|Part of E13|
|Length:||193.5 mi (311.4 km)|
|Existed:||1959–60 – present|
|History:||Completed in 1999|
|South end:||London A406 (A406)
J6a → M25 motorway
J17 → M45 motorway
J19 → M6 motorway
J21 → M69 motorway
J32 → M18 motorway
J42 → M62 motorway
J43 → M621 motorway
J48 → A1(M) motorway
|North end:||Hook Moor (A1(M))
|Watford, Luton, Milton Keynes, Northampton, Leicester, Nottingham, Derby, Sheffield, Rotherham, Barnsley, Wakefield, Leeds.|
The M1 is a north–south motorway in England connecting London to Leeds, where it joins the A1(M) near Aberford. It was the first inter-urban motorway to be completed in the United Kingdom; the first road to be built to motorway standard in the country was the Preston By-pass, which later became part of the M6.
The motorway is 193 miles (311 km) long and was constructed in four phases. Most of the motorway was opened between 1959 and 1968 but the southern end was extended in 1977 and the northern end was extended in 1999. It forms part of the unsigned European route E13.
The first motorways (autostrades) were built in Italy on the order of Benito Mussolini in the 1920s, with other countries subsequently following, notably Germany with the first 'autobahn' in 1931 and then developed by the Nazis under Adolf Hitler. There had been plans since before the Second World War for a motorway network in the United Kingdom. Lord Montagu formed a company to build a 'motorway like road' from London to Birmingham in 1923, however it was a further 26 years before the Special Roads Act 1949 was passed which allowed for the construction of roads limited to a limited vehicle classifications and the 1950s when the country's first motorways were given the government go-ahead. The first section of motorway was the Preston Bypass in Lancashire, which opened in 1958 (now part of the M6 motorway). The M1 was Britain's first full-length motorway and opened in 1959.
First section, 1959 
The first section of the motorway opened between Junction 5 (Watford) and Junction 18 (Crick/Rugby) on 2 November 1959 together with the motorway's two spurs, the M10 (from Junction 7 to south of St Albans originally connecting to the A1) and the M45 (from Junction 17 to the A45 and Coventry). Parts of the Hertfordshire section were built using steam rollers.
The M1 was officially inaugurated from Slip End (close to Luton), this was celebrated by a large concrete slab on the bridge next to the village with inscription "London-Yorkshire Motorway – This slab was sealed by the Rt Hon Harold Watkinson M.P. – Minister of Transport – Inauguration Day – 24th March 1958". It was removed during widening works in 2007-08.
This section of the M1 broadly follows the route of the A5 north-west. It starts at the Watford Bypass (A41), which runs south-east to meet the A1 at Apex corner, and ended on the A5 at Crick. The M10 spur motorway connected the M1 to the North Orbital Road (A405/A414, a precursor of the M25) where it also met the A5 (now renumbered here as the A5183) and, 2 miles (3.2 km) to the east via the A414, the A6, which subsequently became part of the M25.
Although the whole of first section opened in 1959, it was built in two parts with the northern part (Junctions 10 to 18) being built by John Laing and the southern part (the St Albans Bypass) being built by Tarmac Construction.
Rugby to Leeds, 1965 to 1968 
The continuation of the motorway from Junction 18 towards Yorkshire was carried out as a series of extensions between 1965 and 1968. Diverging from the A5, the motorway takes a more northerly route through the East Midlands, via Leicester, Loughborough, Nottingham to Sheffield, where the M18 splits from the M1 at Junction 32 to head to Doncaster.
Originally, the M1 was planned to end at Doncaster but it was decided to make what was going to be the "Leeds and Sheffield Spur" the primary route with the 11-mile (18 km) section to the A1(M) south of Doncaster given the separate motorway number M18.
From Junction 32, the motorway passes between Sheffield and Rotherham towards Barnsley and then heads towards Wakefield, reaching the original end of the motorway at Junction 44 to the east of Leeds. There were plans to route the M1 from just south of Junction 42 where it interchanges with the M62, round the west of Leeds to the A1 at Dishforth; the chosen route passes to the east of Leeds. With the M62 and M621, the M1 forms a ring of motorways around the south of Leeds.
