M4 motorway
motorway in the United Kingdom / From Wikipedia, the free encyclopedia
The M4 is a long motorway in the United Kingdom. It goes from London to South Wales. It also passes Bristol. It was first called the London–South Wales Motorway.
Quick Facts Route information, Length ...
M4 | ||||
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Route information | ||||
Part of | ||||
Maintained by Highways England South Wales Trunk Road Agent | ||||
Length | 189 mi[1] (304 km) | |||
Existed | 1963–present | |||
History | Opened: 1959 (Chiswick Flyover), 1961 (as A4(M)), 1963, 1966 (as A48(M)) Completed: 1996 | |||
Major junctions | ||||
East end | Chiswick 51.4897°N 0.2781°W / 51.4897; -0.2781 (M4 motorway (eastern end)) | |||
Major intersections | J4b → M25 motorway / J8/9 → A308(M) motorway/A404(M) motorway J10 → A329(M) motorway J19 → M32 motorway J20 → M5 motorway J21 → M48 motorway J22 → M49 motorway J23 → M48 motorway J29 → A48(M) motorway | |||
To | Pont Abraham 51.7451°N 4.0651°W / 51.7451; -4.0651 (M4 motorway (western end)) | |||
Location | ||||
Country | United Kingdom | |||
Counties | Greater London, Berkshire, Wiltshire, Gloucestershire, Monmouthshire, Newport, Cardiff, Vale of Glamorgan, Rhondda Cynon Taf, Bridgend, Neath Port Talbot, Swansea, Carmarthenshire | |||
Primary destinations | London London Heathrow Airport Slough Maidenhead Reading Newbury Swindon Bristol Newport Cardiff Bridgend Port Talbot Neath Swansea | |||
Road network | ||||
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