A48(M)_motorway

A48(M) motorway

A48(M) motorway

Road in Wales

The A48(M) motorway in Wales links Cardiff with Newport. It is a 2-mile (3.2 km) long M4 spur. At St Mellons, it runs continuously into the dual-carriageway A48, which also has (albeit narrow) hard shoulders. The A48(M) has no other junctions and opened in 1977.[1][2] The M4 was extended west or southwest from junction 29 in 1980.[3]

Quick Facts Route information, Length ...
North-Eastbound heading towards M4 junction 29


A48(M) motorway
North-Eastbound exits Junction South-Westbound exits
M4
London		 J29 M4 (Castleton) Start of motorway
Entering Gwent Entering South Glamorgan
Start of motorway
Newport		 J29A (St Mellons) A48 Cardiff

Previous A48(M) motorways

The 6-mile (9.7 km) Port Talbot bypass which opened in 1966,[2] was numbered A48(M) before its incorporation into the westward extension of the M4 in the 1970s.[4] Some maps show the Morriston bypass section of the M4 as also having been originally numbered A48(M), although whether this number was ever used on the ground has been questioned.[5]

References

  1. [1]
    "A48(M) Cardiff Spur". Pathetic Motorways.
  2. [2]
    "M4 in Wales". The Motorway Archive. Archived from the original on 14 March 2007.
  3. [3]
    "A48(M)". Roads. Retrieved 31 August 2020.
  4. [4]
    "A48(M) Port Talbot Bypass". Pathetic Motorways.
  5. [5]
    "A48(M) Morriston Bypass". Pathetic Motorways.
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