Cardno has been engaged for our civil engineering expertise and project management capabilities. We have been commissioned to provide conceptual and detailed design for civil engineering components, including the design of bulk earthworks, trunk roadworks, stormwater drainage and water quality treatment, trunk water supply infrastructure, trunk sewerage infrastructure and a sewer pump station.
It is our expertise in water treatment which has come to the fore on this development. The site has significant water quality constraints as it is upstream from Ramsar* wetlands which are part of Moreton Bay, home to migratory birds and adjacent to bushland which contains rare, endangered frog species.
This means the treatment, and subsequent quality of storm water run-off which enters the wetlands must be ‘world’s best’ ‒ and Cardno has made it better than that. Through the development of a unique storm water treatment train, incorporating street-scape rain gardens, ‘end of line’ wetlands and bio-retention, we have significantly increased the quality of the storm water run-off reaching the wetlands.
Thanks to Cardno innovation, the water flowing into the Bells Creek catchment, which in turn drains into the Ramsar wetlands, has been designed to be much cleaner than the Australian Standards for storm water pollutant load reduction.