Skip to main content

New UK bypass to ease roundabout congestion?

A €61.13 million (£50 million) bypass could be created on the edge of a city in east England to ease the pressure on a heavily used roundabout. The radical proposals have been drawn up as council bosses look to find a long-term solution for the Thickthorn roundabout, near Norwich, reportedly described by one leading figure as “one of the most important roundabouts in the county [Norfolk]”.
February 17, 2014 Read time: 3 mins
A €61.13 million (£50 million) bypass could be created on the edge of a city in east England to ease the pressure on a heavily used roundabout.

The radical proposals have been drawn up as council bosses look to find a long-term solution for the Thickthorn roundabout, near Norwich, reportedly described by one leading figure as “one of the most important roundabouts in the county [Norfolk]”.

That roundabout is already one of the Norfolk’s busiest and will come under even more pressure when the thousands of homes earmarked for Norfolk over the next two decades are built.

To plan for that, Norfolk County Council asked consultants Mott McDonald to look into possible solutions.

They came up with a number of schemes, but the one they identified as the best solution is for a multi-million euro project which would see a new tunnel created under the A11 and a new bridge over the A47 southern bypass.

A new slip road would come off the Norwich-bound A11 approaching the roundabout and go under the A11, before sweeping over the bridge over the southern bypass and joining up with the Round House roundabout near Cringleford.

Traffic heading out of Norwich would have the option of coming off the Round House roundabout, crossing the A47 over the new bridge and joining the A11 beyond Thickthorn roundabout.

The council acknowledges it will have to convince the government to get the money for the scheme, but is ready to spend €978,100-€1.22 million for a further two-year feasibility study into the bypass and other options.

David Harrison, cabinet member for environment, transport and waste at Norfolk County Council, said, “The county council recognises the crucial importance of the Thickthorn junction and is keen to see improvements in capacity made, given the growth agenda for Norwich in the years ahead.

“We have therefore commissioned further work by 2579 Mott MacDonald to underline the importance the county council attaches to the junction to support further dialogue with the 2309 Highways Agency.

“At a time when funding is at a premium, we will keep up the pressure to ensure Norfolk receives its fair share of funding to allow our economy to grow in a managed way.”

Chris Starkie, New Anglia LEP managing director, said the predicted growth in and around Norwich, and the expansion plans for Norwich Research Park, meant the junction would have to be improved.

He said, “Thickthorn junction is probably one of the most important roundabouts in Norfolk. It is the gateway to Norwich and the link between the A11 and the A47.

“Norfolk County Council, working with us, will be pushing the Highways Agency to fund necessary improvements as a matter of urgency.”

The Highways Agency, which has responsibility for maintaining the roundabout, confirmed it was talking to the county council about a long-term solution.

But the agency did reveal resurfacing work and improvements to the existing roundabout and its roads is due to start next month.

A spokeswoman said, “We are committed to safe and reliable journeys for road users. Work to improve the Thickthorn roundabout on the A11 by resurfacing it, and replacing all road markings and road studs is currently planned to be carried out next month.

“We will also make some changes to improve lane discipline around the junction. Details will be publicised in advance.”

For more information on companies in this article

Related Content

  • RAC blasts UK Government's poor infrastructure investment
    May 14, 2012
    The UK’s motorists are facing increased congestion and longer delays due to a steady increase in vehicle numbers combined with reduced spending on transport infrastructure. A report by the RAC Foundation warns that there will be 4,000,000 more cars on the UK’s roads in the next 25 years, while the UK’s Government has not explained what plans it has to cope with the projected increase in traffic. The report predicts a 43% rise in traffic volume by 2035, with the biggest increase in the East Midlands. The fou
  • Positive finding for tunnel solution in Malta
    May 2, 2012
    A preliminary study on the proposed tunnel connecting the islands of Malta and Gozo has been carried out by Mott Macdonald. Mott Macdonald’s preliminary analysis of the Malta-Gozo undersea road link suggests that it would take 5-7 years to build a tunnel between the two islands. This report suggests a cost of €156-€492 million for a single bore three-lane tunnel on the shortest practical alignment route. Potentially, the project could be co-financed by the EU under the Cohesion Fund if a road tunnel link be
  • New international trade crossing linking Canada and US
    June 9, 2015
    The Detroit River is short, only 45km, and narrow in places, less than 1km. Around a quarter of the annual $658 billion Canada-US trade crosses over the river. That’s $160 billion worth of goods trucked each year between Detroit in the US state of Michigan and the Canadian city of Windsor in the province of Ontario - the Windsor-Detroit Corridor. There are several types of crossings, but the vast majority of commercial traffic must use the 2.3km Ambassador Bridge (see box). A new bridge was initially prop
  • UK road contracts planned
    December 13, 2021
    Major road contracts are planned for the UK.