More on KentOnline
Overnight closures are set to take place on a busy route for two weeks.
From Monday, the London-bound carriageway from Junction 2 of the M2, near Cuxton, to the A2 Darenth junction with the M25, near Dartford, will be shut for essential maintenance work.
During the closures, work will include resurfacing at various locations, replacing lighting, litter picking and vegetation clearance.
Workers will also be removing any debris and redundant traffic management equipment and carriageway sweeping.
The route will be closed between 9pm and 6am between Monday, July 8, and Friday, July 12, and again between Monday, July 15 and Friday, July 19.
A diversion route is in place which can be viewed here.
National Highways has advised drivers to leave extra time for their journeys.