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A30 Temple to
Higher Carblake
improvement scheme

2016-05-31 - A30 Temple Scheme - map only (2)

Scheme Overview

The current single carriageway of the A30 between Temple and Higher Carblake is the only section of single carriageway between leaving Scotland and reaching Temple. This 4.5km section of road is being improved to dual carriageway standard for the entire length which will negate regular traffic congestion in the area.


Link to Cornwall Council video release 22.03.16

Work started in June 2015 and is due for completion Spring 2017.

We are dualling the single carriageway on the A30 between Temple and Higher Carblake, just east of Bodmin. The length of road involved is 2.8 miles (4.5km). Three busy road junctions will be replaced by three overbridges; one bridge at either end at Cardinham and Temple junctions and one relatively centre at Preeze Cross/Four Winds. The dual carriageway is being constructed literally alongside the existing road and traffic management is a key element of the project.

Impact on Your Journey

Regular users of the road will know that there has always been considerable congestion on Fridays through to Mondays, Bank Holidays and of course during the summer holiday period for the past decade. However this should all change when the works are completed.

There is a strictly enforced 40 mph average speed restriction throughout the works as a result of the narrow lanes and for the safety of all road users. It may be interesting to note that the speed restriction should only add a few minutes to your total journey time.


Benefits of the scheme

The scheme will relieve congestion and improve journey times – it will also attract business growth and inward investment to Cornwall by improving links with the rest of England. The new dual carriageway will also be much safer than the single carriageway as a result of the three overbridges.

There will also be job opportunities for local individuals and businesses for the duration of the scheme.

Who are Kier?

We invest in, build, maintain and renew the places where people live, work and play. Kier is all around us… from engineering the tunnels and bridges that transform cities… to keeping the lights shining in our streets… to building award winning homes, schools and hospitals… to keeping our water, rail and highways running smoothly.

Our job is to keep our world working.

Our new ‘A30 Temple to Higher Carblake Newsletter is now available to view.  Please click on November Newsletter 2016 



A30 Junctions



** NEW ** There are no further overnight road closures planned until Monday 30th and Tuesday 31st January 2017.

For CONSTRUCTION / TRAVEL UPDATES please scroll down home page (click on ‘read article’ – click arrows on side of report to view previous articles) 

Please note: In the event of an emergency within the site management area please call 07710 402 810




Construction Updates

  • 28th November 2016

    Kier Travel Update – 28 November 2016

    A30 – Four Winds junction now open

    Please note the junction at Four Winds – Blisland Road/A30 north-side (junction 4 on Kier website plan) is now open for all traffic.

    This includes left and right-turns into and out of the junction with the A30.

    This follows the revised contraflow being introduced over the weekend resulting in the Trewardale/Blisland junction (junction 1 on Kier website plan) now being closed to all traffic.

    Any queries please contact the Kier answerphone service on 07779 439 637 or via email a30bodmin@kier.co.uk

    Read article
  • 21st November 2016

    Kier Travel Update – 21 November 2016 (2)

    Owing to the severe overnight weather at the weekend which caused the cancellation of the proposed traffic management scheme a new date has been arranged for the work.

    Unfortunately the proposed contraflow could not be implemented within the overnight closures as planned; it was deemed too dangerous for the workforce to operate in such severe weather conditions. Crane lifts were also required which cannot operate in high winds.

    The revised dates for the work have now been rescheduled for the forthcoming weekend, Saturday 26th between 9.00pm and 6.00am the following morning (please note the delay in start time due to a function on the diversion route at Camelford)  and Sunday 27th November (between 8.00pm and 6.00am the following morning).

    Until such time as the revised contraflow is implemented the A30 Helland junction and the Trewardale junction (for Blisland and St Breward) will remain open until Monday 28th November 2016.  At this time Four Winds (north-side) will remain closed.

    Kier would like to apologise for any inconvenience caused by this delay. Further updates will be available on the Kier website www.kier-a30cornwall.co.uk when available.  Any queries please contact the Kier answerphone service on 07779 439 637 or via email a30bodmin@kier.co.uk

    Read article
  • 11th November 2016

    Kier Travel Update – 11 November 2016

    A30 – Advance Warning Notice – Temporary Closure of Helland Junction from 21st November 2016

    Following the implementation of a revised contraflow system at the western end of the roadworks please note that Helland junction will be closed to all traffic from Monday 21st November 2016 until the latter end of January 2017.

    This relates to the left turn off-slip for eastbound A30 traffic (for Helland) and the left turn on-slip for the A30 eastbound to Launceston. Early warning signs advising drivers of the change will be erected prior to Carminow Cross junction at Bodmin for eastbound A30 traffic, Drivers requiring Helland are asked to follow diversion signs via Callywith Gate.

    Following the revised contraflow all eastbound A30 traffic will be directed onto the westbound dual carriageway from Helland junction.   This will enable major carriageway works to be completed between the old Trewardale junction (for Blisland and St Breward) and Penlan (Gulf) Garage. As a result of the works the Trewardale junction will be closed to traffic; however the improved junction at Four Winds (Blisland Lane) will be open for all traffic requiring the Blisland and St Breward area from the A30.  Following the opening of the Four Winds junction it will also be possible to turn right into and out of the junction.

    Kier apologise for any inconvenience this revised contraflow may cause. If you have any queries then please contact the Kier answerphone service on 07779 439 637 or via email a30bodmin@kier.co.uk

    Read article


We value your feedback.

“To assist local residents, Kier have opened a ‘Help Desk’ to discuss any clarification on the scheme. Please call our Help Desk number, leave a message, name and email address and we will endeavour to respond quickly. Alternatively, please contact us via email; we welcome all comments.”

Help Desk: 07779 439637

Email: a30bodmin@kier.co.uk