The construction of the dual carriageway on the A30 between Temple and Higher Carblake has reached a major milestone with a series of bridge lifts taking place at the site.

Over the next month three bridges - at Preeze Cross, Temple Tor and Cardinham - will be installed over the main carriageway during a series of overnight road closures.

With the steel beams each ranging in weight between 50 and 70 tonnes, a specialist crane had to be constructed at the site to lift them into place. The Liebherr crawler crane is capable of carrying up to 350 tonnes and was brought to Cornwall on 13 articulated lorries.

Each bridge takes around a week and a half to two weeks to install with the crawler crane taking on the heavy beam lifting work and smaller cranes lifting the deck slabs and precast concrete parapets.

The bridges will connect with new junctions being created from the new dual carriageway and it is hoped will be open to the public by January 2017.

The overnight closures between Temple and Higher Carblake have been scheduled to avoid weekend and commuter traffic and are in place from 8pm to 6am between Sunday evenings and Friday mornings.

During the closures, motorists will be diverted along the A39 and A395 - the standard Highways England ’diamond’ diversion route for all through traffic when this stretch of the highway is closed.

Overnight closures (8pm to 6am) will be in place between:

8pm Sunday, June 26 and 6am Friday, July 1

8pm Sunday, July 3 and 6am Friday, July 8

8pm Sunday, July 10 and 6am Friday, July 15

8pm Sunday, July 17 and 6am Friday, July 22

A short film about the bridge lifts can be seen by following the YouTube link.