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A30

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A30
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From:Hounslow (TQ115763)
To:Land's End (SW348250)
Length:284 miles (457 km)
Meets: M3, M5, M25, A4, A33, A34, A35, A36, A37, A38, A39, A303, A350
Former Number(s):A33, A341, B3313, B3379
Old route now:A343, B3400
Primary Destinations
Heathrow Airport
Highway Authorities

Highways England • Transport for London • Bracknell Forest Council • Cornwall Council • Devon Council • Dorset Council • Hampshire Council • Somerset Council • Surrey Council • Wiltshire Council • Windsor and Maidenhead Council

Traditional Counties

Berkshire • Cornwall • Devon • Dorset • Hampshire • Middlesex • Somerset • Surrey • Wiltshire

Route outline (key)
A30 Hounslow - Egham
A30 Egham - Popham
A30 Basingstoke - Andover - Lopcombe Corner
(A303) Popham - Bullington Cross
A30 Micheldever Station - Sutton Scotney
A30 Popham - St Thomas's Bridge
A30 St Thomas's Bridge - Salisbury
(A36) Salisbury - Wilton
A30 Wilton - Shaftesbury
A30 Shaftesbury
A30 Shaftesbury - Yeovil
A30 Yeovil
A30 Yeovil - Yarcombe
A30 Yarcombe - Exeter
(M5) Exeter
A30 Exeter - Penzance
A30 Penzance - Land's End
This article is about the A30 in England from Hounslow to Lands End.
For the A30 in Northern Ireland, see A30 (Northern Ireland)
.
For the A30 on the Isle of Man, see A30 (Isle of Man).

Contents

Route outline

The A30 in Stockbridge
Main Article: A30/route

The A30 is the third longest A-road in Britain, yet for about half its length it's non-primary - playing second fiddle first to the M3 and then to the A303. However, it is a lifeline to the people of Cornwall as well as Central and Western Devon, as for most of its route between Honiton and Penzance it is a mostly grade-separated dual carriageway.

Route breakdown

The A30 on the Basingstoke Ring Road

Hounslow - Popham

These sections were all downgraded when the M3 became the main route to Southampton instead of the A30 and A33.

Bullington Cross - Upottery

The A30 leaving the A33 near Popham

Between the reclassification of the Basingstoke bypass to Popham, and the inauguration of the A303 as the main trunk route to the South West, these sections were still important roads, but since the A303 had become better quality, these sections have been largely superseded, providing mainly for local traffic between the towns and villages it lies on.

Upottery - Lands End

The A30 over Hayle Estuary

From Upottery, the A30 takes over from the A303, becoming the main trunk route to the far South West, and is mostly a grade separated dual carriageway from Honiton to Camborne, and only has four sections between Upottery and Penzance that are not dual carriageway.

Road projects

Goss Moor remained a major bottleneck for over 40 years

The A30 has seen many improvements over the years and they seem set to continue as the A30 nears the 100th anniversary of its classification and its first bypass.

History

The A30 originally ran via Andover instead of Stockbridge
Main Article: A30/history

The A30 has been an important route for traffic since the days of coaching in the 18th century, though The modern route deviates significantly from the historic route in several key places.

1933 saw the first mass renumbering of a major road in Britain, when the A30 was routed down to Stockbridge, instead of through Andover. Nothing on this scale has been done since the 1935 Renumberings, which was to try and help map makers, as well as help people use road numbers for directions. This also created the A303, which now takes the trunk route status all of the way to Upottery.



