Aerial shot of construction on the Silver City Highway

Cobb Highway and Silver City Highway sealing and upgrade program

The NSW Government is providing $145 million to seal and upgrade all the remaining unsealed sections on the Cobb and Silver City highways in far western NSW.

This brings the total investment by the NSW Government to $195 million since 2011 which includes sealing 153 kilometres on the Silver City Highway and 132 kilometres on the Cobb Highway.

Silver City Highway inital seal program as at March 2022. Cobb Highway inital seal program as at March 2022

View or download a larger version of the project map

Latest news

MAR 2022

MAR 202220 Kilometres to go on the Cobb Highway

A further 5 kilometres has been sealed on the Cobb Highway at Kerpa Station, 71 kilometres North of Ivanhoe. This leaves just 20 kilometres to be sealed by June 2023 on the Cobb Highway which will provide a fully sealed road from the Victorian border, to the Barrier Highway, near Wilcannia, via Ivanhoe and Hay.

NOV 2021

NOV 2021Sealing continues on Cobb and Silver City highways

Section four of the Silver City Highway between Tibooburra and Warri Gate is now sealed. The completion of this 9.8 kilometre section now adds to a total of 119.4 kilometres of the highway sealed since 2011.

The final 33.3 kilometres from Tibooburra to Warri Gate will be completed by December 2022 delivering a fully sealed, safer and more reliable north-south connection between Victorian and Queensland through western NSW.

And on the Cobb Highway, 106.4 kilometres has been sealed, with 21.3 kilometres to be sealed by December 2022.

The final four kilometres will take an additional six months to complete which will include the realignment work planned for the Cobb Highway near Mount Manara to create a straighter road for safer journeys.

Read the latest community update (PDF, 2.33Mb).

JUL 2021

JUL 2021Far west highways to receive a digital upgrade

The Cobb and Silver City Highways are now home to automated, electronic road signs designed to improve safety and better inform motorists about road conditions.

Minister for Regional Transport and Roads Paul Toole said nine electronic signs have now been installed on the Cobb Highway between Hay and Wilcannia and the Silver City Highway between Broken Hill and the Queensland border.

“This will be a game changer for the Far West because until now, we’ve relied on all signs being changed manually to indicate if the highways are open or closed,” Mr Toole said.

Read the full release.

SEP 2020

SEP 2020Seal of approval after deluge tests Silver City Highway

The freshly sealed Silver City Highway was put to the test during last weekend’s storms which saw it reopened and back in action five times faster than a similar deluge back in 2016.

Acting Deputy Premier and Minister for Regional Transport and Roads Paul Toole said the area received up to 75mm of rainfall during last Saturday's downpour which saw creeks flowing with more than 700mm of runoff across some sections of highway.

Read the full release.

JUL 2020

JUL 2020Major milestone reached for the Silver City Highway

Life is changing for the people of Tibooburra in Far West NSW as the final piece of bitumen is sprayed on the Silver City Highway connecting the corner country town to the city of Broken Hill.

This historic milestone, part of the NSW Government’s $145 million commitment to seal the last dirt roads in the NSW highway network, will open up tourism in the region and change the lives of the people who live there.

Until now, a lot of experiences have centred around flat tyres from corrugations, getting bogged in bulldust or mud, being stuck at home or cut off from attending school or visiting the local shops and medical services after it has rained.

The sealing of this section of highway will ensure fewer highway closures, provide greater economic opportunities for local and interstate businesses and make trips faster, smoother and safer.

Over 260,000 tonnes of gravel has gone into the sealing of this section of highway as well as supporting 150 jobs equating to 10,000 worker hours.

Since the upgrade of the Cobb and Silver City Highways began more than 89 kilometres of road had been sealed.

Project information

In June 2018, the NSW Government announced it will invest $145 million to seal and upgrade the remaining 209 kilometres of the Cobb and Silver City Highways by 2023. This brings the total investment in the highways to $195 million since 2011.

The Cobb Highway runs from Moama, on the Victorian border, to the Barrier Highway, near Wilcannia, via Ivanhoe and Hay.

The Silver City Highway connects Buronga, on the Victorian border with the Queensland border via Broken Hill and Tibooburra.

