Almondsbury Interchange

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Almondsbury Interchange
Location Map ( geo)
M5 Avon-08-M5 Northbound - Coppermine - 1483.jpg
Cameraicon.png View gallery (19)
Location
Almondsbury
County
Gloucestershire
Highway Authority
Highways England
Junction Type
Four-Stack
Roads Joined
M4, M5
An overhead shot of the interchange under construction
A picture of the interchange under construction from the lowest level
This article is about the interchange that is junction 20 of the M4 and junction 15 of the M5.
For junction 16 of the M5, see Almondsbury Roundabout
.

The Almondsbury Interchange is the main junction for traffic to interchange between the M4 and M5. For the M4, it is Junction 20, and for the M5 it is Junction 15. The interchange is interlinked with M5 junction 16, which provides access to the A38.

The junction was the first example of a four-level stack in the country. Both motorways are dual two-lane plus hard shoulder through the interchange, though the approach roads are generally three lanes. The westbound M4 widens to 4 lanes on approach to the interchange. Link roads connecting from M4 to M5 pass over the top level of the interchange and links from the M5 to the M4 pass underneath all other levels.

The interchange opened in stages, with the M4 and M5 south to Junction 16 opening with the Severn Bridge in September 1966 and the M5 northwards in December 1971.

Construction of the Second Severn Crossing and the M49 has taken the majority of M4 traffic from South Wales to the M5 South away from the Almondsbury Interchange.

Routes

Route To Notes

M4

Bristol, London

M4

SOUTH WALES, Cardiff

M5

The MIDLANDS, Gloucester

M5

The SOUTH WEST, Weston-s-Mare, Exeter

Maps

Ordnance Survey One Inch map, 1966


Links



Almondsbury Interchange
Related Pictures
View gallery (19)
M4-M5 Under construction 1966.jpgM5 Avon-05-M5 Almondsbury - Coppermine - 1486.jpgM5 Avon-08-M5 Northbound - Coppermine - 1483.jpgJ21 just before the 2nd Seven Bridge - Coppermine - 4930.jpgNorthbound M5, Exit at Junction 16 (C) David Dixon - Geograph - 3807896.jpg
Other nearby junctions
Bristol
Portway Roundabout (Bristol) • Lawrence Weston Interchange • Cumberland Basin • Ashton Gate • Bedminster Bridge • Bath Bridge (Bristol) • Hambrook Interchange • Almondsbury Roundabout • Cribbs Causeway • Gordano Interchange • Frenchay Interchange • Eastville Interchange • Lower Ashley Road Interchange • St Brendans Roundabout • Hicks Gate Roundabout • Aztec West • Kingsfield Roundabout • Deanery Road Roundabout • Siston Hill Roundabout • Dramway Roundabout • The Rosary Roundabout • Lyde Green Roundabout • Wick Wick Roundabout • Bromley Heath Roundabout • Hambrook Lights • Abbey Wood Roundabout • Filton Roundabout • St James Barton • Cabot Circus • Three Lamps Interchange • Lawrence Hill Roundabout • Tyndalls Park Interchange • Feeder Road Interchange • Bryants Hill Interchange • Queen Square (Bristol) • Lime Kiln Roundabout • Gurney Roundabout • M32 Bus Only Junction • Temple Circus
Junctions on the M4
Main RouteChiswick • 2 Brentford • 3 Cranford Parkway • 4 Heathrow • 4B Colnbrook • 5 Langley • 6 Tuns Lane • 7 Huntercombe • 8/9 Holyport • 10 Winnersh • 11 Three Mile Cross • 12 Theale • 13 Chieveley • 14 Wickham • 15 Plough Hill • 16 Spittleborough • 17 Stanton St Quinton • 18 Tormarton • 19 Hambrook • 20 Almondsbury • 21 Awkley • 22 Pilning • 23 Rogiet • 23A Magor • 24 Coldra • 25 Caerleon • 25A Grove Park • 26 Malpas • 27 High Cross • 28 Tredegar Park • 29 Castleton • 30 Pentwyn • 31 Junction 31 • 32 Coryton • 33 Cardiff West • 34 Miskin • 35 Pencoed • 36 Sarn • 37 Pyle • 38 Margam • 39 Groes • 40 Taibach • 41 Pentyla • 42 Earlswood • 43 Llandarcy • 44 Lon-Las • 45 Ynysforgan • 46 Llangyfelach • 47 Penllergaer • 48 Hendy • 49 Pont Abraham
Heathrow SpurCherry Lane • 4 Heathrow • 4A Concord
Former RoutesBray • 9A Cox Green • 9B The Thicket // 19 Hambrook • 19A Frenchay // 20 Almondsbury • 21 Aust • 22 Newhouse • 23 Magor // 28  Tredegar Park • 29 St Mellons
Defunct Newport
Bypass Proposal
23 Rogiet • 25 Glan Llyn • 27 Dock Way • 29 Castleton
Junctions on the M5
M6 (8) Ray Hall • 1 West Bromwich • 2 Oldbury • 3 Quinton • 4 Lydiate Ash • 4A Catshill • 5 Rashwood • 6 Warndon • 7 Crookbarrow • 8 Strensham • 9 Ashchurch • 10 Piffs Elm • 11 Golden Valley • 11A Brockworth • 12 Junction 12 • 13 Stroudwater • 14 Falfield • 15 Almondsbury • 16 Almondsbury Rdbt • 17 Cribbs Causeway • 18 & 18A Lawrence Weston • 19 Gordano • 20 Clevedon • 21 St Georges • 22 Edithmead • 23 Dunball • 24 Huntworth • 25 Blackbrook • Black Brook • 26 Chelston • 27 Tiverton Parkway • 28 Cullompton • 29 Sowton • 30 Sandygate • 31 Pearce's Hill