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A3 Hindhead Tunnel - Planned Closures:

A3 Hindhead Tunnel Improvements to technology:

UPDATE: A3 Hindhead Tunnel Improvements to Technology - Planned Closures

As part of the ongoing work to upgrade the technology within the Hindhead Tunnel, the Tunnel will be closing (in both directions) overnight (between 9pm and 6am) on the following dates:

  • Saturday 5 December 2020 and Sunday 6 December 2020 north and southbound tunnel
  • Saturday 12 December 2020 and Sunday 13 December 2020 north and southbound tunnel

During the closures northbound traffic will be diverted via the A325 (from Longmoor), B3004 (Kingsley to Alton) and A31 (towards Guildford). Southbound traffic will be diverted along the A31 (to Alton), B3004 (Alton to Kingsley), A325 (to Longmoor).

Please note that the works may be subject to change due to weather conditions or unforeseen circumstances. Advertised closure on yellow signs will be placed in advance alongside the road.

Highways England apologise in advance for any inconvenience or disruption you may experience during these closures.

If you have any questions, or if you would like to know about our work, please contact us on 0300 123 5000 or email Or you can visit our website at where you can find a weekly report of all full closures across the network.

Please allow extra time for your journey.