The new wastewater pipeline will run mostly underground between Chelmsford Avenue, Naremburn and Anzac Park, Cammeray. Most of the pipeline will be built using microtunnelling, which allows new pipe to be installed underground without digging a continuous trench along the route. Temporary work sites will be needed to support tunnelling and connect the new infrastructure to the existing wastewater network. Some local connection works will be completed using smaller-scale tunnelling and open trenching. Based on current planning, proposed work sites are located at Anzac Park, West Street, Chandos Street, Waters Road, Naremburn Park, Francis Street and Chelmsford Avenue.

Temporary worksites are needed to support microtunnelling and connect the new wastewater pipeline to Sydney Water's existing wastewater network. They provide space for construction equipment, materials and worker facilities needed to safely build the project. Each site will be designed for its specific role and may include site sheds, amenities, secure fencing, equipment and pipe storage, work vehicles, cranes, excavation equipment and connection works. Locating equipment close to the work helps construction run safely and reduces unnecessary vehicle movements.

Potential worksite locations were identified during early project planning and assessed in consultation with local councils and other landowners. When selecting locations, we considered safety, access for construction vehicles, environmental impacts, existing land use and potential impacts on the community. Other locations were also assessed but were not considered suitable due to safety, environmental, operational or community constraints. 

ANZAC Park has been identified as a proposed worksite because it is where the new wastewater pipeline will connect to the existing Northern Suburbs Ocean Outfall Sewer (NSOOS).

What you notice will depend on whether you live near a worksite, a local connection area or the tunnel alignment. You may notice construction equipment and vehicles, truck movements, noise, vibration, dust, temporary fencing and changes to traffic, parking, pedestrian access or cycling routes. Most of the main pipeline will be built underground, although some connection works will require open trenching. We will provide local information before work starts so residents and businesses know what to expect in their area.

We will implement measures to help minimise impacts on the community, including:

• plan work to limit noise and disturbance, including using quieter equipment, noise reduction measures and locating equipment away from homes where practical. 

• give nearby residents and businesses advance notice of higher-noise work, out-of-hours activities and changes that may affect local access. 

• keep traffic moving as safely as possible by using approved truck routes, traffic controls, clear signs and alternative pedestrian routes where needed. 

• keep work areas as small as practical, protect trees where possible and restore affected areas when construction is complete. 

• manage dust, stormwater and sediment to help protect nearby properties, streets and waterways, with controls checked regularly. 

• respond to local concerns as work progresses and adjust site arrangements where to reduce impacts.