Route
Junction number
None
Markerpost
130.7 km
Name
Countess Roundabout
Type
Roundabout
Terminus
Not a terminus
Other routes
A345
Authority
Restricted turns
Full access
Services
No services
A303 Countess Roundabout
Layout and signage
|
Marlborough A354 Salisbury Amesbury A345 |
A345 (A342) |
|
A345 |
Salisbury Amesbury A345 Pewsey A345 Devizes (A342) |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
Other events
Traffic signals
- Traffic signals
What's new
Grand openings
Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Skid Risk, Accident, Fog
For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.
Have you seen...
New Medway Viaducts
Taken over the course of two years, from 2002 to 2003, these sixteen images chart the construction of two new bridges alongside the M2 Medway Viaduct.
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