What is a floodplain

The term floodplain refers to low lying land bordering a creek, river, lake, sea coast or artificial channel. In Victoria, floods are usually caused by heavy prolonged rainfall.

This produces surface runoff which flows overland into rivers and streams. When there is a large amount of runoff, water overflows the river banks onto the adjacent floodplain, causing land to flood.

Built up urban land can be affected by floods that occur during severe storms, when drainage systems reach capacity.

For planning purposes, a one per cent probability or one-in-100-year flood is used to identify land which is liable to flooding. This is determined from data obtained from previous floods and from flood studies.

Works on Waterways

For further information works on waterways permits

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Flood Advice

Need flood advice for a property in the Corangamite Region?

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Barwon River Zonings 2018-19

Click here for the current list of 2018-19 zonings for the Barwon River

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Corangamite Waterway Strategy

A new eight-year plan for healthy rivers, estuaries and wetlands.

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Public Notices

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Public Notices

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Flood Information



Click here for flood and weather information in the region.

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