The county council says work on the new Grantham southern bypass is making progress.
Lincolnshire County Council says work is starting on a permanent boundary fence before construction works start later this summer.
A council spokesman said: “We have made a start which involved the hedge/scrub clearance; this was required in advance of the bird nesting season. We are now preparing to provide a permanent boundary fence prior to the construction works which should start later this summer.”
County councillor Richard Davies, executvie member for highways, said: “Progress is good, site clearance is underway and we should see more progress over the coming weeks.”
Three months ago, when clearance work started at Spittlegate Level, Coun Davies, on a site visit with a group of local councillors, said: “Diggers will be on site in two or three months from now. We need to get the hedges out now to avoid the bird season which is key from an ecological point of view.
“I think what this really shows is the commitment the local authorities together have made.”
The new southern bypass will link the A1 with the roundabout at the top of Somerby Hill on the A52.
It is being built in conjunction with the southern quadrant development of 4,000 houses at Spittlegate Heath and the KiNG 31 industrial development next to the A1.