A11 concrete surface repairs and maintenance

We'll be reconstructing sections of the road, as well as carrying out repairs and maintenance on other stretches of the A11 carriageway between Spooner Row and the Thickthorn Junction in both directions. Work will take place during 2021, 2022 and into 2023 and will be undertaken in two phases. Phase 1, A11 Tuttles Interchange to Thickthorn started in October 2021 and was completed in February 2022. Phase 2 includes the A11 Spooner Row to Tuttles Interchange and started on 29 May 2022.

Start date Phase 2 29 May 2022
End date Phase 2 June 2023
Cost Phase 2 £60 million

Project information

A11 Spooner Row to Tuttles Reconstruction Scheme, 29 May 2022 to June 2023

We'll be carrying out the reconstruction of the carriageway on the A11 between Spooner Row and the Tuttles Interchange in both directions.

Traffic management

The scheme uses a contraflow system to keep the A11 open during the reconstruction of the road. This will mean that the carriageway will be reduced to one lane in both directions as we work, whilst the speed limit will be reduced to 40mph in order to ensure the safety of our workers and the travelling public.

Image showing a cross section of the carriageway during the stage 2 contraflow

We’ve tried to keep local traffic on the A11 during the construction of the scheme, but this isn’t possible due to safety reasons. We’ve also tried to find a balance in serving through traffic on the A11, as well as the needs of local road users, but we’re aware that our roadworks will cause delays on both the A11 and on local roads during peak morning and evening times.

The maximum expected delay for traffic travelling along the A11 between Spooner Row and the Tuttles Interchange during the construction of the scheme will be an additional:

• Max delay of 14.1 mins for traffic travelling northbound on the A11 during peak times.

• Max delay of 10 mins for traffic travelling southbound on the A11 during peak times

It’s also important to note that some slip-roads will be closed for extended periods during the construction of the scheme. These are shown in the following diagram:


Image showing lane closures over different stages of the scheme

We’re encouraging through traffic to use a dispersal route, which avoids the A11 altogether, so that local roads can be kept free of A11 traffic and avoid congestion on these roads. We’re also continuing to engage with the local and wider community throughout the construction period, ensuring everyone is fully informed so they in turn can make an informed decision about their journey.

Dispersal route map

Map showing dispersal route during A11 Spooner Row to Tuttles Interchange road reconstruction

Latest updates

25 July 2022 to 30 July 2022 - each night (Mon to Sat), from 8pm through until 6am

Northbound closure of the A11 carriageway from Attleborough to Thickthorn each night, between 8pm and 6pm, to remove the existing safety barrier.


During this time, traffic wishing to travel Northbound on the A11 will be invited to travel along The A1066 before joining the A140 north, and then the A47 towards the Thickthorn Interchange. 

1 August 2022 to 4 August 2022 - each night (Mon to Thurs), from 8pm through until 6am

Vegetation clearance along the A11, which will include the closure of the B1135 on 1 and 2 August 2022.


During this time, traffic wishing to exit the A11 at the Tuttles Interchange will be invited to join the B1172 at the Thickthorn Interchange.


8 August 2022 to Autumn 2022 - each night (Mon to Fri) from 8pm through until 6am

We will be resurfacing the northbound carriageway each night.

Stage 2 construction

We are currently working on the northbound side of the carriageway (Stage 2 of the construction diagram), with a programmed completion date of November 2022 for this section of the scheme.

Why are certain slip roads closed?

We’ve had to close some of the entry and exit slip roads between Spooner Row and the Tuttles Interchange for two reasons:

  • Because we’re reconstructing the northbound side of the scheme, and so traffic isn’t able to access the slip roads during this time.
  • Because we’ve reduced the A11 to one lane in both directions. In order to encourage through traffic to flow as efficiently as possible, we need to close certain entry and exit slips within the roadworks. Cars either queuing on these slip roads, or trying to join the single lane from them, will interrupt the traffic flow, and cause through traffic to become more congested within the roadworks.
Why is there a 40mph speed limit?

The 40mph speed limit is in place for the safety of road users, and our workers. We’ve undertaken a number of safety assessments, which have shown that 40mph is the highest, safest speed limit to be used within the roadworks.

What happens when there’s a breakdown in the single lane road works?

We provide a free 24/7 recovery service within the scheme. There are 23 cameras along the length of our roadworks that allow us to quickly identify stranded vehicles. They in turn alert our recovery team, who then travel to the stranded vehicle within our works, before removing them from the single lane of traffic using one of our access gates in the temporary barrier and delivering them to a place of safety away from the scheme. 

What happens when an emergency vehicle needs to travel along the single lane road works?

We provide permission for emergency vehicles to drive within our sectioned off working areas when responding to an emergency, which allows them to quickly bypass any congestion.

Give us your feedback

Please let us know what you think by using ‘ECHO’, our A11 concrete surface repairs and maintenance feedback tool. ECHO uses an interactive map that allows you to click on a location to make a specific comment and has the option to give us your general feedback about the scheme.

ECHO is a one-way feedback tool, so if you’d like a response to your feedback you can email us at: info@nationalhighways.co.uk or call 0300 123 5000.

A11 feedback tool

We carried out repairs and maintenance on the A11 carriageway between the Tuttles Interchange and the Thickthorn Junction in both directions, between October 2021 and February 2022.


Our road repairs have extended the life of the road surface by up to 10 more years, creating a safer road that will also require less maintenance, resulting in fewer roadworks along this section of the A11.


Traffic information

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

Sign up for updates!

Keep up to date with what's happening on this scheme by signing up to our updates.