Saunders Aqua Metro is delivering a critical infrastructure upgrade on behalf of Greater Western Water to support Melbourne’s growing population and ensure long-term reliability of sewerage services in the CBD.

The project involves constructing approximately 750 metres of new sewer pipeline beneath Flinders Lane, Spencer Street, Siddeley Street and Wurundjeri Way and the construction of five new shafts (8-12m deep) along the new sewer alignment.

Once complete, the new infrastructure will double the capacity of the existing sewer network – originally built in the late 1800s – and futureproof the system for decades to come. This upgrade is part of a broader investment in sustainable, resilient water infrastructure for inner Melbourne.