A303

Route

A303

Junction number

None

Markerpost

180.5

Name

Unknown

Type

Trumpet

Terminus

Not a terminus

Other routes

A371

Authority

Highways England

Restricted turns

Full access

Services

No services

Layout and signage

Wincanton A371
Blandford (A357)
  A371
(A357)
      Wincanton A371
Blandford (A357)

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?

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West Cross Route

Desperately-needed but never built, this was one of the only London urban motorway plans that were ever progressed to the construction stage.