Press Release

Balfour Beatty reopens the M25 ahead of schedule for the second time in a row

14 May 2024


Balfour Beatty, the UK’s largest infrastructure company, in partnership with National Highways, reopened the M25 over seven hours ahead of schedule, following the second full weekend closure.

The M25 between Junction 9 and 10, was closed at 9pm on Friday 10 May until approximately 11pm on Sunday 12 May, to allow for the installation of 72 beams which will form part of the M25 East Bridge as well as a new gantry, spanning the entire width of the M25 carriageway. Specialist lifting gear was needed to move the beams into place, some of which weighed 40 tonnes each. 

The closure marks the second of five intentional motorway closures planned and builds on the success of the first closure during which Balfour Beatty successfully demolished the Clearmount bridleway bridge and installed a large gantry weighing in at 128 tonnes and spanning 63 metres.

Howard Williams, Balfour Beatty Project Director, said: “We are pleased that we have been able to complete this essential and complex work early and reopen the M25 to the travelling public ahead of schedule.

“Works are progressing well on this critical scheme, and we remain on track to complete in Summer 2025. On completion, the project will significantly improve traffic congestion in the local area whilst also making journeys safer.”

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. Balfour Beatty and National Highways will also install the UK’s first ever heathland bridge, connecting Ockham and Wisley commons and providing a safe, natural corridor for local wildlife.

For more information about the scheme visit the National Highways website.


Media enquiries to:
Vivienne Dunn
Balfour Beatty
+44 (0)203 810 2345 | follow us @balfourbeatty

All non-media related enquiries should be directed to +44 (0)20 7216 6800 or

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.

Vivienne Dunn

Senior Media & PR Manager