Drivers in and out of Mid Sussex face diversions while new surfaces are laid on the M23 starting on Monday (February 3).
Sections of the carriageway between Pease Pottage and Crawley will be resurfaced to provide drivers with smoother journeys with the high friction surface being improved on the slip roads as well.
The work will involve overnight carriageway and slip road closures over six nights and should be finished, weather permitting, in the morning of Saturday 15 February.
Anita Waterton, Highways Agency Project Sponsor said: “Safety is a top priority for the Highways Agency; we will improve the skid resistance on the slip roads to improve safety.
“We will also resurface sections of the road to prolong the life of the carriageway and provide drivers with smoother journeys for years to come.”
The work is being done overnight between 8pm and 6am when traffic flows are at their lowest to minimise the disruption.
The northbound carriageway will be closed between junction 11 (Pease Pottage) and junction 10a (Crawley Maidenbower) for three nights from Monday (February 3).
Drivers will have to follow a fully signed diversion via the A23 and A2011.
The northbound entry slip road at junction 10a will be closed for three nights from Wednesday 12 February. A fully signed diversion will be in place via local roads to junction 10.