Great Western Highway looking towards Hartley Valley

Great Western Highway Upgrade Program – Katoomba to Lithgow

Together, the Australian and NSW Governments are investing more than $4.5 billion towards upgrading the Great Western Highway between Katoomba and Lithgow. The Katoomba to Lithgow duplication will provide major economic and safety benefits. It will improve the connection between Central West NSW and Sydney, reduce congestion, improve resilience and freight productivity, and provide a safer and more reliable journey for thousands of residents, commuters, tourists and freight operators who travel in, around and through the Blue Mountains.

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Latest news

APR 2022

APR 2022Facts on Freight

View information on freight in the Blue Mountains .

MAR 2022

MAR 2022Review of Environmental Factors

The Review of Environmental Factors for the Great Western Highway Project - Medlow Bath Upgrade was displayed from 27 July – 5 September 2021.

Following liaison with key local stakeholders, including Blue Mountains City Council, environmental assessment for the Great Western Highway duplication between Katoomba and Blackheath (East) will be considered and determined at once to capture all the potential impacts of the upgrade between the two Blue Mountains townships, including Medlow Bath.

This means that the determination of the Review of Environmental Factors (REF) for Medlow Bath and the release of the Submissions Report to this REF will be held until the REF for the Katoomba to Blackheath section of the upgrade has completed its display.

Transport for NSW plans to exhibit the REF for the East section of the highway upgrade, between the towns of Katoomba and Medlow Bath and Medlow Bath and Blackheath, in the first half of 2022.

For more information, please read the March 2022 Community Update (PDF, 345Kb).

FEB 2022

FEB 2022Environmental assessment for Blue Mountains communities

The environmental assessments for the Great Western Highway duplication between Katoomba and Blackheath will be considered and determined together to capture all potential impacts of the upgrade.

View the media release for more information.

Project information

The Great Western Highway Upgrade Program is an infrastructure program of national importance. It will make the Blue Mountains and the Central West and Orana more attractive places to live, and will unlock the potential of regional NSW.

The NSW Government has progressively upgraded sections of the Great Western Highway to make it safer and more reliable for all road users. This upgrade will complete the final 34 km connection of a modern dual-carriageway link across the Blue Mountains.

The Great Western Highway Upgrade Program consists of:

  • Medlow Bath Upgrade
    An upgrade and duplication of the existing surface road corridor with intersection improvements and a new pedestrian bridge.
  • Katoomba to Blackheath Upgrade
    Upgrade, duplication and widening of the existing surface road corridor, with connections to a tunnel portal at Blackheath.
  • Blackheath to Little Hartley Upgrade
    Construction of a tunnel bypass of Blackheath and Mount Victoria, with connectivity between the two proposed tunnels currently under further investigation.
    We anticipate that the Environmental Impact Statement will be exhibited for consultation mid 2022.
  • Little Hartley to Lithgow Upgrade
    Upgrade, duplication and widening of the existing surface road corridor, with connections to a tunnel portal at Little Hartley.

Little Hartley to Lithgow (West Section) Review of Environmental Factors consultation November 2021 – January 2022

The Review of Environmental Factors (REF) and concept design for the Little Hartley to Lithgow (West Section) upgrade was released for community consultation on 23 November 2021, with consultation continuing to 16 January 2022. The engagement included six community information sessions, which were a mixture of online and COVIDSafe face-to-face sessions. Transport for NSW is preparing a submissions report summarising and providing a response to submissions received during the REF display period. The submissions report is expected to be released in early 2022, when the REF is determined. Project information and the full REF can be found at nswroads.work/gwhwestconsult

Medlow Bath Upgrade Review of Environmental Factors consultation July – September 2021

The Review of Environmental Factors and Concept Design for the Medlow Bath Upgrade was released for community consultation on 27 July, with consultation continuing to 5 September 2021.

The engagement included six community information sessions, held online in order to comply with advice from NSW Health and Covid-19 restrictions. These sessions were attended by 146 people in total.

