Charges center around unsafe installation of acoustic barriers that came to light during investigation into the Polcevera viaduct collapse

Atkins, Jacobs, BAM Nuttall and Laing O’Rourke are part of group that says it has developed a production line process to reduce construction risks.

The completed deal in Italy follows the acquired firm's bankruptcy filing in 2017.

Experts at industry conference in London noted developing capacity in emerging economies and need to commercialize deep-water wind power technologies.

Auckland's City Rail Link, set to finish in 2024, has struggled with a major cost hike and bankruptcy of a leading contractor.

Pandemic-related costs could push total higher

The estimated $5-billion restoration of the 19-century landmark was approved in 2018, but the organization responsible for overseeing work was begun only in April.