The Melbourne Main Sewer Replacement, involving the construction of approximately 2.3 km of new sewer in central Melbourne, is now complete.
Most project work to construct the new sewer tunnel took place using a tunnel boring machine (TBM) housed 10 m below ground.
The TBM was 103 m in length, weighed 164 tonnes, as was used to tunnel through a variety of ground conditions, excavating materials including Coode Island silt, Port Melbourne sand and basalt clay.
The new sewer tunnel runs south from the Yarra River to Fennell Reserve and through to Swallow Street, where it will connect into the Hobsons Bay Main.
The project cost an estimated $A220 million to complete.
Image caption: The Melbourne Main Sewer Replacement sewer tunnel.
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