Leeds South Eastern Urban Motorway, 1972 
In 1972 an extension of the M1 was opened into central Leeds as the Leeds South Eastern Motorway where it met the Leeds South Western Motorway (M621) coming north-east from the M62 at Junction 3.
In July 1972 the UK Minister for Transport Industries, John Peyton announced that 86 miles (138 km) of UK motorway particularly prone to fog would benefit from lighting in a project which "should be" completed by 1973. Sections to be illuminated included the M1 between Junctions 3 and 14, and between Junctions 16 and 24. In August 2011, the Highways Agency announced that despite being converted to Managed Motorway the lights will be switched off on stretches of the motorway between Junctions 10 (Luton) and 13 (Milton Keynes) without affecting road user safety. The motorway junctions and their approaches, and a section of the M1 on either side of Junction 11 (north Luton), would have lighting columns replaced and remain lit.
Safety barriers 
An increasing official interest in secondary safety was evident in an announcement in March 1973 that work would shortly begin on erecting "tensioned safety barriers" along the central reservation of a 34-mile (55 km) section of the M1 between Kegworth (J24) and Barlborough (J30).
Leeds to Hook Moor, 1999 
Between 1996 and 1999 the M1 section north of the M62 underwent a major reconstruction and extension to take the M1 on a new route to the A1(M) at Aberford. The new road involved the construction of a series of new junctions, bridges and viaducts to the east of Leeds. When the new section of M1 was completed and opened on 4 February 1999, the Leeds South Eastern Motorway section of the M1 was redesignated as the M621 and the junctions were given new numbers (M621 Junctions 4 to 7).
London extensions, 1966, 1967 and 1977 
The M1 was extended south from its original starting point at Junction 5 towards London in three stages. The first stage, opened in 1966, took the motorway south-east, parallel to the A41 to meet the A5 at junction 4 south of Elstree. The second phase continued east to Scratchwood (the London Gateway Service Area occupies the location of the missing junction 3 from where an unbuilt spur would have connected to the A1 at Stirling Corner to the north-east. The M1 then runs south alongside the Midland Main Line towards Hendon where it meets the A1 again at Junction 2 via a tightly curved flyover section. These flyovers connecting from the A1 were originally both for northbound traffic; the left one as the on-ramp to the M1, the right one going over the A1/A41 junction beneath to rejoin the A1 northbound.
Junction 2 is about 2.5 miles (4 km) south of the original Junction 3. Southbound traffic originally left the motorway via a slip road which passed under the A41/A1 Mill Hill Bypass and looped round to join it at Fiveways Interchange. This slip road is still visible to southbound traffic approximately 650 yards (590 m) before Junction 2 and was maintained until the early 2000s though not accessible to traffic. The northbound slip road from the A1 is now partially used as the entrance way to a business park but no longer reaches the northbound carriageway as it is cut off by the motorway continuing south.
The final section of the M1 was opened to Junction 1 at Staples Corner in 1977. There the motorway meets the North Circular Road (A406) at a grade separated junction and roundabout. Unrealised plans made in the 1960s would have seen the motorway continue through the junction on an elevated roadway to end at West Hampstead where it would have met the North Cross Route, the northern section of the London Motorway Box, a proposed ring of urban motorway around the central area. The layout of the Staples Corner junction was originally built in accordance with these plans although most of the London Ringways Plan had been cancelled by 1973. Around the same time the section between the M10 and Junction 5 was widened from the original two lanes to three.
On its completion, the M1 acted as a fast link road between London and Birmingham. It also provided a link to London Luton Airport for these regions, and its proximity to the site of the Milton Keynes new town (designated in 1967) meant that it was soon providing a vital transport link to another major area.
