scheme will be fully complete by spring 2017.
Highways Agency project manager Graham Link said: “The A21 is a vital route linking the region to the M25 and London. The new section will provide much needed capacity to reduce congestion and will also improve safety with a better road layout and new junctions provided.”
The work will start in mid-April and traffic management measures will be necessary.