Border to Gowrie (Queensland)

The Border to Gowrie (B2G) section is one of 13 projects that complete Inland Rail. It comprises approximately 145km of new dual gauge track and 71km of upgraded track from the New South Wales/Queensland border, near Yelarbon, to Gowrie Junction, north west of Toowoomba in Queensland.

This section will connect one of Australia’s most productive farming regions by rail to markets, including to Brisbane, Melbourne, Sydney, Adelaide and Perth, more quickly, more reliably, in larger volumes and at a lower cost. This will help producers to be more competitive, opening up more market options for them.



Project status

The project is nearing completion of the reference design development phase. Pending project approval from the Australian and Queensland governments, the reference design will be finalised and the detailed design phase of the project will start.

The B2G preliminary draft Environmental Impact Statement (EIS) was sent to the Office of the Coordinator-General (OCG) for review in late 2019. The Queensland Coordinator-General will evaluate our preliminary draft EIS document against the terms of reference (ToR) as well as predicted economic and social impacts, and seek formal submissions from landowners and the community later this year. We will keep you informed about the submissions process.

Reference design

The proposed alignment is one element of the reference design. You can view the proposed rail alignment on our interactive map.

Other elements of the reference design include proposed public road and rail crossings, and the project footprint. The project footprint is the area that may be required for the construction and operation of the Inland Rail. The project footprint varies in width to accommodate proposed changes to local roads, earthworks, access tracks and construction material storage and production.

Information from the community and field studies played a key role in determining the proposed alignment. Other considers included the technical viability, safety, operational restrictions, constructability, environment, and community and property impacts.

For more information about the proposed alignment, public road rail crossings and community feedback in your suburb, please read our local area fact sheets and our visualisations.

Condamine floodplain crossing

Since the release of the proposed Condamine floodplain crossing in late 2018, Inland Rail has continued consultation with landowners and key stakeholders to update the flood model and design of the crossing solution.

The flood model has been expanded to incorporate additional local flow paths, in particular within the Back Creek catchment, and has also been validated against the 2013 flood event. We have undertaken further sensitivity testing on the model to determine how inflows from local creeks may impact water levels and velocities in a 1-in-100 (1% Annual Exceedance Probability (AEP) flood event in order to gain more robust results based on local knowledge. We have also included additional data from the Warwick and Cecil Weir stream gauges, as well as anecdotal data of historic flood events prior to 1921, to improve our flood frequency analysis. These updates have allowed improved understanding of flooding behaviour in the Condamine floodplain but have not resulted in significant changes to the overall model or required considerable updates to the crossing design.

The Condamine floodplain crossing design has been updated to incorporate community feedback. Key changes included:

  • extending the proposed bridge over the North Branch by approximately 250m north
  • moving the proposed Yandilla rail bridge further south and combining with the proposed Grasstree Creek bridge
  • increasing the number of proposed culverts near Yandilla grain silos to ensure the drainage channel to the south of the silos has enough culverts to convey flood water.

The proposed Condamine floodplain crossing solution remains within the existing rail corridor, and now comprises:

  • 6 bridges
  • 6.1km total bridge length
  • Approximately 500 culverts (900mm – 2.1m in diameter).

Assessment of the proposed Condamine floodplain crossing solution using the updated flood model indicates that in a 1% AEP event, the solution is likely to change flood behaviour at 23 private properties that already experience some degree of flooding. This includes changes in peak water levels of 10-50 mm at six houses. We are continuing to work with landowners to develop mitigation measures to minimise and manage any changes to flood behaviour.

You can view the floodplain crossing design here.

The proposed Condamine floodplain crossing solution is subject to assessment as part of the EIS process and may change as a result of conditions of approval, further investigations, or detailed design.

Consultation with affected landowners is ongoing.

Environmental Impact Statement (EIS) progress and investigations

Following acceptance of the ToR in 2018, ARTC has been undertaking investigations for the B2G EIS.

An EIS is a tool the government uses to assess:

  • the current environment in the area of the project
  • potential environmental, economic and social impacts of the project
  • proposals to avoid, minimise, mitigate and/or offset those potential impacts.

The B2G team has been gathering on-site information within the project study area. Numerous environmental and technical investigations, including geotechnical surveys, baseline noise monitoring, Indigenous and European cultural heritage surveys, hydrology studies, traffic counts, and fauna and flora surveys have been carried out. Results of these investigations have informed the development of the EIS and project reference design.

To view upcoming investigation works, you can view our latest notification.

Community consultation

Since September 2018, we have engaged with key stakeholders, landowners and the community regarding the development of the reference design and EIS. This engagement centred around the following elements:

  • focused area of investigation
  • alignment development in Millmerran, Millwood and Whetstone
  • Condamine floodplain solution
  • road/rail interface (public road and private crossings)
  • hydrology modelling of catchments across the study area including Gowrie Creek, Westbrook Creek, Pariagara Creek and the Macintyre Brook.
  • social impact assessment
  • noise.

Engagement activities to date have included letters, phone calls and meetings with directly affected landowners, workshops with key stakeholders, community information sessions, a community survey, newsletters, project e-news, interactive map and social media.

You can also contact us during business hours on 1800 732 761 or email us at inlandrailqld@artc.com.au.

