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.
Latest updates
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02 August 2024
August full closures and new lighting upgrade dates
The tunnel will be fully closed for two nights (9pm to 6am) on Monday 12 and Tuesday 13 August.
Diversion information
A fully signed diversion will be in place in both directions via the A325 and A31.The lighting upgrade work also continues which means either the southbound or the northbound bore will be closed at night on the following dates:
- Thursday 1 and Friday 2 August – (2 nights) Southbound closure
- Wednesday 7, Thursday 8 and Friday 9 August – (3 nights) Southbound closure
- Monday 12 and Tuesday 13 August – (2 nights) - this is a full tunnel closure.
- Wednesday 14, Thursday 15 and Friday 16 August – (3 nights) Southbound closure
- Monday 19, Tuesday 20, Wednesday 21 and Thursday 22 August (4 nights) Northbound closure - using the planned maintenance closures
- Tuesday 27, Wednesday 28, Thursday 29 and Friday 30 August (4 nights) Southbound closure
- Monday 16 to Friday 27 September – (10 weekday nights) Southbound closure
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30 May 2024
Work continues on lighting upgrade
We’ll shortly be continuing our works to upgrade the lighting within the Hindhead tunnel.
To undertake these works safely there will be directional overnight closures to the north and southbound bores, with contraflow in place through the tunnel. Overnight closures will be in place between 9pm to 6am.
Northbound bore closures:
- Tuesday 4 June for three nights
- Friday 7 June for one night
- Monday 10 June for one night
- Wednesday 12 June for three nights
- Tuesday 18 June for one night
- Friday 21 June for one night
- Monday 24 June for two nights
- Monday 1 July for five nights
- Monday 8 July for five nights
Southbound bore closures:
- Tuesday 16 July for three nights
- Friday 19 July for one night
- Monday 22 July for five nights
- Monday 29 July for five nights
Diversion routes
When the northbound tunnel closed, the northbound entry slip road at Hazel Grove Interchange will also be closed, drivers will be diverted onto the southbound carriageway to turn around at Liphook junction to rejoin the northbound carriageway.
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11 March 2024
March maintenance – full closures
We’re carrying out activities such as essential maintenance and testing some of the technology we use to keep drivers safe when travelling through the Hindhead tunnel.
We’ll need close the road in both directions to do this work. To minimise disruption, we’ll work on weeknights only when there are fewer vehicles on the road. During the day we will keep the tunnel open as usual. We apologise in advance for any inconvenience caused during this essential work.
Closure information
The Hindhead tunnel will be fully closed for 3 weeknights (9pm to 6am) from Monday 18 to morning of Thursday 21 March 2024.Diversion information
A fully signed diversion will be in place in both directions via A325 and A31.Thank you for your patience while we carry out this important work.
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15 January 2024
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 southbound side of Hindhead tunnel will be closed overnight between 9pm and 6am:
- Tuesday 23 to Friday 26 January 2024 - 4 weeknights
- Tuesday 30 January to Friday 9 February - 9 weeknightsAll dates are inclusive. A contraflow using the northbound side of the tunnel and a 40mph speed limit will be in place.
The northbound side of Hindhead tunnel will be closed overnight between 9pm and 6am:
- Monday 12 February to Friday 1 March - 15 weeknightsAll dates are inclusive. A contraflow using the southbound side of the tunnel and a 40mph speed limit will be in place.
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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.
Project information
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
Related Road projects
Traffic information
Information about scheduled roadworks and events on our motorways and major roads.X
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