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Horrocks Highway Upgrades

The Horrocks Highway Corridor Upgrade is delivering infrastructure upgrades along the 245km road section between Wilmington and Gawler, to improve safety, connectivity and freight efficiency, whilst importantly creating jobs.

Works include shoulder sealing, pavement rehabilitation, lane widening, sealing of local road approaches, new overtaking lanes and overtaking lane extensions, bridge upgrades, safety barrier, Audio Tactile Line Marking (ATLM) on edge-lines and centreline and improvements to the Gladstone rail corridor and level crossing.

Improvements to the Horrocks Highway are jointly funded by the Australian and South Australian governments (80:20).

The funding programs include:

  • Horrocks Highway Corridor program, which forms part of the South Australian Rural Roads (SARR) Package;
  • Road Safety Package (Stimulus 2);
  • Bridges Renewal Program; and
  • Regional Road Infrastructure Safety Package

Bridges Upgrade

Further details regarding upgrades to bridges along the Horrocks Highway can be found here.

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  • South Australian Regional Bridge Upgrades

    Find more information on bridge upgrades along Horrocks Highway

Ongoing Works

LocationScopeStart Date*Expected Completion Date (weather permitting )
Templers New northbound overtaking lane extensionPlanning Underway
 Planning Underway
Tarlee New northbound overtaking lane extension Planning Underway Planning Underway
Sevenhill (between Auburn and Clare) New southbound overtaking lane Planning Underway Planning Underway
Completed Works

LocationScopeCompletion Date
Between Clare and Templers
Installation of Audio Tactile Line Marking.
March 2024
Between Melrose and Wirrabara, between Goyder Highway and Yacka and between RM Williams Way and Clare.
Installation of Audio Tactile Line Marking.
March 2024
Horrocks Highway and Stockport Road junction, Tarlee
Junction upgrade
March 2024
Geddes Bridge (South of Wirrabara)
Bridge upgrade - strengthening to improve safety and reliability for freight vehicles.
November 2023
Little Spring Creek, Spring Creek, south of Wilmington, Hutt River north of Clare
Bridge upgrades – to remove constraints preventing the use of freight vehicles.
August 2023
Undalya to Giles Corner Approximately 18km of shoulder sealing June 2023
Stockport (Between Tarlee and Templers) Construction of new northbound and southbound overtaking lanes May 2023
Auburn (between Auburn and Clare) Construction of a new northbound overtaking lane May 2023
Rhynie (between Tarlee and Rhynie) Construction of southbound overtaking lane extension May 2023
Rhynie (between Tarlee and Rhynie) Construction of a new northbound overtaking lane May 2023
Tarlee to Linwood Approximately 6.6km of pavement rehabilitation and shoulder sealing May 2023
Morn Hill Approximately 1km of pavement rehabilitation and shoulder sealing May 2023
Between Wilmington and Templers Shoulder sealing, pavement rehabilitation, safety barrier upgrades, directional signage replacements, centreline treatments May 2023
Gladstone Level Crossing Upgrades to the Gladstone rail corridor and level crossing to address extended periods of flashing rail signals whilst rail movements occur near the Horrocks Highway level crossing. February 2023
Stone Cutter Road junction to Bungaree Road junction (near Rochester)Approximately 9km of pavement rehabilitation and shoulder sealing.July 2022
Tarlee Township.
Owen   Road and Templers Road intersection, Templers		Improved Road Lighting.March 2022
Between Gladstone and Goyder Highway, and between Murray Town and WirrabaraInstallation of safety barrier at various locations.June 2021
RM Williams Way junction to ClareApproximately 8km of shoulder sealing and pavement rehabilitation.February 2022
Melrose to Murray TownApproximately 8km of pavement rehabilitationJune 2021
Clare to Undalya (south of Auburn)Approximately 27km of shoulder sealing and pavement rehabilitation.December 2021
Between Wilmington and YackaApproximately 59km of shoulder sealing and pavement rehabilitation.May 2022
Between Templers and RoseworthySealing of local road approaches.April 2021
Between Wirrabara and YackaApproximately 28km of shoulder sealing.May 2022

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Further Information

For more information or to register your for Project Updates, please: