Floodplain Mapping Key to Successful Flood Risk Management

Floodplain mapping identifies flood prone areas and provides the basis for developing solutions to flood risks. Having the expertise to interpret results and develop solutions based on those results is key to successful floodplain mapping outcomes.

At Southfront, we are specialists in the application of computer based modelling techniques for floodplain modelling of creeks, rivers, stormwater networks and overland flow paths. Our team has prepared flood inundation and flood hazard maps for numerous assignments across the metropolitan area, regional townships and remote arid locations.

Floodplain modelling has been undertaken in various drainage investigations to assist in the identification of flood prone areas and enable the development of upgrade solutions to achieve a satisfactory improvement in flood protection. Recent flood mapping highlights include:

  • A proposed iron ore mine expansion within a creek floodplain, and assessment of scenarios by which diversions and levees could provide an acceptable level of protection during the construction, operation and closure phases of the mine.
  • A township with flood inundation vulnerability, and use of the model to guide the development of a strategy that incorporated structural flood mitigation works and rezoning of land to reduce future flood risk.
  • A main urban centre with all buildings and homes defined as obstructions, to properly assess the impedance that these structures have on overland flood flows

We believe that the key to achieving successful floodplain mapping outcomes is not only having an in-depth understanding of floodplain modelling processes and state-of-the-art modelling resources, but to combine this with an ability to interpret results and implement practical and site-appropriate solutions.

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