A23 and M23 motorists face months of road closures
Work begins on Monday on a major route between London, Surrey and the East Sussex coast, with road closures scheduled for several months.
Carriageway resurfacing and maintenance work is being carried out between junction eight of the M23 and the A23 through Hooley in Surrey.
The work will take place overnight, with some diversions put in place, the Highways Agency said.
The £1.8m scheme is due to be completed in October.
Sections of the M23, including link roads around the M25 /M23 junction, and the A23 will be closed at different stages.
Southern Gas Networks is also replacing the gas main in central Hooley.
Janice Burgess, Highways Agency asset manager, said: "We are working with Southern Gas Networks to ensure our work is co-ordinated and the Highways Agency work will be done overnight, when traffic flows are lowest, which should minimise disruption.
"There will be no traffic restrictions during the day."