A plan to divert the A43 north of Northampton, as well as make a 1.5 mile stretch of it a dual carriageway, has raised no objections ahead of a planning meeting next week.
Highways bosses said the huge works - which will take place north of Round Spinney roundabout, east of Moulton - will see the A43 run behind the houses to the east of the existing A43 and join a new roundabout at the Overstone Road / Overstone Lane junction.
It also means that The Avenue and Overstone Lane will be closed to cars, meaning the roundabout will be the only way to cross the new highway.
There will also be a new road linking to Sywell Lane from the same roundabout.
North of this, a 900 metre stretch of the current A43 would also be dualled.
Steven Boyes, Northampton Borough Council’s head of planning, said: “The scheme would involve the closure of roadways in the vicinity of the A43 and allow these to be used by the pedestrian and cycle routes only.
“This is considered to provide benefits to non-car users in the locality.
But he adds that the biggest benefit would be to motorists: “The development of the A43 would seem to help improve traffic flows and ease congestion along this section of the road and be of long term benefit to the users of this.”
The proposed new road would run through a new housing estate called Northampton North Sustainable Urban Extension (SUE), which will eventually comprise 2,000 new homes.
It is understood that a significant chunk of the money for the A43 project will come from developers of the new estate.
The county council said the already-approved development meant the new road would not have a significantly greater effect on the landscape than what is already in motion.
Mr Boyes said: “It is accepted that the works proposed could have an impact upon the character of the area by introducing a larher and more visually dominant road, however given that the intention is for the land to the east of the road to be developed as an SUE it is not consdered that this impact would be unacceptable.
“However, the county council is to be advised to incorporate appropriate tree planning / landsacping scheme to mitigate any undue impact.”