Recent developments 
In 2006 plans were developed to widen 91 miles (146 km) from Leicester through to Leeds (Junctions 21–42) which were subject to widespread road protests. The Transport Select Committee then claimed the Highways Agency had "lost budgetary control" and the National Audit Office was asked to investigate why the price of the project has risen from £3.7 billion to £5.1 billion in 2007. Plans were scaled back with widening to 4 lanes limited to the section from the M25 to Luton (Junctions 6a to 10) which was already in progress and from Nottingham and Mansfield (Junctions 25–28) with hard-shoulder running being proposed for other sections.
A 10-mile (16 km) section between the M25 and Luton (Junctions 6a and 10) was widened to dual 4-lanes and opened in 2009. This project included the construction of new parallel roads between Junctions 7 and 8 for local traffic, widening or replacement of eleven underbridges on one or both carriageways and replacing seven overbridges. The cost was £294 million. As part of the project a variable speed limit system (MIDAS) has been installed, much like the one used on the M25. Also, the M10 spur was reclassified as part of the A414 road.
Work to widen the 15-mile (24 km) section from Nottingham to Mansfield (J25-J28) to dual 4-lanes began in January 2008 and was completed in 2010 at a cost of £340 million. Average speed cameras which were installed initially only for the period of construction have proven to be so effective that they have been retained permanently on this section of the motorway.
Current developments 
M1 J10 to J13 improvement scheme 
Image showing location of M1 hard shoulder running as well as other nearby road developments
|Cost estimate (high)||£503 million|
|Cost estimate (low)||£326 million|
Hard shoulder running is being introduced on approximately 15 miles (24 km) of motorway between Junction 10, south of Luton, and Junction 13 where it joins with the A421. Modifications are also being made to Junctions 11 and 12. The scheme was announced in January 2009 and will cost between £326 million and £503 million and opening in 2013. This plan replaced earlier proposals to widen the section to four lanes and replace bridges crossing the motorway, including some considered to be of historical architectural value. The public inquiry was then delayed by four months in 2007 for further traffic modelling work to be undertaken. The widening scheme was abandoned after the estimated cost had escalated from £382 million to £601 million.
Proposed developments 
M1 J28–J31 managed motorways 
M1 J32–J35a managed motorways 
Provisional plans exist for a managed motorway scheme including dynamic hard shoulder running on the M1 motorway between Junctions 32 and 35a serving South Yorkshire and in particular the urban areas of Sheffield and Leeds was confirmed in November 2010.
M1 Junctions 39–42 managed motorways 
Provisional plans exist for a managed motorway scheme including dynamic hard shoulder running on the M1 motorway between Junctions 39 and 42 serving South Yorkshire and in particular the urban areas of Wakefield and Leeds was announced in November 2010 which includes a link to the M62 at Junction 42.
M1/M69 junction 
There are plans to widen the M1 to dual 4-lane or dual 5-lane between Junctions 21 and 21a and construct a new link road between the M1 and the M69 including a new road bridge to take southbound M1 traffic over the motorway to connect to the M69. During this work the Leicester Forest East services would be closed. Consultation took place in 2007 and a completion date of 2014 is suggested. However the Highway Agency separately suggests that scheme development will "recommence" in 2014/15 with a provisional programmed start of works 2017/18.
Other proposals 
A planned £201 million to £302 million upgrade to the overloaded Catthorpe Interchange between the M1 motorway, M6 motorway and A14 road close to Catthorpe was put on hold in June 2010. It was then 'shelved' as a result of the government spending review.
In addition to the above schemes, the Highways Agency also plans to add capacity and improve flows on the following sections of motorway in the longer term.
|M1 J21a – J23a||Hard shoulder running||after 2020|
|M1 J23a – J24a||Various works including hard shoulder running||after 2015|
|M1 J24 – J25||Hard shoulder running||after 2015|
Incidents and accidents 
- In March 1972, 200 vehicles crashed in thick fog resulting in the deaths of nine people on the M1 north of Luton.
- On 8 January 1989, forty-seven passengers died when a Boeing 737 crashed onto the embankment of the M1 whilst attempting an emergency landing at East Midlands Airport in Leicestershire.
