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A30 Temple to
Higher Carblake
improvement scheme


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.

We are currently working on our new ‘A30 Temple to Higher Carblake Newsletter.  Meanwhile the October Newsletter 2015 is attached for your perusal.



A30 Junctions

Construction Updates

  • 24th May 2016

    Kier News Update – 23 May 2016

    Reminder – Cancellation of Kier ‘Drop-In’ Session

    Please note the next scheduled ‘Drop-In’ session for Thursday 26th May 2016 at Bodmin Airfield has been cancelled.

    The next available session will be held on Thursday 9th June from 10.00am until 1.00pm.

    Alternatively if your enquiry is urgent then please contact Mick Martin, Kier Liaison Officer via email michael.martin@kier.co.uk or telephone 07790 560 809.

    Read article
  • 12th May 2016

    Kier Work/Travel Update – 12 May 2016

    A30 – Traffic arrangements in preparation for Spring Bank Holiday

    Pease be aware of a revised traffic management scheme which coincides with the forthcoming Spring Bank Holiday on Monday 30th May and school half-term week.

    To help facilitate the flow of traffic on the A30 and to allow for the safe movement of local traffic the ‘No Right Turn’ restrictions will be reintroduced within the site area during the night of Thursday 26th May.

    All restrictions will be reviewed following the holiday period.

    Turning restrictions will be implemented at the following junctions (the junction numbers refer to the location on the Kier website plan).

    • Helland junction – to remain closed as a result of current contraflow
    • Higher and Lower Carblake (Junction 3) – ‘No Right’ turn into or out of junction
    • Four Winds (Junction 4) north-side – ‘No Right’ turn into or out of junction (Millpool Lane on south-side will remain closed)
    • Trethorne Lane (Junction 7) ‘No Right’ turn into or out of junction
    • Temple Fishery layby (Junction 8) ‘No Right’ turn into or out of junction
    • Temple Tor (Junction 9) – aka Temple Four Turnings – North and south-side of junction to remain closed to A30 traffic  

     Main advisory diversion routes for local A30 traffic are:-

    For eastbound A30 traffic requiring to turn right – continue east to Bolventor (Jamaica Inn) and return via A30

    For westbound A30 traffic requiring to turn right – continue west to Bodmin off-slip and follow diversion signs and return via A30

    Local traffic – Blisland area north of A30 – advisory alternative route via Shell Woods if travelling to or from Bodmin (other routes are available).

    Cardinham area south of A30 – advisory alternative route via Fletcher’s Bridge (other routes are available).

    For local traffic wishing to travel to or from the Bodmin area – advisory diversion routes are via Shell Woods or alternative if travelling on north-side of the A30 (Blisland side) – or via Fletcher’s Bridge or alternative if travelling on south-side of the A30 (Cardinham side).

    Kier apologise for the inconvenience these diversions may cause. Further updates and information are readily available on the dedicated Kier website www.kier-a30cornwall.co.uk  


    Read article
  • 3rd May 2016

    Kier Travel Update – 3 May 2016

     A30 – Warning of extra wide-loads 6.00pm Tuesday 3rd May and 6.00pm Thursday 5th May 2016

    Please note there could be severe delays in both directions on the A30 at Temple from approximately 6.00pm on Tuesday 3rd and 6.00pm Thursday 5th May 2016.

    Two extra wide-loads are programmed to pass through the roadworks on the above dates. To facilitate the safe transit of the loads both traffic lanes need to be closed at either end of the traffic management. Remedial barrier work will then need to take place prior to the loads moving off.

    Kier would like to apologise for the inconvenience these movements cause.

    If you require further information please contact Kier’s Public Liaison Officer, Mick Martin via email michael.martin@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