Stage 4 Residential Development

  • Location | Springbrook, Moreton Bay Region, QLD

Hydraulic Assessment Springbrook

A Hydraulic Impact Assessment was carried out to support the development application of a site subjected to Moreton Bay Regional Council (MBRC) flood hazard overlays, overland flow paths, and environmental (waterways) overlays.

The development site, being a 34.8ha lot with a local creek passing through, had multiple proposed internal waterway crossings as well as pre-existing hydraulic infrastructure. The scope of the project was to develop, calibrate, and test hydrologic and hydraulic models for the catchment in order to inform and devise appropriate mitigation strategies.


  • Hydrologic modelling for the 1, 2, 5, 10, 20, 50 and 100 year average
  • Incorporation of site survey and proposed levels into the developed scenario
  • Two dimensional, unsteady hydraulic model, incorporating sub-grid scale piped drainage networks using one-dimensional modelling to estimate flood levels within the area