Tunnel is 3.1 miles long and wide enough to fit a bus in!

Cabinet Secy Keith Brown at opening to Shiedlhall tunnel
Cabinet Secy Keith Brown at opening to Shiedlhall tunnel

Keith Brown MSP, the Cabinet Secretary for Infrastructure, was in the southside to see how work is progressing on the biggest waste water tunnel to be built in Scotland.

The £100m tunnel in south west Glasgow, which at 3.1 miles long will be five times longer than the Clyde Tunnel, and at 4.7 metres in diameter big enough to fit a double decker bus inside.

It is a key part of Scottish Water’s £250m programme of work to improve river water quality.

The programme is the biggest investment in the area’s waste water infrastructure in more than a century.

Mr Brown visited the Shieldhall Tunnel project at the Craigton industrial estate and saw work progressing on preparations to enable the tunnelling to start.

The first 250 metres of the tunnel, and the launching chamber, are being built using the open cut technique, involving excavation between concrete piled walls bored into the bedrock.

This work will enable a state-of-the-art Tunnel Boring Machine (TBM) to be launched and start construction of the main part of the tunnel.

The 1000 tonne, 180 metre-long tunnel boring machine (TBM), is expected to arrive in a few weeks and then begin constructing the tunnel between Craigton and Queen’s Park.

When complete, it will provide 90,000 cubic metres of extra storm water storage, the equivalent of 36 Olympic-sized swimming pools.