The Queensland Government is planning to duplicate the Sunshine Motorway between David Low Way to just north of Yandina-Coolum Road.
This project aims to increase the motorway's capacity from 2 to 4 lanes to accommodate future growth, enhance safety, improve connectivity, and increase efficiency.
During the early planning phase, provisions for active transport infrastructure, such as bike riding and walking paths, were considered. The project also includes an evaluation of potential improvements to the Yandina-Coolum Road roundabout.
The planning phase is an important part of the project. It will investigate the proposed option in greater detail, including the design, construction costs, and potential future construction staging.
Community feedback received during the preliminary evaluation phase will be used to further develop the proposed option during the current planning phase.
The timelines for detailed design and construction have not been determined and will depend on the availability of funding and the prioritisation of competing infrastructure projects across Queensland.
The business case planning for this project is fully funded by the Queensland Government. Investment ID 2683782
Queensland Transport and Roads Investment Program (QTRIP) 2024-25 to 2027-28
Consultation on the preferred option was undertaken in January and February 2023. The preliminary evaluation is nearing completion.
Last updated: 4 December 2025
The Queensland Government is planning two new south-facing motorway ramps at West Coolum Road, Mount Coolum as part of a broader staged approach to upgrading the Sunshine Motorway.
Construction for a project to replace the roundabout with a signalised intersection has been completed.
