For emergency assistance during a flood, storm or tsunami, call NSW SES on 132 500   In a life-threatening emergency, call Triple Zero (000).
NSW SES
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Local information

The Hills Shire

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Local Government Area
The Hills Shire
River catchments
Hawkesbury River
Sydney Coast-Georges River
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The Hills Shire

Flood, storm and tsunami (natural hazards) can happen at any time in NSW. It is important to be aware of the risks in your area to help you to plan, prepare, respond and recover effectively. Understanding past and potential future hazards in your area helps you to make informed decisions that can reduce the impact on individuals, families, businesses and communities.

The local information page provides valuable resources for your Local Government Area (LGA). You can explore flood information for your local river catchment through Local Flood Insights, access local flood plans and guides, and connect with local councils and NSW SES units.

Hawkesbury-Nepean Catchment

This local government area is part of the Hawkesbury-Nepean Catchment area.

The Hawkesbury-Nepean Valley covers a wide area in Western Sydney from Bents Basin near Wallacia to the Brooklyn Bridge. The area has a long history of dangerous and deep flooding.

The unique geography in the valley affects the extent and depth of flooding in the region. Most river valleys tend to widen as they approach the sea. The opposite is the case in the Hawkesbury-Nepean Valley, which means floodwaters flow into the valley more quickly than they can flow out, causing them to back up and rise rapidly.

If you live or work in an area with risk of flood, your home, family and animals may be vulnerable. It's important to always be prepared for floods in the Hawkesbury-Nepean Valley as floods can happen anytime. Use the interactive flood mapping tool which allows you to check your flood risk and provide information at a suburb level. For more detailed information on risk related to your property or street, please contact your local council.

Check your flood risk in the Hawkesbury-Nepean Valley area

More information and planning resources can be found by visiting our Hawkesbury-Nepean Valley information page.

Hawkesbury-Nepean Valley area

Local Flood Insights

The Local Flood Insights tool offers an overview of flood-prone areas, historic flood events, and modelled flood risks through detailed maps, data and community stories. This website-based platform combines flood inundation mapping, photos and personal accounts from local residents about the impacts of past floods and ways to prepare for future floods.

This information is useful to community members, travellers, or anyone wanting to learn more about local flooding. Explore NSW SES Local Flood Insights to make informed decisions about flood safety and preparedness.

Select a river catchment below to view the Local Flood Insight for each corresponding catchment area. To see all catchment areas, visit the Local Flood Insights page.

Flooded landscape in the Hawkesbury-Nepean area of NSW, with fields and trees partially submerged under murky floodwater.

Disaster resilience in the Hawkesbury-Nepean Valley area

The Hawkesbury-Nepean Valley Region is a flood prone area. Here's how to prepare ahead of time to reduce your risk.

Local SES units

The Hills Unit

92 Seven Hills Road , Baulkham Hills, NSW 2153

Latest News

Media release
News
The NSW State Emergency Service (SES) is advising residents to monitor conditions in the Hawkesbury Nepean Valley, as forecast rain may lead to river level rises.
Media release
News
The NSW State Emergency Service (SES) has responded to widespread flooding on the Hawkesbury River, as rainfall eased across the state. 
Media release
News
As the June long weekend approaches, the NSW State Emergency Service (SES) is asking people to make safe and sensible decisions amid severe weather conditions that have hit parts of southeastern NSW and metropolitan Sydney.