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Tunnel construction complete on Scotland's biggest sewer - time lapse

Time lapse footage of the Shieldhall Tunnel breakthrough.

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 tunnel or sewer beneath the south of the city and last night “broke through” in Queen’s Park.

Time lapse footage of the Shieldhall Tunnel breakthrough