The sewer system is aimed at improving the waste water collection and tackle flooding in the south side of Glasgow.
Scottish Water have confirmed the tunnel will be 3.1 miles long running between Queen's Park and Craigton industrial estate via Pollok and Bellahouston parks in Glasgow's southside. the tunnel is expected to be 15ft 3ins (4.65m) in diameter and will be five times as long as the Clyde tunnel and large enough to fit a double decker bus inside. The work is expected to take three and half years to complete and will be part of Scottish Waters 5 year program worth 250m to upgrade Glasgow's waste water network.
Geoff Aitkenhead, Scottish Water’s asset management director, said: “Following the launch in February of our five-year programme of investment to transform the Greater Glasgow area’s waste water infrastructure, we are delighted to be able to confirm this key part of the programme.
Deputy First Minister Nicola Sturgeon, Cabinet Secretary for Infrastructure, Investment and Cities, said: "The improvement of Glasgow's sewerage network is essential to its future economic growth, a cleaner environment and to resolve long-standing flooding issues.
“In February 2013, we announced a £250m package of investment that will transform an ageing network into a modern and sustainable drainage network fit for the needs of 21st century Glasgow. The Shieldhall tunnel is an essential part of this project.
"Investment such as this ensures that Scottish Water can continue to deliver excellent services to the people of Scotland. Scottish Water is providing one of the best value-for-money water and sewerage packages in the UK, to the continuing benefit of households and businesses throughout Scotland."
An extensive community engagement program will be organised to consult the potential communities affected by the works.
Source: Stv News: Herald Scotland