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Tasmanian Flood Mapping Project

The Australian and Tasmanian governments have committed to jointly fund the $3 million Tasmanian Flood Project under the Natural Disaster Relief and Recovery Arrangements over the next three years. The Tasmanian Flood Mapping Project will:

  • Ensure that most if not all communities will have access to a high resolution digital terrain model for the purpose of flood modelling through the collection of light detection and ranging (LiDAR) over communities which do not currently have it;
  • Develop a the Tasmanian Flood Map to support a flood risk assessment, and the development of land use planning and building controls; and
  • Partner with Local Government to undertake detailed flood studies and evacuation planning for the communities most a risk of flooding that do not have a current flood study.

The Tasmanian Flood Project has a budget of $3 million that is roughly evenly spread across the tasks above, commencing in the third quarter 2018 and will take approximately three years to complete. The first year dedicated to LiDAR data capture, the second year the Tasmanian Flood Map, and the third year to detailed flood studies.


Following the 2016 floods, feedback from the impacted communities and Municipal Councils identified an ongoing need to better understand flooding in Tasmania. This is a critical issue to ensure effective investment in recovery and increase community resilience to future flood events.


The objectives of the Tasmanian Flood Mapping Project are to:

  1. Assist flood affected communities recover from the 2016 floods through a better understanding of flood; and
  2. Increase the resilience of Tasmanian communities to future flood events.


The Target Outcomes of the Tasmanian Flood Mapping Project are that:

  1. The social and economic recovery of flood affected communities is informed by the most up-to-date information on flood risk that is available;
  2. Ownership of flood risks is appropriately allocated to relevant stakeholders;
  3. Risks from flooding are factored into investment decisions by individuals, businesses and governments; and
  4. The allocation and responsibility for flood mitigation costs is appropriately allocated to relevant stakeholders.

The Target Outcomes will be realised by delivering three outputs that meet the needs of local and state level end users with flood policy, planning, prevention and mitigation, preparedness, response, and recovery roles.


The Tasmanian Flood Mapping Project will deliver three outputs:

  1. Statewide hydrologically correct digital terrain model;
  2. Statewide flood hazard map; and
  3. Detailed local flood studies grants program with Municipal Councils.

The outputs once developed, will be licenced under the Creative Commons BY 4.0 Licence and available for use and download free of charge from the Tasmanian Government LIST Open Data website.

Statewide high resolution digital terrain model

The digital terrain model will provide Tasmanians with a high quality and consistent statewide data set for use in flood studies and flood plain studies, especially studies conducted using 2D modelling approaches.

To support the development of this the Tasmanian government will ensure that all Tasmanian communities have access to high resolution elevation data through the collection of LiDAR the program is under development.

Statewide Tasmanian Flood Map

The statewide flood map will provide members of the public, emergency services, municipal councils, regulators and other stakeholders information that can be used to inform decisions about:

  • social and economic recovery from the 2016 floods;
  • business and household flood recovery, mitigation investment, and preparedness;
  • emergency management planning;
  • community mitigation investment; and
  • land-use planning, and building control.

The Statewide flood hazard map will be developed using 2D direct rainfall on grid approache. It will deliver statewide flood extent, flood function and flood hazard layers for a range of defined flood events in accordance with national best practice guidelines.

Detailed local flood studies grants program for Municipal Councils

A grants program (on a 1/3,1/3. 1/3 funding basis) for the years 2020 -2021 will be available to assist Municipal Councils fund the delivery of more detailed local flood studies in areas of identified need. The studies will deliver a standard suite of products consistent with national best practice guidelines.

Further Information

Further information on the Tasmanian Flood Mapping Project can be obtained by contacting the Office of Security and Emergency Management on 6270 5486, or the State Emergency Service on 6173 2700 or