A303

Route

A303

Junction number

None

Markerpost

111.3

Name

Unknown

Type

Dumbbell

Terminus

Not a terminus

Other routes

A342, A343, B3402

Authority

Highways England

Restricted turns

Full access

Services

No services

Layout and signage

Andover A343
Devizes A342
 
B3402
A343

A342
(A346)
      Andover
Newbury A343
Devizes A342
Marlborough
(A346)

Lane configuration

LanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.

LanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.

In this section

What's new

Gifts for road lovers

Keep being asked what you want for Christmas? No problem: here’s our pick of road-related Christmas treats for 2021.

Go west! New Ringways pages are here

A new set of Ringways pages are now online, looking at unbuilt motorways and road projects west of London.

No smoke without ire

London's Ultra Low Emission Zone has just expanded to cover the whole inner city, and across the UK, other cities are implementing their own Clean Air Zones. Is this the future?

Share this page

Have you seen...

Ringways

The story of an incredible plan to reshape London into a city of motorways, with the history from creation to cancellation and details on every unbuilt road.