A30
JunctionsAlphington Junction • Avers Junction • Bellmans Cross • Black Dam Roundabout • Bolventor Junction • Boxheater Junction • Branwell Lane • Brighton Hill Roundabout • Bullington Cross • Bunfield Hollow Roundabout • Callywith Junction • Cannaframe Junction • Carland Cross • Carminow Cross • Cheneys Farm Interchange • Chiverton Cross • Chy-An-Mor • Chyandour Roundabout • Chybucca Junction • Clockhouse Roundabout • Crooked Billet • Daisymount Junction • Devonshire House • Dummer Interchange • Egham Hill Roundabout • Fingle Glen Junction • Fivelanes Junction • Fraddon Junction • Hackwood Road Roundabout • Hatch Warren Roundabout • Hatton Cross • Heamoor Roundabout • Henlys Roundabout • Highgate Hill Roundabout • Horsey Roundabout • Hospital Roundabout (Yeovil) • Innis Downs Junction • Iron Bridge Junction • Ivy Cross Roundabout • Kempshott Roundabout • Kennards House Junction • Langford Junction • Liftondown Junction • Loggans Moor • Meldon Junction • Mitchell Junction • Mount Misery • Newtown Roundabout • Pattesons Cross Junction • Pearce's Hill • Pennygillam Junction • Plusha Junction • Popham Interchange • Pound Corner • Preeze Cross Junction • Quicksilver Roundabout • Royal Chase Roundabout • Runnymede Interchange • Scorrier Junction • Sourton Cross • Southay Cross • Sowton Interchange • St Erth Roundabout • St Marks Roundabout • Stowford Cross Junction • Summercourt Junction • Tavistock Road Junction • Temple Cross Junction • Terminal 4 Roundabout • The Bull Dog • Tolvaddon Junction • Tongue End Junction • Trebursye Junction • Treswithian Junction • Turks Head Junction • Two Bridges Junction • Victoria Interchange • Whiddon Down Junction • Wilton Roundabout (Wiltshire) • Winchester Road Roundabout • Woodleigh Junction
ServicesBasingstoke services • Cornwall Services
CrossingsDunheved Bridge • Easthams Bridge • Haselbury Bridge • High Bridge (Dorset) • Palmersbridge • Runnymede Viaducts • Sticklepath Bypass Bridge • Stockbridge • Yarcombe Bridge
ProjectsA30/Bodmin - Indian Queens Dualling • A30/Carland Cross - Chiverton Cross Dualling • A30/Temple - Higher Carblake Dualling
RoadsA30/Bagshot - Popham • A30/Bodmin - Redruth • A30/Bullington Cross - Salisbury • A30/Exeter - Okehampton • A30/Hounslow - Bagshot • A30/Launceston - Bodmin • A30/Okehampton - Launceston • A30/Penzance - Lands End • A30/Popham - Sutton Scotney • A30/Redruth - Penzance • A30/Salisbury - Wilton • A30/Shaftesbury - Yeovil • A30/Upottery - Exeter • A30/Wilton - Shaftesbury • A30/Yeovil - Upottery • A30/route • E1 (Old System) • Fosse Way • T13 (Britain) • T40 (Britain) • T8 (Britain)
MiscellaneousA30/History - A303 to Exeter • A30/History - M5 to Okehampton • A30/Major Improvements • A30/Named Junctions • A30/history
Related Pictures
View gallery (494)
A30 - Coppermine - 10710.jpgA30 May 1995 - Coppermine - 11679.jpgA30(T) - Coppermine - 10706.jpgBodmin bypass. - Coppermine - 12113.jpgNew A30 - Coppermine - 10253.jpg
Other nearby roads
HounslowA244 • A30/Hounslow - Bagshot • A30/Sandbox • A3005 • A3006 • A3063 • A312 • A314 • A315 • A4 • A4/Great West Road • A4/Slough - London • B3377 • B358 • B361 • B362 • B363 • E1 (Old System) • Longest Lane • T8 (Britain)
PenzanceA30/Redruth - Penzance • A30/Sandbox • A3071 • A3077 • A394 • B3283 • B3309 • B3310 • B3311 • B3312 • B3313 • B3314 (Penzance) • B3315 • B3316 • B3317 • B3317 (St Just - Penzance) • T8 (Britain)
ExeterA30/Exeter - Okehampton • A30/Sandbox • A30/Upottery - Exeter • A3015 • A3052 • A3084 (Exeter) • A3085 • A35 • A376 • A377 • A378 (Exeter) • A379 • A38 • A380 • A396 • B3123 • B3174 • B3181 • B3181 (Pinhoe - Topsham) • B3182 (Countess Wear - Sandy Park) • B3182 (Exeter - Countess Weir) • B3182 (Exeter) • B3183 • B3183 (historical) • B3184 • B3184 (Broadclyst) • B3212 • E116 (Old System) • Exeter Bypass • M5 • NCN2 • T16 (Britain) • T40 (Britain) • T8 (Britain)
SalisburyA30/Sandbox • A3027 (Salisbury) • A3052 (Wiltshire) • A3087 (Salisbury) • A3094 • A338 • A3393 • A345 • A354 • A36 • A360 • B3085 (Salisbury) • B3086 • B3094 (Salisbury) • B3389 • B3393 • Icknield Way • Portway (Roman Road) • T39 (Britain) • T8 (Britain)
BasingstokeA30/Sandbox • A3010 • A33 • A339 • A340 • B3046 • B3052 (Basingstoke) • B3400 • Basingstoke Ring Road • E1 (Old System) • Harroway • M3 • M30 • NCN23 • T38 (Britain) • T7 (Britain) • T8 (Britain)
A1-A99
The First 99           A1  •  A2  •  A3  •  A4  •  A5  •  A6  •  A7  •  A8  •  A9  • A10 • A11 • A12 • A13 • A14 • A15 • A16 • A17 • A18 • A19
A20 • A21 • A22 • A23 • A24 • A25 • A26 • A27 • A28 • A29 • A30 • A31 • A32 • A33 • A34 • A35 • A36 • A37 • A38 • A39
A40 • A41 • A42 • A43 • A44 • A45 • A46 • A47 • A48 • A49 • A50 • A51 • A52 • A53 • A54 • A55 • A56 • A57 • A58 • A59
A60 • A61 • A62 • A63 • A64 • A65 • A66 • A67 • A68 • A69 • A70 • A71 • A72 • A73 • A74 • A75 • A76 • A77 • A78 • A79
A80 • A81 • A82 • A83 • A84 • A85 • A86 • A87 • A88 • A89 • A90 • A91 • A92 • A93 • A94 • A95 • A96 • A97 • A98 • A99
Motorway sectionsA1(M): (South Mimms - Baldock • Alconbury - Peterborough • Doncaster Bypass • Darrington - Leeming • Barton - Birtley)
A3(M) • A8(M) Baillieston spur • A14(M) • A38(M) • A48(M) Cardiff spur • A57(M) • A58(M) • A64(M) • A66(M) • A74(M) • A92(M)
DefunctA1(M) Newcastle CME • A2(M) Medway Towns Bypass • A4(M) • A5(M) • A8(M) Renfrew bypass • A9(M) • A14 • A18(M) • A20(M) • A36(M)
A40(M): (Westway • Denham -Stokenchurch) • A41(M) • A42 • A46(M) • A48(M): (Port Talbot bypass • Morriston bypass) • A62(M) • A77(M) • A88 • A90(M) • A99
UnbuiltA2(M) Rochester Way Relief Road • A6(M): (Western route • Eastern route) • A34(M) • A48(M) Llantrisant Radial • A59(M) • A61(M)