We have a track record of successful execution of public and private infrastructure and provide a broad range of skills in the planning, design and delivery of projects. A systematic approach and attention to detail are key factors in our design methodology, along with our appreciation of how innovation can benefit our engineering solutions.

JDSi typically provides services as the lead engineer managing a team of specialist consultants including in-house assistance from our geotechnical and electrical teams. Our services can also be provided in a support role for large infrastructure projects.

We would welcome the opportunity to apply our knowledge and innovative thinking to deliver infrastructure projects of all complexities.

Engineering Planning & Design

Engineering Planning & Design
  • Roads and pavements
  • Intersections
  • Stormwater drainage and treatment
  • Geotechnical investigations
  • Bulk earthworks
  • Water and wastewater distribution
  • Power reticulation
  • Communications reticulation

Construction Support

  • Contract administration
  • Site inspections and works verification
  • Earthworks verification and testing

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Road Planning And Design

JDSi has the ability to plan and design roads and highways from initial planning, feasibility studies and concept designs through to detailed designs, tender and construction drawings and technical specifications. In addition to geometric design we also have expertise in pavements, seals, road safety and traffic control treatments, major intersections, traffic signals, pedestrian facilities and associated infrastructure to meet Main Roads Western Australia and local authority standards.

Stormwater Drainage

With increasing demand for sustainable and ecologically beneficial drainage infrastructure, JDSi brings vast experience in providing stormwater solutions across a variety of challenging projects. JDSi provides comprehensive drainage strategies that satisfy a wide range of stakeholder interests as our drainage experts are fully conversant with stormwater management and design including traditional conveyance requirements such as flood studies, pit and pipe design, open channels, culverts, and retention and detention systems both above and below ground.


We use our extensive experience in providing Bulk Earthworks modelling and strategies for a wide range of complex projects. Using our specialised software, JDSi can accurately model various scenarios for review of volumes and finished levels. Our in-house Geotechnical expertise adds significant value for sites with difficult ground conditions.

Utility Services

JDSi is a Water Corporation Prequalified Engineering Consultant for the delivery of Headworks Assets and has expertise in the planning, design and contract administration of Waste Water Pumping Stations, Water Distribution Mains, water and wastewater reticulation and drainage.

Electrical & Communications

JDSi provides design solutions for overhead and underground power reticulation, network upgrades and reinforcement, power quality upgrades, overhead to underground conversion, asset relocation and lighting design. We also undertake pit and pipe reticulation design to appropriate telecommunications standards.