Starting from April 2025, geotechnical investigations commenced at Calliope River Substation and along the easement alignment, following appropriate measures to protect cultural heritage values in the area.

These early works will help to inform our planning and assessment activities. Main construction works for the transmission line are expected to start in mid-2026. However this will depend on the progress and outcome of the formal approval process, which is currently underway.

Geotechnical works involve collecting soil samples to help us understand soil type and other ground components. This informs the engineering design and construction methodology.

Powerlink has engaged CMW Rockhampton to carry out the geotechnical investigations at the substation, and Civil Group Australia to undertake specialist drilling along the easement alignment. Early works are expected to take several months to complete, weather and site conditions permitting.