Published on Monday, 9 January 2023 at 12:35:00 PM

The City of Vincent will be developing a stormwater drainage system strategy to mitigate the risk of flooding in its neighbourhoods.

The overall objective is to reduce the number of flooding hotspot areas within the stormwater drainage system over the next three financial years.

Vincent will be working on priority projects, starting with Mt Hawthorn, and reviewing the level of service for cleaning and maintenance of the existing stormwater drainage system in 2023/24.

Upgrades will start in Lynton Street, East Street and Sasse Avenue in Mt Hawthorn which have been identified as priority projects.

“Our climate is rapidly changing so it is important that we are ready to adapt,” said Mayor Emma Cole.

“We need to ensure our essential infrastructure, like drainage, is reviewed and upgraded in response to changing weather and storm frequency.

“Historically, we have identified about 200 hotspot areas, where some either had flooded or are at risk.

“We will be upgrading the infrastructure in these hotspot areas to reduce the risk of flooding.

“We are planning for the future and will be undertaking hydraulic modelling to assess the future capacity needs of our stormwater drainage network to prepare for and cope with increasing rain events and climate change.”

A business case will be prepared to assess whether a more effective approach to drain cleaning and maintenance works can be achieved in-house with appropriate equipment and labour resources.

An example of a local flooding event was on 4 July 2021, where Perth recorded its second wettest day of that year. More than 44mm of rain fell from 9am making it the second wettest July day in 20 years.

On this day, Vincent experienced localised flooding around Lynton Street near the freeway, East Street, Menzies Park and William Street.

A capital works program for drainage works will be developed, based on risk assessment priorities over the next five to 10 years. 

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