Ellenbrook Nutrient Stripping Wetlands

Building Management & Works and Swan River Trust

Ellenbrook, Western Australia, Australia

This project involved design and documentation of a nutrient stripping wetlands system on a 1.2km stretch of the Ellenbrook tributary to the Swan River. As lead consultant, Calibre worked closely with Swan River Trust to develop the scheme from an initial concept plan for a wetlands rehabilitation of the existing watercourse through to construction.

Calibre's team provided civil engineering and water and environment services. Key elements included:

  • Building 3D modelling of the entire project area
  • Cut and fill balancing, dewatering and acid sulphate management
  • Hydraulic modelling of river channel
  • Design and documentation of nutrient stripping basins, including ironmangypsum treatment
  • Incorporating environmental criteria and bio-engineering requirements
  • Pumping system with pressurised water distribution
  • Inlet and outlet flow control structures to basins
  • Electrical power supply