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A1/Improvements Timeline

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The A1 is constantly evolving… from early road straightenings and bypasses, the first tentative steps at dual carriageway sections, a comprehensive dual carriageway scheme and, finally, motorways. The following tables have been compiled from map changes through the years.

The primary resource for opening dates has been newspaper reports digitised by the British Newspaper Archive (BNA), backed up by The Gazette notices for the motorway sections. The newspaper digitising is ongoing so this source is not possible for all openings. Maps have been used, with Ordnance Survey 1 inch and Quarter inch being the most accurate, and also other online archives. In these cases the year has been entered and reference made in the notes section.

Single carriageway schemes

The table shows the improvements to the A1 which were single carriageway. It is north to south in line with A1/Early Improvements which has further history and detail about each section (in date order).

Location Historic County Date Distance Notes Location Map
Haddington East Lothian 1932 2 miles (3.2 km) Bypass
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East Linton East Lothian 1928 0.7 miles (1.1 km) Bypass
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Broxburn and Oxwell Mains East Lothian 1981 3.8 miles (6.1 km) Offline Bypass (for cement works expansion). Opened January 1981 per EL4.org.uk
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Bilsdean Glen and Dunglass Gorge East Lothian • Berwickshire 1932 1.3 miles (2.1 km) Bypass
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Cockburnspath Berwickshire 1992 1.4 miles (2.3 km) Bypass. Opened on 7 December 1992 by Lord James Douglas-Hamilton, Scottish Transport Minister. Cost £10 million.
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Ayton Berwickshire 1981 2.1 miles (3.4 km) Bypass. On 1982 OS 1:50000 revised 1982. Not on 1980 AA map
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Lamberton Berwickshire 1.3 miles (2.1 km) Bypass. On 1977 Philips map. Not on 1974 Philips map
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Berwick upon Tweed Northumberland 1928 0.3 miles (0.5 km) Royal Tweed Bridge
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Berwick upon Tweed Northumberland 1983 5.4 miles (8.7 km) Bypass. 0.4 mile was built as dual carriageway at A6105 junction
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Haggerston Northumberland 1973 1.8 miles (2.9 km) Deviation. Work started May 1972. On 1974 Philips map
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Belford Northumberland 1983 3.1 miles (5 km) Bypass
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Warenford Northumberland 1977 1.7 miles (2.7 km) Deviation
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Charlton Mires to Alnwick Northumberland 1985 4.3 miles (6.9 km) Offline – Alnwick Bypass Stage 2
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Alnwick Northumberland 1970 3 miles (4.8 km) Bypass
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Felton Northumberland 1981 2.5 miles (4 km) Offline bypass. 0.3 mile was dual carriageway at the northern junction to connect to the existing dual carriageway at Newton on the Moor.
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Stannington Northumberland 1932 0.8 miles (1.3 km) Deviation
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Newcastle and Gateshead Northumberland • Durham 1928 0.7 miles (1.1 km) Tyne Bridge
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Chester-le-Street Durham 1931 2 miles (3.2 km) Bypass
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Pity Me and Framwellgate Moor Durham 1961 1.4 miles (2.3 km) Offline bypass
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Ferryhill Durham 1 miles (1.6 km) Bypass. On OS New Popular Edition map c1947
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Aycliffe Durham 1930 0.5 miles (0.8 km) Bypass
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Ferrybridge Yorkshire 1931 0.5 miles (0.8 km) Bypass
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Sutton on Trent Nottinghamshire 1930 0.5 miles (0.8 km) Level Crossing Bypass
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Carlton-on-Trent Nottinghamshire 1931 0.5 miles (0.8 km) Bypass
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Foston Lincolnshire 1928 0.9 miles (1.4 km) Bypass
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Colsterworth Lincolnshire 1926 2 miles (3.2 km) Bypass
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Wansford Northamptonshire • Huntingdonshire 1929 0.9 miles (1.4 km) Bypass and River Nene Bridge
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Welwyn Hertfordshire 1927 0.9 miles (1.4 km) Bypass. It was part of a scheme to widen the Great North Road to 60 feet with a 30 foot carriageway. In October 1927 this work had reached Woolmer Green.
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Barnet and Hatfield Hertfordshire • Middlesex 1928 17.5 miles (28.2 km) Bypass (the northern section had opened in 1927)
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Dual carriageway schemes

The table shows the improvements in making the A1 dual carriageway. It includes the first dualling of a route that was or became A1. Thus, some sections that are included were dualled before being renumbered to A1. It is north to south in line with A1/Early Improvements which has an evolving further history and detail about the sections (in date order).


