Lincolnshire County Council and West Lindsey District Council are working together on the project to install new traffic lights at the Corringham Road/Thorndike Way junction.
The scheme is being jointly funded by LCC, West Lindsey District Council and Greater Lincolnshire LEP.
Work is expected to take 12 weeks to complete, subject to suitable weather conditions and it will start on September 7, so motorists should expect some disruption.
Coun Clio Perraton-Williams, county councillor for Scotter, and rural and executive support councillor for highways, said: “Over the years, we’ve made a number of improvements to this vital junction, all aimed at reducing the number of serious collisions.
“However, the local community has been calling for traffic lights or a roundabout here for some time, and I’m pleased that we can now make it happen.
“When complete, the new signals we’re installing will help increase safety even further, while ensuring that the junction can cope with the extra traffic generated by any new housing in the surrounding area over the coming years.”
Coun Richard Davies, executive member for highways, said: “As with any other major improvement project, there will inevitably be some disruption on local roads while work is underway.
“This will be inconvenient to many, but I want to assure everyone that the long-term benefits will be well worth it in the end.”
Coun Owen Bierley, chairman of the prosperous communities committee, added: “As part of West Lindsey District Council’s commitment to the growth and regeneration of Gainsborough, we have worked with Lincolnshire County Council, Greater Lincolnshire LEP and local landowners to secure a funding package that will see the safety and efficiency of the Corringham Road/Thorndike Way junction improved.”
Coun Bierley concluded: “The upgraded junction will not only be safer for road users and pedestrians but will also allow for future housing growth in this part of Gainsborough.”