An overnight road closure will be enforced on a 1.5 mile section between Tunbridge Wells and Tonbridge for the rest of the month.
Kent Highways, a division of the county council, is completing resurfacing from Speldhurst Road, along the A26 St John’s Road, to St John’s Close.
Teams will work from 9pm to 6am on 20 weeknights from August 1 to 31, with weekends excluded.
The primary diversion route will be through High Brooms residential estate and, for large goods vehicles, via the A21 bypass.