Haslams Creek Flood Study & Hill Road Project

Haslams Creek Flood Study

In late 2024, Council will launch the first stage in the NSW Government’s floodplain risk management process by asking residents of Wentworth Point, Carter Street Precinct, Sydney Olympic Park and Lidcombe to contribute photos, video and information about local flood events. This data collection is the first step to creating a flood model and a Floodplain Risk Management Study and Plan. 

Council will provide further information on the project including how and when you’ll be able to contribute to the flood study.

Following stage 1 information gathering, specialist consultants will use information provided by the community and other data to begin the flood study including building a flood model.

A flood study is a technical investigation of flood behaviour and allows Council to identify the risks from different sized floods, from small floods up to the largest possible flood. 

The study models the likely path of floodwaters and the likely depth and provides Council with an understanding of flood risk so it can manage existing development, plan for future development and help the SES plan how to react to flood emergencies. The Draft Haslams Creek Flood Study is expected to be placed on public exhibition in 2025.

Council will provide more information on how and where to have your say on the Haslams Creek Flood Study and more information on the Hill Road project as work progresses. 
 

Map
 

Hill Road Masterplan

Due to the complex and interconnected nature of issues affecting Wentworth Point, the Haslams Creek Flood Study will feed into a Hill Road Masterplan. Based on extensive investigations, the Masterplan will seek to address a range of issues and propose solutions which consider: 

• Potential drainage improvements to Hill Road
   
• Reducing the instances and depth of water pooling on Hill Road – considering the impact of tidal movement particularly when combined with storm activity
   
• Improving overland flow of flood waters across the peninsular
   
• Soil contamination
   
• Parramatta Light Rail Stage 2 construction proposals and impacts
   
• Water capture and filtration prior to release into the Parramatta River
   
• Water harvesting.

Council has received $50 million from the NSW Government to support investigations into flood reduction. 

The project will begin with extensive studies and traffic studies. It is expected that the flood reduction infrastructure study will progress in tandem with the Draft Haslams Creek Flood Study project allowing the movement of water across the peninsular to be modelled and various flood mitigation measures to be suggested. 

Reflecting the scope of the project, the funding will be provided over three years, allowing for initial studies, development of flood reduction measures and potential construction.

Council has also received $8.5 million in funding from the Australian Government to assist in scoping and implementing improvements for Hill Road including addressing safety concerns at intersections and improving street lightning.