Location Historic County Date Distance Notes Location Map
Musselburgh Midlothian • East Lothian 1986 5.7 miles (9.2 km) Offline Bypass. Opened 1986 per EL4.org.uk
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Tranent East Lothian 1986 3.6 miles (5.8 km) Offline Bypass. Opened 1986 per EL4.org.uk
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Macmerry to Haddington East East Lothian 1996 5.1 miles (8.2 km) Offline. Opened 1996 per EL4.org.uk
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Haddington East to Dunbar, Thistly Cross Roundabout East Lothian 2004 4.5 miles (7.2 km) Offline
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Dunbar: Thistly Cross Roundabout to Bowerhouse East Lothian 2005 0.6 miles (1 km) Offline and Online
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Dunbar: Bowerhouse to Spott Roundabout East Lothian 2002 1 miles (1.6 km) Offline and Online. To 0.3 mile west of Spott.
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Dunbar Spott Roundabout to Oswald Dean A1087 East Lothian 1999 1.5 miles (2.4 km) Online. From 0.3 mile west of Spott. 22 December 1999 per EL4.org.uk
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Oswald Dean A1087 to Innerwick East Lothian 1.8 miles (2.9 km) Online. Under construction per Hansard debate report 29 July 1997. On 2001 AZ
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End of continuous dual carriageway from Edinburgh
Torness East Lothian 0.2 miles (0.3 km) Online. On OS 1:50000 map revised 1982
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Penmanshiel Berwickshire 1996 0.9 miles (1.4 km) Online. South from A1107 by Tower Farm. Completion date Late November 1996 per Hansard written answer 27 November 1996
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Penmanshiel Berwickshire 0.8 miles (1.3 km) Online. From 0.9 miles south of A1107. On OS 1:50000 map revised 1982
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Houndwood to Howburn Berwickshire 2003 1.3 miles (2.1 km) Offline and Online. Construction to start 15 July 2002 and should be completed in 2003 per Hansard Debate record 9 July 2002
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Howburn to Lemington Berwickshire 1997 1.1 miles (1.8 km) Offline and Online. Under construction per 29 July 1997 Hansard Debate record. Was expected to complete by late 1997 per Hansard Debate report 27 November 1996
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Lamberton to Berwick Berwickshire • Northumberland 1993 2.6 miles (4.2 km) Online. Marshall Meadows scheme
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Berwick Bypass Northumberland 1983 0.4 miles (0.6 km) Offline. At A6105 junction of the 5.4 mile bypass
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Brownieside, North Charlton Northumberland 1993 1.4 miles (2.3 km) Offline and Online
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Alnwick Northumberland 2003 2.4 miles (3.9 km) Online. Opened in 2003 per ciht.org,uk North Eastern Branch
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Alnwick Bypass south junction Northumberland 0.3 miles (0.5 km) Online. On OS 1:50000 revised 1984
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Alnwick to Cawledge Northumberland 1990 1.2 miles (1.9 km) Online. Work started April 1989 and took 15 months per Hansard written answers
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Cawledge to Hitchcroft (Deanmooor section) Northumberland 1996 1.3 miles (2.1 km) Online
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Hitchcroft to Newton Northumberland 0.9 miles (1.4 km) Online. After Readers Digest map May 1974. On OS 1:250000 revised December 1982.
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Newton on the Moor Northumberland 1950 2.7 miles (4.3 km) Online – parts may have opened earlier. Construction had started in 1939, but halted due to the war.
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Felton Bypass North Junction Northumberland 1981 0.3 miles (0.5 km) Online and offline. A short extension of the Newton on the Moor dual carriageway to pass the junction. Built as part of the Felton Bypass.
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Felton Northumberland 2000 1.1 miles (1.8 km) Online - northern section of bypass. Under construction in May 1999 per report. Not on 2000 OS Atlas but on 2001 A to Z Atlas
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Start of continuous dual carriageway to London
Morpeth Northumberland 1970 4 miles (6.4 km) Offline and Online. It is not yet clear whether the dual carriageway started from A697 junction. This section is on the 1984 OS 1:50000 map.
