A48(M)

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A48(M)
Location Map
Cameraicon.png View gallery (9)
From:  Castleton (ST262842)
To:  St Mellons (ST230819)
Distance:  2.2 miles (3.5 km)
Meets:  M4, A48
Highway Authorities

Welsh Government


South Wales TRA
Traditional Counties

Monmouthshire

Route outline (key)
A48(M) Castleton - St Mellons
Junction List
Junc Northbound Southbound
29 M4 Start of Motorway
29A Start of Motorway A48
This article is about the spur running from junction 29 of the M4 towards Cardiff.
For the Port Talbot bypass, now M4 junctions 39 to 41, see A48(M) (Port Talbot Bypass)
.
For the Morriston bypass, now M4 junctions 44 to 46, see A48(M) (Morriston Bypass).
For the unbuilt Llantrisant Radial in Cardiff, see A48(M) (Llantrisant Radial).
Globe.png
For detailed information about this topic, see Roads.org.uk Motorway Database and Pathetic Motorways
Junction of the A48(M) and M4 before widening of the latter

The A48(M) is a motorway spur running from junction 29 of the M4 towards Cardiff. The road ends when it meets the A48 to the east of the city; there is no access to the eastbound A48 from here.

Opening dates

For detailed information about this section, see Roads.org.uk Motorway Database: A48(M) Timeline

External links

Roads UK



A48(M)
JunctionsCastleton Interchange • St Mellons Junction
PlacesCardiff • Newport
Related Pictures
View gallery (9)
Congestion on the A48(M) - Geograph - 1535609.jpgM4 Toll - Coppermine - 144.JPGM4 eastbound at junction 29 - Geograph - 520273.jpgM4 junction 29 rebuild.pngM4 westbound at junction 29 - Geograph - 520298.jpg
Other nearby roads
CardiffA4050 • A4053 (Cardiff) • A4054 • A4055 • A4056 • A4119 • A4160 • A4161 • A4232 • A4234 • A469 • A470 • A48 • A48(M) (Llantrisant Radial) • B4239 • B4258 (Llandaff) • B4258 (Roath - Gabalfa) • B4259 • B4260 (Penarth) • B4261 • B4261 (Llandaff - Llantrisant) • B4262 • B4267 • B4288 (Monmouthshire) • B4487 • B4488 • B4562 • E105 (London - Fishguard) • E30 • Ffordd Cambria • Hook Road • M4 • NCN8 • T10 (Britain) • T75 (Britain) • Western Tangential
NewportA4042 • A4051 • A4052 (Newport) • A4072 (Newport) • A437 (Gloucester - Newport) • A449 • A455 (Newport) • A467 • A468 • A48 • A4810 • B4004 (Newport) • B4236 • B4237 • B4237 (Maindee - Docks) • B4238 • B4239 • B4239 (Newport) • B4240 • B4241 • B4242 (Newport) • B4243 • B4288 (Monmouthshire) • B4591 • B4596 • E105 (London - Fishguard) • E30 • EuroVelo 1 • M4 • NCN4 • T103 (Britain) • T10 (Britain) • T17 (Britain) • T78 (Britain)
Motorways in Great Britain
Current MotorwaysM1 • M2 • M3 • M4 • M5 • M6 • M6 Toll • M8 • M9 • 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) • A8(M) • A14(M) • A38(M) • A48(M) • A57(M) • A58(M) • A64(M) • A66(M) • A74(M) • A92(M) • A167(M) • A168(M) • A194(M) • A195(M) • A308(M) • A329(M) • A404(M) • A601(M) • A627(M) • A635(M) • A666(M) • A823(M) • A1058(M)
Motorway Spurs • (M4 Heathrow Spur • M25 T5 Spur • Walton Summit M'way)
Former MotorwaysM10 • M15 • M16 • M30 • M41 • M52 • M62 • M63 • M64 • M65 • M68 • M85 • M110 • M111 • M270 • M274 • M531 • M600
A2(M) • A4(M) • A5(M) • A8(M) • A11(M) • A18(M) • A20(M) • A21(M) • A23(M) • A36(M) • A40(M) (Central London) • A40(M) (Buckinghamshire) • A41(M) • A46(M) • A48(M) (Morriston) • A48(M) (Port Talbot) • A65(M) • A102(M) (North) • A102(M) (South) • A423(M) • A446(M) • A604(M) • A638(M) • A696(M) • A1231(M) • A6127(M) • A6138(M) • A6144(M)
Unbuilt MotorwaysM4 Toll • M12 (Woodford - Brentford) • M12 (Woodford - Maplin) • M12 (Brentwood - -Chelmsford) • M13 • M17 • M19 • M31 • M58 • M59 • M60 • M62 RR • M64 • M81 • M82 • M83 • M100 • M272 • M601 • M650
A2(M) • A6(M) (West) • A6(M) (East) • A14(M) • A48(M) • A59(M) • A61(M) • A556(M) • A695(M)
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