Works to replace worn out carriageway on Fen Road in Heighington will start on Monday 16 August.
The works are expected to last until Saturday 21 August (subject to weather) and will be carried out under a 24/7 road closure, including overnight working on Friday 20 August.
The diversion route will be via B1190 / Lincoln Eastern Bypass / B1188 Lincoln Road / B1202 / B1190, and vice versa.
Karen Cassar, assistant director for highways at Lincolnshire County Council, said: "This section of Fen Road is nearing the end of it serviceable life, so we're taking the opportunity to replace it.
"This work will inevitably cause some disruption, but we'll be doing everything we can to keep this to a minimum.
"Once complete, these improvements will make travelling on the B1190 near Heighington safer and more comfortable for all road users."
For up-to-date information about this and other roadworks, visit www.lincolnshire.gov.uk/roadworks.