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Clifton to Stannington Bridge Northumberland 1987 2.7 miles (4.3 km) Online and Offline bypass
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Stannington Bridge to Seaton Burn Northumberland 1970 2.5 miles (4 km) Offline (Blagdon Bends deviation)
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Seaton Burn and Wide Open Northumberland 1971 2.7 miles (4.3 km) Offline Bypass. The southern 0.4 mile became superceded following the opening of the Newcastle Western Bypass in 1990
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Wide Open to Blaydon Bridge Northumberland 1990 5.2 miles (8.4 km) Offline Bypass - Newcastle Western Bypass
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Blaydon Bridge Northumberland • Durham 1990 1.5 miles (2.4 km) New Bridge and approach roads
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Blaydon to Team Valley Durham 1974 4.8 miles (7.7 km) Offline Bypass – Gateshead Western Bypass (originally opened as A613
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Team Valley to Birtley Durham 1975 1.3 miles (2.1 km) Offline Bypass – Gateshead Western Bypass (originally opened as A613)
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Birtley Durham 1942 4 miles (6.4 km) Offline Bypass
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Birtley to Carrville Durham 1969 6 miles (9.7 km) Offline Motorway
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Carrville to Bowburn Durham 1969 4.5 miles (7.2 km) Offline Motorway
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Bowburn to Bradbury Durham 1969 6.5 miles (10.5 km) Offline Motorway
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Bradbury to Aycliffe Durham 1967 5 miles (8 km) Offline Motorway
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Aycliffe to Barton Durham • Yorkshire 1965 10.5 miles (16.9 km) Offline Motorway
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Barton to Kneeton Yorkshire 1965 0.5 miles (0.8 km) Online – expect same time as A1(M) since it joined Barton interchange
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Kneeton to Scotch Corner Yorkshire 1 miles (1.6 km) Offline and Online – on 1960 (revised Dec 1960) OS One inch
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Scotch Corner Yorkshire 0.3 miles (0.5 km) Online – on 1960 (revised Dec 1960) OS One inch
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Scotch Corner to Catterick Bridge Yorkshire 1960 2.2 miles (3.5 km) Online and Offline – from original A6108 junction, south of Scotch Corner. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Catterick Yorkshire 1959 3 miles (4.8 km) Offline Bypass
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Catterick to Leases Hall Yorkshire 1958 4.3 miles (6.9 km) Online – Completed in 1958 per Hansard written answer
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Leeming Yorkshire 1961 3.5 miles (5.6 km) Offline Bypass
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Londonderry to Hope Town, Burneston Yorkshire 1958 1.8 miles (2.9 km) Online. Completed in 1958 per Hansard written answer
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Hope Town, Burneston to Street House Farm, Sinderby Yorkshire 2 miles (3.2 km) Online – on 1953 OS 1:25000 but the straightening at Healam Bridge not on 1950 1 inch
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Street House Farm, Sinderby to Coldstone Lane, Sinderby Yorkshire 1958 1 miles (1.6 km) Online. Completed in 1958 per Hansard Written Answer
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Coldstone Lane, Sinderby to Baldersby Gate (A61) Yorkshire 2.7 miles (4.3 km) Online – on 1953 OS 1:25000 but the new railway bridge at Baldersby Gate not on 1950 1 inch
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Baldersby Gate (A61) to Dishforth Yorkshire 1960 2.3 miles (3.7 km) Online. Work started and expected to be completed by 2 years per 8 April 1959 Hansard written report. Was on 1961 revised OS
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Dishforth to Marton-le-Moor Yorkshire 1960 1.5 miles (2.4 km) Online. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Boroughbridge Yorkshire 1963 4 miles (6.4 km) Offline Bypass
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Ornhams Hall to Allerton Yorkshire 1960 5 miles (8 km) Online - 1960 per UK Motorway Archive. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Allerton Station Yorkshire 1962 0.9 miles (1.4 km) Offline - New bridge to replace level crossing. 1962 per UK Motorway Archive. Authorised but not started at June 1961 per Hansard Written answer
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Allerton to Wetherby Yorkshire 1960 4.2 miles (6.8 km) Online - 1960 per UK Motorway Archive. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Wetherby Yorkshire 1959 2.3 miles (3.6 km) Offline Bypass
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Wetherby to Bramham Yorkshire 1965 3 miles (4.8 km) Online - 1965 per UK Motorway Archive. Commenced in 6 months to 31 December 1963 and expected complete July 1965 per Hansard written answer
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Bramham Yorkshire 1965 0.7 miles (1.1 km) Offline Bypass - 1965 per UK Motorway Archive. Commenced in 6 months to 31 December 1963 and expected complete July 1965 per Hansard written answer
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Bramham to Aberford Yorkshire 1965 2.5 miles (4 km) Online - 1965 per UK Motorway Archive. Commenced in 6 months to 31 December 1963 and expected complete July 1965 per Hansard written answer
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Aberford Yorkshire 1963 2.5 miles (4 km) Offline Bypass - 1963 per UK Motorway Archive. Under construction at 30 June 1961 per Hansard written answer
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Hook Moor to Micklefield Yorkshire 1963 0.8 miles (1.3 km) Online – under construction at 30 June 1961 per Hansard Written answer. On 1964 OS. Taken as same year as adjacent Aberford Bypass
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Micklefield Yorkshire 1960 1.8 miles (2.9 km) Offline Bypass
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Micklefield to Selby Fork Yorkshire 1964 1.5 miles (2.4 km) Online – 1964 per UK Motorway Archive. Complete at 10 December 1963 or to be completed in 1964 per Hansard written report
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Selby Fork Yorkshire 1964 0.5 miles (0.8 km) Offline – under construction on 1964 OS, new on 1965 OS Route Planner. Complete at 10 December 1963 or to be completed in 1964 per Hansard written report
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Selby Fork to Brotherton Yorkshire 1964 2.2 miles (3.5 km) Online – 1964 per UK Motorway Archive. Complete at 10 December 1963 or to be completed in 1964 per Hansard written report
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Brotherton Yorkshire 1962 1 miles (1.6 km) Offline Bypass
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Ferrybridge Yorkshire 1967 1.2 miles (1.9 km) Offline Bypass, Online and new River Aire Bridge
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Ferrybridge to Darrington Yorkshire 1961 1.8 miles (2.9 km) Online – 1961 per UK Motorway Archive. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Darrington Yorkshire 1938 0.7 miles (1.1 km) Offline and Online. One newspaper reported that it was a trial section of dual carriageway. It was planned to extend it northwards from Spitalgap Lane to Knottingley in 1939 but the war thwarted it and only the roundabout with A645 at Knottingley and a short widened section south of the roundabout was built.
