A11 Thickthorn (Norwich) to Tuttles Lane (Wymondham) concrete surface repairs

We’ll be repairing sections of the concrete road surface on the A11 between Thickthorn Interchange (where the A11 meets the A47 below Norwich) and Tuttles Lane Interchange at Wymondham.

Start date 20 September 2024 for 11 weeks

End date

Cost £3.5 million

Latest updates

06 September 2024
Works starts on 20 September 2024

We’ll be carrying out repairs on sections of the concrete surface on the A11 between Thickthorn Interchange (where the A11 meets the A47 below Norwich) and Tuttles Lane Interchange.

We plan to start this work on Friday 20 September 2024.

Work will last approximately 11 weeks. We will be working between 8pm and 6am on weeknights only, weather permitting.

Closures and diversions

To carry out the work safely, we will need to close the A11 between Thickthorn and Tuttles Lane Interchanges in both directions.

Southbound Traffic will be diverted:
- exit the A11 at Thickthorn Interchange
- turn left onto the Norwich Southern Bypass (A47).
- at Ipswich Road Interchange, turn right onto Ipswich Road (A140)
- continue following towards Scole.
- Turn right onto Diss Road (A1066) and follow to Thetford.
- At Munford Road Roundabout, turn left to rejoin the A11 southbound.
- Northbound Traffic will follow the same diversion as above but in reverse.
19 August 2024
Work starts in September

We’ll be carrying out repairs on section of the concrete surface on the A11 between Thickthorn Interchange and Tuttles Lane Interchange.

We plan to start this work on Monday 23 September 2024 and will last approximately 11 weeks. We will work between 8pm and 6am on weeknights only, weather permitting.

Closures and diversions

To carry out the work safely, we will need to close the A11 between Thickthorn Interchange and Tuttles Lane Interchange in both directions, and divert traffic as follows:
- Southbound Traffic will exit the A11 at Thickthorn Interchange and turn left onto the Norwich Southern Bypass (A47). At Ipswich Road Interchange, turn right onto Ipswich Road (A140) and continue following towards Scole. Turn right onto Diss Road (A1066) and follow to Thetford. At Munford Road roundabout, turn left to rejoin the A11 southbound.
Northbound Traffic will follow the same diversion as above but in reverse.

See more updates

Project information

Most of our road network is surfaced with asphalt, also known as tarmac, but some roads are built of concrete. These make up around 400 miles (4%) of England’s motorway and long-distance A-road network.

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.

Around half of the old-style concrete roads will either have repairs or will be replaced over a five-year period. We’ll be using innovative techniques and new technology to provide a modern road that will last for decades to come, and which is easier and quicker for us to repair in future.

Find out more about our national concrete roads improvement programme, how we are working to improve the environment and our innovative ways of working.

These repairs aim to reduce noise levels from the A11 and extend the life of the road surface between these junctions.