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- Motorway Database
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Chronology Maps
Click a section name to see full details and a map.
Completed | Route | Name | Start | End |
---|---|---|---|---|
A1(M) | Baldersby - Leeming | J50 Baldersby | J51 Leeming Bar |
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.
In this section
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- M1
- M2
- M3
- M4
- M5
- M6
- M6 Toll
- M8
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- M10
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- M20
- M23
- M25
- M26
- M27
- M32
- M40
- M42
- M45
- M48
- M49
- M50
- M53
- M54
- M55
- M56
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- M65
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- M90
- M180
- M181
- M271
- M275
- M602
- M606
- M621
- M876
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- M1 (NI)
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- M5 (NI)
- M12 (NI)
- M22 (NI)
- A1
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- A3
- A11
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- 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
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What's new
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.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Have you seen...
The Heads of the Valleys

The A465 Heads of the Valleys Road is one of the most spectacular trunk roads in the UK, and building it required some of the most remarkable civil engineering. This is the story of how the road was built in the 1960s, and how it's being rebuilt today.