Queensland saves over $94mn in mapping project to mitigate floods

Queensland saves over $94mn in mapping project to mitigate floods

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Queensland: The Queensland State Government saved over A$99 million (US$94 million) in the largest Australian mapping project to mitigate flood by using an innovative geographic information system (GIS). The project’s success has caught the attention of the United Nations.

Queensland is mapping 630,200 kilometers of watercourse following the state’s devastating floods and cyclones in the past few years. “The aim was to produce maps that alerted councils to areas that are susceptible to flooding, ensuring appropriate preparation and mitigation strategies are in place,” said Andy Stewart, from the Land and Spatial Information unit at Department of Natural Resources & Mines (DNRM).

Instead of using the traditional approach of floodplain mapping, which would have cost A$10,000 (US$9,500) per stream kilometre for a detailed flood study, it used “cutting-edge GIS technology to generate fit for purpose flood maps based on a range of existing datasets,” said Stewart.

“Instead of the project costing $100 million and taking a decade, we created 8,875 maps at one dollar per stream kilometre in seven months – keeping the entire cost under AU$1 million (US$950,000),” he said.

Looking beyond Queensland borders, DNRM’s work is likely to create ripples worldwide, with the United Nations’ World Meteorological Organisation showing a keen interest in the project’s methodology.

Source: Future Gov