_motorway&sq=&lang=&file=File:UK-Motorway-A48_(M).svg) | ||||
|---|---|---|---|---|
| Route information | ||||
| Maintained by South Wales Trunk Road Agent | ||||
| Length | 2.0 mi (3.2 km) | |||
| Existed | 1977–present | |||
| Major junctions | ||||
| Northeast end | Castleton, Newport | |||
_motorway&sq=&lang=&file=File:Junction_29.svg){kind=small} _motorway&sq=&lang=&file=File:UK-Motorway-M4.svg){kind=small} J29 → M4 motorway | ||||
| Southwest end | St Mellons, Cardiff | |||
| Location | ||||
| Country | United Kingdom | |||
| Counties | Newport, Cardiff | |||
| Primary destinations | Cardiff | |||
| Road network | ||||
| ||||
_motorway&sq=&lang=&file=File:A48_(M),_looking_east_near_Castleton.jpg)
The A48(M) motorway in Wales links Cardiff with Newport. It is a 2-mile-long (3 km) spur of the M4 motorway. 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] The M4 was extended west from junction 29 in 1980.[2]
- ^ "M4 in Wales". The Motorway Archive. Archived from the original on 14 March 2007.
- ^ "A48(M)". Roads. Retrieved 31 August 2020.