List of motorways in the United Kingdom

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UK motorways in 2022
  M-designated motorway
  Upgraded A-road designation

This list of motorways in the United Kingdom is a complete list of motorways in the United Kingdom. Note that the numbering scheme used for Great Britain does not include roads in Northern Ireland, which are allocated numbers on an ad hoc basis.[1]

Great Britain

M-designated motorways

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
M1 193.5 311.4 Staples Corner, London (A406) Hook Moor, Leeds (A1(M) (Great Britain)) 01959-01-011959 current The first long-distance motorway in the country to be built.[2]. Part of E 13.
M2 25.7 41.4 Strood Faversham 01963-01-011963 current A motorway bypassing the Medway Towns.
M3 58.6 94.3 Sunbury-on-Thames Chilworth 01971-01-011971 current A motorway linking London to Southampton. Part of E 5
M4 189 304 Chiswick Pont Abraham 01963-01-011963 current A motorway linking London to South Wales. Part of E 30
M4 14 23 Magor Castleton — 02019-01-012019 Proposed bypass south of Newport, relieving the M4 similar to the M6 Toll.
M5 162.9 262.2 West Bromwich Exminster 01962-01-011962 current A motorway linking Birmingham to Exeter.
M6 232.2 373.7 Catthorpe Gretna 01958-01-011958 current A motorway linking the West Midlands to North West England and Scotland. Continues as A74(M). The first and longest motorway in the country to be built.[2] Part of E 5, E 18, E 22 and E 24
M6 Toll 27 43 Coleshill Cannock 02003-01-012003 current A tolled bypass of the M6 in the West Midlands. Part of E 5
M8 60.3 97.0 Sighthill Langbank 01965-01-011965 current A motorway linking Edinburgh to Glasgow. Part of E 5, E 15 and E 16
M9 33.0 53.1 Newbridge Dunblane 01968-01-011968 current A motorway linking Edinburgh to Stirling. Part of E 15
M10 2.8 4.5 Hemel Hempstead (M1) St Albans 01959-01-011959 02009-01-012009 A spur from the M1 to St Albans. Now part of the A414.
M11 55.0 88.5 South Woodford Girton 01975-01-011975 current A motorway linking London to Cambridge. Part of E 15
M12 57 92 South Woodford Maplin Sands — — Proposal for motorway to bypass the A12 near London. At one point the proposal was to reach the proposed London Airport east of Southend.
File:UK M15 jct.svg M15 1 1.6 South Woodford Redbridge 01977-01-011977 01987-01-011987 Number allocated for Ringway 2, section between junctions 3 and 4 built and opened as motorway due to inescapably leading to M11 until A406 opened.
File:UK M16 jct.svg M16 3 4.8 South Mimms Potters Bar 01975-01-011975 01975-01-011975 Number allocated for Ringway 3. Short section opened before plans were reworked to merge Ringway 3 and Ringway 4 into a single M25.
M18 26.5 42.6 Thurcroft (M1) Rawcliffe (M62) 01967-01-011967 current A motorway linking Rotherham to Goole as part of a Sheffield to Hull route. Part of E 13 and E 22
M20 50.6 81.4 Swanley Folkestone 01971-01-011971 current A motorway linking London to Folkestone and the Channel Tunnel. Part of E 15
M23 15.9 25.6 Hooley Pease Pottage 01974-01-011974 current A motorway linking London to Gatwick Airport and Crawley.
M25 117 188 Dartford (Dartford Crossing southern approach) Thurrock (Dartford Crossing northern approach) 01975-01-011975 current A ring road of London numbered clockwise from Dartford. Part of E 15 and E 30
M26 9.9 15.9 Chevening Addington 01980-01-011980 current A motorway linking the M25 to the M20.
M27 25.0 40.2 Cadnam Portsmouth 01972-01-011972 current South Coast Motorway bypassing Southampton and Portsmouth. Part of E 5
File:UK M31 jct.svg M31 22.0 35.4 Wisley Reading — — Proposal for motorway to bypass the congested Heathrow section of the M25 for traffic heading between east of the A3 junction and the M3 and M4 corridors.
M32 4.4 7.1 Hambrook St Pauls 01966-01-011966 current A spur from the M4 into central Bristol.
M40 89.0 143.2 Denham Tanworth in Arden 01967-01-011967 current A motorway linking London to Birmingham. Part of E 5
M41 — — — — — 02000-01-012000 The former number for the West Cross Route, now part of the A3220.[3]
M42 40.0 64.4 Catshill Appleby Magna 01976-01-011976 current A quarter-orbital motorway bypassing Birmingham to the south and east, continuing anticlockwise and then northeast as A42 to the M1 at Kegworth. Part of E 5