A number of targeted information sessions were also held with local businesses, groups and associations and a number of phone consultations were also held.

During the consultation period, we received 348 formal submissions from 250 individual members of the community, businesses and stakeholders. The Submissions Report to the Medlow Bath REF will be released when the REF is determined.

Blackheath tunnel options consultation October - November 2020

The preferred strategic route option for the bypass at Blackheath was released for consultation on 12 October 2020, focusing upon a long tunnel with various portal options. Consultation continued until 28 November. The engagement included three community information sessions, held online in order to comply with advice from NSW Health and Covid-19 restrictions. 241 people booked into the online consultation sessions, while a further 125 people watched the recorded sessions at a later date. Seven phone consultations were also held, at the request of individual residents. More than 6211 people visited the online virtual consultation portal and more than 2486 items of feedback were received by the project team. You can view or download the community consultation summary report (PDF, 5.52Mb).

Medlow Bath upgrade consultation June - August 2020

The strategic design for the upgrade of the Great Western Highway through Medlow Bath was released for community consultation on 29 June, with consultation continuing to 31 August 2020. The engagement included eight community information sessions, held online in order to comply with advice from NSW Health and Covid-19 restrictions. The sessions were attended by 70 people. A number of targeted information sessions were also held with local businesses, groups and associations and a number of phone consultations were also held. More than 850 items of feedback were received by the project team.You can view or download the community consultation summary report (PDF, 3.7Mb).

Katoomba to Lithgow strategic design consultation November - December 2019

The strategic design for the upgrade of the Great Western Highway from Katoomba to Lithgow was released for community consultation on 07 November 2019, with consultation continuing to 16 December 2019. The engagement included nine community information sessions, two pop up displays and one public meeting held along the corridor at locations including Katoomba, Medlow Bath, Blackheath, Mount Victoria, Hartley and Lithgow. The sessions were attended by 1350 people and 1759 items of feedback were received by the project team. You can view or download the community consultation summary report (PDF, 18.5Mb).

The Blackheath Co-Design Committee (BCC) was formed by Transport for NSW in March 2020, following feedback from the community. The Committee included stakeholder group representatives, selected community representatives, and representatives from the Blue Mountains City Council and emergency services.

The BCC was not a decision making body, but the outcome of the BCC is an important input into the Government's decision-making process for determining a preferred route option and design as the program progresses.

The Committee's unanimously preferred option was for a long tunnel underneath Blackheath.

Blackheath Co-Design Committee Meeting Minutes

View or download:

Project documents

Project notifications

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April 2022 project notification

Social impact assessment surveys from Blackheath to Hartley from 11 April.

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March 2022 project notification

Geotechinical work on the Great Western Highway, from Blackheath to Little Hartley.

293Kb
March 2022 project notification

Emergency work on Great Western Highway, Mount Victoria.

256Kb
March 2022 project notification

Traffic management on the Great Western Highway at Mount Victoria following record rainfall.

240Kb
March 2022 project notification

Geotechnical investigations from Little Hartley to Lithgow from 14 March.

275Kb
Novemeber 2021 project notification

Field investigations in Blackheath, Mount Victoria and Little Hartley from 22 November.

621Kb
Novemeber 2021 project notification

Field investigations on Great Western Highway, Blackheath from Wednesday 3 November.

568Kb
August 2021 project notification

Field investigations in Medlow Bath from Thursday 19 August to Sunday 31 October 2021.

402Kb
August 2021 project notification

Geotechnical investigations in Medlow Bath from Monday 6 September 2021.

331Kb
August 2021 project notification

Air quality monitoring station installation in Blackheath, Mount Victoria and Little Hartley from Monday 16 August to Monday 13 September 2021.

149Kb
May 2021 project notification

Safety Upgrade works, Medlow Bath, from Wednesday 5 May.

1.17Mb
April 2021 project notification

Geotechnical investigation work on the Great Western Highway in Medlow Bath.

