The construction phase of Scotland’s biggest waste water tunnel, which will help tackle flooding and improve river water quality in the Glasgow area, has been completed.
A giant state-of- the-art tunnel boring machine (TBM) has spent 15 months creating the 3.1 mile-long sewer beneath the south of the city and last night “broke through” in Queen’s Park.
The construction of the tunnel, which runs from Craigton to Queen’s Park via Bellahouston and Pollok parks, is a major milestone for one of the most important pieces of waste water management infrastructure installed in Glasgow since Victorian times.
With this key phase of the £100m project now complete, further construction and ancillary work will be carried out including work to connect the tunnel to the existing waste water network before the tunnel becomes operational next summer.
The 1000-tonne TBM, which is longer than 14 buses and was named Daisy the Driller by a Glasgow schoolboy, began its mammoth task beneath Glasgow’s south-side in July 2016.
As life above ground in the Queen’s Park area continued as normal in the darkness and rain late last night, the TBM completed the installation of the last of more than 3200 concrete rings that form the tunnel before its giant cutting head emerged at the bottom of a 16 metre-deep shaft to cheers and applause from some of the workers involved.
Welcoming the landmark moment in the project, Douglas Millican, Scottish Water’s Chief Executive, said: “We are delighted to have completed the construction phase of the Shieldhall Tunnel, which is the flagship project in Scottish Water’s investment in the waste water infrastructure in the Greater Glasgow area – the biggest in well over a century.
“The tunnel will improve water quality in the River Clyde and reduce the risk of flooding in a number of communities. As the Greater Glasgow area continues to develop, we are modernising our waste water infrastructure to support the needs of both existing and future customers.”
Dominic Flanagan, Scottish Water Project Manager, added: “Many hundreds of people have worked as part of Costain VINCI Construction Grans Projets Joint Venture (CVJV), which was set up to deliver the tunnel, to get us to this point. Building the tunnel has required a wide range of specialist skills, knowledge and expertise and our workforce has included local contractors and those with international experience and backgrounds.
“We are all enormously proud of what we have achieved for the good of the people of Greater Glasgow.”
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