Preparing for a flood event
  • Last updated:
  • 08 Sep 2021

Prior to a flood event, flood mapping and information is used to help inform emergency preparedness planning. The mapping helps promote community awareness and supports education programs e.g. Get Ready campaign. This aims to increase individual and household preparedness, as well as businesses continuity planning. It also provides situational awareness for disaster response personnel.

Community awareness and education

Updated flood mapping helps the community to understand how flooding and overland flow may affect aspects of their everyday life, at home, at work, at school or on the road. Understanding and acting on this information helps build a strong and resilient community.

Historically, most Queensland towns and communities were established on or near a floodplain. As a result flooding is likely. With this in mind, understanding flood risks to your property and your local area, will help build community resilience to possible flood events.

Disaster Hub

Disaster Hub is an information portal developed by council. It services the community during disaster events. It also helps build community emergency preparedness for events like flooding, all year round. 

Council’s emergency preparedness flood mapping can be accessed via Disaster Hub

Responding to the Queensland Floods Commission of Inquiry (the Inquiry) recommendations

The updated flood mapping and information responds to the Inquiry’s recommendation that local governments provide risk-based mapping to residents and professionals. This mapping will enable these groups to more clearly know, prepare for and manage flood risk.

Emergency preparedness flood mapping products

Riverine flood maps (minor, moderate, major and extreme flood events)

Riverine flood maps show residents the effect of widespread and prolonged rainfall over a large catchment area. Riverine flood events may cause elevated water levels in our rivers and creeks for several days. Flash flooding can also occur following intense localised rainfall and with little warning.

These maps provide an estimate of how and where water will rise during a flood event. This information is important for emergency preparedness as it assists with disaster management and planning, for both council and our community.

The mapping is divided into four categories to represent likelihood and flood risk. 

Flood Likelihood Minor Moderate Major Extreme
Annually 40% 10% 1% 0.05%
Over 70 years 100% 99.9% 50% 3%

The following diagram shows how the riverine flooding categories compare to flood events that have occurred in our region in the past.

diagram illustrating flooding classifications

Storm tide maps (storm surge maps)

This mapping presents surge heights above the Highest Astronomical Tide. It shows the effects of additional surges from the ocean during meteorological (storm) conditions.

This information is important for emergency preparedness. It assists with disaster management and planning, for both council and the community.

What you can do

As storm season approaches, it’s a good time to go online and check your property using our Emergency Preparedness mapping.

Residents are encouraged to look at the locations where

  • they live
  • they work
  • friends and family members may go to school.

Look at how flooding affects the routes often travelled. It’s important to have a backup plan or know the alternative routes you can take.

Think about how your property might be affected by different flood events. Consider any changes you might need to make to prepare for flooding now or in the future. Increase your own resilience.