Bruce Highway – Maroochydore Road Interchange Project

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Road capacity at Maroochydore in the Sunshine Coast
Priority Project
Infrastructure Category
Proposed By
Queensland Government
Near term (0-5 years)
Sunshine Coast, Queensland
location of the project

Problem to be addressed

The Bruce Highway is part of the National Land Transport Network (NLTN) and is the major coastal road transport route between Brisbane and Cairns. On the Sunshine Coast, Maroochydore is connected to the highway via Maroochydore Road – a major east–west link for tourists and commuters. Just 420 metres south of where the Maroochydore Road intersects the highway, Mons Road connects to the highway and provides access for the residential suburb of Mons.

The Maroochydore Road and Mons Road interchanges are congested during peak periods, a problem which is partly due to the short distance between the interchanges. The configuration of this section of the highway also leads to drivers rapidly accelerating and slowing down at entry and exit ramps, which causes unstable traffic flows. This has led to a high number of accidents, with the crash rate in the project area reported to be more than twice the Bruce Highway average.

Project description

The Bruce Highway Maroochydore Road Interchange Project aims to address the congestion and safety issues at both interchanges by upgrading the Maroochydore Road interchange, reconfiguring entry and exit ramps at Mons Road, constructing new service roads and widening the Mons Road underpass.

Economic, social and environmental value

The Queensland Government’s business case states that the net present value (NPV) of the project is $529 million, with a benefit-cost ratio (BCR) of 3.21, using a 7% real discount rate and P90 capital cost estimate. Infrastructure Australia has evaluated the business case and is confident that the benefits of the project will exceed the costs. The project demonstrates strong strategic merit and the proponent’s proposed delivery model is appropriate.