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Thu June 24 2021

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Barhale secures second Tideway flume award

10 Dec 20 Civil engineering contractor Barhale has secured a second flume construction commission on the Thames Tideway Tunnel.

Inside the previously completed flume pipe at the Thames Tideway Victoria Embankment foreshore site
Inside the previously completed flume pipe at the Thames Tideway Victoria Embankment foreshore site

Ferrovial Construction and Laing O'Rourke joint venture (FLO), the principal contractor for the 12.7km central section of the 25km Thames Tideway Tunnel, has appointed Barhale to carry out the works at the Blackfriars Bridge foreshore site.

It follows on from the delivery of a similar contract at Tideway Central’s Victoria Embankment foreshore site further west and entails the installation of a flume inside the existing Victorian low-level sewer within the Thames river wall.

The pipe will be made up of 41 rings of 10 individual steel segments, fabricated by Barhale subsidiary BCS Group. It will carry the flow of the sewer during construction works and will allow future breakthrough to connect the sewer to the Thames Tideway tunnel.

Filipe Mello, Barhale’s contracts manager at Blackfriars Bridge foreshore, believes that the contract award from FLO recognised that the earlier flume installation was completed ahead of schedule.

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“While we undoubtedly took a lot of expertise and experience to the Victoria Embankment site, we also gained a great deal of insight which we will take to Blackfriars,” he said. “This is a challenging project that requires us to work inside the harsh and restrictive live environment of the existing Victorian sewer. It also presents severe logistical considerations. We will have to work at night and with access to the sewer often limited to tight three-hour periods.”

He added: “The flume will be an important step in the continued progress at the Blackfriars Bridge Foreshore site and will help to bring the completion of the wider project to clean up the Thames for future generations a little closer.”

Completion is scheduled for May 2021. Contract value was not disclosed.

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