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Darrington to Wentbridge Yorkshire 1961 0.7 miles (1.1 km) Online – 1961 per UK Motorway Archive. Completed between 6 July 1959 and 5 July 1961 per Hansard written answer
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Wentbridge Yorkshire 1961 2 miles (3.2 km) Offline Bypass
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Wentbridge to Red House Yorkshire 1961 4.8 miles (7.7 km) Online – July 1961 per UK Motorway Archive. Expected to be completed in Summer 1961 per Hansard written answer
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Redhouse to Blyth Yorkshire • Nottinghamshire 1961 12.5 miles (20.1 km) Offline Motorway
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Blyth Nottinghamshire 1960 1 miles (1.6 km) Offline Bypass
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Blyth to Ranby Nottinghamshire 1966 4.3 miles (6.9 km) Online – new on 1967 (revised Nov 1966) OS Route Planner
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Ranby to Apleyhead Nottinghamshire 1959 0.8 miles (1.3 km) Online and an offline bridge over the railway at the former Checker House Station. Apleyhead is also known as Five Lanes End. A614 until 1961.
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Apleyhead to Elkesley Nottinghamshire 1958 3 miles (4.8 km) Online. A57 until 1961.
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Elkesley Nottinghamshire 1938 1.2 miles (1.9 km) Offline and Online Bypass. A57 until 1961.
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West Drayton Nottinghamshire 1958 1.6 miles (2.6 km) Offline Bypass. A57 until 1961. Completed in 1958 per Hansard written answer
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Tuxford, Weston and Sutton on Trent Nottinghamshire 1967 8 miles (12.9 km) Offline Bypass
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Carlton to Cromwell Nottinghamshire 1966 0.8 miles (1.3 km) Offline
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Cromwell Nottinghamshire 1966 0.9 miles (1.4 km) Offline Bypass
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Cromwell to North Muskham Nottinghamshire 1966 2.3 miles (3.7 km) Online
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Newark Nottinghamshire 1964 6 miles (9.7 km) Offline Bypass
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Balderton to Shire Bridge Nottinghamshire 1971 1.7 miles (2.7 km) Offline and Online. Work to start September 1969 and expected completion March 1971 per Hansard written answer
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Shire Bridge to Long Bennington Lincolnshire 1968 1.4 miles (2.3 km) Online. Work started March 1968 and expected completion Dec 1968 per Hansard written answer
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Long Bennington Lincolnshire 1968 2.5 miles (4 km) Offline Bypass
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Foston Lincolnshire 1959 1.2 miles (1.9 km) Online – 1959 per Hansard written answer
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Foston to Gonerby Moor Lincolnshire 1959 2.4 miles (3.9 km) Online
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Gonerby Moor Lincolnshire 0.2 miles (0.3 km) Online. The gap... between the Foston to Gonerby Moor section dualled in 1959 and the Grantham bypass completed in 1962. It is shown as single carriageway on the OS 1 inch map as late as 1968, although dualling is shown between the 1964 and April 1965 editions of the OS Quarter inch map.
