A299 Thanet Way

From April to June 2023, we will be carrying out work on the A299 Thanet Way between Herne Bay and Whitstable.

This work will include the upgrade of the existing tunnel lighting system in the Chestfield Tunnel.

The existing fluorescent lamps will not be available after 25 August 2023. We will replace the lights and the lighting support system in the Chestfield Tunnel with Light Emitting Diode (LED) technology which is much more energy efficient and reduces our carbon emissions.

For the safety of our workforce and highway users there will be a contraflow system in 2 phases (eastbound and westbound) to reduce the impact to the traffic flow:

Eastbound/coastbound contraflow system

8pm on Sunday 23 April to 5am on Friday 26 May 2023.

Westbound/London-bound contraflow system

1am on Tuesday 30 May to 5am on Friday 30 June 2023.

There will be a temporary, mandatory 40mph speed restriction on the A299 Thanet Way in both directions between the Golden Hill overbridge and the Thornden Wood Road overbridge, and where indicated by signs.

Road closures

To set up, move and remove the traffic management equipment the A299 Thanet Way (Whitstable, Chestfield, Herne Bay and Herne and Broomfield) will be closed in both directions between 8pm and 5am on:

  • 21 April 2023 for 1 night

and between 8pm and 6am on:

  • 22 to 23 April 2023 for 2 nights
  • 27 May to 28 May 2023 for 2 nights
  • 30 June 2023 for 1 night
  • or as signed on site.

The alternative routes are:

  • Coast bound via the A2990 Thanet Way slip way, A2990 Thanet Way, A291 Canterbury Road and A299 Eddington on slip.
  • London bound via the A299 Eddington off slip, A291 Canterbury road, A2990 Thanet Way, A2990 Clapham Hill and A299 Whitstable on slip.

A free vehicle recovery service will be provided.

If you need additional information, let us know via our online reporting tool by selecting 'Thanet Way Tunnel LED Upgrade'.