280Kb
March 2021 project notification

Investigation work on the Great Western Highway from Katoomba to Blackheath.

145Kb
March 2021 project notification

Investigation work on the Great Western Highway from Little Hartley to Lithgow.

166Kb
February 2021 project notification

Medlow Bath Rail corridor investigation work.

505Kb
January 2021 project notification

Geotechnical investigation work between Blackheath and Little Hartley.

172Kb
December 2020 project notification

Medlow Bath Safety Works.

371Kb

Fact sheets

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August 2021 Air quality monitoring stations fact sheet

Great Western Highway Upgrade Program.

256Kb
August 2021 Air quality fact sheet

Great Western Highway Upgrade Program.

505Kb

Media releases

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15 May 2022

Great Western Highway upgrade drives jobs bonanza

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15 May 2022

Have your say on the Katoomba to Blackheath Great Western Highway upgrade

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15 May 2022

Australia's longest road tunnel locked in for Blue Mountains

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22 February 2022

New approach for environmental assessment for Blue Mountains communities.

27.8Kb
13 December 2021

More time for feedback on Little Hartley to Lithgow plans.

28.1Kb
23 November 2021

Have your say on the Great Western Highway upgrade from Little Hartley to Lithgow......

28.6Kb
17 November 2021

Flora and fauna field work starts along future GWH tunnel corridor.

25.6Kb
14 September 2021

Historic Blue Mountains tunnel a step closer.

25.03Kb
31 August 2021

Preservation of Aboriginal heritage a key part of Blue Mountains Highway upgrade.

26.7Kb
27 August 2021

Medlow Bath highway design consultion extended.

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17 August 2021

Baseline air quality testing through Blue Mountains as part of great Western Highway upgrade.

25.6Kb
27 July 2021

Community shapes refined design for Medlow Bath Highway upgrade.

24.97Kb
14 June 2021

Great Western Highway upgrade powering ahead.

26.96Kb
14 June 2021

Safer passage through Medlow Bath ahead of full highway upgrade.

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4 June 2021

Archaeological dig to explore Aboriginal connection to Blue Mountains.

25.6Kb
3 May 2021

Australia’s longest road tunnel proposed for Great Western Highway Upgrade.

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3 March 2021

Doing the groundwork for highway upgrade.

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18 February 2021

Highway history to be preserved for future generations.

23.96Kb
18 December 2020

Contracts awarded for Great Western Highway upgrade works.

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17 December 2020

Safety drives highway upgrade at Medlow Bath.

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30 October 2020

More time to have your say on Blackheath tunnel.

24.7Kb
12 October 2020

Tunnel options best fit for Blackheath.

24.6Kb
1 October 2020

Heading west this long weekend? Making your journey home faster and safer.

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28 September 2020

Contract awarded for Great Western Highway upgrade through Medlow Bath.

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6 August 2020

Medlow Bath residents have more time to consider Great Western Highway design.

25Kb
7 June 2020

Medlow Bath residents invited to have their say on Great Western Highway design.

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4 June 2020

Two possible bypasses of Blackheath considered by committee.

25.1Kb
10 June 2020

Great Western Highway upgrade west of Lithgow.

23.96Kb
13 May 2020

Locals have their say on Great Western Highway upgrade.

25.4Kb
28 February 2020

Blackheath locals to help co-design Great Western Highway upgrade.

25.3Kb
3 December 2019

Blackheath community invited to meeting to learn more about the Great Western Highway upgrade.

25.1Kb
7 November 2019

Have your say on Great Western Highway.

26.1Kb
11 March 2019

Green light for $2.5 billion Great western highway duplication.

25.7Kb

 

Contact us

If you have any questions or would like more information please contact our project team:

Phone: 1800 953 777

Email: gwhd@transport.nsw.gov.au

Post: Great Western Highway Upgrade Program - PO Box 334, Parkes NSW 2870

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