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2024 Hawkesbury-Nepean River Flood Study (TUFLOW Model)

Created 25/06/2025

Updated 20/10/2025

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The Hawkesbury-Nepean River Flood Study (May 2024) provides high-resolution spatial and temporal data identifying areas in the Hawkesbury-Nepean Valley affected by flooding, including backwater inundation of tributaries, and assesses the potential impacts of climate change on flood behaviour. The study covers the 21,400km² catchment and the 190km river length from Bents Basin near Wallacia to Brooklyn, encompassing Local Government Areas such as Penrith, Hawkesbury, Blacktown, The Hills, Wollondilly, Liverpool, Hornsby, and Central Coast. The TUFLOW model input files provide the most up-to-date and reliable flood information for the Hawkesbury-Nepean River and should be used to inform all flood-related decision making from June 2024. Please contact tim.day@reconstruction.nsw.gov.au to receive a copy of this dataset.

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Additional Info

Field Value
Title 2024 Hawkesbury-Nepean River Flood Study (TUFLOW Model)
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/eb5bca5c-ee80-4bf9-9cce-19fa73cbd8a8
Remote Last Updated 08/10/2025
Contact Point
NSW Reconstruction Authority
?datansw@customerservice.nsw.gov.au
Reference Period 23/06/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        150.60667,
        -33.92944
      ],
      [
        150.60667,
        -33.32861
      ],
      [
        151.30472,
        -33.32861
      ],
      [
        151.30472,
        -33.92944
      ],
      [
        150.60667,
        -33.92944
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "2024 Hawkesbury-Nepean River Flood Study (TUFLOW Model)". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-2024-hawkesbury-nepean-river-flood-study-tuflow