Arnhem Highway - Adelaide River Floodplain Upgrade

Project Description

The Arnhem Highway is the major land transport route between the Stuart Highway and Kakadu National Park. In addition, the Arnhem Highway services the towns and communities of Humpty Doo, Marrakai, Corroboree, Jabiru and Arnhem Land.

This project involves the relignment of approximately 6.5km of the Arnhem Highway across the Adelaide River Floodplains. The new alignment will be parallel to the existing road and will raise the height of the road by 1.3 metres above the current level. 

Benefits

This project will improve road reliability for road users between the Stuart Highway and Mount Bundy.

The project will provide the following benefits:

• improved flood immunity at the Adelaide River floodplain
• increased route reliability and accessibility on the Stuart Highway
• reduced duration and frequency of road closures, through improved pavement strength and flood immunity.

Funding

The Australian Government has committed up to $62.30 million towards this $77.88 million project.

Timetable

Project development activities commenced in July 2018, with early construction works expected to commence in early-mid 2019 (noting that as the project is still in the development phase, the construction timeline is indicative only and subject to change).