Flooding and drainage
Floods are a natural part of Melbourne’s weather. We can’t stop them from happening, but we can all play a role in minimising their impacts.
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Retarding basins
Retarding basins play an important role in reducing flood risk, temporarily storing stormwater during very high rainfall.
Drainage system
Melbourne’s drainage system directs stormwater away from urban areas to reduce the risk of flooding, but extreme rainfall can still sometimes cause floods.
Greater Melbourne Flood Information Program
We’re working with local councils to update flood information across Greater Melbourne, to better understand the risk of current and future flooding.
Flood modelling
Flood models identify which areas are most likely to flood, how quickly, and how deep the water may get.
Managing flood risk together
Flood management in Melbourne is a shared responsibility between Melbourne Water, councils, emergency services and other key partners.
Flooding and its impacts
Floods are a natural part of our weather cycle. Know the types of flooding that could occur and how they might impact you.
Maribyrnong River flood
In response to the 2022 Maribyrnong River flood, we established an independent review and updated the flood model for the area.
Prepare for flooding
By understanding your flood risk and taking a few simple actions, you can be prepared for flooding.
Enthusiasm for nature and good science
To mark National Science Week, we recognise Waterways and Wetland Research Manager, Rhys Coleman, who is working with smart technologies to meet the challenges of a drying climate and the demands of a growing population.