A12 junction 25 Marks Tey to junction 26 Stanway - concrete roads reconstruction

We're rebuilding the A12 between junction 25 Marks Tey and junction 26 Stanway. This will improve the safety, create a smoother quieter journey and extend the life of the road to make it fit for the future.

Start date Late summer 2022
End date TBC
Cost TBC

Latest updates

  • 27 July 2022

    We'll be starting our work to reconstruct the road on Tuesday 30 August and expect to finish by late 2023/early 2024, subject to weather conditions.

    While the work is taking place we will be introducing a ‘contraflow’ system to keep everyone safe and the road open. This means that full road closures will only be required when we set up and take down our traffic management. By working under contraflow we’ll be able to maintain two lanes of traffic in each direction for the majority of the construction period.

    We'll be carrying out the work in the following phases:

    Phase one will start at junction 25 eastbound and head up to junction 26

    working in lanes one and two, with traffic in a contraflow.

    Phase two Junction 25 eastbound heading up to junction 26 working in lanes two and three with traffic in a contraflow.

    Phase three Junction 26 westbound heading to junction 25 working in lanes one and two with traffic in a contraflow.

    Phase four Junction 26 westbound heading to junction 25 working in lanes two and three

    We’ll advise you of any changes to our programme. Due to the
    nature of the work, some noise and light disturbance is expected, but we’ll be working to keep this to a minimum.

    Find Out More

    Ahead of the start of our works you can find out more about the scheme and meet the team. We’ll be at the following locations to hear your views and answer any questions:

    Friday 5 August 1pm-5pm, Stanway Parish Hall.

    Saturday 13 August 1pm-5pm, Marks Tey Family Fun Day, Marks Tey Parish Hall.

    We’ll also be holding two online events on Thursday 18 August. Links to these two meetings can be found alongside the timings below.

    12.30pm - 1.30pm https://tinyurl.com/yn5athvr

    6pm - 7pm https://tinyurl.com/448esz8k

  • 21 April 2022

    Survey work completed

    All survey work has now been completed. Thank you for your patience.

Project information


We'll be reconstructing the A12 between Marks Tey and Stanway (between junctions 25 and 26) with work starting on 30 August 2022. Reconstruction will involve completely removing the concrete road surface and some of the foundations, before rebuilding the road and resurfacing it with asphalt.

The East region has the highest concentration of concrete roads on our road network, including the A14, A12, A120 and M11.

Around half of the old-style concrete roads will either have repairs or will be replaced during the next five years.

We’ll be using new ways of working and new technology to provide a modern road that will last for decades to come. This will also make it easier and quicker for us to carry out repairs in the future.

To find out more about our nationwide Concrete Roads work please visit our A12 concrete surface repairs and maintenance page

Why we need the scheme

The surface of concrete roads that were designed between the 1950s and 1970s have an average life span of 50 years. Their surfaces are now reaching the stage where they will need to be repaired or replaced for safety reasons, and to help them be less noisy and better to drive on.

In late 2020, we made repairs to the A12 road surface between junction 22 and junction 24 in both directions. During early 2021, we resurfaced the A12 southbound main carriageway between junctions 27 to 26 and also repaired the road surface at the slip roads at junction 27. And in late 2021, we completed repairs to the A12 between junctions 15 and 19, and there is more resurfacing and other maintenance work scheduled for during 2022 on other stretches of this road.

When complete, the scheme will:

  • improve safety and provide a smoother rider for road users
  • reduce noise levels
  • create a new modern road with a 40 to 50-year lifespan that’ll be easier and quicker for us to repair in future


Traffic information

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

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