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Grantham Lincolnshire 1962 6.3 miles (10.1 km) Offline Bypass
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Little Ponton to Colsterworth Lincolnshire 1961 4.3 miles (6.9 km) Online. Expected complete in late 1961 per Hansard written answer
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Colsterworth: Bridge End Lincolnshire 1960 0.6 miles (1 km) Offline. Bypass extension. Expected complete in Summer 1959 per Hansard written answer, but not on 1960 Melton Mowbray OS Map
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Colsterworth Lincolnshire 1960 1.6 miles (2.6 km) Online. The Green Parrot Cafe to Gem Cafe improvement. Expected complete in Summer 1959 per Hansard written answer, but not on 1960 Melton Mowbray OS Map
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Colsterworth to South Witham Lincolnshire 1965 2 miles (3.2 km) Online – First appears on April 1965 OS Quarter inch map (not on 1964 edition)
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South Witham to Tickencote Lincolnshire • Rutland 1971 8.5 miles (13.7 km) Online
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Stamford Bypass Rutland • Lincolnshire • Northamptonshire 1960 4 miles (6.4 km) Offline Bypass
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Carpenters Lodge to Wansford Northamptonshire 1959 4 miles (6.4 km) Online (to just north of River Nene)
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Wansford to Stibbington Northamptonshire • Huntingdonshire 1975 0.6 miles (1 km) Online including 2nd River Nene Bridge. On 1976 OS Route Planner and there is a reference to 1975 at Wansford Bypass Bridge
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Stibbington to Water Newton Huntingdonshire 1959 2.5 miles (4 km) Online
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Water Newton to Norman Cross Huntingdonshire 1958 5 miles (8 km) Online
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Stilton Huntingdonshire 1958 1.3 miles (2 km) Offline Bypass
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Stilton to Woolpack Crossroads Huntingdonshire 1958 1 miles (1.6 km) Online
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Woolpack Crossroads to Alconbury Hill Huntingdonshire 1957 6 miles (9.7 km) Online
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Alconbury Huntingdonshire 1964 2 miles (3.2 km) Online and Offline Bypass
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Alconbury to Brampton Hut Huntingdonshire 1961 2 miles (3.2 km) Online
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Brampton Hut to Buckden Huntingdonshire 1958 2.5 miles (4 km) Online
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Buckden Huntingdonshire 1962 1.5 miles (2.4 km) Offline Bypass
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Buckden to Southoe Huntingdonshire 1960 1.9 miles (3.1 km) Online (may have opened in late 1959)
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Southoe to Hail Bridge, Little Paxton Huntingdonshire 1969 1.7 miles (2.7 km) Online and offline. Hail Bridge is 0.4 miles south of Little Paxton. Under construction on 1968 OS 1 inch map. On 1970 Quarter inch map
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Eaton Socon Huntingdonshire • Bedfordshire 1971 3.2 miles (5.1 km) Offline Bypass – opened 1971 per a Hansard answer. On June 1971 OS map.
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Wyboston Bedfordshire 1960 1.3 miles (2 km) Online
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Tempsford Bedfordshire 1962 2 miles (3.2 km) Offline and Online and 2nd River Ouse Bridge (may have opened late 1961)
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Tempsford to Girtford Bedfordshire 1962 1.3 miles (2.1 km) Online. Under construction June 1961 per Hansard written answer. Before 1963 per OS
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Girtford Railway Bridge Bedfordshire 1961 0.3 miles (0.5 km) Online. Completed by 5 July 1961 per Hansard written answer
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Girtford and Sandy Bedfordshire 1962 1 miles (1.6 km) Offline and Online – work started 2 January 1961 per Hansard written answer. Under construction on OS Half inch map revised April 1962. On 1963 OS Quarter inch map
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Beeston to Biggleswade Bedfordshire 1962 2 miles (3.2 km) Online. In progress June 1961 per Hansard written answer. On OS Half inch map revised April 1962
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Biggleswade Bedfordshire 1961 3 miles (4.8 km) Offline Bypass and Online
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Newspring Cottages to Astwick Turn Bedfordshire 1958 2.8 miles (4.4 km) Online
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Astwick Turn to A1(M) Bedfordshire 1967 0.5 miles (0.8 km) Online
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Baldock Bedfordshire • Hertfordshire 1967 4 miles (6.4 km) Offline Motorway - J10 to J8
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Stevenage Hertfordshire 1962 7.5 miles (12.1 km) Offline Motorway - J8 to J6 (at north exit onto Welwyn Bypass)
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Welwyn Garden City Hertfordshire 1973 2.7 miles (4.3 km) Online Motorway - J6 (at north exit onto original Welwyn Bypass) to 0.4 mile north of current J5 roundabouts. Opened 10 August 1973 per Gazette. For further information on the full section opened see Motorway Upgrades: Welwyn to Stanborough.
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Lemsford Hertfordshire 1968 0.4 miles (0.6 km) Online – For 0.4 mile north of current J5 roundabouts. May have opened in 1967. Converted to motorway in 1973.
