North Yarra Main Sewer – (Diversion) Melbourne


NYMS part of the West Gate Tunnel Project in Melbourne.

A joint venture between CPB and John Holland to relocate a 120 year old hand laid brick sewer for the new West Gate Tunnel Project road tunnel TBM’s.

The pipe jack slurry TBM will be launch from the main shaft and drive upstream 260 metres to a new connection shaft, recovered and relaunched again from the main shaft to drive 460metres to the downstream connection.

Maximum working pressure approximately 1.5bar.