M45 7.9 12.7 Watford Gap Thurlaston 01959-01-011959 current A spur from the M1 south of Rugby.
M48 12 19 Awkley Undy 01966-01-011966 current The original route over the Severn Bridge bypassed by the M4's new route between Bristol and Caldicot.
M49 5.0 8.0 Redwick Lawrence Weston 01996-01-011996 current A western bypass of Bristol avoiding not only Cribbs Causeway but also Almondsbury, which heads northwest to the M4 and southeast to the M5.
M50 21.6 34.8 Strensham Ross-on-Wye 01960-01-011960 current A motorway between the M5 and Ross-on-Wye forming part of a Midlands-South Wales route.
M53 18.9 30.4 Bidston Hoole Village 01972-01-011972 current A motorway linking Birkenhead (and Liverpool via Kingsway Tunnel) to Chester.
M54 23.0 37.0 Essington Wellington 01975-01-011975 current A motorway linking Wolverhampton to Telford.
M55 12.2 19.6 Fulwood Blackpool 01958-01-011958 current A motorway linking Preston to Blackpool.
M56 33.3 53.6 Cheadle Mollington 01971-01-011971 current A motorway linking Manchester to Chester. Part of E 22
M57 10 16 Huyton Switch Island, Aintree 01972-01-011972 current An eastern bypass of Liverpool linking the M62 to Maghull. Part of E 20
M58 12 19 Switch Island, Aintree Orrell 01977-01-011977 current A motorway linking Liverpool to Wigan.
M60 36 58 Manchester Outer Ring Road 01960-01-011960 current A ring road of Manchester numbered clockwise from Stockport. Part of E 20 and E 22
M61 20.0 32.2 Worsley Bamber Bridge 01969-01-011969 current A motorway linking Manchester to Preston.
M62 100 160 Liverpool North Cave 01960-01-011960 current A motorway linking Liverpool to Hull. Part of E 20 and E 22
File:UK M63 jct.svg M63 15 24 Worsley Stockport 01960-01-011960 current Manchester eastern and southern bypasses. Became part of M60.
File:UK M64 jct.svg M64 40 64 Stoke on Trent Kegworth — 01976-01-011976 Proposal for motorway between the M6 at Stoke and the M1 in the East Midlands to link the North West to the southern M1 corridor without needing to go via the West Midlands urban area.
M65 25.8 41.5 Bamber Bridge Colne 01981-01-011981 current A motorway linking Preston to Burnley.
M66 8.0 12.9 Edenfield Simister Island 01975-01-011975 current A motorway bypassing Bury.
M67 5.0 8.0 Denton Island Hattersley 01978-01-011978 current A motorway linking Manchester to Hadfield.
M69 15.7 25.3 Coventry Leicester 01976-01-011976 current A motorway linking Coventry to Leicester.
M73 7.0 11.3 Uddingston Mollinsburn 01969-01-011969 current An eastern bypass of Glasgow.
M74 40 64 Tradeston Abington 01966-01-011966 current A motorway linking Glasgow towards North West England. Continues as the A74(M) south of Abington. Part of E 5 and E 18
M77 20.0 32.2 Kinning Park Fenwick 01977-01-011977 current A motorway linking Glasgow to Kilmarnock.
M80 25.0 40.2 Blochairn Bannockburn 01974-01-011974 current A southwest-northeast motorway linking Glasgow to Stirling.
M90 36.0 57.9 Junction 1a of the M9 Perth 01964-01-011964 current A south-north motorway linking Edinburgh to Perth. Part of E 15
M180 25.0 40.2 Stainforth Elsham 01977-01-011977 current A motorway linking Thorne to Grimsby. Continues as the A180 after the exit for the Humber Bridge. Part of E 22
M181 2.0 3.2 East Butterwick Scunthorpe 01978-01-011978 current A spur of the M180 leading to Scunthorpe.
M271 2.3 3.7 Totton Upton 01975-01-011975 current A spur of the M27 bypassing Southampton to the west. Part of E 5
M275 2.0 3.2 Paulsgrove Portsmouth 01976-01-011976 current A spur from the M27 to central Portsmouth and Cosham.
M602 4.0 6.4 Worsley Ordsall, Salford 01971-01-011971 current A motorway linking the M62 to Salford.
M606 3.0 4.8 Cleckheaton Bradford 01972-01-011972 current A spur from the M62 to Bradford.
M621 7.7 12.4 Gildersome Rothwell 01972-01-011972 current Two conjoined spurs linking Leeds to the M1 and M62.
M876 8.0 12.9 Dennyloanhead Bowtrees near Kincardine Bridge 01980-01-011980 current A motorway linking Bonnybridge to Kincardine.
M898 0.5 0.80 Erskine Erskine near Erskine Bridge 01975-01-011975 current A spur from the M8 leading to Erskine Bridge.