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Lemsford and Stanborough Hertfordshire 1969 1.4 miles (2.3 km) Online and Offline – from current J5 roundabouts to J4. Was shown as under construction on Oct 1968 revised OS, may have opened later in 1968. The north section to Stanborough (temporary junction with A6129), 1 mile south of J5, was converted to motorway in 1973 and the remainder south to J4 was converted to motorway in 1986.
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Hatfield Hertfordshire 1986 2.8 miles (4.5 km) Online and Offline Motorway J4 to J2 including Hatfield Tunnel
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Hatfield to South Mimms Hertfordshire • Middlesex 1979 3.1 miles (5 km) Online and Offline Motorway - J2 to just north of B556 (former A111)
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South Mimms Middlesex 1975 1.3 miles (2.1 km) Online and Offline. From just north of B556 (former A111) to J1. Constructed at same time as Bignells Corner interchange (also known as South Mimms Interchange). Re-numbered A1(M) in 1979.
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South Mimms to Fairway, Mill Hill Middlesex • Hertfordshire 1961 4.4 miles (7.1 km) Online. Completed by 5 July 1961 per Hansard written answer
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Fairway, Mill Hill to Apex Corner (Mill Hill) Middlesex 1961 0.3 miles (0.5 km) Online. Apex Corner is also known as Northway Circus. Completed by 8 June 1961 per Hansard written answer
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Apex Corner (Mill Hill) to Mill Hill Circus Middlesex 1954 0.6 miles (1 km) Online. Apex Corner is also known as Northway Circus. Expected completion was December 1954 per Hansard written answer
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Mill Hill Circus to Five Ways, Hendon Middlesex • Hertfordshire 1958 1.2 miles (1.9 km) Online. Five Ways was also known as Page Street
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Five Ways to Finchley Lane, Hendon (A504) Middlesex 1962 1.3 miles (2.1 km) Online. Five Ways was also known as Page Street. Under construction at 8 June 1961 per Hansard written answer. On OS Half inch map revised April 1962
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Finchley Lane, Hendon (A504) to North Circular Road Middlesex 1969 0.3 miles (0.5 km) Online. Not on OS 1 inch map revised October 1968 but on 1970 Routeplanner revised September 1969
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North Circular Road multiplex – west Middlesex 1969 0.2 miles (0.3 km) Online. Not on OS 1 inch map revised October 1968 but on 1970 Routeplanner revised September 1969
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North Circular Road multiplex - east Middlesex 1963 0.2 miles (0.3 km) Online. On OS 1 inch map revised August 1963. Not on OS Half inch map revised April 1962
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Falloden Way (after multiplex) Middlesex 0.2 miles (0.3 km) Online. Not on OS 1:50000 map revised 1983
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End of continuous Dual Carriageway from Northumberland
Highgate: Archway Road Middlesex 0.5 miles (0.8 km) Online. Not on OS 1 inch map revised October 1968. On OS 1:50000 map revised 1983
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Holloway Middlesex 0.6 miles (1 km) Online. Not on OS 1:50000 map revised 1983
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Dual Carriageway schemes superceded by a more complete scheme

The table shows the improvements in making the A1 dual carriageway that were superceded by a more complete scheme (motorway sections up until 1980 and the Newcastle/ Gateshead Western Bypass). It includes the first dualling of a route that was or became A1. It is north to south in line with A1/Early Improvements which has an evolving further history and detail about the sections (in date order). The table will be expanded in due course.


Location Historic County Date Distance Notes Location Map
Early Newcastle schemes Superceded in 1977 by the Tyne Tunnel route
Gosforth Park to Gosforth Northumberland 1958 0.7 miles (1.1 km) Online. Completed in 1958 per Hansard written answer, 0.75 miles.
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Gosforth Park Northumberland 0.6 miles (1 km) Online. On 1965 OS 1 inch
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The Tyne Tunnel route 1977 to 1990 (prior to re-routing along the Newcastle Western Bypass).
Main Article: A1/via Tyne Tunnel
Seaton Burn to Holystone Interchange Northumberland 1970 5.8 miles (9.3 km) Offline. 20 October 1970 (opened as A108
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Holystone Interchange to Coast Road Northumberland 1969 2 miles (3.2 km) Offline. 13 May 1969 (opened as A108)
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Coast Road to Tyne Tunnel Northumberland 1967 1.4 miles (2.3 km) Offline (opened as A108)
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The Tyne Tunnel opened in 1967 was a single carriageway Tunnel (opened as A108)
Tyne Tunnel Southern approach Durham 1967 0.3 miles (0.5 km) Offline (opened as A108)
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Tyne Tunnel to Lindisfarne Interchange Durham 1968 0.7 miles (1.1 km) Offline (opened as A108). Between March 1968 OS Quarter inch and August 1968 OS 1 inch maps
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Lindisfarne Interchange to Testos Roundabout Durham 1968 1.6 miles (2.6 km) Offline. Between July 1967 OS Route Planner and March 1968 OS Quarter inch maps (opened as A108)
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Testos Roundabout to White Mare Pool Interchange Durham 1969 1.6 miles (2.6 km) Online. November 1969 (opened as A184)
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White Mare Pool Interchange to Birtley Interchange Durham 1970 3.5 miles (5.6 km) Offline Motorway – opened as A194(M)
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Early Durham schemes Superceded in 1969 by the Darlington and Durham Motorway
Eighton Durham 0.7 miles (1.1 km) Online extension northwards from Birtley Bypass. On Feb 1964 OS Quarter inch map. Not on 1950s 1:25000.
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Chester Moor Durham 1969 1.3 miles (2.1 km) On September 1969 OS Route Planner map. Not on October 1968 OS 1 inch. May have opened late 1968.
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Plawsworth Durham 1968 1.3 miles (2.1 km) Online. On October 1968 OS 1 inch map. Not on March 1968 OS Quarter inch.
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Plawsworth to Pity Me Durham 1 miles (1.6 km) Online. On Feb 1974 OS 1 inch map. Not on October 1968 OS 1 inch.
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Farewell Hall, south of Durham Durham 1939 0.5 miles (0.8 km) Online
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Farewell Hall to Browney Bridge Durham 1957 1 miles (1.6 km) Online
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Early Hatfield schemes Superceded in 1986 by the Hatfield Tunnel scheme
Hatfield Hertfordshire 0.4 miles (0.6 km) Online. On October 1968 OS 1 inch map.
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Hatfield Hertfordshire 0.7 miles (1.1 km) Online. On August 1963 OS 1 inch map.
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Later improvements to existing dual carriageway sections

The table shows the later improvements to existing dual carriageway sections. It includes newer offline sections or re-routing. It is north to south in line with A1/Early Improvements which has an evolving further history and detail about the sections (in date order).


Location Historic County Date Distance Notes Location Map
Stannington to Seaton Burn Northumberland 2.5 miles (4 km) Dual carriageway widening and bridge repairs. Work started 1995
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Scotch Corner Yorkshire 1971 Offline Grade separated junction. 1971 per Motorway Archive Trust.
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Motorway upgrades

The table shows the upgrading of dual carriageway sections to motorway. It also includes newer offline sections or re-routing. It is north to south in line with the other tables.

Location Historic County Date Distance Notes Location Map
Birtley Durham 1970 1.8 miles (2.8 km) Opened 16 January 1970 per Newcastle Evening Chronicle. J63 to J65. The Gazette stated a later opening date of 1 June 1970.
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The original Birtley to Barton motorway is shown in Dual Carriageway Schemes
Barton to Catterick Yorkshire 2018 4.2 miles (6.8 km) Opened 26 February 2018. J56 to 2 miles south of J53 Scotch Corner
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Catterick Yorkshire 2018 2 miles (3.2 km) Opened 29 March 2018. 2 miles south of J53 Scotch Corner to J52 (northbound carriageway: 1.3km south of J52, 2.7 miles). Note that this section was opened later than the Gazette notice of 26 February 2018.
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Catterick to Leeming Yorkshire 2017 5.5 miles (8.9 km) Opened 22 September 2017. J52 to J51 (northbound carriageway: 1.3km south of J52 to J51, 4.9 miles)
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Leeming to Baldersby Yorkshire 2012 10.1 miles (16.3 km) Opened 31 March 2012. J51 to J50 (northbound carriageway opened in two stages: 19 March 2012 - 6.1km from 930m south of Gatenby Lane Bridge to J50. 28 March 2012 - 4km from J51 to 930m south of Gatenby Lane Bridge)
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Baldersby to Dishforth Interchange Yorkshire 2011 2.6 miles (4.2 km) Opened 6 October 2011. J50 to J49
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Dishforth Interchange to Walshford Yorkshire 1995 13.7 miles (22 km) Opened 27 November 1995 per Gazette notice. J49 to Walshford temporary junction. The 2002 Ordnance Survey 1:50000 map showed this junction by the Moor Lane overbridge with a connection to the A168 local access road that had been built alongside the new motorway. The Gazette notice termination point was stated as 450m south of Whixley Lane, which is 0.5km north of the junction shown on the map. Sabre forum discussion is at [1]
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Walshford to Kirk Deighton (Wetherby) Yorkshire 2004 2.9 miles (4.7 km) Opened 17 December 2004. Walshford temporary junction to J46. It was also reported on Sabre on 19 December 2004 that it was open for 2 lane running each way with a 50mph limit. Note that the Gazette notice stated the opening date as 14 March 2005 and also that the start point was 528m north of Moor Lane Bridge at Walshford.
