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 End July 2021
Cost £15 million

Latest updates

  • 15 July 2021

    July update and closures

    A recent survey of the road has identified some additional work which needs to be done. During this work, we will be replacing a lamp post and some additional drainage work.

    To do the work, we will need to close the A11 or have reduced traffic lanes between A1075 roundabout at Thetford to Snetterton junction on the following dates:

    • Wednesday 21 July overnight from 8pm to 6am (full road closure, northbound only)
    • Thursday 22 July overnight from 8pm to 6am (lane closure on northbound only)
    • Friday 23 July overnight from 8pm to 6am (lane closure on northbound only)

    Diversion routes will be required during the full road closure on Wednesday 21 July only. Please use the official diversion routes.

  • 09 June 2021

    Update on overnight closures

    To complete these essential resurfacing works, we’re planning overnight (8pm to 6am) closures on the A11:

    • Snetterton junction to Attleborough between now and Saturday 12 June inclusive.
    • A1075 roundabout at Thetford to Snetterton junction from Monday 14 June to Friday 25 June inclusive.

  • 25 May 2021

    Overnight and weekend closures

    To carry out essential resurfacing works, we’re closing the A11 from the Snetterton junction to Attleborough, overnight (8pm to 6am) from Thursday 6 May to Wednesday 16 June, excluding bank holidays.

    There will also be a weekend closure of Breckland Lodge (Stag) roundabout, starting Friday 21 May to Monday 24 May.

  • 12 March 2021

    Overnight road closures

    We’re having to make some overnight road closures to install new signs specified by Natural England within the Site of Special Scientific Interest to the south of Larling Junction on the A11.

    The signs need to be put in before the breeding season for rare species of birds, including stone curlews that are native to this part of the region.

    These night-time road closures will be from 8pm – 6am on Thursday 11 March until Sunday 14 March, and the contraflow roadworks will remain in place until Saturday 20 March.

  • 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 late June 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

Overview

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

We plan to complete these works over five months, from Monday 4 January 2021 to late June 2021, subject to weather conditions.

The resurfacing work is split into phases, which overall will take six months in total. The phases are shown below.

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)

The northbound A11 will have one lane open to traffic overnight from 26th to 30th January, and the southbound A11 will be open to traffic overnight (one lane only) on the 31st January, both north and southbound will be running single lane only in the day time on the above dates, with contraflow commencing on 1st February.

Phase 3 (February)

A two-way contraflow will be in place on the A11 between the A1075 Thetford roundabout and Fen Street roundabout, Attleborough for 3 weeks whilst we do our work, starting from Monday 1 February until Wednesday 24 February.

There will then be two overnight road closures on A11 between the A1075 roundabout in Thetford and the Fen Street roundabout in Attleborough, from 8pm to 6am on both Wednesday 24 February and Thursday 25 February respectively.

Following that, a two-way contraflow will again be in place on the A11 between the A1075 Thetford roundabout and Fen Street roundabout, Attleborough for 2 weeks whilst we do our work, starting from Friday 26 February until Wednesday 10 March.

Phase 4 (March to June) 

Overnight closures on the A11 between A1075 roundabout at Thetford and Ellingham junction in Attleborough in both directions for 15 weeks. The road will be closed overnight daily from 8pm – 6am, starting from Monday 15 March until late June. During this time, there will also be a weekend closure of Breckland Lodge (Stag) roundabout, starting Friday 21 May to Monday 24 May.

Phase 4 diversion

Traffic will be diverted from Thetford via the A1066, joining the A140 at Scole to A47/Norwich Southern Bypass to Thickthorn junction, then south on A11 to Attleborough. This will be the same in reverse.

Phase 4 diversion for HGV’s and large vehicles 

Traffic for HGV’s and vehicles over 4.7 metres/15.6ft, will be diverted from Thetford via the A1088, joining the A143 near Ixworth and joining the A140 at Scole, to A47/Norwich Southern Bypass to Thickthorn junction, then south on A11 to Attleborough. This will be the same in reverse.

Phase 5 (June):

A11 closure Snetterton junction to Attleborough, between now and Saturday 12 June, between the hours of 8pm and 6am.

A11 closure between A1075 roundabout at Thetford to Snetterton junction, starting Monday 14 June to Friday 25 June, between the hours of 8pm and 6am, on weeknights only.

Phase 5 diversion

Southbound traffic will be diverted from Thetford via the A1066, joining the A140 at Scole to A47/Norwich Southern Bypass to Thickthorn junction, then south on A11 to Attleborough.

Phase 5 diversion for HGV’s and large vehicles

Southbound traffic for HGV’s and vehicles over 4.7 metres/15.6ft will be diverted from Thickthorn Junction via the A47/Norwich Southern Bypass and follow the A140, the A143 before joining the A14 at junction 38. 

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.

Our roadworks will be either south or north of Snetterton Industrial Site to ensure HGVs can access it. The latest road closures and locations are available on Twitter @HighwaysEAST.

We have our two diversion routes, depending on whether the roadworks are north or south of Snetterton. See the maps section below.

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. 

Southbound HGV’s and vehicles over 4.7 metres/15.6ft will be diverted from Thickthorn Junction via the A47/Norwich Southern Bypass and follow the A140, the A143, before joining the A14 at junction 38.

Northbound traffic will follow the same route but in reverse.

Diversion maps

 

 

Documents

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.

Feedback