New phase of A23 widening work to begin in West Sussex
A new phase of a £76.9m scheme to widen the A23 in West Sussex is to begin on Thursday.
The engineering works are taking place overnight for four nights between Handcross and Warninglid.
Traffic will be rerouted from the southbound carriageway to the new northbound section, with the southbound slip road closed at Handcross.
Once complete, the scheme will extend a 2.5-mile (4km) section of road to three lanes in each direction.
Motorists will be directed to use the rebuilt northbound carriageway and the entry slip will be closed for reconstruction. It is expected to reopen in September.
Chris Bacon, Highways Agency manager, said: "This is a major milestone for the project and by Monday morning drivers will see a significant change to their route through work."
The site is just south of Gatwick Airport and on the main road between London and Brighton.
The stretch of road being widened is used by 70,000 vehicles a day.