- On 6 September 1997, large sections of the northbound carriageway were closed between London and Althorp, Northamptonshire to allow for the funeral procession of Diana, Princess of Wales. In an unprecedented event, police allowed pedestrians onto the normally busy northbound carriageway almost the entire length of the route to pay their respects.
- In 2002, a section of the M1 near Milton Keynes was cleared using mobile police roadblocks to allow for filming of the movie 28 Days Later.
- An 18-mile (29 km) stretch of the motorway was closed entirely on the morning of 11 December 2005, following a major explosion and fire at the Buncefield Oil Depot which is less than half a mile (800 m) from the M1.
- In June 2007, the section of M1 between Junctions 32 and 36 was closed for a number of days after the Ulley Reservoir developed cracks after being deluged in the June 2007 United Kingdom floods.
- Part of the motorway close to Tinsley Viaduct was closed to allow safe demolition of the Tinsley cooling towers in the early hours of 24 August 2008. the M1 remaining closed for much of the day until the stability of the viaduct was confirmed.
- On 15 April 2011, a seven-mile stretch of the road was closed between Junctions 1 and 4 due to a fire at a scrapyard underneath the motorway. The road was fully re-opened early on 21 April 2011 with a 50 mph speed limit in force whilst repair work continued to an elevated section.
|M1 motorway junctions|
|mile||km||Southbound exits (B carriageway)||Junction||Northbound exits (A carriageway)||Coordinates|
|7.0||11.3||North Circular (West), Brent Cross A406||J1
|Start of motorway|
|North Circular (East) A406
The City A1
|12.0||19.3||London Gateway services||Services||London Gateway services|
|Edgware A41||J4||No access|
|J5||Aylesbury, Watford A41|
|North Watford A405||J6||St Albans, Heathrow Airport, Harlow A405|
|Heathrow, Gatwick, M40, M4, M3,
Stansted Airport M11, M20, M25
|St Albans, Hatfield A414||J7||No access|
|Hemel Hempstead||J8||Hemel Hempstead A414|
|Redbourn A5183||J9||Dunstable A5, Redbourn A5183|
|Luton Airport A1081||J10||Luton Airport A1081|
|Luton, Dunstable A505||J11||Luton, Dunstable A505|
|38.9||62.6||Toddington services||Services||Toddington services|
|Flitwick, Houghton Regis A5120||J12||Flitwick, Woburn A5120|
|Milton Keynes (South), Bedford A421
Woburn, Ampthill A507
|J13||Milton Keynes (South), Bedford A421
|Milton Keynes (Central), Newport Pagnell A509||J14||Milton Keynes (Central), Newport Pagnell A509|
|53.7||86.5||Newport Pagnell services||Services||Newport Pagnell services|
Milton Keynes (North) A508
Milton Keynes (North) A508
|Northampton, Oxford A43 (M40)
|Northampton, Oxford A43 (M40)
|Northampton A4500||J16||Daventry A45|
|75.1||120.8||Watford Gap services||Services||Watford Gap services|
|No access||J17||Coventry M45|
|Daventry, DIRFT A428||J18||Hinckley A5
|The North West M6
Felixstowe, Corby, Kettering A14
|The North West M6|
|Lutterworth, Rugby A4303||J20||Lutterworth A4303
Market Harborough A4304
|Coventry, Birmingham M69
|97.7||157.2||Leicester Forest East services||Services||Leicester Forest East services|
|No access||J21a||Leicester, Newark A46|
|Leicester A50, Coalville A511||J22||Coalville, Ashby-de-la-Zouch A511|
|Loughborough, Ashby-de-la-Zouch A512||J23||Loughborough, Ashby-de-la-Zouch A512|
|The South West, Tamworth, Birmingham,
Ashby-de-la-Zouch, A42 (M42)
|The South West, Tamworth, Birmingham A42 (M42)
East Midlands Airport A453
Donington Park services
East Midlands Airport A453
Donington Park services
