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Bruce Highway (Brisbane - Gympie), Buchanan Road to Caboolture-Bribie Island Road upgrade, business case

The department is planning to upgrade the Bruce Highway from Buchanan Road, Morayfield to Caboolture-Bribie Island, Caboolture.

The planning will identify and assess a long-term solution to meet future traffic growth, reduce congestion and improve efficiency, safety and flood immunity.

Options are being investigated to either add an additional northbound and southbound lane; or add 1-way, 2-lane collector-distributor roads on both sides of the highway between Uhlmann Road and Caboolture-Bribie Island Road.

Widening into the median in this section is challenging because of the significant number of merges and lane changes that occur in this section, generated by the proximity of the Uhlmann Road, Buchanan Road and Caboolture-Bribie Island Road interchanges and service centres.

Separating shorter local trips from highway traffic reduces weaving associated with traffic entering and exiting the highway, allowing the highway to operate more efficiently.

The project also includes active transport facilities along the Bruce Highway with connections to local networks.

Benefits

Improves safety
Increases capacity
Improves network efficiency
Increases traffic flow
Reduces peak hour congestion
Reduces interchange queuing
Improves flood immunity
Accessibility
Reduces travel time
Contributes to economy
Contributes to regional growth
Better active transport

Key features

Both options provide for reduced travel times, improved traffic flow and safety by:

upgrading the existing Buchanan Road and Caboolture-Bribie Island Road interchanges
upgrading the Bruce Highway bridges over Caboolture River
upgrading the Caboolture-Bribie Island Road between the Bruce Highway and Pasturage Road
upgrades to the Bruce Highway bridges over the Caboolture River to improve flood immunity
providing for active transport facilities from Buchanan Road to Caboolture-Bribie Island Road, with connections to local networks.

Funding

Planning for this project is jointly funded by the Australian and Queensland governments on an 80:20 (federal:state) basis. Investment ID 2348820

Funding for the completion of detailed design and construction of this upgrade has not been committed at this time. The work will be considered in the future, after assessment of competing priorities and depending on funding availability.

Due to the interdependent nature of these 2 consecutive sections, the Uhlmann Road to Buchanan Road and the Buchanan Road to Caboolture-Bribie Island Road business cases will be completed as 1 planning study.

Total investment: ^$12 million

Australian Government: ^$9.6 million

Queensland Government: ^$2.4 million

Current status

Planning commenced in early 2023 and is expected to be completed by late 2024.

Community consultation

Community feedback provided during October and November 2023 will inform ongoing investigations.