M23 junction 8 to 10 upgrade - Smart Motorway Project
Weekend road closures
There are planned weekend closures on the M23 between junction 8 Merstham and junction 10 Copthorne. The works will be carried out over the following five weekends between 9pm on Friday and 5am on Monday.
- Friday 28 February - Monday 2 March (Northbound junctions 10 to 8)
- Friday 6 March - Monday 9 March (Southbound junctions 8 to 10)
- Friday 13 March - Monday 16 March (Northbound junctions 10 to 8)
- Friday 20 March - Monday 23 March (Southbound junctions 8 to 10)
- Friday 27 March - Sunday 29 March at 1am (Northbound junctions 10 to 8)
- Sunday 29 March at 1am - Monday 30 March at 5am (Southbound junctions 8 to 10)
Highways England are carrying out a two year project to upgrade the M23 motorway near Gatwick Airport. Works started in June 2018 and will result in huge benefits for drivers travelling through the area.
Up-to-date information about the work is available on the Highways England website.
You can also call 0300 123 5000 or 07592 116175 to find out more information.
The work will be carried out between junction 8 at Merstham and junction 10 at Copthorne. When finished, this will see the motorway expand from three to four lanes to help ease congestion, provide safer journeys and allow for the introduction of advanced technology to improve traffic flow. The much-needed improvements are a priority on this particularly busy 11-mile stretch of road near Gatwick Airport.
The project has been carefully planned to try to minimise the impact for drivers as much as possible. However, due to the amount of construction that needs to be carried out, drivers should expect some disruption with minimal delays.
During the two-year project the motorway will be subject to narrow lanes with reduced speeds, and will require occasional lane closures and full overnight closures at various times during the construction period. Alternative routes and diversions will be introduced to help ease traffic flow.
Highways England is responsible for the project and has appointed Kier to carry out the construction work, which is due for completion in March 2020.
This upgrade is part of a national programme known as 'smart motorways' managed by Highways England, a technology-driven approach to the use of motorways, increasing capacity and relieving congestion while maintaining safety.
Residents are being advised to allow extra time when travelling in the area and to check for travel updates before they set off on journeys.
Files available to download
- M23 weekend closures information (PDF)
Road closure dates and maps of the M23 weekend works