Alice Springs flood mitigation

In June 2017, the Alice Springs Regional Flood Mitigation Advisory Committee released a report that provides recommendations and measures for managing and reducing the flood risk in the Alice Springs region. Read the Final Alice Springs Flood Mitigation Report (2017) PDF (7.5 MB).

The Department has been investigating structural flood mitigation measures as outlined in the Alice Springs Regional Flood Mitigation Advisory Committee report.

The Department engaged WRM Water and Environment consultants to undertake updated flood modelling for Alice Springs to investigate and assess potential flood mitigation options to reduce the peak flow of a flood.

The flood modelling uses detailed topographical data, including from the upper catchment of the Todd River and floor level surveys of flood prone properties to assess which structural mitigation measures will provide the greatest value to reduce the impacts of flooding.

The results of the flood modelling show that mitigating flooding in Alice Springs has no simple solution and is characterised by unique features that create limitations on what can be done to mitigate flooding.

A number of combined constraints make it difficult to come up with one solution to reduce flooding impacts in Alice Springs.

An engineering feasibility assessment is underway to inform the concept design of key trunk drainage upgrades to mitigate flooding impacts and is expected to be completed by late April 2025, with the first works package to commence construction by the end of 2025.

To talk to one of our project team members:

• email flood.mitigation@nt.gov.au

Resources

Fact sheet - Alice Springs Flood Mitigation Project PDF (5.2 MB)

Poster - Alice Springs Flood Mitigation Project Timeline PDF (2.0 MB)