Great Western Highway Upgrade, NSW

Geotechnical Monitoring

Project Background

This large tunnelling project is located near the Blue Mountains Region of NSW. When completed, the $2.5Billion project will be Australia’s longest road tunnel at 11kms long and will form the main road corridor between Central Western NSW and the Sydney Region.

The project is currently undergoing geotechnical investigations by high profile engineering firms who have engaged EWS to supply and install vibrating wire piezometers and our unique satellite telemetry EWS Switch VWT and EWS Well Cap dataloggers to monitor pore pressure and gather critical baseline data before the construction works begin.


    EWS’ vibrating wire piezometers and our innovative range of EWS Switch VWT remote telemetry dataloggers are being installed to monitor pore pressure across the project, data reliably transmitted from very remote sites to Orion is being utilised by the lead geotechnical engineers as part of their investigation which will assist in making informed design decisions.

    Outcomes & Benefits

    The EWS VWT range provides the ideal solution for monitoring soil pore pressure in the remote locations and rugged environments where installations of vibrating wire piezometers are taking place. Our Iridium satellite telemetry dataloggers are being rolled out to ensure reliable data transmission even in areas of no cellular coverage. The individual transmission from each device also eliminates the need for tedious radio line of sight requirements and single point failure risk. 

    Our selection of robust housings provides the best protection possible for the rugged environment and eliminates the need for maintenance visits.  

    The projects geotechnical engineers will view pore pressure remotely through Orion from the comfort of their offices without having to access remote areas of the site again.

      Enquire with EWS

      EWS Australia specialise in the manufacture of vibrating wire satellite telemetry and geotechnical monitoring for remote environmental monitoring applications and design bespoke solutions to suit your needs.

      EWS Australia Office Locations

      Western Australia

      Head Office
      Bayswater, Perth 6053
      Call 1300 982 331


      Operations Office
      Sunshine Coast 4573
      Call 1300 982 331


      Operations Office
      Melbourne 3166
      Call 1300 982 331


      Operations Office
      Brookvale, Sydney 2100
      Call (02) 7257 7100


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      PO Box 638
      Claremont, WA 6010
      EWS Environment - Water - Geotechnical - Data

      EWS Australia

      PO Box 638
      Claremont, 6010
      Perth, Western Australia

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