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Holyport Interchange

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Holyport Interchange
Location Map ( geo)
A404(M) Maidenhead - Coppermine - 6878.JPG
Cameraicon.png View gallery (3)
Location
Holyport nr Maidenhead
County
Berkshire
Highway Authority
National Highways
Junction Type
Roundabout Interchange
Roads Joined
M4, A308(M), A404(M)
Junctions related to the A308

Holyport Interchange is Junction 8/9 of the M4.

It is a simple roundabout interchange with the A404(M) (the rump part of the Maidenhead Bypass) and the A308(M) (a link to the A308) both terminating here. It opened on 22 December 1971.

This junction is unique as it is the only one in the UK to have two numbers, 8/9. This is because when it was built, the original junction 8 with the A308 was removed as the distance between the two junctions was insufficient. Junction 9 was at the end of the now A404(M), which was previously part of the M4. When this junction opened, J9 was numbered 9b, while the new junction took both original numbers.

Under plans to widen the M4 in the 1990s, the Highways Agency spoke of "lower level improvements" planned for this interchange, which would involve purchasing land to the south. That plan was eventually dropped, and due to congestion at this junction, the sliproads were widened in around 2007.

Under one plan for Maidenhead services, it would have been to the south of the junction, accessed from it.

Routes

Route To Notes

M4

The WEST, South Wales, Reading

M4

London, Windsor, Slough

A308(M)

Maidenhead (Central)

A404(M)

High Wycombe, Henley, Maidenhead (West)

A423(M)

Oxford, Henley, Maidenhead (West)




Holyport Interchange
Services
Related Pictures
View gallery (3)
A404(M) from M4 J8-9.jpgA404(M) Maidenhead - Coppermine - 6878.JPGM4Maidenhead.jpg
Other nearby junctions
Maidenhead
Junctions on the M4
Main RouteChiswick • 2 Brentford • 3 Cranford Parkway • 4 Heathrow • 4B Thorney • 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 Quintin • 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 A404 and A404(M)
Marylebone Flyover • Stonebridge Park • John Lyon Roundabout • Sheepcote Road Roundabout • Northwood  Hills Circus • London Road / Moor Lane Roundabout • Batchworth Roundabout • Ebury Roundabout • Station Roundabout • Chorleywood Interchange • Nightingales Corner • Blackhorse Bridge • Boot and Slipper • Stanley Roundabout • Market Square • Hospital Roundabout • Hazlemere Crossroads • Abbey Way Gyratory • Handy Cross • Westhorpe • Bisham Roundabout • Burchetts Green Roundabout • 9B The Thicket Roundabout • 9A Cox Green • 9 Holyport Interchange

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