Case Study

Laverton Flood Study

In February 2011, Laverton received 150 mm of rain in 24 hours resulting in Skull Creek breaking its banks and causing significant flooding.

The Situation

In February 2011, Laverton received 150 mm of rain in 24 hours resulting in Skull Creek breaking its banks and causing significant flooding. Several properties and local roads were affected by floodwaters and road access to/from the town was lost for a number of days (video footage here).

Approach

Advisian completed a flood study of the area to determine and map flood characteristics and flood hazards, assess potential flood risk mitigation strategies and develop a Floodplain Development Strategy (FDS) for Laverton.

Laverton Flood Study image 1

Vehicles crossing the Laverton-Leonora Road floodway

A site investigation was completed to observe local hydrological conditions and undertake ground and aerial survey, followed by hydrological and hydraulic flood modelling.

map of flooding region

Results of the 1% AEP flood modelling

Results

The results of the modelling and discussions with the Shire were used to prepare a FDS to inform the community how to better manage flood risk in the future. The flood mapping results and the FDS were presented to the Shire and a range of community stakeholders.

For more information, email Matthew Rafty (matthew.rafty@advisian.com) or phone on (08) 6311 6473.

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