A556 Knutsford to Bowdon

Improving the A556 trunk road between Knutsford and Bowdon by creating a modern dual carriageway road. The existing A556 will become a single carriageway road with facilities for pedestrians, cyclists and horse riders.

Start date November 2014
End date March 2017
Cost £191.9 million

Latest updates

  • 06 March 2017

    Scheme opens to traffic

    On Monday 6 March 2017 we opened the new A556 to traffic.

Project information


The A556 is a major trunk road between north Cheshire and south Manchester. The section that we are improving is between the M6 junction 19 near Tabley/Knutsford and the M56 junction 7 near Bowdon. To the northern end of the A556 are the communities of Altrincham, Bowdon and Hale.

To the west of the existing road, a new dual carriageway will bypass the communites of Tabley, Mere and Bucklow Hill before rejoining the existing route of the A556 at a point near to Bucklow Manor. We are also making improvements to junction 7 of the M56.

The A556 carries approximately 51,500 vehicles daily, around 11% of which are lorries. The section of the A556 between the M56 junction 7 and the M6 junction 19 is 4 miles (6.5km) long and is currently mainly a single 4 lane carriageway, with sections of dual 2 lane carriageway.

Numerous properties and field entrances have direct access onto the A556. As well as the 2 motorway junctions, there are also 2 other major junctions that connect local roads to the A556. These are the Bucklow Hill junction, and Mere junction. Both junctions are controlled by traffic lights and have restricted turning movements.

All of this means traffic is often severely congested at junctions along the A556, particularly at peak times, during roadworks and following incidents such as collisions.

Most seriously, there were 98 personal injury accidents on the A556 (including relevant parts of its junctions with the M6, A50, A5034 and M56) in the period January 2007 to December 2011, including 1 fatality and 13 serious injuries.

The objectives for the scheme are to:

  • improve road safety and journey time reliability
  • improve the local environment in Bucklow Hill and Mere
  • reduce conflicts between long distance and local traffic
  • minimise the environmental impacts of the scheme, during construction and once open to traffic


Traffic information

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

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