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Chilworth Interchange

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Chilworth Interchange
Location Map ( geo)
M3-M27 West Junction - Geograph - 26594.jpg
The western end of the interchange
Cameraicon.png View gallery (17)
Location
Chilworth
County
Hampshire
Highway Authority
Highways England
Junction Type
Modified Directional-T
Roads Joined
M3, M27, A27, A33
Junctions related to the A33

Chilworth Interchange is junction 4 of the M27. The Chilworth Roundabout (or Clock Roundabout) is just south of the M27, just south of the southern end of the M3, where the A33 meets the A27. Both are numbered junction 14 of the M3.


The junction was originally a crossroads between the A33 and the A27. This was complicated by the arrival of the Chandler's Ford Bypass, which caused the A33 to effectively split into two (the old road and the new road) in the middle of the junction. A flyover was provided in the 1960s, along with a roundabout to the south.

In 1975, the M27 west of the junction opened, ending at a fork on the A33, and a lane drop at the western end. In 1983 the rest of the junction layout opened with the M27 to the east. In 1991 the A33 to the north was upgraded to M3, widening it north of the M27 east merge.

The 1983 extension was controversial and an alternative plan considered terminating the M3 with a modified trumpet in place of the current fork, and widening the recently completed west slips.

In 1998 the eastbound approach to the junction was used to examine a new tiger tail exit. It was estimated that up to 50% of traffic was leaving the road here, and the existing single lane drop was overloaded, leading to poor driver behaviour. The new layout was considered successful in rectifying this. In 2008, the M27 widening resulted in the exit getting the double lane drop it deserved.

The westbound approach was also converted to a tiger tail, and with the completion of the smart motorway project, will also become a double lane drop.

Routes

Route To Notes

M3

The MIDLANDS, London, Eastleigh, Winchester

M27

The WEST, So'ton Docks & Ferries, Bournemouth no access from non-motorway routes

M27

Portsmouth, Fareham, Eastleigh, Southampton & Airport no access from non-motorway routes

A27

Romsey, Chilworth, N. Baddersley, Southampton Science Park

A27

Swaythling, Airport (A335), Crematorium

A33

City centre, Docks
Chandlers Ford, Hypermarket Winchester Road
Hotel and Conference Centre Bracken Place. Traffic heading from Southampton sent up A27, over M3 and back down again





Chilworth Interchange
Related Pictures
View gallery (17)
M3 to M27 west link - Geograph - 28411.jpgA33, A33. - Coppermine - 20284.jpgM3 ( southbound ) - Coppermine - 8405.jpgM3-M27 - Coppermine - 8402.jpgM27 near Rownhams - Coppermine - 16710.jpg
Other nearby junctions
Southampton
Allington Lane Roundabout • Bassett Crossroads • Batts Corner • Bevois Valley Interchange • Charlotte Place • Hedge End Interchange • Hollybrook Roundabout • Kanes Hill Roundabout • Lordshill Roundabout • Mayflower Roundabout • Memorial Roundabout (Southampton) • Millbrook Roundabout • Mitchell Way Roundabout • Mousehole Roundabout • Nursling Interchange • Ower Interchange • Ower Roundabout • Portswood Interchange • Redbridge Junction • Redbridge Roundabout (Southampton) • Romsey Road Roundabout • Rownhams Interchange • Six Dials • Stag Gates • Stoneham Interchange • Swaythling Interchange • Townhill Park Interchange • Western Terminal Interchange • Westfield Corner • Windhover Interchange • Windhover Roundabout
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 • Marsh • Stopgate Cross • Devonshire House
Junctions on the M27 and spurs
M27Cadnam • 2 Ower • 3 Rownhams • 4 Chilworth • 5 Stoneham • Townhill Park • 7 Hedge End • 8 Windhover • 9 Park Gate • 10 North Hill • 11 Wallington • 12 Paulsgrove • 12 Hilsea
Unbuilt M27:13 Portsbridge • 14 Farlington • 15 Broad Marsh • Langstone • Warblington • Fishbourne Roundabout
M271Redbridge • 1 Nursling • 2 Rownhams • Romsey Road
M275Paulsgrove • Hilsea • 1 Tipner • 2 Rudmore Roundabout
Other spursOwer Rdbt • Swaythling • Portswood • Bevois Valley • Western Terminal • Allington Ln Rdbt • Mousehole Rdbt
A27
Pevensey to LewesPevensey Roundabout • Golden Jubilee Roundabout • Cop Hall Roundabout • Eastbourne Road Junction • Berwick Roundabout • Beddingham Roundabout
Lewes to LancingSoutherham Roundabout • Ashcombe Roundabout • Falmer Interchange • Coldean Interchange • Hollingbury Interchange • Patcham Interchange • Devils Dyke Interchange • Hangleton Interchange • Holmbush Interchange • Adur Interchange • Lancing College Junction
Lancing to ClaphamLancing Manor Roundabout • East Worthing Crossroads • Grove Lodge Roundabout • Offington Corner
Clapham to ChichesterClapham Interchange • Poling Corner • Crossbush Junction • Causeway Roundabout • Ford Roundabout • Danes Crossroads • Fontwell East Roundabout • Fontwell West Roundabout • Boxgrove Roundabout • Templebar Interchange
Chichester By-passResort Hotel Roundabout • Portfield Roundabout • Oving Crossroads • Bognor Road Roundabout • Whyke Roundabout • Stockbridge Roundabout • Fishbourne Roundabout
Incomplete M27Warblington Interchange • Langstone Interchange • Bedhampton Roundabout • Broadmarsh Interchange • Farlington Interchange • Port Solent Interchange
M27 J12 - M27 J11Paulsgrove Interchange • Castle Street Roundabout • West Street Roundabout • Cornaway Lane Roundabout • Condor Avenue Roundabout • Delme Roundabout • Wallington Interchange
M27 J11 - M27 J9Quay Street Roundabout • Station Roundabout • Titchfield Gyratory • Mill Lane Junction • St. Margarets Roundabout • Segensworth Roundabout • Park Gate Interchange