The Cobb and Silver City highways provide a north – south connection between north-western Victoria and north-western NSW. They are the only roads in the NSW State Highway network that are not sealed. Unsealed highways in this part of NSW can easily flood and remain closed for weeks after periods of considerable rain. Highway closures currently impact the road up to 12 times per year, directly affecting local residents and businesses, essential services and interstate road users.

Once the remaining sections of the highway are sealed, families and businesses will have long-term access to safer and more reliable roads in western NSW.

What does the project mean for the local and wider network?

  • Fewer highway closures – As part of the road upgrade, table drains will be established on both sides of the highways to remove water from the road during periods of heavy rainfall.
  • Greater economic opportunities for local and interstate businesses - The upgrade will provide a more secure transport route for local produce and industries.
  • More efficient travel – A sealed road will mean motorists have a smoother journey, better visibility of the road and a more direct route across western NSW.
  • Safer travel conditions - Gravel roads can be difficult for motorists to travel on due to their roughness and the amount of dust generated by vehicles. Sealing the highways leads to improvements in road safety.

Other benefits for locals and the wider community include:

  • More reliable access to schools and hospitals
  • Reduced travel times by up to 30 minutes
  • Improved connections for the freight and livestock industry in remote NSW
  • Reduced time, cost and resources used in road maintenance
  • Improved wet weather immunity and more reliable road access
  • Smother and safer road surface.

The key features of the sealing and upgrade work include:

  • Constructing north and southbound traffic lanes
  • Rebuilding and sealing the roads
  • Installing drainage structures to combat impacts of flooding
  • A new bridge at Packsaddle Creek, completed in April 2019
  • Installation a landing strip for the Royal Flying Doctor Service at Shannon’s Creek, completed in 2015.

Silver City Highway:

Work is progressing with just 33.3 kilometres of unsealed road remaining on the Silver City Highway between Tibooburra and Warri Gate.

Completed sealed sections on the Silver City Highway:

  • Tibooburra to Warri Gate Section 4 – 9.8 kilometre section of the Silver City Highway, 35 kilometres north of Tibooburra
  • Tibooburra to Warri Gate Section 5 – 10 kilometre section of the Silver City Highway. 44 kilometres north of Tibooburra
  • Peak Hill Central – 3.4 kilometre section of the Silver City Highway, 284 kilometres north of Broken Hill
  • Peak Hill Causeway - 4.3 kilometre section of the Silver City Highway, 271 kilometre north of Broken Hill
  • One Tree – 7.3 kilometre section of the Silver City Highway, 250 kilometre north of Broken Hill
  • Coally South – 5.2 kilometre section of the Silver City Highway, 245 kilometre north of Broken Hill
  • Salt Lake – 4.6 kilometre section of the Silver City Highway, 240 kilometre north of Broken Hill
  • Cobham Lake – 1.8 kilometre section of the Silver City Highway, 228 kilometre north of Broken Hill
  • Shannons Creek North Stage Two – 3.7 kilometre section of the Silver City Highway, 224 kilometre north of Broken Hill
  • Shannons Creek North Stage One – 3 kilometre section of the Silver City Highway, 221 kilometre north of Broken Hill
  • Williams Tank Stage Two – 3.6 kilometre section of the Silver City Highway, 204 kilometre north of Broken Hill
  • Milparinka – 4.9 kilometre section of the Silver City Highway, 292 kilometres north of Broken Hill
  • Warratta Creek – 8 kilometre section of the Silver City Highway, 298 kilometres north of Broken Hill
  • Milpa Flat – 5 kilometre section of the Silver City Highway, 195 kilometres north of Broken Hill
  • William’s Tank, Stage One – 3.6 kilometre section of the Silver City Highway, 200 kilometres north of Broken Hill
  • Packsaddle Bridge and approaches – 2.4 kilometre section and construction of a bridge on the Silver City Highway, 175 kilometres north of Broken Hill
  • Eight Mile Creek – 7.2 kilometre of the Silver City Highway, 87 kilometres north of Broken Hill.
  • Barons Creek, Stage Two – 1.2 kilometre section of the Silver City Highway, 181 kilometres north of Broken Hill, closing a gap between previously sealed sections north of Barons Creek.
  • Eight Mile Initial Seal – 7.2 kilometres of the Silver City Highway, 87 kilometres north of Broken Hill.
  • Shannon’s Creek – 13.4 kilometre section of road, 207 kilometres north of Broken Hill, including constructing a 1.5 kilometre emergency landing airstrip. Isolated communities now have access to emergency services including the Royal Flying Doctor Service.
  • Barons Creek Initial Seal, Stage One and Three - 4 kilometre section of the Silver City Highway, 181 kilometres north of Broken Hill.
  • Euriowie Creek – 13 kilometre section of the Silver City Highway, 70 kilometres north of Broken Hill.

