Centenary Motorway Upgrade planning
The department is developing a masterplan to upgrade the Centenary Motorway corridor between Darra and Toowong. This initiative aims to improve safety, travel times and meet growing transport needs.
Centenary Motorway (Yamanto – Ellen Grove) and Springfield Greenbank Arterial exit ramp, upgrade intersection
The department worked with Ipswich City Council to upgrade the Centenary Motorway exit ramp (Exit 32), and the Main Street and Springfield Greenbank Arterial Road intersection, to manage congestion and improve safety at the exit ramp.
The upgrade replaced the existing Centenary Motorway exit ramp with 2 through lanes and 2 left-turning lanes on the approach to the roundabout on Springfield Greenbank Arterial Road. Adding more lane options on the exit ramp helps manage congestion and improves traffic flow and safety.
At the intersection, the existing right-turning movement has been removed to:
- optimise performance of the signalised intersection
- improve reliability in travel times
- enhance safety for all road users.
Alternative routes are available, including using the motorway exits 31 or 33.
Ipswich City Council constructed the upgrade on the Department’s behalf in conjunction with the Springfield Greenbank Arterial Road duplication.
Benefits
- Improves safety
- Increases capacity
- Increases traffic flow
- Reduces peak hour congestion
- Reduces interchange queuing
- Reduces travel time
Key features
- Additional lanes to avoid congestion and queueing for traffic exiting the motorway
- 2 new through lanes and 2 new left-turning lanes
- Connection to new signalised intersection to replace roundabout.
Funding
This project was fully funded by the Queensland Government under the State Road Network Upgrades. Investment ID 2384566
- Total investment
- $6.5 million
- Queensland Government
- $6.5 million
Current status
The upgrade is complete. The signalised intersection became operational in December 2024, with the duplication of the exit ramp completed in March 2025.
Centenary Motorway (Yamanto – Ellen Grove) and Springfield Greenbank Arterial exit ramp, upgrade intersection location map
