SA Power Networks to commence powerline clearance program

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Starting Monday, 22 June 2026, SA Power Networks will commence its cyclical vegetation clearance program.

These essential works are part of SA Power Networks’ legislative obligation under the Electricity Act 1996 to ensure the safe and reliable operation of South Australia’s power grid.

SA Power Networks is responsible for managing vegetation around overhead powerlines to prevent outages and safety hazards.

While high-voltage and low-voltage lines were previously managed on different schedules, both are now assessed within a unified three-year inspection regime.

The clearance requirements and extent of pruning differs significantly between high and low voltage infrastructure

• High-voltage lines: These require larger separation distances, which can necessitate more substantial pruning, though this is often less noticeable as it occurs higher in the canopy.
• Low-voltage lines: These typically coexist more closely with tree where an acceptable level of risk exists. However, where powerlines are located beneath high voltage conductors on the same poles, particularly in established streets with large mature trees, the combined clearance requirements can result in extensive pruning and a more obvious impact.
• Combined infrastructure: In established streets where both high and low-voltage lines are present on the same poles, the combined clearance requirements can result in more extensive pruning to mature trees.

Council advocacy regarding tree canopy

The Council’s staff recognise that this pruning can occasionally leave street trees appearing unbalanced or aesthetically compromised. While the Council must acknowledge the statutory obligations of SA Power Networks, staff are actively advocating for the best outcome for our local environment.

Before the program began, Council staff met with SA Power Networks and their contractor, Active Tree Services, to emphasise the importance of maintaining tree health, structural integrity, and the beauty of our streetscapes.

Staff continue to hold regular meetings with the project team to monitor works and ensure pruning is performed to the highest possible standard.

In many cases, we have successfully negotiated minor adjustments to pruning methods to better preserve the natural form of our trees while still meeting safety standards.

What to expect in your street

Pruning commences from Monday, 22 June 2026 in Felixstow, Marden and Royston Park. Several crews may be present at any one time undertaking these works.

As crews move through the area, you may see several teams working simultaneously. Much of the vegetation being removed is "regrowth"— new branches that have grown since the last cycle.

Once pruning is complete, debris will generally be stacked on the verge. Active Tree Services has confirmed that dedicated clean-up crews will follow to remove the debris and ensure the site is left neat and safe.

Further information

If you have questions regarding the pruning in your street that are not addressed by this update, please contact the Council on 8366 4555.

Alternatively, you may contact Active Tree Services directly at saadmin@active.com.au or visit, SA Power Networks website: Vegetation around powerlines