The work will involve overnight closures of one tunnel at a time, with the other tunnel remaining open and a contraflow system in place so traffic can continue in both directions. It is due to be completed at the beginning of June.
Highways Agency Project Manager Anne-Marie Palmer said:
Maintenance of any infrastructure is required over time and following the improvements to the supply of electricity to the tunnel, we are now taking the opportunity to carry out maintenance of the jet fans.
We have planned the work to allow one tunnel to remain open so that one lane will be open to traffic in each direction. It will be carried out overnight, when traffic flows are lowest, to minimise disruption.
Work will take place overnight, between 10pm and 6am, on the following dates:
- Tuesday 6 to Friday 9 May
- Monday 12 to Friday 16 May
- Monday 19 to Thursday 22 May
- Tuesday 27 to Friday 30 May
- Monday 2 to Friday 6 June
During the closures one tunnel will be closed and road users will be able to continue their journeys using the other tunnel in a contraflow with a temporary 40mph speed limit.
The Highways Agency manages 11 tunnels on the strategic road network in England and all of these require maintenance to ensure that road users remain safe. The Hindhead Tunnel is the newest tunnel on the road network and, since opening, it has brought benefits to drivers, the economy and the environment.
Routine maintenance of the Hindhead tunnel has been planned for the following dates in 2014:
- Monday 28 April to Thursday 1 May: northbound bore closed
- Monday 2 to 5 June: southbound bore closed
- Monday 14 to Thursday 17 July: northbound bore closed
- Tuesday 26 to Friday 29 August: southbound bore closed
- Monday 6 to Thursday 9 October: northbound bore closed
- Monday 17 to Thursday 20 November: southbound bore closed
Traffic will use the opposite bore in a contraflow with a 40mph speed limit.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer