A1(M)

A1(M)
Route information
Part of E15
Length:	24 mi (39 km)
Existed:	1962 – present
History:	Constructed 1962–1986
Major junctions
From:	South Mimms
	J1 → M25 motorway
To:	Stotfold
Location
Primary destinations:	Hatfield, Welwyn Garden City, Stevenage, Hitchin, Letchworth
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M)
Route information
Part of E15
Length:	13 mi (21 km)
Existed:	1998 – present
Major junctions
From:	Alconbury
To:	Orton Southgate
Location
Primary destinations:	Peterborough
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M)
Route information
Part of E15
Length:	15.2 mi (24.5 km)
Existed:	1961 – present
Major junctions
From:	Blyth
	J35 → M18 motorway
To:	Red House, near Skellow
Location
Primary destinations:	Doncaster, Wakefield, Rotherham, Barnsley
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M)
Route information
Part of E15
Length:	51 mi (82 km)
Existed:	1995 – present
History:	Constructed 1995–2012
Major junctions
From:	Darrington
	J41 → M62 motorway J43 → M1 motorway
To:	Leeming Bar
Location
Primary destinations:	Wetherby, Knaresborough, Ripon
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M)
Route information
Part of E15
Length:	12 mi (19 km)
History:	Constructed 2014–
Major junctions
From:	Leeming Bar
To:	Barton
Location
Primary destinations:	Catterick, Scotch Corner
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M)
Route information
Part of E15
Length:	35.6 mi (57.3 km)
Existed:	1965 – present
History:	Constructed 1965–70
Major junctions
From:	Barton
	J57 → A66(M) motorway J65 → A194(M) motorway
To:	Birtley
Location
Primary destinations:	Darlington, Newton Aycliffe, Durham, Houghton le Spring, Chester-le-Street, Washington
Road network
Roads in the United Kingdom Motorways A and B road zones

A1(M) is the designation given to a series of five separate motorway sections in England. Each section is an upgrade to a section of the A1, a major North-South road, which connects London, the capital of England, with Edinburgh, the capital of Scotland. The first section, the Doncaster Bypass, opened in 1961 and is one of the oldest sections of motorway in Britain. Construction of a new section of A1(M) is currently underway between Leeming and Barton, with an anticipated opening in 2017. When complete it will link the Barton to Washington section with the Darrington to Leeming Bar section, forming the longest A1(M) section overall and reducing the number from five to four.

Most of the English section of the A1 is a series of alternating sections of dual carriageway and motorway. From Newcastle upon Tyne to Edinburgh it is a trunk road with alternating sections of dual and single carriageway. The table below summaries the road as motorways and non-motorways sections,

The motorway sections are discussed below.

This section opened in stages:

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Wikipedia