Balpara was engaged by Ramsay Civil Contractors to provide Detailing, Auditing, Survey and As-builts for the new HV conduits and kiosk location for new Melbourne Water Upgrade of O’Shannasay Reservoir. 

Project Overview

The O’Shannasay Reservoir Pipeline is located south of O’Shannassy Reservoir, approximately 70 km northeast of Melbourne’s central business district. The area and surrounding land form part of the Yarra Ranges National Park. 

As part of the O’Shannassy Dam Upgrade project and its Carbon Emission Reduction plan, Melbourne Water will be installing a new plug valve and mini-hydro generator. The latter will generate electricity from the transfer of water from O’Shannassy Reservoir and will supply electricity to the local Melbourne Water Infrastructure, with any excess exported to the electricity grid. 

To meet required AusNet electricity design standards for the plug valve and mini-hydro, a new electricity supply is required. Balpara’s Accredited AusNet Auditing Team was brought on to provide Detailing, Auditing, Survey and As-builts for the various new conduits and the new kiosk slab location from which power will be drawn. 

Balpara is also required to set out trenches for underground conduits, explain VEDN Auditing requirements, provide the Detailing of installed assets and capture onsite information. 

Project Scope

• Assisting in the coordination of contractors and explaining AusNet’s VEDN Auditing requirements to ensure
  they comply. 
• The Drafting of as-builts, ensuring they adhere to Ausnet Standards. 
• Completing the Detailing of installed assets and capturing of information onsite. 
• Setting out the trenches for the new underground conduits. 

Providing Detailing, Auditing, Survey and As-builts of: 

• The conduit for the 1.1 km high voltage supply cable from the east side of the Yarra River to the mini-hydro site. 
• The 50mm conduit for the communication cable in the power cable common trench from the east side of the Yarra River to the mini-hydro site. 
• The conduit for an Ausnet HV electrical connection from the site substation to the closest overhead power cable pole. 
• The new kiosk substation foundation and installation, and capping of conduits into slab. 

Value Add

As one of the exclusive AusNet accredited network auditors, Balpara is able to ensure that all works adhere to AusNet standards. We are also uniquely positioned to provide multiple services to the client, resulting in a more streamlined and cost-effective approach.

Relevant Accreditation/Quality Standards

Balpara is VESI and AusNet accredited in surveying, design, drafting and auditing. We have held ISO9001 certification for over six years without non-conformances, and have attained re-certification to the new AS/NZS 2016 Standard. 

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• Upper Yarra Dam Reservoir Upgrade 
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