Evanston Park – Gawler-One Tree Hill Road

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Site investigation works at Evanston Park, Gawler

Site investigation works are underway along Gawler One Tree Hill Road, from Somerton Road up to and including the roundabout at Schomburgk Drive. These investigations will inform the feasibility and design of a proposed new water trunk main connecting to the existing Barossa Water Trunk Main.

These investigations will help assess network resilience, improve system operability, and support the delivery of safe and reliable water services for current and future customers in the area.

What to expect

Investigation works at Gawler-One Tree Hill Road include:

  • surveying and potholing of existing services
  • excavation works for soil testing
  • acoustic monitoring

Potholing will also occur along Gawler–One Tree Hill Road and at the Schomburgk roundabout. Speed and lane restrictions will be in place to keep crews and the community safe. You may also notice small acoustic‑testing devices in the area over the next 3–4 weeks.

Nearby residents may experience some dust, noise, vibration and occasional traffic delays. We will work to complete the investigations as quickly as possible and minimise impacts to the community.

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

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

Sandy Creek tanks: Kalperri Road | SA Water

Gawler Belt: Paternoster, Kentish, Redbanks and Twartz Roads

Gawler East: Martin Road, Concordia Road and Sunnydale Avenue

Need more information?

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

Go back to the project home page

Site investigation works at Evanston Park, Gawler

Site investigation works are underway along Gawler One Tree Hill Road, from Somerton Road up to and including the roundabout at Schomburgk Drive. These investigations will inform the feasibility and design of a proposed new water trunk main connecting to the existing Barossa Water Trunk Main.

These investigations will help assess network resilience, improve system operability, and support the delivery of safe and reliable water services for current and future customers in the area.

What to expect

Investigation works at Gawler-One Tree Hill Road include:

  • surveying and potholing of existing services
  • excavation works for soil testing
  • acoustic monitoring

Potholing will also occur along Gawler–One Tree Hill Road and at the Schomburgk roundabout. Speed and lane restrictions will be in place to keep crews and the community safe. You may also notice small acoustic‑testing devices in the area over the next 3–4 weeks.

Nearby residents may experience some dust, noise, vibration and occasional traffic delays. We will work to complete the investigations as quickly as possible and minimise impacts to the community.

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

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

Sandy Creek tanks: Kalperri Road | SA Water

Gawler Belt: Paternoster, Kentish, Redbanks and Twartz Roads

Gawler East: Martin Road, Concordia Road and Sunnydale Avenue

Need more information?

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

Go back to the project home page

  • Traffic Changes - Gawler One Tree Hill Road, Evanston Park

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    Where: Roundabout at Gawler One tree Hill Road and Schomburgk Drive

    When: Thursday 23 and Friday 24 April

    Hours of work: road closure between 7.00am to 5.00pm

    Key Details

    • local access will be maintained at all times
    • If your driveway is affected, we will notify you in advance
    • please follow the detour signage on-site.

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

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

    Where: Roundabout at Gawler One tree Hill Road and Schomburgk Drive

    When: Thursday 23 and Friday 24 April

    Hours of work: road closure between 7.00am to 5.00pm

    Key Details

    • local access will be maintained at all times
    • If your driveway is affected, we will notify you in advance
    • please follow the detour signage on-site.

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

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

Page last updated: 10 Apr 2026, 11:29 AM