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Costain and Vinci JV wins £86m Scottish Water deal

A joint venture between Costain and Vinci Construction has been appointed to build an £86m wastewater tunnel for Scottish Water in Glasgow.

The Shieldhall Tunnel will be Scotland’s largest wastewater tunnel, at 4.7 m in diameter and 3.1 miles long.

It will run between Queen’s Park and the Craigton industrial estate and will resolve water quality and reduce flooding issues in the area served by the Shieldhall Waste Water Treatment Works.

Work to build the new tunnel will form part of the biggest upgrade of Glasgow’s wastewater network in more than a century.

The Costain and Vinci joint venture will start work this month, with the tunnel due for completion in early 2018.  

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