Theâ€Żstatutory consultationâ€Żon our proposal to upgrade the A47/A11 Thickthorn junction has now closed.
We have been reviewing and considering the feedback you've provided through the consultation. Where appropriate, we are using the feedback to make further refinements to our proposed design and development of mitigation measures.
Whilst further design refinements may continue during our conversations with key stakeholders and as further survey results become available, we have issued a project update and a refined junction design.
We will be undertaking important surveys and archaeological trial trenching from this summer (2020). You can expect to see survey vehicles and equipment in operation close to Thickthorn junction, but please note that this is not the start of any construction work.
The investigations will help us better understand any local archaeology and give us information on how we may need to adjust the junction layouts. The surveys are critical for ensuring that we limit any possible impacts by fully recording all archaeological sites. The results of the surveys will be reported in our Environmental Statement and are a normal part of the development consent process.
This type of early survey work will help us to avoid any unexpected surprises and unnecessary delays once construction starts. It also means we can develop a plan for mitigation work and construction to coincide on site once the project is given the go-ahead.
We expect to submit our application for development consent early next year (2021). The application will include a consultation report which will feature a summary of responses and will describe which suggestions we were able to incorporate. This will demonstrate how we have listened to feedback.
Our application for development consent will be available to the public on the Planning Inspectorateâ€™s website after its submission.
Please watch our video for more information on the Development Consent process.
|March to April 2017||Non-statutory public consultation|
|August 2017||Preferred route announcement|
|June 2019 to July 2019||Statutory public consultation|
|2021||Development Consent Order application submitted to the Planning Inspectorate. You'll have further opportunity to comment on the scheme at this stage|
|2024-5||Open for traffic|
Why we need this scheme
The A47/A11 Thickthorn junction is important for commuter, business and commercial traffic, on both short and long-distance journeys.
Planning permission granted for new developments in Cringleford and Hethersett is expected to increase traffic demand at Thickthorn junction and the A11/Round House Way junction significantly by 2026. Without the scheme, traffic is expected to exceed the junctionâ€™s capacity at both locations. Increased congestion in the future is likely to limit economic growth in Norwich and South Norfolk and affect motorists.
The aims and objectives of the A47/A11 Thickthorn junction scheme are to:
- increase economic growth in Norwich and the surrounding area
- improve road safety for motorists and for those living near the junction
- reduce congestion, make journey times more reliable, and increase capacity for future traffic growth
- help the road cope better if there are vehicle collisions or breakdowns, and during road maintenance
- help support regional housing growth
- help protect the environment by minimising adverse impacts and, where possible, deliver benefits
- improve local communities access to the road network
- provide a safer route between communities for cyclists, walkers, horse riders and other non-motorist groups
The scheme in detail
Our revised layout that we intend to submit for planning approval includes:
- a single-lane free-flowing link road connecting the A11 northbound to A47 eastbound via two underpasses (under the A11 and A47 respectively)
- improvements to the junction:
- widening the existing slip road on the A47 westbound and building a dedicated left-hand free flow lane to the A11 southbound.
- widening the southern section of the roundabout from three lanes to four
- new traffic lights on the approach to / from the junction with the B1172 Norwich Road
- new road surface, new road signs and road markings throughout the junction
- removal of the Cantley Lane South direct connections between the A11 and A47 exit slip roads
- a new link road connecting Cantley Lane South with the B1172 Norwich Road to the north and construction of two new bridges. The new link road will have a 40mph speed limit
- from the Thickthorn junction to Hethersett, a 40mph speed limit on the B1172 Norwich Road and a new junction connecting to Cantley Lane Link road.
- a 30mph speed limit on Cantley Lane South
- a new junction connecting Cantley Lane South to Cantley Lane link road
- the existing Cantley Lane stream and access track will be realigned and one new stream culvert constructed
- a new footbridge over the A47 for walkers, cyclists and horse riders approximately 45m east of the existing footbridge (which will be demolished). The footbridge will have higher railings to help improve safety for horse riders
- paths for walking and cycling proposed along the new Cantley Lane link road giving access to local amenities and links to other recreational routes
- access to the Park and Ride from the Cantley Lane link road for walkers and cyclists
If your property may be affected by one of our schemes
Sometimes the development of one of our road improvement schemes creates an impact on the properties of people living along or close to the route of the scheme. There are a number of examples where this may be the case â€“ for instance, the sale value of a property may be adversely affected by the change in the environment around it. This could be because of additional noise from a new road, or a significant change in view from the property.
There are a number of documents that explain your rights in circumstances such as these, and set out examples in which you may be entitled to compensation:
Project media files and documents
Statutory Consultation Response Form (2019)
Preliminary Environmental Information Report - Part 1 - Pages 1 - 69
Preliminary Environmental Information Report - Part 2 - Pages 70 - 140
Preliminary Environmental Information Report - Part 3 - Pages 141 - 148
Preliminary Environmental Information Report Non-Technical Summary
Preliminary Environmental Information Report - Proposed Scheme Plan
Section 47 Notice
Section 48 Notice
Side Road Strategy Options Report - Part 1
Side Road Strategy Options Report - Part 2 (Appendix A)
Side Road Strategy Options Report - Part 3 (Appendix B,C,D)
Side Road Strategy Options Report - Part 4 (Appendix E,F)
Statement of Community Consultation (SoCC)
Roadworks and Events for England
The latest incident information for England's motorway and trunk routes provided by Highways England
Breaking News: Traffic Information
The latest current breaking news items for England's motorway network