Upgraded A-road designations

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
A1(M) 24 39 South Mimms Stotfold 01962-01-011962 current
A1(M) 13 21 Alconbury Orton Southgate 01998-01-011998 current
A1(M) 15.2 24.5 Blyth Red House, near Skellow 01961-01-011961 current western bypass of Doncaster
A1(M) 93.8 151.0 Darrington Birtley 01965-01-011965 current
A3(M) 5.0 8.0 Horndean Bedhampton 01979-01-011979 current A motorway linking the A3 to the A27 near Portsmouth.
A8(M) 02 3.2 Baillieston Roundabout Swinton Roundabout 02016-01-012016 current A spur from the M8 and M73 to Ballieston.
A38(M) 2.0 3.2 Gravelly Hill Birmingham city centre 01972-01-011972 current A spur from the M6 to central Birmingham.
A40(M) — — — — — 02000-01-012000 The former number for the Westway, now part of the A40.[3]
A48(M) 2.0 3.2 Castleton, Newport Castleton, Newport 01977-01-011977 current A spur from the M4 towards central Cardiff.
A57(M) 2.0 3.2 — — — — Forms part of a ring road of Manchester. Also known as the Mancunian Way.
A58(M) 2.0 3.2 — — — — Forms the western part of the Leeds inner ring road.
A64(M) 0.5 0.80 — — — — Forms the eastern part of the Leeds inner ring road.
A66(M) 2.0 3.2 — — — — A spur from the A1(M) to the A66 south of Darlington.
A74(M) 45 72 Abington Longtown 01991-01-011991 current A motorway linking the M74 to North West England. Continues as the M6.
A102(M) — — Hackney Wick Old Ford — 02000-01-012000 The former number for the East Cross Route. Now part of the A12.[3]
A102(M) — — Greenwich Peninsula Sun in the Sands roundabout — 02000-01-012000 The former number for the East Cross Route. Now part of the A102.[3]
A167(M) 1.1 1.8 Jesmond Tyne Bridge north end 01975-01-011975 current An urban motorway in Newcastle-Upon-Tyne.
A194(M) 4.0 6.4 Washington — 01975-01-011975 current A motorway linking the A1(M) to the Tyne Tunnel.
A308(M) 0.6 0.97 M4 Junction 8/9 Maidenhead (Braywick) 01971-01-011971 current A spur from the M4 south of Maidenhead.
A329(M) 4.0 6.4 Bracknell Winnersh 01972-01-011972 current A motorway linking Bracknell and Reading to the M4. Was incorporated into unrealised M31 plans
A404(M) 2.4 3.9 M4 Junction 8/9 Maidenhead (The Thicket) 01990-01-011990 current Forms part of the original Maidenhead bypass and is on its forth number (A4(M), M4, A423(M), A404(M)). Linked up in 1990 with the Marlow bypass to form a new High Wycombe to Maidenhead trunk road.
File:UK A423(M) jct.svg A423(M) 2.4 3.9 M4 Junction 8/9 Maidenhead (The Thicket) 01971-01-011971 01990-01-011990 Forms part of the original Maidenhead bypass.
A601(M) 1 1.6 A6 north of Carnforth B6254 between Over Kellet and Carnforth 01960-01-011960 02023-01-012023 A spur that ran from the M6 to Carnforth and Over Kellet. Now part of the A6070 and B6601.[4][5]
A627(M) 3.5 5.6 Rochdale Chadderton 01972-01-011972 current A motorway linking Rochdale to Oldham, and both towns to the M62.
A823(M) 1 1.6 Inverkeithing Rosyth 01964-01-011964 current A spur from the M90 to Dunfermline.
A1077(M) 0.8 1.3 — — 02021-01-012021 current A former part of the M181 serving Scunthorpe. Was detrunked and will be downgraded when housing development built
A6144(M) 1.2 1.9 Urmston Carrington 01987-01-011987 02006-01-012006 A spur that ran from the M60 to Carrington. It was unique for being single carriageway throughout.

