Arnhem Highway - Adelaide River floodplain upgrade

The Australian and Northern Territory Governments are funding a $77.88 million upgrade of 6.5 kilometres of the Arnhem Highway across the Adelaide River floodplain.

The project will reduce road closures during the wet season along the Arnhem Highway due to flooding of the Adelaide River, resulting economic and safety benefits for road users.

The upgraded section of the highway will be built next to the existing road alignment, which will include:

  • raising the height of the road
  • drainage structures (13 bridge structures) along the new alignment.

Previous announcements

For previous announcements, read:


Hotline: 1800 560 308

Last updated: 22 January 2021

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