A major step for the A9 Dualling: Tay Crossing to Ballinluig project will take place later this month as precast concrete beams are installed for the new Guay Overbridge.

Twelve precast beams will form the first stage of the bridge deck, which, once complete, will maintain access for local residents, businesses and landowners across the future dual carriageway.

Using a specialist crane, beams up to 33.5 metres long and weighing as much as 84 tonnes will be lifted into position during carefully planned overnight operations.

Transport Scotland Project Manager, Ruth Whillis, said: "The installation of the Guay Overbridge beams is an important step forward for the Tay Crossing to Ballinluig project and a visible sign of construction progress.

"Planning this major milestone has taken months of preparation and teamwork between designers, engineers, contractors and stakeholders. The successful delivery of a project of this scale requires the combined efforts of many people working together.

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"The beam installation is a complex engineering operation requiring detailed planning, specialist equipment and close coordination. We are grateful to local communities and road users for their patience while this essential work is carried out."

To carry out the lifts safely, the A9 will be closed overnight between the Tay Crossing and Kindallachan from Monday 30 November until the morning of Saturday 5 December, between 9pm and 5am each night. Road users will be able to travel through the works during amnesty periods between 11pm and midnight and between 2am and 3am, when lifting pauses.

The closure is necessary because beams must be placed over and adjacent to the live carriageway. Access for emergency services will be maintained throughout the works.

Wills Bros Contractor's Representative, John Stephens, said: "This is one of the most complex lifting operations undertaken on the project to date.

"A full road closure is required because it is not possible to safely lift and position beams of this size above live traffic. The works have been carefully planned and scheduled overnight, when traffic volumes are lower, to help minimise disruption.

"The amnesty periods will provide opportunities for traffic to pass through the works area while enabling the beam installation to be completed efficiently and safely."