A11 Thetford to Attleborough resurfacing works

We're carrying out essential resurfacing work on the A11 between the A1075 roundabout at Thetford and the Ellingham Junction at Attleborough on the northbound and southbound carriageways. During this work, we’ll also be refreshing faded road markings, doing drainage work and replacing safety barriers, damaged signs and reflective road studs (cat's eyes).

Start date 4 January 2021
End date 28 May 2021
Cost £12 million

Latest updates

  • 04 January 2021

    Work gets under way

    By ensuring we fully restore this stretch of the A11, we'll increase the life expectancy of the road surface and make journeys safer for motorists.

    We plan to complete these works over five months, from Monday 4 January 2021 to Friday 28 May 2021, subject to weather conditions.

    The resurfacing work is split into phases, which overall will take five months in total - the phases are shown in the Overview section below.

Project information


Phase 1 (January)

Work starts on A11 lane closures between Thetford and Attleborough, in both directions, starting Monday 4 January to Monday 18 January for 2 weeks. The road will remain open during this period, but there will be lane closures.

Phase 2 (January)

There will be lane closures, with only one lane open each way, from Monday 18 January until Monday 26 January on the A11 between the A1075 roundabout at Thetford and Fen St roundabout at Attleborough in both directions.

Additionally, there will be full road closures each night from 8pm to 6am, starting from Monday 26 January until 1 February on the A11 between A1075 and Breckland Lodge (was Stag roundabout) in both directions. The road will open during the day, but with one lane open each way.

Phase 3 (February and March)

A two-way contraflow will be in place on the A11 between the A1075 Thetford roundabout and Fen Street roundabout, Attleborough for 8 weeks whilst we do our work, starting from Monday 1 February until Monday 29 March.

Phase 4 (March to May) 

Overnight closures on the A11 between A1075 roundabout at Thetford and Ellingham junction in Attleborough in both directions for 9 weeks. The road will be closed overnight daily from 8pm – 6am, starting from Monday 29 March until Friday 28 May.

We will be doing extensive resurfacing work on this stretch of road so that motorists and the community can enjoy a better road surface, and so that we can make efficiencies by doing all the resurfacing work in one go. That way, we won’t have to close the road again for resurfacing repairs for a number of years.

The diversion route will need to be used during the full road closures only. We have closely liaised with the local authority to agree the most suitable diversion routes for each phase as shown below:

Southbound traffic will be diverted from Thickthorn Junction via the A47/Norwich Southern Bypass and follow the A140, then the A1066, before re-joining the A11 at Thetford. 

Northbound traffic will follow the same route but in reverse.


Traffic information

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

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