More than five months of work to widen and make improvements to the A45 Wilby Way roundabout near Wellingborough will start next month.
The work, which is part of the Government’s £317 million pinch point improvement programme designed to boost local economies, reduce congestion and improve safety, will get under way on Saturday, September 7.
It will involve widening the A45 eastbound entry and exit at Wilby Way roundabout and the A509 entry and exit.
The route around the roundabout will also be widened.
Other improvements will be made to the road surface, drainage, signs, signals and street lighting.
The layby on the A509 will be relocated as part of the work.
Subject to weather conditions, the work is expected to be completed in about 21 weeks.
To ensure completion as quickly as possible, the work will take place both during the day and at night.
While work is under way, there will be speed and lane restrictions in place and sections of the roundabout will also be closed at different times.
Details of these closures will be signposted in advance, together with any diversions.
Highways Agency project manager, Helen Jamieson, said: “Once this work is complete, it will reduce congestion and delays at the junction.
“We ask drivers to please bear with us while this work is carried out and to take extra care and leave extra time for their journeys if necessary.”
The pinch point improvement programme for the strategic road network in England is part of the Government’s growth initiative.
It aims to provide small scale improvements that can deliver big returns by easing congestion and making journey times more reliable for road users, including hauliers and commuters to help boost local economies and drive economic growth.