Weekend slip road closures on M25 as Junction 10 project progresses

A series of slip road closures over three weekends will mean drivers travelling on the M25 or A3 will have to use junction 10 differently.  

The slip roads on and off the junction will be shut for two weekends in October and one at the start of November, but the A3 and M25 will both remain open for traffic. 

These slip road closures mean drivers will not be able to join or leave the M25 or A3 at junction 10 and will have to take the relevant diversion route to complete their journeys. This will mean using either junction 9 Leatherhead or junction 11 Chertsey instead.  

The slip roads at the junction will close at 9pm on Fridays each weekend and reopen by 6am on Mondays on the following dates: 

• 4 – 7 October 
• 18 – 21 October 
• 1 – 4 November 

The purpose of these slip road closures is to make changes to junction 10 itself and gradually bring into use jet lanes which avoid the traffic signals. The work represents the first stage of real benefits for drivers passing through junction 10. 

Jonathan Wade, Senior Project Manager for National Highways, said: 

“It is important that the public know this is not a closure of the M25 as we have seen on three occasions earlier this year.  

“Work continues on the junction 10 project and these three weekends will allow us to carry out the next phase of the scheme.  

“I would urge drivers to think about how these slip road closures will affect their journeys and make sure they follow the official diversion routes we have provided.” 

All diversion routes can be found at the M25 junction 10 page.

There may be delays on these diversion routes, so motorists are being urged to plan their journeys in advance, especially those travelling on the M3, M23 and the A24. 

Notes to Editors

National Highways is the wholly government-owned company responsible for modernising, maintaining and operating England’s motorways and major A roads.

Real-time traffic information for England’s motorways and major A roads is available via the Traffic England website, local and national radio travel bulletins, electronic road signs and mobile apps. Local Twitter services are also available.

For further information please contact National Highways' press office (24hrs) on 0844 693 1448 and select the most appropriate option:

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