Skip to main content

Widening for key section of UK’s A11 route complete

Contractor Balfour Beatty has completed the €132.4 million (£105 million) upgrade of the last remaining single carriageway section of the A11. This section of the route runs between Barton Mills in Suffolk and Thetford in Norfolk. The work involved dualling nearly 15km of carriageway on behalf of the Highways Agency.
December 12, 2014 Read time: 2 mins
New A11 looking north, with the Elveden Memorial in the distance

Contractor 1146 Balfour Beatty has completed the €132.4 million (£105 million) upgrade of the last remaining single carriageway section of the A11. This section of the route runs between Barton Mills in Suffolk and Thetford in Norfolk. The work involved dualling nearly 15km of carriageway on behalf of the 2309 Highways Agency.

Main construction on the project started in January 2013 and the completed dual carriageway was officially opened by the Secretary of State for Transport, Patrick McLoughlin MP, at a ceremony attended by local stakeholders.

The scheme involved the widening of the strategic route linking Suffolk with Norfolk to dual two-lane standard along its length and included the construction of a 5.8km bypass to the north of Elveden village in Suffolk. It has also involved the construction of six major new bridge structures, forming either underpasses or overbridges.

330,000tonnes of earth were moved during the project, which also involved laying around 140,000tonnes of asphalt, lifting 1,500 tonnes of bridge steel work and pouring 4000 tonnes of concrete. Over 32km of drainage pipes and 50,000m3 of earth were replaced with gravel to take water away from the carriageway.

The scheme achieved 20% savings over its original projected cost as a result of nearly €25.2 million (£20 million) of savings by Balfour Beatty, including the avoidance of national grid and gas infrastructure diversions and the retention of more of the original A11 than originally anticipated. Some landscaping work will continue in the New Year and is due to be completed by the end of March 2015.

For more information on companies in this article

Related Content

  • New UK bypass to ease roundabout congestion?
    February 17, 2014
    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]”.
  • IRF Global Road Achievement Awards (GRAA) Winning Project: Morava Corridor Motorway
    April 29, 2025

     

    Bechtel and ENKA each boast rich histories, and together, possess nearly 200 years of combined experience—an impressive feat in today’s competitive landscape. For 35 years, the joint venture has tackled some of the industry’s most challenging motorway projects. The Morava Corridor Motorway Project’s program management exemplifies a commitment to excellence, representing a complex endeavor that few can undertake.  

  • Causeway and immersed road for LagoonHull
    December 1, 2021
    The agency proposing the UK’s LagoonHull project says it’s development and construction costs could be between €1.2-2.4 billion.
  • Balfour works nights on Scotland’s Perth Transport Futures project
    July 31, 2017
    The Perth Transport Futures project has reached a milestone with the placing of steel beams to support the road bridge on Scotland’s A9 dual carriageway.