Melbourne Water has contracted Thiess Black and Veatch to reline a 230 metre section of the North West Sewer and rehabilitate two connecting manholes.

The North West Sewer transfers wastewater from Melbourne’s inner north-western suburbs to the Western Treatment Plant via the Western Trunk Sewer at Brooklyn. This section of this sewer, at Montgomery Park, is corroded and has a significant risk of failing.

Work sites are expected to be ready in early July 2015.

Construction work is expected to be completed by November 2015, weather permitting.

This project will be completed in two stages, the first being relining of the existing underground sewer and rehabilitating the two sewer manholes.

Sewer relining work will require completion without shutting down the sewer This means works will take place when there are minimal flows to allow for safe pipe lining installation.
Works will be undertaken at night to ensure workers’ safety.

The bulk of the works occurs 20 metres below the surface within the manholes and the sewer itself.

Rehabilitating manholes work will be completed during the day, and is expected to be completed by November 2015.

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