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Kirk Deighton (Wetherby) to Bramham Crossroads Yorkshire 2009 6 miles (9.7 km) Opened 31 July 2009. J46 to J44. See A1(M) Bramham to Wetherby
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Bramham Crossroads to Micklefield Yorkshire 1998 4 miles (6.4 km) Opened 18 December 1998 per Gazette but not confirmed from other sources. J44 to temporary connection to A1 on Micklefield Bypass. Part of the M1 – A1 Link contract (opened 4 February 1999). The southern termination point per The Gazette was stated as 520 metres south of the Old Great North Road. From the stated 6.17km length of motorway (from 30m north of Occupation Road by J44) this would be at a point to the east of Church Lane in Micklefield, roughly half way along the bypass and between junctions. The mid junction termination was highlighted on Roads.org.uk at [2] . Ordnance Survey showed the motorway as proceeding to the interchange with A63 at the site of current Boot and Shoe Roundabout whereas Geographers' A-Z showed the motorway changing to trunk road along the bypass. Note there was an East of Micklefield Appropriation Order from 1995 which allowed the appropriation as special road of part of the existing A1 from the date on which that road is first open for use as a special road. However the new motorway alignment is slightly to the east and built at a later date. The distance and map shows the section as per the Gazette.
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Micklefield to Brotherton Yorkshire 2005 5.2 miles (8.4 km) Opened 6 February 2005 Southbound and 4 April 2005 Northbound. Temporary connection to A1 on Micklefield Bypass to temporary connection with existing A1 between Fairburn and Brotherton. Opening dates from Sabre Forum [3] and BBC News report of 4 April 2005. No notice of opening has come up in a search of the The Gazette.
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Brotherton to Darrington Yorkshire 2006 4.5 miles (7.2 km) Opened 13 January 2006. Temporary connection with existing A1 between Fairburn and Brotherton to J40. Opening Date per Sabre Forum [4]. No notice of opening has come up in a search of the The Gazette.
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End of Birtley to Darrington motorway section
The original Red House to Blyth motorway is shown in Dual Carriageway Schemes
Fletton Parkway Interchange to Alconbury Huntingdonshire 1998 12.8 miles (20.6 km) Opened 31 October 1998 per Gazette. J17 to un-numbered junction with B1043 south of Alconbury. There is also a spur from J14 to A1307. See A1(M)/Alconbury - Peterborough
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The original Baldock to Welwyn motorway is shown in Dual Carriageway Schemes
Welwyn to Stanborough Hertfordshire 1973 3.8 miles (6.1 km) Opened 10 August 1973 per Gazette. J6 (north exit onto Welwyn Bypass) to Stanborough temporary junction 0.8 mile south of J5, about 148 yards north of the new A1 bridge crossing the then A6129 Stanborough Road (later B197). There was no southbound exit just a continuation onto A1. There was a temporary northbound exit from A1 which connected to B197 Great North Road 0.1 mile north of Stanborough village roundabout. The Motorway Archive Trust has an opening date of May 1973. A roadworks report of 8 July 1973 included A1 at Digswell Hill, which is south of J6 (as well as roadworks on A1(M) between Stevenage and Welwyn) which would indicate that the new motorway was not open at that stage. Note that the section north of J5 has already been included in Dual Carriageway Schemes. This entry gives clarity to the full section opened.
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Stanborough to Oldings Corner Hertfordshire 1986 0.5 miles (0.8 km) Opened 10 December 1986 per Gazette. Stanborough temporary junction to J4. It opened along with the section from J4 to J2 already shown in Dual Carriageway schemes. Stanborough temporary junction was 0.8 mile south of J5, about 148 yards north of the new A1 bridge crossing the then A6129 Stanborough Road (later B197).
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The original Hatfield to South Mimms motorway is shown in Dual Carriageway Schemes
South Mimms Hertfordshire • Middlesex 1979 1.2 miles (1.9 km) Opened 1 May 1979 per Gazette. From just north of B556 (former A111) Cecil Road bridge to J1 Bignells Corner interchange (also known as South Mimms Interchange). This section was constructed as A1 in 1975 and was re-numbered as A1(M) upon the opening of the section northwards from J2 in 1979.
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Old A1 looking north - Coppermine - 1257.JPGNoel Sims plot of land - Coppermine - 20333.JPGA1 new GSJ 1 - Coppermine - 18705.jpgArchway, London N19 - Geograph - 1638618.jpgA1246 (old A1) Fairburn - Coppermine - 21252.JPG

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