Nottingham South/Centre A453
|Stoke A50, Derby A6||J24a||No access|
|Nottingham South, Derby A52||J25||Derby, Nottingham West/Centre A52|
|124.1||199.8||Trowell services||Services||Trowell services|
|Nottingham, Ilkeston A610||J26||Ripley, Eastwood, Nottingham North/Centre A610|
|Heanor, Hucknall A608||J27||Mansfield A608|
|Matlock A38||J28||Mansfield, Matlock A38|
|138.3||222.5||Tibshelf services||Services||Tibshelf services|
|Mansfield, Matlock A617||J29||Chesterfield A617|
|Markham Vale A6192
|J29a||Markham Vale A6192
|Chesterfield, Newark A616||J30||Sheffield, Worksop A6135|
|151.3||243.5||Woodall services||Services||Woodall services|
|Worksop A57||J31||Sheffield (SE) A57|
|The North, Doncaster, Hull M18||J32
|The North, Doncaster, Hull M18|
|Sheffield (centre), Rotherham, A630||J33||Sheffield (centre), Rotherham, A630|
|Meadowhall, Rotherham A6109:||J34||Meadowhall, Sheffield, Rotherham A6178:|
|Rotherham A629||J35||Rotherham A629|
|No access||J35a||Manchester A616|
|Sheffield A61||J36||Barnsley A61|
|Barnsley, Manchester A628||J37||Barnsley, Manchester A628|
|Huddersfield, Barnsley A637||J38||Huddersfield, Barnsley A637|
|178.5||287.2||Woolley Edge services||Services||Woolley Edge services|
|Denby Dale A636||J39||Denby Dale A636|
|Wakefield, Dewsbury A638||J40||Wakefield, Dewsbury, Batley A638|
|Wakefield, Morley A650||J41||Wakefield, Morley A650|
|Hull, Manchester M62||J42
|Hull, Manchester, Bradford, Liverpool M62|
|No access||J43||Leeds M621|
|Leeds A639||J44||Leeds A639|
|Leeds A63||J45||Leeds A63|
|Leeds A6120||J46||Leeds A6120
The SOUTH (A1)
|197.7||318.1||Start of motorway||A1(M), J43
|The North, Wetherby, A1(M), Newcastle|
List of sights visible from the M1 
|This section does not cite any references or sources. (March 2013)|
The M1 is the only UK motorway to use transition curves (spirals) to connect straights to curves (circles) as is usual with railways. This was found to be unnecessary and curves connect directly to straights (or curves of a different radius) on later motorways.
- Midland Main Line and Thameslink (between London Gateway services and Junction 1, and also between Junctions 11 and 12)
- Hertfordshire Oil Storage Terminal (Buncefield) (after Junction 8 northbound)
- The Point, Xscape and Milton Keynes Theatre, Milton Keynes (between Junction 13 to 14)
- Express Lift Tower in Northampton (between Junctions 14 and 16)
- West Coast Main Line (runs alongside between Junctions 16 and 18)
- Rugby VLF transmitter (between Junctions 18 and 19)
- East Midlands Airport (between Junctions 23A and 24)
- Ratcliffe-on-Soar Power Station (between Junctions 24 and 25)
- Sutton Scarsdale Hall (on southern approach to Junction 29 – visible only to southbound traffic)
- Hardwick Hall (between Junctions 28 and 29)
- Bolsover Castle (between Junctions 29 and 30)
- Meadowhall Shopping Centre (Sheffield, near Junction 34)
- Former site of the Blackburn Meadows Power Station (Sheffield, near Junction 34, opposite Meadowhall)
- Wentworth Castle (between Junctions 36 and 37)
- Barnsley Town Hall (visible travelling southbound between Junctions 37 and 38)
- Emley Moor mast (between Junctions 37 and 38, again between Junctions 39 and 40 and also between Junctions 45 and 46)
- Ferrybridge Power Station (Leeds, at Junction 42 slip road, north and southbound)
- Bridgewater Place (Leeds, between Junctions 43 and 45)
- Temple Newsam (Leeds, between Junctions 44 and 45)
See also 
- "Motorway archive". The Motorway Archive. Institute of Highways and Transportation. Retrieved 20 January 2008.
