The North South Interconnection System Project consists of a range of works to 'connect up’ our northern and southern water supply networks.

Adelaide’s water supply system is roughly split at the River Torrens into a northern system (supplied through the Hope Valley and Anstey Hill Water Treatment Plants) and a southern system (supplied through the Happy Valley Water Treatment Plant). These works will allow SA Water to move water across one connected system - improving water reliability for Adelaide. Water from the Adelaide Desalination Plant will also be distributed throughout the whole water supply network system from 2012.

This project is an important component of the State Government’s Water for Good strategy to secure water for the future.

What's happening now?

SA Water has been working with communities to develop a construction plan that best balances the functional and operational requirements of the public infrastructure with relevant local area Development Plan provisions and stakeholder ideas. A range of community meetings and information sessions have been held to provide input in to the planning of this project.

SA Water recognises the value of this project in securing Adelaide’s future water supply and that working with the local communities will help us deliver acceptable design solutions.

The project consists of the following elements:
Pipelines

• Central Pipeline (Gilberton to Hope Valley)
• Eastern Pipeline (Clapham to Wattle Park)
• Northern Pipeline (Nelson Road)
• Western Pipeline (Grange Road)

Pump Stations

• Clapham Pump Station
• Wattle Park Pump Station
• Gilberton Pump Station

Other

• Northern Pressure Reducing Valve Station (Gulfview Heights)
• Seacliff Park Mini Hydro and Pressure Reducing Valve Station
• Terminal Storage Pressure Sustaining Valve Station (Hope Valley)
• Wattle Park Pressure Sustaining Valve Station
• Smaller upgrades to the metropolitan network.

All work packages have completed the detailed planning phase and are now progressing to construction. 
 
For more detail please call the North South Interconnection System Hotline on 08 8405 4278.