Updated 28 July 2020

Work on a major scheme to reduce traffic congestion and improve access for pedestrians and cyclists at one of the Island’s busiest junctions is now underway and will last until mid-December 2020.

Construction of the Isle of Wight Council scheme will transform the approaches to, and access across, St Mary’s Roundabout in Newport. This will help reduce congestion now as well as ‘future-proofing’ the junction – given the expected growth in traffic movement associated with regeneration projects in the Newport area.

What does the scheme include?

The St Mary’s junction scheme includes benefits for vehicular, pedestrian, cyclist and local bus traffic.  The scheme will put in place new widened shared-use cycle/pedestrian facilities The current roundabout will also be removed and replaced with two, linked traffic light-controlled junctions to improve traffic flow.

The project, which began on September 30, 2019 and will be completed by mid- December 2020, is the largest of its kind on the Island for many years.  Construction is taking place over a number of phases.

Progress update:

Construction of the St Mary’s junction improvement scheme is progressing well and remains on schedule for completion before Christmas.

The works to the north of the roundabout fronting the hospital have been completed with a new shared footway/cycleway constructed on the opposite side of the road linking to the hospital via a new signal-controlled crossing.

The contraflow has now been removed, although traffic in each direction remains in a single lane to help manage flows while construction continues on St Mary’s roundabout.

The new signal-controlled junction with Forest Road is also nearing completion with eastbound traffic already using the new junction and northbound slip road to Cowes.

An additional lane has also been provided around the B&Q roundabout and the dual carriageway northbound approach to St Mary’s roundabout has been widened in readiness for its approach to the new signal-controlled junction.

Next phase: 10 August to 12 October 2020*


The next crucial phase of the works to begin to form the new signal-controlled junction and approach to the B&Q roundabout will start on the 10th August when the work will enter the following three key phases:

10 August to 21 August*

  • Forest Road is one way east bound.
  • Diversion route for westbound traffic via Carisbrooke Road and Gunville Road remains in place
  • Temporary traffic signals in operation at new Forest Road / Medina Way junction.
  • Dodnor Lane link closed in-bound from St Mary’s roundabout to Dodnor Lane roundabout.
  • St Mary’s roundabout reduced.

21 August to 7 September*

  • Forest Road reverts to two-way traffic and diversion is removed
  • Traffic signals in operation at new Forest Road / Medina Way junction.
  • Dodnor Lane link closed in-bound from St Mary’s roundabout to Dodnor Lane roundabout.
  • St Mary’s roundabout reduced to one circulatory lane.

7 September to 12 October*

  • Forest Road is two way.
  • Traffic signals in operation at new Forest Road/Medina Way junction.
  • Dodnor Lane is open.
  • St Mary’s roundabout reduced to one circulatory lane.

*Timescales are approximate

Please note that whilst access to Dodnor Lane from St Mary’s Roundabout will be restricted during the initial 2 phases of this work, access from the estate to St Mary’s Roundabout will be retained throughout.

Please refer to the traffic maps showing arrangements in the key documents section below.

We recognise that each phase of these works brings a different set of challenges for motorists to negotiate and we appreciate your patience while we complete these important works.

Due to the size and nature of this scheme, the works programme is subject to change, but programme updates will continue to be issued as each phase progresses.

Information and updates:

Stakeholders continue to receive updates about the scheme.  These have also been advertised in the local press with the traffic maps and these are included in the key documents below.

Regular scheme updates and information will be included on this page as the scheme progresses and will continue to be relayed via social media.

If you have any questions about the scheme that are not covered by the frequently asked questions document below, or would like to contact us – you can email info@islandroads.com or telephone 01983 822440.

You can also use our Report it online facility here.

Key documents