Innovation Diverging Diamond Intersection at Bald Hills!

We are delivering this upgrade to the interchange at Strathpine and Gympie Arterial Road. I get a lot of questions about this intersection so check this map out below, or the below link for more details on the design.

Bald Hills residents have been telling me how congested and dangerous this intersection is, so we are taking action.

This $30 million jointly funded transformation will turn this interchange into a diverging diamond, an innovative intersection design that will reduce congestion, improve travel times and address safety concerns.


Innovative Diverging Diamond Design

The design will transform this interchange into a diverging diamond interchange, an innovative intersection design that will reduce congestion, improve travel times and address safety concerns.

The new interchange, while unfamiliar to Australian drivers, will be easy to navigate and we will engage with road users to help drivers understand how to navigate the intersection.

We will keep the local community informed as the project progresses.



  • Improves safety
  • Increases capacity
  • Reduces travel time
  • Reduces peak hour congestion
  • Contributes to economy
  • Contributes to regional growth


Key features

  • Right-turning traffic does not have to give way to opposing traffic making the intersection both safer and more efficient.
  • A diverging diamond interchange is cost-effective to construct and has less impact on local residents compared to a traditional interchange because it requires a smaller footprint
  • The Strathpine Road and Gympie Arterial Road diverging diamond interchange will be the second in Queensland, with the Caloundra Road and Bruce Highway (QLD) diverging diamond interchange being the first.



The Australian Government, under the Urban Congestion Fund, committed to jointly fund (50:50) $30 million for the Gympie Arterial Road and Strathpine Road interchange upgrade with the Queensland Government.