A48(M) motorway

From Wikipedia, the free encyclopedia

A48(M) motorway
Image:UK motorway A48(M).PNG
Length	2 miles (3.2 km)
Direction	East - West
Start	Castleton, Newport
Primary destinations	Cardiff
End	St Mellons
Construction dates	1977 - 1977
Motorways joined	29 - Image:UK motorway M4.PNG M4 motorway

The A48(M) is a motorway in Wales between Cardiff & Newport. It is a spur off the M4 towards Cardiff. It is 2 miles (3 km) long and is a 2-lane motorway throughout its length. At St Mellons it runs continuously into a further 6 miles of the dual-carriageway A48, which also features (albeit narrow) hard shoulders^[1].

It opened in 1977^[2], originally as an ending for the M4. The M4 was subsequently extended from junction 29 in 1980^[2] and this section of road was renumbered A48(M). It has been suggested that its continuation westwards was projected to be from St Mellons, as maps from the period show^[specify].

1 Junctions
2 Other A48(M)s
3 Trivia
4 See also
5 References
6 External links

[edit] Junctions

A48(M) Motorway
Eastbound exits	Junction	Westbound exits
M4 London, Bristol	J29 M4 (Castleton)	Start of Motorway Exit to M4 (West)
Start of Motorway A48 Newport	J29A (St Mellons)	No Access Exit to A48 Cardiff

[edit] Other A48(M)s

A 6 mile motorway, the Port Talbot bypass was opened in 1967^[2] had also formerly been numbered A48(M) before incorporation into the M4's westward extension in the 1970s^[3].
Another A48(M) is shown on some maps as the Morriston bypass, but its existence has been controversial^[4].

[edit] Trivia

Image:Broom icon.svg

Trivia sections are discouraged under Wikipedia guidelines.
The article could be improved by integrating relevant items and removing inappropriate ones.

There is an abandoned carrigeway at M4 Junction 29, whose existence has not been definitively explained^[5]^[1].
The A48(M) has the unusual feature that it has no junction options: at both ends it just leads into limited-access junctions.
It is also the only motorway to be entirely in Wales, as the two other Welsh motorways both cross into England.

[edit] See also

[edit] References

[edit] External links

v • d • e

Motorways in the United Kingdom Image:UK motorway symbol.svg

Great Britain

M1 • M2 • M3 • M4 • M5 • M6 • M6 Toll • M8 • M9 • M10 • M11 • M18 • M20 • M23 • M25 • M26 • M27 • M32 • M40 • M42 • M45 • M48 • M49
M50 • M53 • M54 • M55 • M56 • M57 • M58 • M60 • M61 • M62 • M65 • M66 • M67 • M69 • M73 • M74 • M77 • M80 • M90
M180 • M181 • M271 • M275 • M602 • M606 • M621 • M876 • M898
A1(M) • A3(M) • A38(M) • A48(M) • A57(M) • A58(M) • A64(M) • A66(M) • A74(M) • A167(M) • A194(M)
A308(M) • A329(M) • A404(M) • A601(M) • A627(M) • A823(M)