Coffs Harbour to Koolkhan Wood Pole Replacement

The existing transmission line (Line 96H) was first commissioned in 1966 and stretches approximately 80km between TransGrid’s Coffs Harbour and Koolkhan Substations. 

  • Why is TransGrid undertaking this work?

    A condition assessment of the line identified that the existing wooden poles would need to be replaced to ensure the ongoing safety and reliability of the network.

  • What does the project involve?

    It is proposed that the twin wooden pole structures and steel cross arms would be replaced with new single concrete pole structure and new cross arm. 

    The project also involves installation of  optical ground wire (OPGW) along the existing length of the transmission line. This cable performs the conventional task of providing the electrical ground wire of the network whilst the optical fibres within the cable create an independent telecommunications system. All this work relates only to existing transmission lines.

  • What are the next steps?

    ​We are still working on the early stages of the planning process and site access requirements for this work.

    It is anticipated that construction works will begin early 2016 and be completed by December 2017.

  • How can I get more information?

    ​You can contact our Community Engagement team on 1800 222 537 or