Gawler East: Martin Road, Concordia Road and Sunnydale Avenue

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Upgrading our water network in Concordia and Gawler East

To improve capacity and secure reliable water services for existing and future customers in the Roseworthy region, we’re upgrading the local water network in Concordia and Gawler East.

Construction is now underway, with new water mains being installed alongside existing mains to strengthen the network. There are no expected interruptions to water supply during the works.

When and where we’re working
(See maps below for details)

Martin Road, Concordia

  • Monday to Friday, 7:00 am to 5:30 pm
  • Changed traffic arrangements expected until December 2025


Sunnydale Avenue and Concordia Road, Gawler East

  • Monday to Friday, 7:00 am to 5:30 pm
  • Changed traffic arrangements will be in place until April 2026
  • Some works along Barossa Valley Way will occur at night to reduce daytime disruptions – those affected will be notified in advance

What to expect

  • Changed traffic arrangements will be in place across the area until mid-2026
  • Work may take place during the day, at night or on weekends to help maintain schedule and minimise disruption
  • You may notice some noise, vibration and dust during construction
  • We’ll continue working closely with the community to minimise impacts wherever possible

Please note: Timeline dates are subject to change based on program requirements and weather conditions.

What happens to roads and footpaths after our works?

We work closely with the local council and follow all required reinstatement obligations, reinstating the parts of the road, footpath or the environment directly impacted by our works.

Find out more about reinstatement

Nearby works

As part of this major upgrade, other nearby works are also happening on:

Go back to the project home page

Need more information?

Visit our FAQs page for answers to the most asked questions.

Upgrading our water network in Concordia and Gawler East

To improve capacity and secure reliable water services for existing and future customers in the Roseworthy region, we’re upgrading the local water network in Concordia and Gawler East.

Construction is now underway, with new water mains being installed alongside existing mains to strengthen the network. There are no expected interruptions to water supply during the works.

When and where we’re working
(See maps below for details)

Martin Road, Concordia

  • Monday to Friday, 7:00 am to 5:30 pm
  • Changed traffic arrangements expected until December 2025


Sunnydale Avenue and Concordia Road, Gawler East

  • Monday to Friday, 7:00 am to 5:30 pm
  • Changed traffic arrangements will be in place until April 2026
  • Some works along Barossa Valley Way will occur at night to reduce daytime disruptions – those affected will be notified in advance

What to expect

  • Changed traffic arrangements will be in place across the area until mid-2026
  • Work may take place during the day, at night or on weekends to help maintain schedule and minimise disruption
  • You may notice some noise, vibration and dust during construction
  • We’ll continue working closely with the community to minimise impacts wherever possible

Please note: Timeline dates are subject to change based on program requirements and weather conditions.

What happens to roads and footpaths after our works?

We work closely with the local council and follow all required reinstatement obligations, reinstating the parts of the road, footpath or the environment directly impacted by our works.

Find out more about reinstatement

Nearby works

As part of this major upgrade, other nearby works are also happening on:

Go back to the project home page

Need more information?

Visit our FAQs page for answers to the most asked questions.

  • Traffic Changes - Concordia Road, Concordia

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    When: 10 November 2025 – 19 November 2025

    Where: Starting at the junction of Concordia Road and Barossa Valley Way, Gawler East

    Hours of work: 7:00am – 5:00pm, Monday to Friday

    Due to unforeseen circumstances, planned works in the area could not be completed within the original timeframe. As a result, Concordia Road will be closed to traffic until the works are completed mid next week.

    Key Details:

    • this section of road will be closed to traffic at all times
    • for safety, the road will remain closed outside of working hours
    • please follow the detour signage on-site
    • some noise, vibration and dust may be noticed during these works.

    Detour Map

    Please note, traffic arrangements may change depending on site conditions. We’ll restore any impacted roads, footpaths or the environment as soon as it’s safe and practical to do so.

    Thank you for your patience while we complete these essential works.

  • Day works – corner of Concordia Road and Barossa Valley Way

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    From November 2025, we’ll be upgrading the local water infrastructure along Concordia Road. This includes replacing the existing booster pump station located at the corner of Concordia Road and Barossa Valley Way.

    To support these major network upgrades, a site compound will be established at the junction of Concordia Road and Barossa Valley Way, Gawler East. The compound will include offices, staff amenities, carparking and storage areas for machinery and construction materials. It will be set up with our contractors, John Holland Guidera O’Connor Joint Venture, from late November 2025.

    Construction of the new booster pump station will begin in late November 2025 and continue through to mid-2027.

    We’ll aim to complete these works as efficiently as possible, minimising disruption to the community.


    When: Late November 2025 – mid-2027

    Where: Corner of Concordia Road and Barossa Valley Way

    Hours of work: 7:00am – 5:00pm, Monday to Saturday

    Please note, traffic arrangements may change depending on site conditions. We’ll restore any impacted roads, footpaths or the environment as soon as it’s safe and practical to do so.

    Thank you for your patience while we complete these essential works.

    Find out about detours near you.

  • Stay informed and have your say

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    As we upgrade our water and wastewater networks, we’d love to hear from you. Your feedback helps us understand what’s working well and where we can improve. Visit this link to have your say.

    Read our Community Newsletter for updates on works happening near you, how we’re working to minimise disruptions, and ways to stay informed.

  • Martin Road, Concordia

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    When: January to November 2025

    Where: northern section of Martin Road between numbers 163 and 284

    Hours of work: 7:00 am to 5:00 pm, Monday to Friday. Occasional Saturday work may be required

    Key details:

    • there will be reduced speed limits on Martin Road.
    • at times, the road will be a single lane with a stop and go traffic system in place.
    • vehicles will still be able to travel through the works but, short delays are expected.
    • the works will involve excavation and the installation of large pipes.
    • no interruptions to water supplies are expected.

    For more details, read Martin Road Works Commencing Letter

    We appreciate your patience as we complete this important work.

    Read more about how we restore any roads, footpaths or the environment impacted by our works.

Page last updated: 14 Nov 2025, 02:31 PM