Junction improvement programme
We're investing over £50 million to improve the operation and performance to eight junctions around the M25. The majority of funds are coming from the Department for Transport congestion relief fund.
These improvements will deliver safer and more reliable journeys for our customers, and manage the ever increasing volume of traffic using the M25.
The five schemes currently under way are listed below. The remaining three are:
- M25 junction 2, Kent: Completed
- M25 junction 3, Kent: On hold
- A13 North Stifford, Essex: Start of works - Autumn 2021
Proposed improvements include a reduction in the speed limit from 40mph to 30mph through the residential area and an upgrade of the existing traffic signal timings through the crossroads of the A23 with Netherne Drive and Star Lane.
A new shared footway/cycleway along the A23 will be created, along with widening the A23 northbound to two lanes from Church Lane to Netherne Drive and southbound, again to two lanes, from Netherne Drive to the Esso garage.
Work began in May 2020, with a current focus on the two main islands in the centre of the roundabout, with drainage and excavation works under way. Our teams have recently changed from daytime working to overnight working, and works will now be carried out in shifts between 8pm and 5.30am, Monday to Friday.
Further footway, cycleway and carriageway improvements are planned.
The scheme will include upgrading the traffic signals throughout the junction, adding an extra lane on the A217 northbound approach, widening into the existing verge and extending the anti-clockwise exit slip road.
Works will also add an extra lane on the north circulatory section of the roundabout, widen lanes on the east and west bridge section of the roundabout as well as widen and realign the A217 southbound to two lanes that merge prior to Wray Lane.
The junction 13 improvement scheme is scheduled to complete in late November, with the coming works focusing primarily on the resurfacing of the carriageways, alongside the installation of new street lighting and traffic signals around the junction.
A combination of lane and full carriageway closures will be in place throughout November to enable the works to safely take place. Traffic management will remain in place for the duration of the closures.
We'll provide information through advanced warning signs ahead of works starting, with clearly signed diversions in place for any full closures.
The overall progress of the junction 23 improvement scheme is now over 80% complete. Work on the M25 anti-clockwise exit slip road is now complete, and all required sheet piling works have now been carried out.
Carriageway resurfacing and the installation of new street lighting and traffic signals have commenced on the A1 southbound entry slip road and the junction 23 gyratory.
Work on Bignells Corner has been temporarily suspended and is currently planned to resume in late November.