Cobb Highway:

Work is progressing with just 20 kilometres of unsealed road remaining on the Cobb Highway between Ivanhoe and Wilcannia

Completed sealed sections on the Cobb Highway:

  • Tasman Road – 6 kilometre section of the Cobb Highway, 11 kilometres north of Ivanhoe
  • Menindee Road North – 2 kilometre section of the Cobb Highway, 9 kilometres north of Ivanhoe
  • Monivea – 5 kilometre section of the Cobb Highway, 17 kilometres north of Ivanhoe
  • Eurella South – 6.4 kilometre section of the Cobb Highway, 22 kilometres north of Ivanhoe
  • Baden Park – 3.6 kilometre section of the Cobb Highway, 39 kilometres north of Ivanhoe
  • Gypsum Mine North – 5.5 kilometre section of the Cobb Highway, – 43 kilometres north of Ivanhoe
  • Springdale South – 2.9 kilometre section of the Cobb Highway, 48 kilometres north of Ivanhoe
  • Springdale – 7 kilometre section of the Cobb Highway, 51 kilometres north of Ivanhoe
  • Mount Manara South – 4.8 kilometre section of the Cobb Highway, 58 kilometres north of Ivanhoe
  • Kerpa Station North – 4.9 kilometre section of the Cobb Highway, 71 kilometres north of Ivanhoe
  • Glen Albyn South – 5.1 kilometre section of the Cobb Highway, 76 kilometres north of Ivanhoe
  • Dromore – 6.1 kilometres of the highway, 81 kilometres north of Ivanhoe
  • Rosewood – 4 kilometre section of the Cobb Highway, 100 kilometres north of Ivanhoe
  • Yelta – 6.4 kilometre section of the Cobb Highway, 109 kilometres north of Ivanhoe
  • Slamannon South – 3.1 kilometre section of the Cobb Highway, 115 kilometres north of Ivanhoe
  • Slamannon – 5.4 kilometre section of the Cobb Highway, 118 kilometres north of Ivanhoe
  • White Elephant Tank Extension – 2 kilometre section of the Cobb Highway, 103 kilometres north of Ivanhoe
  • Teryawynia – 5.1 kilometre section of the Cobb Highway, 130 kilometres north of Ivanhoe.
  • Fairmount – 4.4 kilometre section of the Cobb Highway, 95 kilometres north of Ivanhoe.
  • Fairmount 1 – 5.2 kilometre section of the Cobb Highway, 135 kilometres north of Ivanhoe.
  • Eurella – 10 kilometre section of road and installing drainage improvements to provide flood immunity and reduce road closures due to wet weather.
  • Teryawynia South – 6.1 kilometre section of the Cobb highway, 124 kilometres north of Ivanhoe.

All remaining unsealed sections of the Cobb and Silver City highways are now in planning or construction.

The Silver City Highway is expected to be completed by December 2022, with Cobb Highway sections to be completed by June 2023.

Transport for NSW is committed to keeping you informed as work continues to progress on the remaining unsealed sections.

Project documents

Community updates

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File Title Size
November 2021 community update

Sealing the Cobb and Silver City highways.

2.33Mb
July 2020 community update

Sealing of the Silver City Highway, Broken Hill to Tibooburra

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April 2020 community update

Sealing the Cobb and Silver City highways

1.35Mb
July 2019 community update

Sealing the Cobb and Silver City highways

1.06Mb
January 2019 community update

Sealing the Cobb and Silver City highways

1.3Mb

Media releases

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July 2021

Far west highways to receive a digital upgrade with electronic road signs

24.4Kb
September 2020

Seal of approval after deluge tests Silver City Highway

23.9Kb
July 2020

Silver City Highway reaches major milestone opening up Corner Country in Far West NSW

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April 2020

Sealing the deal on the Cobb and Silver City highways

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August 2019

Sealing the deal six months early for far west

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Contact us

For more information about this project, please contact:

Phone: 1800 167 499
Email:western.projects@transport.nsw.gov.au

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