The project demonstrated a net improvement to operational water quality from stormwater runoff that flows into the Brisbane River, which flows into the Brisbane River and Jindalee Creek. This was enabled by retrofitting stormwater treatment for existing pavements and the inclusion of a permanent water quality treatment train comprising of swales, vegetated buffer strips, bioretention basins, and gross pollutant traps for litter and sediment removal.
A 15 percent reduction in material lifecycle impacts was achieved. Initiatives included retention of the existing bridge substructure and foundations while modifying the deck beams and slab, galvanising large beam sections to reduce re-applications of paint coatings over the operational phase, reductions in pile and column volumes due to design reconfigurations, and resurfacing of existing pavements.
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