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Freeway Interchange Bald Hills Road

This is a State Government project and the site project management is being undertaken by the Department of Planning, Transport and Infrastructure. Information on this page has been provided by DPTI.  Further information is available via the DPTI website:

Construction Contact

Any queries regarding the construction should be directed to DPTI on 8343 2102 or the contractor, Bardavcol, on 0499 400 160.

November 2016

Bald Hills Interchange Final Asphalt Works

The Department of Planning, Transport and Infrastructure advises that works to install the final asphalt layer on the four interchange ramps at the Bald Hills Interchange are scheduled to commence, weather permitting between Wednesday 16 November and Monday 21 November 2016 at the following times:

  •  Murray Bridge off ramp will be closed to all traffic from 7.00am Wednesday 16 November to 7.00am Saturday 19 November.
  •  Murray Bridge on ramp will be closed to all traffic from 10.00am Wednesday 16 November to 7.00am Saturday 19 November. 
  •  Adelaide on ramp will be closed to all traffic from 10.00am Friday 18 November to 5.00am Monday 21 November. 
  •  Adelaide off ramp will be closed to all traffic from 7.00am Saturday 19 November to 7.00am Monday 21 November. 

Advance notice signage will be in place to advise motorists of the changed traffic conditions, and road users are requested to take extra care when workers are in the area and observe traffic signage and speed restrictions.

For safety reasons and to ensure the integrity of the surface the posted speed limit is expected to be reinstated to 110km/hr in December 2016, weather permitting.

Motorists are encouraged to find alternate routes and avoid the area if possible.

For real time roadwork information download the AddInsight app at or visit the Traffic SA website at


October 2016

Asphalt Repairs

Some asphalt repair works on the South Eastern Freeway opposite two of the new ramps will be undertaken from 10 to 14 October as night works.  The Variable Message Boards will detail which ramps are accessible each night.


September 2016

Final Asphalt Wearing Course  

The interchange is under the care and responsibility of the Department of Planning, Transport and Infrastructure. 

DPTI have advised Council that the final wearing course of asphalt for the ramps is to be applied in November/December as soon as suitable weather conditions are forecast. 

The ramps are currently under speed reduction to 80km/h.  Once the asphalt has been laid, the ramps will be much smoother and the normal freeway speed limit will be applied. 


15 August - New Interchange Open

A faster, safer commute for Mount Barker motorists

A new traffic interchange is now officially open on the South Eastern Freeway – improving access, safety, and travel times for tens of thousands of people.

The interchange provides more efficient access on and off the freeway via Bald Hills Road reducing traffic congestion through Littlehampton and Mount Barker and will improve travel times and road safety for commuters travelling to the east side of Mount Barker and reduce congestion in Mount Barker.

As well as giving commuters a better run to their destinations, the new interchange will also enable tourists to move around the Adelaide Hills easier, and improving freight transport.

The project also included construction of a new roundabout at the intersection of the Old Princes Highway and Bald Hills Road to cater for the increased traffic expected from the new intersection.

Commencing in June 2015, the $27m project is jointly funded with the Australian Government contributing $16 million, the South Australian Government $8 million and the District Council of Mt Barker $3 million.


Little Dublin Road West Closure

The State Government's contractor Bardavcol have advised it will be necessary to close the Little Dublin Road West entrance to traffic for a period of approximately 2 weeks commencing 6 July 2016.

Little Dublin West Road Closure Notice(735 kb)

Little Dublin Road West Road Closure Detour(3890 kb)


Detour to Access Yaktanga Way Friday 20 May

To facilitate the sealing of Bald Hills Road south of the South Eastern Freeway, the contractor intends to place asphalt past the Yaktanga Way/Bald Hills Road intersection on Friday 20 May 2016 between the hours of 7.00am to 3:00pm.

A detour to direct all Yaktanga Way traffic via Burnbank Way to Bald Hills Road will be sign posted. 

The contractor will undertake a letterbox drop to local residents with the message being reiterated using variable message boards.


All Ramps to be open by September 2016

May 2016

The New Freeway Interchange construction is progressing well. The State Government has advised that it expects all ramps to be open by September 2016 under a speed restriction with completion of all work by the end of 2016.


Bald Hills Road Closed 17 April 2016 for Interchange Work

17 April 2016

Road works are progressing well along Bald Hills Road. Bardavcol anticipates the majority of the work will be completed by Mid 2016. However, to ensure Bardavcol meets this date and to minimise the overall period of disruption, it will be necessary to close the Bald Hills Road Underpass.

This work will take place on Sunday 17 April 2016 between the hours of 6:00am and 6:00pm. During this time, Bald Hills Road will be closed between Springs Road and Old Princes Highway with the exception of local traffic only. Please note that Bald Hills Road will be completely closed at the Bald Hills Road Underpass. Local traffic needing access north of the South Eastern Freeway, will need to be from Old Princes Highway and local traffic needing access to the South of the South Eastern Freeway, must be from Springs Road. Traffic management and signage will be in place to advise of the detour and to assist traffic.

The road will be reopened as per current conditions at the end of this shift. Regular daytime construction works will continue as normal on Monday 18 April.

We apologise for any inconvenience caused during this work but assure you every effort will be made to minimise impact during this period.

If you have any queries related to this work please call Project Manager – Daniel Kranixfeld on 0419 851 965.


Night Works Old Princes Highway and Bald Hills Road

6 January 2016

DPTI's contractor, Bardavcol, will be undertaking night works at the junction of Old Princes Hwy and Bald Hills Rd.

