Balfour Beatty, the UK's largest infrastructure company, in partnership with National Highways, reopened the M25 eight hours ahead of schedule following a complex bridge demolition operation. The closure required to carry out the work was the first ever since the M25 opened in 1986.
The M25 between junctions 10 and 11 was closed at 9pm on 15th March until 10pm on 17th March, to allow for the demolition of the existing Clearmount bridleway bridge and the installation of a large gantry weighing in at 128 tonnes and spanning 63 metres.
Marking the first of five intentional motorway closures, the work carried out over the weekend builds on the progress Balfour Beatty has already made, having recently demolished the Wisley Lane and Cockcrow footbridges.
On completion, the M25 Junction 10 improvement scheme will increase the number of lanes to make journeys safer and to improve traffic flow; in turn, reducing the pollution caused by traffic build up. It will also make it easier and safer to enter and exit the M25, providing safer entry roads for Wisley, Pyrford, Old Byfleet and RHS Garden Wisley.
As part of the scheme, Balfour Beatty and National Highways, will install the UK’s first ever heathland bridge – the Cockcrow Green Bridge – which will connect Ockham and Wisley commons for the first time and provide a safe, natural corridor for local wildlife.
Howard Williams, Balfour Beatty Project Director, said: “Opening the M25 eight hours ahead of schedule is testament to our team of experts who have worked tirelessly alongside National Highways to complete this major milestone, safely and successfully.
“This was a complex operation, made even more challenging because of the unprecedented closure of the M25. Every effort was made to minimise the impact on road users through careful planning and close collaboration with National Highways.”
Jonathan Wade, National Highways Project Lead, said: “We are delighted that we have been able to complete the work early and reopen the M25 ahead of schedule.
“Drivers have taken on board our advice, which reduced traffic levels by over 50 per cent and meant the length of time added to journeys was around 30 minutes.
“Thank you to everyone for their cooperation that has made carrying out work on this major project to make journeys safer and reduce pollution much easier.
“We are extremely grateful to our delivery partners, Surrey County Council, the emergency services, and everyone else who has supported us this weekend.”
The Junction 10 improvement scheme is due to complete in Summer 2025. For more information about the project and the latest updates including the next closures, please visit: M25 junction 10 - National Highways
ENDS
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Notes to editors:
- Balfour Beatty is a leading international infrastructure group with over 26,000 employees driving the delivery of powerful new solutions, shaping thinking, creating skylines and inspiring a new generation of talent to be the change-makers of tomorrow.
- We finance, develop, build, maintain and operate the increasingly complex and critical infrastructure that supports national economies and deliver projects at the heart of local communities.
- Over the last 114 years we have created iconic buildings and infrastructure all over the world. Currently, we are working to deliver Hinkley Point C, the first UK nuclear power station in a generation; constructing the world-class arts and cultural facility, the Lyric Theatre, in Hong Kong; and designing, building, financing, operating and maintaining the Automated People Mover superstructure at the fifth busiest airport in the world, Los Angeles International Airport.
M25 Clearmount bridge post demolition and installation of new gantry
