News

Balhannah Intersection Upgrades

1 September 2025

The Department of Infrastructure and Transport (DIT) are constructing a single-lane roundabout at the intersection of Onkaparinga Valley Road, Junction Road and Nairne Road, Balhannah.

Major works are commencing from early September 2025, with project completion expected in mid-2026, weather permitting.

They are also upgrading the junction of Junction Road, Jones Road, and the railway crossing, with new line marking and signage.

This work will be undertaken concurrently with the roundabout.

These upgrades are funded under the $150 million Adelaide Hills Productivity and Road Safety Package, which is jointly funded by the Australian (80%) and South Australian governments (20%) over five years.

To find out more, please view the information sheet below: