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Publications and NoticesPrinces Highway Upgrades
Upgrade works at the Penola Road roundabout on Jubilee Highway West are in the final stage. Penola roundabout works will include new kerbing and asphalt works to improve road quality and safety.
During kerbing works there will be changes to traffic conditions to keep everone safe. Works will be undertaken from Monday 22 April to late May 2024. View latest works notice for more information.
The Department for Infrastructure and Transport (the Department) is delivering infrastructure upgrades on the Princes Highway Corridor, from Meningie to the South Australian/Victorian border. The project forms part of the $190 million Princes Highway Corridor Upgrade program which is jointly funded by the Australian and South Australian governments (80:20).
These works will support South Australia's regional economic growth, improve access for high productivity freight movements, provide upgrades to regional road networks for improved accessibility and community connectivity, enhance opportunities for regional tourism in South Australia and improve long term safety and efficiency for all road users.
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Current Works on Princes Highway
| Location | Scope | Start Date* | Expected Completion Date (weather permitting) |
|---|---|---|---|
Approximately 12kms south of Meningie | New overtaking lanes, northbound and southbound | October 2022 | Early 2024 |
Approximately 13kms south east of Millicent | Extension of existing overtaking lanes, westbound and eastbound | October 2022 | Early 2024 |
Approximately 16kms south east of Millicent, opposite Tantanoola Roadhouse | Upgrade of existing rest area | August 2023 | Mid 2024 |
Princes Highway / The Springs Road/ Burrungule Road Intersection | Intersection Upgrade | August 2023 | Mid 2024 |
Approximately 15kms north west of Mount Gambier | Extension of existing overtaking lanes, eastbound and westbound | August 2023 | Mid 2024 |
Approximately 9kms north west of Mount Gambier | Extension of existing overtaking lane eastbound | August 2023 | Mid 2024 |
Four roundabouts within the township of Mount Gambier on Jubilee Highway West (Princes Highway) at
| Roundabout upgrades | August 2023 | Mid 2024 |
| Jubilee Highway West between Suttontown Road and Wehl Street North and between Wehl Street North to Penola Road | Pavement rehabilitation | August 2023 | Mid 2024 |
| Approximately 12kms south east of Mount Gambier | New eastbound and westbound overtaking lanes | September 2023 | Late 2024 |
Completed Works on Princes Highway
| Location | Scope | Completion date |
|---|---|---|
Princes Highway / Furner Road Junction | Junction Upgrade | November 2023 |
| Along the Princes Highway between Kingston SE and the South Australian/Victorian border | Audio Tactile Line Marking | December 2023 |
| Princes Highway / Walkers Tin Hut Road Junction | Junction Upgrade | February 2024 |
| Approximately 7kms north of Millicent | New northbound and southbound overtaking lanes | March 2024 |
Culvert Upgrades on Princes Highway
As part of the South Australian Regional Bridge Upgrades, two culverts on the Princes Highway have been upgraded. These include:
- Reedy Creek - culvert over Drain L located on Princes Highway, approximately 40 kilometers south-east of Kingston. Works will replace and widen the existing culvert and upgrade the safety barriers.
- Thornlea - culvert over the stormwater crossing located on Princes Highway, approximately 23 kilometers north-west of Millicent. Works will replace and widen the existing culvert and upgrade the safety barriers.
For more information on these works, please visit the South Australian Regional Bridge Upgrades project page
Further information
If you have any questions or would like to speak to a member of the project team, please call 1300 794 880, email DIT.Engagement@sa.gov.au or subscribe to receive project updates.