Hindhead Tunnel

The Hindhead Tunnel in Surrey is just under two kilometres long and is one of the longest road tunnels in the UK. It takes the A3 beneath the Devil's Punch Bowl, a Site of Special Scientific Interest.

Start date Ongoing
End date Ongoing
Cost

Latest updates

  • 17 November 2023

    Weeknight closures for lighting upgrades - November 2023 - March 2024

    We’re working to replace some of the lighting in both bores of the Hindhead Tunnel to improve safety and visibility. Work is due to start on weeknights from Wednesday 15 November till March 2024. We’ll only need to close one entrance to the tunnel at a time and use a contraflow system, so you’ll still be able to travel through. We apologise for any inconvenience caused during our safety upgrades.


    Closure information

    The northbound side of Hindhead tunnel will be closed overnight between 9pm and 6am:
    · Monday 20 to Wednesday 22 November 2023 - 3 weeknights
    · Monday 11 to Monday 18 December 2023 - 6 weeknights
    · Monday 2 to Friday 19 January 2024 - 14 weeknights
    All dates are inclusive. A contraflow using the southbound side of the tunnel and a 40mph speed limit will be in place.


    The southbound side of Hindhead tunnel will be closed overnight between 9pm and 6am:
    · Wednesday 15 to Friday 17 November 2023 - 3 weeknights
    · Wednesday 29 November to Friday 8 December 2023 - 8 weeknights
    · Monday 22 to Friday 26 January 2024 - 5 weeknights
    · Tuesday 30 January – Friday 2 February - 7 weeknights

    All dates are inclusive. A contraflow using the northbound side of the tunnel and a 40mph speed limit will be in place.

  • 24 October 2023

    Speed restrictions and weeknight tunnel closures 

    We’re continuing to carry out repairs to our advance fixed-text message signs system on the approaches to the London-bound carriageway. 

    There will be a 40mph speed restriction on the approach to the tunnel to keep traffic at a safe speed should we need to close the road. These signs and restrictions will be removed as soon as these works have been completed.  

    Tunnel closures

    We’re also about to replace some of the lighting in both bores of the Hindhead Tunnel to improve safety and visibility. Work is due to start on weeknights from Monday 30 October and is expected to last nine weeks. 

    Please note: our planned shift on Tuesday 31 October has been cancelled. 

    We’ll only need to close one entrance to the tunnel at a time and use a contraflow system, so you’ll still be able to travel through. 

    We apologise for any inconvenience caused during our safety upgrades.  

  • 29 August 2023

    September maintenance – full closures

    We’re carrying out essential maintenance and testing some of the technology we use to keep drivers safe when travelling through the Hindhead tunnel.

    This means we’ll need close the road in both directions at night to do this work.

    Closure information

    The Hindhead tunnel will be fully closed on weeknights (9pm to 6am) from Monday 4 to Friday 15 September 2023.

    Diversion information

    A fully signed diversion will be in place in both directions via A325 and A31.

    Click here to view diversion map

    Thank you for your patience while we carry out these important safety checks.

  • 26 June 2023

    Full tunnel closure

    We're carrying out some maintenance in the Hindhead tunnel on the A3 over the next couple of weeks.

    Closure information

    The tunnel will be closed in both directions on weeknights (9pm to 6am) from Monday 26 June to the morning of Saturday 8 July 2023.

    Diversion information

    A fully signed diversion will be in place in both directions using A325, B3004 and A31.

    Click here to view diversion map

  • 16 June 2023

    Night work in Hindhead tunnel from Monday 19 June

    The northbound side of Hindhead tunnel will be closed overnight between 9pm and 6am for five nights from Monday 19 June.

    A contraflow using the southbound side of the tunnel and a 40mph speed limit will be in place.

    Update: planned closures due to take place on Wednesday 21, Thursday 22 and Friday 23 June have been cancelled.

    Please check back for further updates. 

See more updates

Project information

Overview

We carry out regular maintenance of the tunnel to keep it safe and working properly. When we do maintenance we try to avoid fully closing the tunnel and use a contraflow system instead.

The Hindhead Tunnel contains a range of technology. One of the latest additions are the ‘Swift Gates’ which were added in 2022.

Documents

M25 junction 10

Traffic information

Information about scheduled roadworks and events on our motorways and major roads.

Contact us

0300 123 5000

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