page_title: A1 road (Great Britain)
section_title: A1(M)
hierarchical_section_title: A1 road (Great Britain) / A1(M)
caption_attribution_description: English: A1(M), Hatfield, South of junction 2 - Photographed from the junction 2 bridge looking southwards. To the left is the southbound on slip.
context_page_description: The A1 is the longest numbered road in the UK, at 410 miles. It connects London, the capital of England, with Edinburgh, the capital of Scotland. It passes through or near North London, Hatfield, Welwyn Garden City, Stevenage, Baldock, Letchworth Garden City, Huntingdon, Peterborough, Stamford, Grantham, Newark-on-Trent, Retford, Doncaster, York, Ripon, Darlington, Durham, Sunderland, Gateshead, Newcastle upon Tyne, Alnwick and Berwick-upon-Tweed.
  It was designated by the Ministry of Transport in 1921, and for much of its route it followed various branches of the historic Great North Road, the main deviation being between Boroughbridge and Darlington. The course of the A1 has changed where towns or villages have been bypassed, and where new alignments have taken a slightly different route. Several sections of the route have been upgraded to motorway standard and designated A1. Between the M25 and the A696 the road has been designated as part of the unsigned Euroroute E15 from Inverness to Algeciras.
context_section_description: Some sections of the A1 have been upgraded to motorway standard. These are known as the A1(M) and are part of European route E15. These include:
  M25 to Stotfold
  The M25 to Stotfold section is 23 miles (37 km), and was constructed between 1962 and 1986. The main destinations are Hatfield, Welwyn Garden City, Stevenage, and Letchworth. It opened in five stages: junctions 1 to 2 in 1979; 2 to 4 in 1986; 4 to 6 in 1973; 6 to 8 in 1962; and 8 to 10 in 1967.
  Alconbury to Peterborough
  The Alconbury to Peterborough section is 14 miles (23 km), and opened in 1998.
  Doncaster By-pass
  The Doncaster By-pass opened in 1961 and is one of the oldest sections of motorway in Britain. It is 15 miles (24 km) long, and runs from Blyth to Carcroft.
  Darrington to Gateshead
  The Darrington to Gateshead section was constructed between 1965 and 2018. It is 93 miles (150 km), and opened in sections:
  Junctions 56 to 59 in 1965
  Junctions 59 to 63 in 1969
  Junctions 63 to 65 in 1970
  Walshford to 49 in 1995
  Junctions 43 to 44 in 1999
  When this section opened it ended at a temporary terminus south of the M1. There was a final exit into Micklefield Village for non-motorway traffic onto what is now the access road. During the first week of June 2009, Junctions 44 and 45 were renumbered 43 and 44. At the same time the A1/A659 Grange Moor junction became A1(M) Junction 45. As a result many atlases show incorrect junction numbering for this stretch of motorway.
  Junction 46 to temporary junction at Walshford opened in 2005
  Junction 40 to south of 43 opened in 2005 & 2006
  The northern section of the upgrade, bypassing Fairburn village opened in April 2005 with a temporary connection with the A1 between Fairburn and Brotherton. The southern section, with a free-flow interchange with the M62 motorway opened on 13 January 2006.
  Junctions 44 to 46 opened in 2009
  Junctions 49 to 51 opened as of 31 March 2012. Work began in March 2009 to upgrade the Dishforth to Leeming section to dual three-lane motorway standard with existing connections being replaced by two new junctions. This work was completed on 31 March 2012.
  Junctions 51 to 56 opened in 2017 & 2018.
caption: A1(M) looking southwards from junction 2 at Hatfield
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