Road scheme and chronology data is courtesy SABRE (where much of it was gathered by member Ross Spur), with additional data from the UK Motorway Archive, the Scottish Roads Archive and the Northern Ireland Roads Site.
Breadcrumb
- Motorway Database
- Chronology Maps
- M4 Bridgend Bypass
M4 Bridgend Bypass
Name
Bridgend Bypass
In this section
- Select a route
- M1
- M2
- M3
- M4
- M5
- M6
- M6 Toll
- M8
- M9
- M10
- 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
- M1 (NI)
- M2 (NI)
- M3 (NI)
- M5 (NI)
- M12 (NI)
- M22 (NI)
- A1
- A2
- A3
- A11
- A12
- A13
- A14
- A15
- A19
- A21
- A23
- A30
- A34
- A38 (Devon)
- A38 (Midlands)
- A40 (Ross-Raglan)
- A40 (Raglan-Abergavenny)
- A41
- A42
- A50
- A55
- A64
- A120
- A168
- A282
- A303
- A406
- A417
- A419
- A421
- A449
- A465
- A470
- A500
- A720
- A1203
- A1261
- A5148
- A5300
- A12 (NI)
- A1(M)
- A3(M)
- A8(M)
- A38(M)
- A48(M)
- A57(M)
- A58(M)
- A64(M)
- A66(M)
- A74(M)
- A167(M)
- A194(M)
- A308(M)
- A329(M)
- A404(M)
- A601(M)
- A627(M)
- A823(M)
- A1077(M)
- A6144(M)
- A8(M) (NI)
- Chronology Maps
- Location search
- Key to exit lists
What's new
Red, white and blue
Kent County Council is run by eurosceptic nationalists. So why are they putting EU flags on their road signs?
The sunlit uplands
On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.
Grand openings
Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.
Have you seen...
Clear and legible

A century ago, one short memorandum issued by the Ministry of Transport laid the groundwork for a system of standardised, uniform road signs and a great deal more.