- "Key facts about England's motorways and trunk roads". Highways Agency. Retrieved 20 January 2008.
- Bridle, Ron; Baldwin, Peter; Baldwin, Robert (2004). The motorway achievement volume 1. p. 57. ISBN 978-0-7277-3196-8.
- Chris Marshall. "Motorway Database – M1". CBRD. Retrieved 31 October 2009.
- "Tri-tandem roller 45655 of 1930". The Robey Trust.
- "The Slab". Retrieved 20 January 2008.
- "list of material held by Northamptonshire CC". Motorway archive. Retrieved 20 January 2008.
- "News: Motorway lighting". Autocar. 137 nbr 3978: 19. 13 July 1972.
- "HA press release M1 J10-13 lighting". Nds.coi.gov.uk. Retrieved 31 December 2011.
- "Motorweek: More M1 barriers". Motor. nbr 3677: 40. 31 March 1973.
- "Protesters unfurl anti-M1 banners". BBC News. 30 October 2006. Retrieved 12 May 2010.
- Jowit, Juliette (6 May 2007). "M1 widening to cost £21m per mile". The Observer (London). Retrieved 28 January 2008.
- "M1 Jct 6a to 10 Widening". Highways Agency.
- "9 Mar 2009 : Column 10W—continued". Hansard.
- "M1 widening J25-28: work to reduce congestion and improve safety starts in earnest". Highways Agency. Retrieved 20 January 2008.
- "£340m M1 contract to MVM consortium".
- "M1 works speed cameras will stay". BBC News. 3 January 2010. "Temporary cameras installed for widening road works between Junctions 25 and 28 have proved so effective they will stay, it has been confirmed."
- "M1 Jct 10 to 13 Improvements". Highways Agency.
- "Public exhibitions announced for M1 j10 to j13 improvement scheme". Highways Agency.
- "Environmental Effects – Cultural Heritage". Highways Agency. Retrieved 10 November 2008.
- "Note of the Pre-Inquiry Meeting" (PDF). Highways Agency. Retrieved 10 November 2008.
- "A421 Bedford to M1 Junction 13". Highways Agency.
- "M1 J28-31 Managed Motorways". Highways Agency.
- "Transport Secretary gives the go-ahead to 24 New Schemes and announces over £600M of further funding". Department for Transport.
- "M1/M69 Public Consultation Information – The new solution". Highways Agency. Retrieved 7 January 2010.
- "M1/M69 Public Consultation Information – what happens now". Highways Agency. Retrieved 7 January 2010.
- "M1 Junctions 21 to 31 Improvements". Highways Agency. Retrieved 9 July 2012.
- "M1 Jct 19". Retrieved 28 February 2008.
- "M1 Junction 19 news".
- "Catthorpe Interchange motorway access scheme is shelved". BBC News. 18 June 2010. Retrieved 18 November 2010.
- "Bedfordshire Local Transport Plan 2006/07 – 2010/11 – Major projects". Bedfordshire County Council. Retrieved 17 August 2011.
- "All change at 10A?". BBC Local – Beds, Herts and Bucks. 9 September 2009. Retrieved 21 May 2011.
- "A5-M1 Link (Dunstable Northern Bypass)". Highways Agency. Retrieved 12 November 2008.
- "Death toll on British roads". Daily Mail. "Thick fog was a factor in the deaths of nine people and injuries to 51 others in a massive 200-vehicle crash on the M1 north of Luton, Beds, in March 1972."
- "Blast demolishes landmark towers". BBC News (BBC News). 24 August 2008. Retrieved 24 August 2008.
- "M1 is fully reopened after Mill Hill scrapyard fire". BBC News (BBC News). 26 April 2011. Retrieved 26 April 2011.
- Book on history of design, construction and use of M1 in late 1950s and 1960s 
- CBRD Motorway Database – M1
- Highways Agency
- The Motorway Archive:
- UK-Roads.org.uk – Images of M1
- The London – Yorkshire Motorway – History of the construction of the first section of M1
- BBC website The Backbone of Britain contains link to a video of 2'42" in length