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Regional Road Projects

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    Jubilee Highway East, Mount Gambier

    Road resurfacing works will commence from Monday, 25 May 2020, on a 3.8 kilometre section of Jubilee Highway (Princes Highway) in Mount Gambier.

    The Jubilee Highway East is a main arterial road through South Australia’s largest regional centre. The resurfacing works aim to improve ride quality for road users and preserve the road surface for years to come.

    The works will be undertaken:

    • on the northern side of Jubilee Highway East from Penola Road to Dohle Road, and on the southern side from Pick Avenue to Dohle Road (excluding Pick Avenue intersection).
    • daily from 6:30am to 6pm, Monday to Saturday with occasional Sunday works.

    Completion is expected in July 2020, weather permitting.

    Speed and lane restrictions will be in place, with traffic management and signage in place to assist road users and advise of changes conditions. Some detours may also be required.

    Please take extra car when workers are on site. Observe speed limits, lane restrictions and traffic controllers when travelling through the area.

    Access to properties will be maintained throughout the works, with advance notice provided if there is a need to restrict driveway access. Pedestrian access with not be affected by the works.

    The project will be delivered in two stages with detours and lane restrictions implemented as required. Different road surface levels will be experienced during the works, so road users are asked to take care at all times when driving through the site. The works will be managed to minimise disturbance to local residents and businesses as much as practically possible.

    The $5.1 million of priority pavement reseal and rehabilitation works form part of the $250 million Princes Highway Corridor Strategy, which is jointly funded by the Australian and South Australian Governments.

    If you have any questions or require further information, please contact the project team by phone on 1300 794 880 or email


    Princes Highway

    In the 2019-20 State Budget, the South Australian Government announced $250 million, including a $200 million commitment from the Australian Government, towards an upgrade of the Princes Highway.

    This upgrade will include road widening, safety upgrades, new overtaking lanes, duplication along key sections and intersection upgrades.

    Horrocks Highway

    In addition, the 2019-20 State Budget announced a $55 million commitment towards multiple projects including a bridge upgrade, Gladstone rail corridor improvements, pavement improvement, shoulder sealing and additional overtaking lanes for the Horrocks Highway corridor.  This includes a $44 million commitment from the Australian Government.

    Roads of Strategic Importance

    The Roads of Strategic Importance is an initiative by the Australian Government to connect regional businesses to local and international markets, and better connect regional communities.  More information on the Roads of Strategic Importance is available here.

    In South Australia, a commitment of $275 million has been announced by the Australian and South Australian Governments.  The South Australian Government's commitment of $55 million was confirmed in the 2019-20 State Budget for funding towards a number of projects on the following corridors:

    • $87.5 million to upgrade the Sturt Highway from Renmark to Gawler
    • $62.5 million to upgrade the Barrier Highway from Cockburn to Burra
    • $125 million to upgrade South Australia’s section of the Eyre Highway from Port Augusta to the Western Australia border, including $32 million to upgrade Eyre Peninsula roads following the closure of the rail line.

    Sturt Highway: works for this program could include:

    • shoulder sealing
    • road safety improvements (including at Berri bypass junctions, addressing roadside hazards and investigating the potential for wide centre median treatments)
    • overtaking lanes
    • Truro town bypass
    • potential road realignments through Accommodation Hill (east of Truro)
    • road rehabilitation and resurfacing.

    Barrier Highway: works for this program could include:

    • shoulder sealing
    • bridge widening and barrier upgrades
    • road safety improvements
    • rest areas for improved fatigue management
    • pavement rehabilitation and resurfacing.

    Eyre Highway and Eyre Peninsula: works for this program could include:

    • overtaking lanes
    • road widening and shoulder sealing
    • road safety improvements
    • rail level crossing safety improvements
    • rest areas for improved fatigue management
    • pavement rehabilitation.

    A tender for the planning and design for overtaking lanes on the Eyre and Lincoln Highways has been released, with this work to deliver:

    • two overtaking lanes between Port Augusta and the intersection of the Eyre Highway and Lincoln Highway, funded by the Roads of Strategic Importance initiative
    • two overtaking lanes between Whyalla and Port Augusta on the Lincoln Highway.  This work is being funded by the Safety Improvement Program package of works, a part of the Australian Government’s Rural Roads Package.

    Construction is anticipated to begin in 2021-22.

    If you have any questions about the Roads of Strategic Importance works program within South Australia, please: