Largest Scottish wastewater tunnel reaches halfway stage

Construction of the biggest wastewater tunnel in Scotland has reached the halfway stage. The £100 million Shieldhall Tunnel, being built by Scottish Water and 3.1 miles long, is expected to […]

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By Priyanka Shrestha

Construction of the biggest wastewater tunnel in Scotland has reached the halfway stage.

The £100 million Shieldhall Tunnel, being built by Scottish Water and 3.1 miles long, is expected to improve water quality in the River Clyde and tackle flooding.

Last week, engineers installed a set of the giant concrete rings that form the tunnel around 10 metres under the east of Pollok Park at a point that is 1.55 miles along the route.

The first half of the tunnel would be able to store the equivalent in wastewater of 18 Olympic-sized swimming pools.

According to Scottish Water, more than 90% of the excavated material will be recycled.

The project is part of the company’s £250 million, five-year programme to improve air quality and the natural environment.