A12 concrete surface repairs and maintenance

We'll be carrying out repairs and maintenance on stretches of concrete surface on the A12. The work will include repair to the concrete road main carriageway, clearing drains, repainting road markings and new reflective studs (cat's eyes).

Project information

A12 junction 15 Webb Farm Interchange to junction 19 Boreham Interchange surface repairs and maintenance, 2021

Construction started 19 July 2021.

Completion expected early 2022, subject to weather conditions.

Estimated cost £15 million

We are carrying out repairs to the existing north and south bound concrete road surface along the A12 from junction 15 Webb Farm Interchange to junction 19 Boreham Interchange. The work includes repairs to the concrete road surface, repainting white lining and replacing road studs (cat’s eyes.) Once complete, there will be a smoother and safer road surface.

Whilst the road is closed, alongside the road surface repairs we'll also take the opportunity to do routine maintenance jobs, such as tidying the verges, emptying the drains, road sweeping and checking and tightening the central reservation safety barriers.

Work started on Monday 19 July 2021 and will be completed early 2022. To do the repairs, we will need overnight road closures on weekday nights, with a signed diversion route in place. 

As our concrete road surface repairs to the southbound carriageway are progressing well, we will now be moving to the northbound carriageway to continue our repairs. This work will now be done in October 2021 instead of November 2021.

Read our latest newsletter for an update on our progress.

Road closures

A12 Road Closures

  • Northbound from 18 October 2021 until December 2021: 9pm until 5am on Mondays to Thursdays and 9.30pm on Fridays until 6am on Saturdays. 

Note: The main carriageway is closed from 9pm. For the safety of the public and our workforce we will need to close the slip roads that join the A12 from 8pm before we close the main carriageway. We monitor the traffic flow and may close the A12 at 8pm to start our work earlier if there are low levels of traffic using the road. This will help us complete our road repairs more quickly. 

Weekend overnight slip road closures

We will be carrying out further work on the A12 southbound slip roads from Saturday 20 November until Monday 22 November 2021. Drivers are asked to follow signed diversion routes. See details below,

Southbound Slip Road closures

  • Junction 18 entry slip road and junction 17 exit and entry slips roads will be closed on Saturday 20 November from 8pm until 6am on Sunday 21 November 2021.
  • Junction 17 entry slip road and junction 16 exit and entry slip roads will be closed on Sunday 21 November from 8pm until 6am on Monday 22 November 2021.

 

Slip Road Diversion Route

  • On Saturday 20 November to Sunday 21 November 2021: Drivers wanting to go southbound (towards London) from junctions 18 or 17 will be diverted onto the A12 northbound to junction 19 to join the A12 southbound. Vehicles wishing to exit at Junction 17 will be directed to junction 16.

 

  • On Sunday 21 November from 8pm until 6am on Monday 22 November 2021: Drivers wanting to go southbound (towards London) from junctions 17 or 16 will be diverted onto the A12 northbound to junction 18 to join the A12 southbound. Vehicles wishing to exit at Junction 16 will be directed to junction 15.

Northbound Diversion Route

Drivers heading north should leave the A12 at junction 15 and join the A414.

Follow the A414 and then join the A1016 (Westway).

Follow the A1016 and then join the A130 to re-join the A12 at J19 Boreham Interchange. A signed diversion route will be in place.

A12 diversion route

Construction expected to start late 2022

Currently in design – cost estimate to be finalised

In 2022, we will be reconstructing the A12 carriageway between junction 13 Ingatestone and junction 15 Margaretting to replace the concrete road with a flexible asphalt lower-noise road surface.

Southbound lane closure for geotechnical surveys

We'll need to close a single lane closure of the southbound carriageway of the A12 between Junction 13 (Ingatestone) and Junction 15 (Margaretting) from 8pm on Wednesday 3 November, through until 6am on Thursday 4 November.

The lane closure will allow us to complete a geotechnical survey as part of our preparations for the A12 Junction 13 Ingatestone to Junction 15 Margaretting concrete road reconstruction scheme. The survey is to examine the road foundations, and won’t cause any noise disturbance for residents who live near this location.

Benefits

We’ll be reconstructing the A12 between junctions 13 and 15 in autumn 2022. The reconstruction will involve completely removing the road surface and some of the road’s foundations, before then rebuilding it with asphalt for a smoother and safer ride.

Once complete, we expect the life of the road surface to be extended by up to 50 more years, with fewer future closures for maintenance repairs, meaning more reliable journeys for road users. The new lower-noise road surface will also reduce noise pollution for local residents who live near to this part of the A12.

As well as reconstructing the carriageway, we will also install new drains, replace safety barriers, repaint road markings, and insert new reflective road studs (cat’s eyes).

Construction expected to start Spring 2022

Currently in design – cost estimate to be finalised

Starting in early 2022, we will be reconstructing the A12 carriageway between Marks Tey Interchange (junction 25) and Stanway (junction 26) to replace the concrete road with a flexible asphalt lower-noise road surface. Work includes renewing surface water drainage, replacing barriers and replacing old or damage signs.

Noise Survey monitoring

We need to monitor noise levels for upcoming work on the A12 to ensure we are not creating any excessive noise levels during our construction work. The surveys are non-intrusive, and will take place week commencing 13 September. Monitors will be in place for at least 24 hours to collect the required data.

Survey work on the A12, junctions 25 to 26

Prior to work starting next year on reconstructing this stretch of the A12 carriageway, we need to carry out some survey work on road. For the safety of our workers and motorists we will be using lane closures. 

Starting from 20 September 2021, there will be overnight lane closures from 8pm until 6am each Monday to Friday. We expect this survey work to have minimal impact on residents or motorists.

Please do follow the road signs and speed restrictions for your own safety and the safety of our workforce. 

Started February 2021

Completed March 2021

Cost £1.2 million

From Wednesday 17 February 2021, we made repairs to the concrete surface on the A12 at junction 27 Spring Lane. 

The work took around four weeks, and we also cleared drains, repainted road markings, and inserted new reflective road studs (cat’s eyes). At the same time, we resurfaced the A12 southbound carriageway between junction 27 and 26. You can read about this project in our March A12 newsletter

 

Started November 2020

Completed December 2020

Cost £3.2 million

During November and December 2020, we resurfaced and repaired potholes and cracks in the concrete road surface on the A12 main carriageway between junction 22 and junction 24 in both the northbound and southbound directions. You can read about the work we did in our two newsletters:

We changed our initial approach to take advantage of the reduced traffic as a result of Covid 19 lockdown restrictions. We were able to complete the work earlier to avoid disruption in December, supporting people with Christmas shopping and other journeys, and to help fuel the economy. 

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