Northern Ireland

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
M1 38.0 61.2 Belfast Dungannon 01962-01-011962 current Via Lisburn and Craigavon, in the direction of Sligo, Enniskillen and Omagh. The motorway forms the main Dublin-Belfast route until Sprucefield.
M2 28 45 Belfast Ballymena 01966-01-011966 current In two sections built at different stages, one linking Belfast to Antrim, and the other bypassing Ballymena. The section in between was planned, but never built. Main route out of Belfast to Derry, Coleraine and Larne.
M3 0.8 1.3 M2 in north Belfast A2 Sydenham Bypass in the east of the city 01995-01-011995 current Lagan Bridge
M5 1.4 2.3 M2 in north Belfast Newtownabbey 01980-01-011980 current Forms part of the Belfast-Carrickfergus route.
M12 1.5 2.4 M1 Craigavon 01970-01-011970 current A spur from the M1 near Derrymacash to the centre of Craigavon.
M22 5.6 9.0 Antrim Randalstown 01971-01-011971 current Linking the M2 at Antrim to Randalstown. Forms part of the main road between Belfast and Derry.
A8(M) 1.0 1.6 M2 Ballyhenry 01966-01-011966 current A spur from the M2 at Sandyknowes near Glengormley to Corr's Corner Roadabout on the A8 north-west of Newtownabbey. Forms part of the Belfast-Larne route.

See also

Notes

  1. ^ "Northern Ireland Assembly – WRITTEN ANSWERS Friday 15 December 2000". Archived from the original on 23 December 2008. Retrieved 2007-11-19.
  2. ^ a b "Ten speedy facts about motorways". Archived from the original on 28 November 2021. Retrieved 26 May 2024.
  3. ^ a b c d "The GLA Roads Designation Order 2000". Archived from the original on 20 December 2022. Retrieved 26 May 2024.
  4. ^ "The Lancashire County Council (A601(M) Partial Revocation) Scheme 2022 Confirmation Instrument 2023". Archived from the original on 19 August 2023. Retrieved 27 May 2024.
  5. ^ "The Lancashire County Council (A601(M) Partial Revocation) Scheme 2019 Confirmation Instrument 2020". Archived from the original on 19 August 2023. Retrieved 26 May 2024.
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