The A46 will be subject to lane closure while a roundabout for a major development near the bypass is completed.
To improve traffic flow near the Teal Park development, a new roundabout will be added at the junction of Whisby Road and the A46.
This means that from July 28, motorists will not be able to use Whisby Road between the A46 and Kingsley Road for around eight weeks.
Those wishing to get onto the A46 will now have to use Doddington Road or Newark Road roundabouts.
Guy Blumer, Principal Engineer, said: “Teal Park will be one of the largest business parks in the East Midlands and a new roundabout at the junction of Whisby Road with the A46 is needed to help ensure traffic flows smoothly and safely between the A46, the new development and beyond.
“Temporarily closing the Whisby Road east junction means our contractor can complete the work more quickly, allowing the new roundabout to be opened ahead of schedule.
“It shouldn’t impact on journey times too much, as there are alternative routes available for motorists close by.
“The work is being carried out over the summer to take advantage of the holiday period when traffic is lighter.
“We’d like to thank motorists for bearing with us while these improvements are taking place, which are due to be finished early next year.”
To find out more about highway developments due to Teal Park, visit the Lincolnshire County Council website or call 01522 782070 with queries.