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A303 and A36 improvements

National Highways work programme

National Highways manage the A36, the A303 and the M4 in Wiltshire. Their priorities are set out in their delivery plan.

A303 Improvements

National Highways are planning to improve the A303 past Stonehenge with a new high quality dual carriageway and two-mile long tunnel, which will remove traffic from a large part of the Stonehenge landscape. The scheme aims to address congestion and reduce impact on the Stonehenge World Heritage Site.  For the latest updates on the scheme go to

Cycle Schemes

National Highways published their Accessibility Strategy in May 2016.  They aim to:

  • Facilitate cycling on or near the trunk road network for all types of cyclist and make cycling on and over their network safer and easier; and
  • Reduce the impact of their network as a barrier to cycling journeys.

Wiltshire Council has asked National Highways to look at new cycle paths:

  • Across the M4 between Royal Wootton Bassett and Swindon
  • On the A36 on Wilton Road,  a cycle path to bypass Wilton Road by linking Park Walls to Quidhampton
  • On the A36 Churchfield Way North between Castle Roundabout and St Mark’s Roundabout
  • On the A36 Southampton Road between Bourne Way and Marshmead Close
  • Across the A303 Countess Roundabout in Amesbury
  • More information on the A36 cycle routes is available on the Wiltshire Council website.

Help your friends travel simpler