HumeLink West

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HumeLink will deliver a more reliable and more sustainable grid, create more than 1600 jobs and generate major benefits for local communities along the route.

Transgrid has contracted UGL Engineering Pty Ltd and CPB Contractors Pty Ltd (UGL-CPB JV) to deliver the western portion of the HumeLink project.

HumeLink West involves the expansion of the existing Wagga Wagga 330 kV substation, the design and construction of a new substation at Gugaa and connection works to the future Maragle 500 kV substation. The project also includes a new 500 kV double circuit transmission line to connect the substations at the Wondalga interface point with HumeLink East.

Figure 1: Division of HumeLink East and HumeLink West sections

Main construction continues to progress along the HumeLink West alignment. Main construction involves building transmission towers and stringing transmission lines across the 140km HumeLink West alignment, building the Maragle and Gugaa 500 kV substations, and upgrading the Wagga Wagga 330 kV substation.

Enabling works that began in early 2025 are continuing in some areas, including the establishment of access points and access tracks.

The Kunama and Tarcutta worker accommodation facilities have been operating since late 2025 and are now housing over 700 project workers.

The first HumeLink West transmission tower was erected in October 2025 at Gregadoo, east of Wagga Wagga. Since then, more than 10% of the transmission towers needed for HumeLink West have been erected. Tower assembly and erection crews are currently building around five towers each week, with construction expected to continue to ramp up as more workers join the project. Stringing of the first conductors between towers will start near Wagga Wagga in May 2026.To learn more about tower construction and conductor stringing, please see our tower fact sheet and stringing fact sheet.

As construction activity increases, there will be more project vehicles traveling along local roads and near construction sites. Stay informed about current traffic conditions – visit Live Traffic NSW for real-time updates on road closures, delays and conditions. To learn more about vehicle movement across the project alignment, view the HumeLink West Vehicle Movement Plan. 

View our latest community newsletter to learn about our recent events and initiatives and hear more about what to expect over the coming months.

We continue to host community information sessions and participate in local events across the HumeLink West project area to share updates and connect with the community. If you're interested in learning more about the project or speaking with the team, we encourage you to come along to our upcoming events listed below. You can also visit us at the Snowy Valleys Resilience Hub, 37 Pioneer Street Batlow, open on Monday to Friday, from 9am to 5pm.

To receive regular updates about events in your community, register to the HumeLink email distribution list.

Main construction is now underway and involves building transmission towers and stringing transmission lines across the 140km HumeLink West alignment, building the Maragle and Gugaa 500 kV substations, and upgrading the Wagga Wagga 330 kV substation.

Main construction activities include:

• Excavating with piling rigs and excavators for the tower foundations
• Concrete works for the tower bases, including reinforcement and concrete pours
• Assembling and lifting the towers using cranes
• Stringing conductors
• Road upgrade works, including Ashfords Road at Gregadoo, Mates Gully Road at Tarcutta and Green Hills
• Access Road at Kunama
• Vegetation clearing, excavation and earthwork
• Installing amenities, fencing, signage, barriers and other controls
• Equipment and other deliveries to work sites with heavy and light vehicles
• Survey, investigation and monitoring, including drone and aerial photography
• Equipment testing and operation.

Some enabling works – which started in early 2025 – will continue, including access point establishment, access tracks and completion of the Kunama accommodation facility. 

The work is undertaken by HumeLink West Joint Venture (UGL Engineering and CPB contractors), in line with the relevant guidelines and approvals.

Work will take place during standard construction hours of 7am to 6pm Monday to Friday and 8am-1pm on Saturdays. If out of hours work is required, we will contact all impacted landholders and near neighbours seven days before work starts.

Stay informed about current traffic conditions in the HumeLink project areas. Visit Live Traffic NSW for real-time updates on road closures, delays and conditions. To learn more about vehicle movement across the project alignment, view the HumeLink West Vehicle Movement Plan.

As part of construction on the HumeLink project, large trucks and trailers will be delivering electrical equipment, including transformers and reactors, to the Maragle and Gugaa 500 kV Substations.

These deliveries require large trucks and may result in temporary traffic disruptions along parts of the transport route. The trucks and trailers will be escorted by NSW Police, due to their length. We are committed to keeping local communities informed ahead of time so residents and motorists can plan accordingly. Details of upcoming deliveries are provided below.

Oversized vehicle movements are scheduled to take place periodically between April and July, subject to weather and construction conditions. Movements will generally occur during daylight hours and, where possible, outside of peak local traffic times.

*Please note that dates and times may change at short notice due to operational requirements.

Explore the HumeLink West fact sheets for information on HumeLink West construction works. To view Transgrid's fact sheets that were issued during the planning stages, click here.

We're making it easy for local business to participate and find work with the project through the Industry Capability Network (ICN).

Visit the HumeLink West ICN page to register your interest and search for available packages.

We have also partnered with Supply Nation to connect Aboriginal businesses with procurement opportunities on the project. Register for Supply Nation here.

Local Business Register

The project requires a variety of products and services, and all packages may not be listed on ICN. If you’re interested in registering your business for potential opportunities as the project progresses, please submit an expression of interest to the Humelink local business register.

Please note: registering your interest does not guarantee employment.

To see the status of the planning approvals pathway visit the NSW Government Major Projects Planning Portal.

Enquiries and feedback

Your feedback is valuable to us and helps improve our systems, processes and interactions with the community. We are committed to effectively engaging with you. If you would like to make an enquiry or provide feedback to the HumeLink West project team, please fill out the form below or call the HumeLink hotline on 1800 317 367 (free call, business hours).

You can also provide feedback by emailing humelink@transgrid.com.au 

Subscribe to our newsletter here

Please note:

• All responses will remain confidential.
• If you are a business interested in working on the HumeLink Project, please complete our online HumeLink Local Business Register form. Additionally, we encourage businesses to register with the ICN Gateway (free registration) to access the details of work packages – all our packages are advertised on the ICN Gateway. Available work packages can be found at Humelink West (icn.org.au) and Humelink East (icn.org.au).
• If you would like to express your interest in working with HumeLink West, please complete the following form: Humelink West Employment EOI.
• For media enquiries, please direct these to Transgrid’s media team. Contact details available at: https://www.transgrid.com.au/media-publications
• If you are a landowner please contact your Land Access Coordinator as primary point of contact.