Maintained by National Highways (England) and the South Wales Trunk Road Agent
Length
13 mi (21 km)
Existed
1966–present
Major junctions
East end
Awkley
Major intersections
J21 → M4 motorway J23 → M4 motorway
West end
Undy
Location
Country
United Kingdom
Primary destinations
Chepstow
Road network
Roads in the United Kingdom
Motorways
A and B road zones
← M45
→ M49
The M48 is a 13-mile (21 km) long motorway in Great Britain, which crosses the Severn near Chepstow, Monmouthshire, linking England with Wales via the Severn Bridge. This road used to be the M4, and as a result is anomalously numbered: as it lies to the north of the M4 and to the west of the M5, it is in the Motorway Zone 5.[1][2] The M4, M48 and the A48(M) motorway are the only motorways in Wales.[3]
^"Motorway Database – M48". CBRD. Retrieved 26 October 2007.
^Steven Jukes. "Pathetic Motorways". Pathetic.org.uk. Retrieved 28 November 2012.
^"Roads in Wales". Traffig Cymru/Traffic Wales. Retrieved 10 September 2023.
The M48 is a 13-mile (21 km) long motorway in Great Britain, which crosses the Severn near Chepstow, Monmouthshire, linking England with Wales via the...
MIM-72A/M48 Chaparral, an American self-propelled surface-to-air missile system M-48 (Michigan highway), a state highway in Michigan M48motorway, a motorway...
services in Carmarthenshire. The M4 is the only motorway in Wales apart from its two spurs: the A48(M) and the M48. The major towns and cities along the route—a...
(rounded to the nearest 100) at the 2021 census. It is served by the M48motorway, and its accessibility to the cities of Bristol, Newport and Cardiff...
Severn View services, formerly Aust Services is a motorway service station on the M48motorway near the village of Aust, northwest of Bristol, in South...
estuary, close to the eastern end of the Severn Bridge which carries the M48motorway. The village has a chapel, a church and a public house. There is a large...
the River Wye begins, both bridges carrying the M48motorway between England and Wales though the motorway is not directly accessible from the village. The...
This list of motorways in the United Kingdom is a complete list of motorways in the United Kingdom. Note that the numbering scheme used for Great Britain...
opening of the Prince of Wales bridge, and the high costs to improve the M48 to motorway standards for the decreased amounts of traffic it handles. Reclassification...
residents and tourists, and now provides access to the Severn Bridge on the M48motorway. The A466 is about 30 miles (48 km) long and runs through the counties...
The M6 motorway is the longest motorway in the United Kingdom. It is located entirely within England, running for just over 230 miles (370 km) from the...
The M1 motorway connects London to Leeds, where it joins the A1(M) near Aberford, to connect to Newcastle. It was the first inter-urban motorway to be...
A smart motorway (formerly managed motorway and active traffic management), also known in Scotland as an intelligent transport system, is a section of...
The village is close to the A403 road that runs from junction 1 of the M48motorway at Aust to the docks at Avonmouth. Severn Beach with substantial development...
576 miles (2,536 km) are trunk roads (including 135 miles (217 km) of motorways and as of 2015 350 miles (560 km) of dual carriageway). Historically,...
Road (A494) Managed by the South Wales Trunk Road Agent M4 motorwayM48motorway A48(M) motorway London - Fishguard Trunk Road (A40) Chepstow - Carmarthen...
Wales-connecting M49 motorway runs between the M5 near Avonmouth and the M4 motorway at the Second Severn Crossing. The old Severn Bridge and the M48motorway are linked...
Road (A494) Managed by the South Wales Trunk Road Agent M4 motorwayM48motorway A48(M) motorway London - Fishguard Trunk Road (A40) Chepstow - Carmarthen...
meets the A466, a road that provides access to the Wye Valley and to the M48motorway, originally the M4. Access to the M4 is available on this road. The A48...
Wrexham, a distance of around 153 miles (246 km). The A483 begins at the M4 motorway junction 42, just east of Swansea. It travels west along the Fabian Way...
Ishim). The A55 begins at junction 12 of the M53, the southern end of the motorway, near Chester. It is known as the Chester southerly bypass between J39...
The M5 is a motorway in England linking the Midlands with the South West. It runs from junction 8 of the M6 at West Bromwich near Birmingham to Exeter...
Retrieved 6 March 2024. "Monmouthshire Show". The Voice Magazines. "M4 Motorway, M48Motorway, South Wales (417517)". Coflein. RCAHMW. Retrieved 6 March 2024...
Chepstow and Hereford, and provides access to the Severn Bridge on the M48motorway. The distances of airports from Monmouth are, Bristol Airport 41 miles...
Road (A494) Managed by the South Wales Trunk Road Agent M4 motorwayM48motorway A48(M) motorway London - Fishguard Trunk Road (A40) Chepstow - Carmarthen...
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