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Frimley Interchange

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Frimley Interchange
Location Map ( geo)
Approaching Junction 4, M3 - Geograph - 2809768.jpg
Cameraicon.png View gallery (3)
Hampshire • Surrey
Highway Authority
National Highways
Junction Type
Folded dumbbell
Roads Joined
M3, A331
Junctions related to the A331

Frimley Interchange is junction 4 of the M3.


Early plan for the junction

Original plans for the M3 from the late 1960s show a Roundabout interchange at the former A321, now B3411. The junction was never built here nor to this design. Instead a different junction was built half a mile to the west.

When the M3 opened here in 1971, neither the A331 Blackwater Valley Route nor the A325 Frimley bypass existed. The northern roundabout of the interchange was not yet built: the carriageways under the motorway were part of the slip roads to and from the London-bound M3, and had motorway status. From the interchange's southern roundabout, a dual carriageway all-purpose link ran 500 yards south to an at-grade roundabout on the then A325 Frimley High Street / Farnborough Road.

The business park is also a later addition.


Route To Notes


The SOUTH WEST, Southampton, Basingstoke


London, Bracknell, Woking


Guildford, Farnham (A31), Aldershot (A323), Farnboro' (A325), Camberley, Frimley (A325), Frimley Park Hospital


Reading (A327), Wokingham (A321), Camberley (A30), The Meadows, Yorktown
Frimley Business Park

Frimley Interchange
Related Pictures
View gallery (3)
Frimley Interchange early plan.pngApproaching Junction 4, M3 - Geograph - 2809768.jpgFrimley Interchange 1973.jpg
Junctions on the M3, A303 and A316
A316Hogarth Roundabout • Chalkers Corner • Manor Circus • Richmond Circus • St. Margarets Roundabout • London Road Roundabout • Whitton Road Roundabout • Hospital Bridge Roundabout • Apex Corner • Waterworks Roundabout • Sunbury Cross
M3Sunbury Cross • Shepperton • 2 Thorpe • 3 Bagshot • 4 Frimley • 4A Minley • 5 Hook • 6 Black Dam • 7 Dummer • 8 Popham • 9 Winnall  • 10 Bar End • 11 Hockley Cross • 12 Allbrook • 13 Leigh Road • 14 Chilworth
A303Popham • Overton Road • Micheldever • Bullington Cross • Barton Stacey • Longparish • Picket Twenty • Winchester Road • Salisbury Road • Hundred Acre • Thruxton • Quarley • Parkhouse Cross • Double Hedges • Folly Bottom • Countess Roundabout • Stonehenge Bottom • Longbarrow Roundabout • Deptford • Furzehedge • Mere • Tinkers Hill • Wincanton • Chapel Cross • Hazelgrove Roundabout • Camel Cross • Podimore Roundabout • Ilchester Mead • Cartgate Roundabout • Hayes End Roundabout • Southfields Roundabout • Eagle Cross • Marsh • Stopgate Cross • Devonshire House

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