Almondsbury Interchange

Almondsbury Interchange
Location Map
View gallery (18)
Type  :	Four-Stack
Roads Joined  :	M4, M5
Location  :	Almondsbury, Gloucestershire

An overhead shot of the interchange under construction

A picture of the interchange under construction from the lowest level

The Almondsbury Interchange is the main junction for traffic to interchange between the M4 and M5. For the M4, it is J20, and for the M5 it is J15. 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

Strip Maps

• 

  The current layout of the interchange.

Links

• CBRD Bad Juctions page

Almondsbury Interchange

Related Pictures View gallery (18)

Junctions on the M4 1 Chiswick • 2 Brentford • 3 Cranford Parkway • 4 Heathrow, Cherry Lane • 4A Concord • 4B Colnbrook • 5 Langley • 6 Tuns Lane • 7 Huntercombe Spur • 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 Redwick • 23 Rogiet • 23A Magor • 24 Coldra • 25 Caerleon • 25A Grove Park • 26 Malpas • 27 High Cross • 28 Tredegar Park 29 Castleton • 30 Pentwyn • 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 Former Junctions: 8 Bray • 9A Cox Green • 9B The Thicket • 19A Frenchay • 21 Aust • 22 Newhouse • 29 Junction 29

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 Junction 14 • 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 • 26 Chelston • 27 Tiverton Parkway • 28 Cullompton • 29 Sowton • 30 Sandygate • 31 Pearce's Hill

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