Works will commence Sunday Night 10 January and be complete by Saturday Morning 16 January and be undertaken between 7pm and 7am.

Please observe posted detours.

Old Princes Highway Bald Hills Road Detour Map 1(1564 kb)

Old Princes Highway Bald Hills Road Detour Map 2(4686 kb)

Old Princes Highway Bald Hills Road Detour Map 3(1861 kb)


Progress Update

September 2015

  • Design is progressing now 95% complete
  • Lighting design is underway
  • 4 of the 6 Drainage Culverts are complete
  • Re-alignment of creek routes is underway
  • Earthworks for new Roundabout 1. (south side of SEF) commenced with existing drain backfilled and flows re-directed
  • Re-start cut to fill earthworks on New Little Dublin Road East (weather permitting)
  • Relocation of existing water main in the northern carriageway of Bald Hills Road through the tunnel nearly complete
  • Adelaide On Ramp – boxing out and backfilling has begun
  • Top Soil strip to MB On Ramp / Bald hills Rd Off
  • Tree and bush works are complete at OPHwy

Due to the recent wet weather time frames have been affected but still targeting Early 2016 for the opening of the OPHwy roundabout and the Adelaide On ramp.


Underpass Lane Restrictions 

The Bald Hills Road Underpass will be down to one lane for at least the next two months starting Tuesday 1 September 2015.

Traffic Controllers will be on site to assist emergency services if and when necessary.


Progress Update

August 2015

  • Due to weather, progress has been slow.
  • Installation of box culverts to 4 of the key drainage routes have been installed.
  • All the required tree removals have taken place.
  • Old Princes Hwy works will begin early Sept 15 staring with vegetation removal then the import of backfill materials for the new road levels.
  • Interchange drawings progressing.
  • Topsoil strip for the Adelaide on ramp is to begin in the next couple of weeks weather permitting.
  • The new route for Little Dublin Road East has begun along the northern with works to begin soon.


Work Commencing

June 2015

Section 23 has now been approved by the Minister.  The contractor will be starting works onsite without restrictions from 1 June 2015.


Tender Awarded

May 2015

DPTI has appointed local construction company Bardavcol to construct the interchange.  

Early works will begin on Monday 1 June, 2015.  These works will include preparation for the construction of the Site Compound and Service Relocations.  Major earthworks for the ramp to Adelaide are expected to begin towards the end of June.


Community Briefing

27 March 2015

Using Council’s concepts for the interchange, the Department of Planning, Transport and Infrastructure has developed a plan for the new interchange and has invited property owners adjacent to the new freeway interchange to attend a meeting at the Mount Barker Golf Club on Wednesday 8 April at 6pm to discuss the plan.  Adjacent residents are encouraged to attend.


What’s happening now?

December 2014

The Hon Jamie Briggs MP and Mayor Ferguson today announced the commencement of vegetation removal works for the new freeway interchange.


DPTI is commencing tree removal to allow construction of the New Interchange on 8 December 2014. Tree removal is limited to the Sate Government owned Freeway Reserve (see Plan). Council is still in discussion with DPTI about trees along Bald Hills Road to determine where high values native trees can be retained through design adjustments.

Freeway Interchange Tree Removal Map(1249 kb)


November 2014

DPTI has completed the engineering and environmental surveys and prepared a concept based on the scheme prepared by Council in 2008/09.  Tenders have been called for the project and while no dramatic changes are expected to be made to this design, the final design will be available in early 2015. 

Noise: As with any DPTI infrastructure projects involving new roads or major upgrades, noise modelling was undertaken to predict future noise impacts of the project. 

The consultant AECOM has confirmed that as future noise levels (based on our modelling) will not exceed noise Guidelines and no noise attenuation is required. 

Vegetation Removal: While the ramp design has been developed with the aim of minimising vegetation removal, there are a lot of trees and other vegetation which need to be removed to make way for the interchange.  Vegetation removal will begin on Monday December 8.  Large logs will be gifted to Council for landscape works within the Council district.

The landscape scheme based on local native plant species will integrate the site into the surrounding landscape character while taking into account biodiversity values.

In addition to the landscaping, DPTI will meet obligations under the Native Vegetation Act - Significant Environmental Benefit offset requirements through a substantial payment into the Native Vegetation Fund.

For more information or to provide feedback:
DPTI Community Relations
Telephone: 8343 2102


Roundabout at Old Princes Highway and Bald Hills Road

August 2014

Stage 1 includes construction of a roundabout at Old Princes Highway and Bald Hills Road.

Concept Plans Old Princes Highway and Bald Hills Road August 2014(3590 kb) 


DPTI Commences Community Engagement

July 2014

DPTI will be engaging with directly affected residents in late July 2014. 

This will be followed by broader community engagement where the proposed interchange scheme will be placed on display for public comment from Thursday 24 July 2014 – Friday 8 August 2014 at the Mount Barker Library, 5 Dumas Street, Mount Barker.

DPTI Project staff will be present at the Library to answer any questions on Thursday 24 July 2014 between 6.30pm - 8.00pm.

Bald Hills Road Freeway Interchange Concepts for Consultation(3857 kb) 


Designs & Simulation

July 2014

Further information on the designs is available on DPTI's website:


Investigative Works

May 2014

DPTI have advised that investigative works will be undertaken to build on that already obtained by Council when the concepts for the interchange in this location were developed in 2008/09.  Surveyors will be gathering engineering data to help prepare a design which is expected to be released for public communication and comment in June 2014.