A48(M) motorway

A48(M)
Route information
Maintained by South Wales Trunk Road Agency
Length	2.0 mi (3.2 km)
Existed	1977–present
Major junctions
East end	Castleton, Newport
Major intersections	J29 → M4 motorway
West end	St Mellons, Cardiff
Location
Country	United Kingdom
Primary destinations	Cardiff
Road network
Roads in the United Kingdom Motorways A and B road zones

The A48(M) motorway in Wales links Cardiff with Newport. The A48(M) has no junctions and opened in 1977.^[1][2]

Junctions

A48(M) motorway
Eastbound exits	Junction	Westbound exits
M4 London	J29 M4 (Castleton)	Start of motorway
Start of motorway Newport	J29A (St Mellons)	A48 Cardiff

References

1. Pathetic Motorways – A48(M)
2. The Motorway Archive – M4 Dates Archived 14 March 2007 at the Wayback Machine

Other websites

• CBRD Motorway Database – A48(M)
• Pathetic Motorways – A48(M)