The 747m long structure is the largest bridge on a new 27km bypass to the west of the scheme which is set to open to traffic next year. Sixty four piers extending up to a depth of 30m support 17 spans that make up the bridge deck, which is comprised of steel beams and concrete slabs. A time lapse video showing construction of the bridge since it began in November 2016 can be viewed here.

A prefabrication yard on site has helped the team to complete the viaduct structural work at £4 million less than expected, while also making it safer for the workforce by reducing the time needed to work at height.

When the new A14 fully opens by December 2020, the bridge will help to reduce journey times on the road by up to 20 minutes.

Construction director Willie McCormick says that 34 new structures are being built for the A14 improvement, of which nine are open to traffic. Three quarters of the project is taking place off line, away from the existing road. He adds that the upgrade promises benefit for 85,000 vehicles a day who drive between Cambridge and Huntingdon.

The A14 Cambridge to Huntingdon improvement scheme is being delivered on behalf of Highways England by a joint venture of contractors and design consultants: Balfour Beatty, Costain, Skanska, Atkins and CH2M. The delivery team is known as the A14 Integrated Delivery Team.

(Photograph: Highways England)