Community Consultative Committees (CCC) – Inner and Southern Darling Downs

To find out more click on your local CCC:

Inner Darling Downs CCC

Southern Darling Downs CCC

The Border to Gowrie (B2G) section is one of 13 projects that complete Inland Rail. It comprises approximately 145km of new dual gauge track and 71km of upgraded track from the New South Wales/Queensland border, near Yelarbon, to Gowrie Junction, north west of Toowoomba in Queensland.

This section will connect one of Australia’s most productive farming regions by rail to markets, including to Brisbane, Melbourne, Sydney, Adelaide and Perth, more quickly, more reliably, in larger volumes and at a lower cost. This will help producers to be more competitive, opening up more market options for them.



Project status

The project is nearing completion of the reference design development phase. Pending project approval from the Australian and Queensland governments, the reference design will be finalised and the detailed design phase of the project will start.

The B2G preliminary draft Environmental Impact Statement (EIS) was sent to the Office of the Coordinator-General (OCG) for review in late 2019. The Queensland Coordinator-General will evaluate our preliminary draft EIS document against the terms of reference (ToR) as well as predicted economic and social impacts, and seek formal submissions from landowners and the community later this year. We will keep you informed about the submissions process.

Reference design

The proposed alignment is one element of the reference design. You can view the proposed rail alignment on our interactive map.

Other elements of the reference design include proposed public road and rail crossings, and the project footprint. The project footprint is the area that may be required for the construction and operation of the Inland Rail. The project footprint varies in width to accommodate proposed changes to local roads, earthworks, access tracks and construction material storage and production.

Information from the community and field studies played a key role in determining the proposed alignment. Other considers included the technical viability, safety, operational restrictions, constructability, environment, and community and property impacts.

For more information about the proposed alignment, public road rail crossings and community feedback in your suburb, please read our local area fact sheets and our visualisations.

Condamine floodplain crossing

Since the release of the proposed Condamine floodplain crossing in late 2018, Inland Rail has continued consultation with landowners and key stakeholders to update the flood model and design of the crossing solution.

The flood model has been expanded to incorporate additional local flow paths, in particular within the Back Creek catchment, and has also been validated against the 2013 flood event. We have undertaken further sensitivity testing on the model to determine how inflows from local creeks may impact water levels and velocities in a 1-in-100 (1% Annual Exceedance Probability (AEP) flood event in order to gain more robust results based on local knowledge. We have also included additional data from the Warwick and Cecil Weir stream gauges, as well as anecdotal data of historic flood events prior to 1921, to improve our flood frequency analysis. These updates have allowed improved understanding of flooding behaviour in the Condamine floodplain but have not resulted in significant changes to the overall model or required considerable updates to the crossing design.

The Condamine floodplain crossing design has been updated to incorporate community feedback. Key changes included:

  • extending the proposed bridge over the North Branch by approximately 250m north
  • moving the proposed Yandilla rail bridge further south and combining with the proposed Grasstree Creek bridge
  • increasing the number of proposed culverts near Yandilla grain silos to ensure the drainage channel to the south of the silos has enough culverts to convey flood water.

The proposed Condamine floodplain crossing solution remains within the existing rail corridor, and now comprises:

  • 6 bridges
  • 6.1km total bridge length
  • Approximately 500 culverts (900mm – 2.1m in diameter).

Assessment of the proposed Condamine floodplain crossing solution using the updated flood model indicates that in a 1% AEP event, the solution is likely to change flood behaviour at 23 private properties that already experience some degree of flooding. This includes changes in peak water levels of 10-50 mm at six houses. We are continuing to work with landowners to develop mitigation measures to minimise and manage any changes to flood behaviour.

You can view the floodplain crossing design here.

The proposed Condamine floodplain crossing solution is subject to assessment as part of the EIS process and may change as a result of conditions of approval, further investigations, or detailed design.

Consultation with affected landowners is ongoing.

Environmental Impact Statement (EIS) progress and investigations

Following acceptance of the ToR in 2018, ARTC has been undertaking investigations for the B2G EIS.

An EIS is a tool the government uses to assess:

  • the current environment in the area of the project
  • potential environmental, economic and social impacts of the project
  • proposals to avoid, minimise, mitigate and/or offset those potential impacts.

The B2G team has been gathering on-site information within the project study area. Numerous environmental and technical investigations, including geotechnical surveys, baseline noise monitoring, Indigenous and European cultural heritage surveys, hydrology studies, traffic counts, and fauna and flora surveys have been carried out. Results of these investigations have informed the development of the EIS and project reference design.

To view upcoming investigation works, you can view our latest notification.

Community consultation

Since September 2018, we have engaged with key stakeholders, landowners and the community regarding the development of the reference design and EIS. This engagement centred around the following elements:

  • focused area of investigation
  • alignment development in Millmerran, Millwood and Whetstone
  • Condamine floodplain solution
  • road/rail interface (public road and private crossings)
  • hydrology modelling of catchments across the study area including Gowrie Creek, Westbrook Creek, Pariagara Creek and the Macintyre Brook.
  • social impact assessment
  • noise.

Engagement activities to date have included letters, phone calls and meetings with directly affected landowners, workshops with key stakeholders, community information sessions, a community survey, newsletters, project e-news, interactive map and social media.

You can also contact us during business hours on 1800 732 761 or email us at inlandrailqld@artc.com.au.

Community Consultative Committees (CCC) – Inner and Southern Darling Downs

To find out more click on your local CCC:

Inner Darling Downs CCC

Southern Darling Downs CCC

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