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Shieldhall Tunnel, Glasgow, United Kingdom

VINCI Construction Grands Projets, working in a 50-50 joint venture with Costain, is building the Shieldhall Tunnel in Glasgow, United Kingdom, for Scotland’s public water systems operator Scottish Water.

The structure, Scotland’s largest wastewater storage tunnel, is designed to improve water quality and forestall the risk of flooding and improve water quality in the River Clyde.

The €105 million contract covers construction of two 15 metre diameter shafts with a depth of 20 metres, a 300 metre long cut-and-cover and a 5 km tunnel with an inside diameter of 4.70 metres.

Successful start of the Daisy tunnel boring machine

In July 2016 VINCI Construction Grands Projets began underground tunnel boring works in Glasgow. Daisy, the most recent addition to its family of earth pressure balanced shield tunnel boring machines, began work by safely boring through former coal mines.

Handover of the structure is scheduled in early 2018.