Mitchell Freeway Southbound Widening BMD – Main Roads Western Australia

  • Client:
    BMD Constructions for Main Roads WA
  • Location:
    Mitchell Freeway, Perth Metropolitan Area
  • Project Type:
    Urban Highway Widening
  • Timeline:
    January 2021 – October 2021

Project Overview


Alliance Surveying was commissioned to deliver precision surveying for the southbound widening of the Mitchell Freeway. This metropolitan highway upgrade included additional lanes, ramp adjustments, bridge parapet modifications, median conversion, and drainage works.

Our projects were led by licensed land surveyors and supported by our in-house field staff and technical professionals. Together, they provided full surveying services throughout the project lifecycle, ensuring traffic flow integrity, design alignment, and compliance with Main Roads WA specifications. With project mobilisation within 7 days and fixed pricing, we ensured a seamless integration of services into BMD’s delivery schedule.


Key aspects of the project include:

Scope & Responsibilities

Our core responsibilities included:

  • Control network establishment across the freeway, ramps, and bridges for a reliable set-out
  • Lane and ramp widening set-out for traffic lane transitions
  • As-built surveys to validate lane geometry and drainage elements
  • As-built surveys at each construction milestone
  • Topographic mapping and cross-section generation for designers
  • Drainage structure set-out and depth verification
  • Digital deliverables for BIM and GIS integration

Field teams coordinated daily with BMD and Main Roads WA for lane closures, ensuring safe operations in live traffic conditions.

Key Challenges & Our Solutions

  • Maintaining traffic operations: All work was staged to maintain peak-hour flow, with precise set-out for phased lane transitions using robotic total stations.
  • Multiple alignments in constrained space: Our detailed control surveys enabled accurate positioning of lanes, ramps, barriers, and bridges in tight freeway corridors.
  • Urban infrastructure coordination: Liaising with drainage, electrical, and utilities teams required coordinated survey markers and real-time deliverables for multidisciplinary works.

Outcomes & Deliverables

  • All works delivered on time and on budget, under our fixed-price guarantee
  • Surveys commenced within 7 days of project award; quotes issued within 48 hours
  • No outsourcing, every task executed by our WA-based team, led by licensed surveyors and supported by experienced professionals
  • Delivered survey data and as-built models fully integrated into client design systems
  • Enabled real-time decision-making and facilitated contractor progress tracking

Project Gallery

Partner with a Trusted Land Survey Company

Alliance Surveying provides reliable, in-house surveying solutions for highway expansion and urban infrastructure.

Visit our Contact Us page to request a free fixed-price quote within 48 hours. We’ll schedule your mobilisation within 7 days.

Why Alliance Surveying?

Fast Turnaround:

All quotes are delivered within 2 days, guaranteed.

Swift Project Start:

Job commencement is guaranteed within 7 days of approval, so your project won’t face delays.

Transparent Pricing:

Our quotes are fixed; if unexpected costs arise, we cover the difference, ensuring no surprise charges.

Fully In-House Team:

We never outsource. Every step of your survey is handled by our own team of 30 experienced professionals.

Frequently Asked Questions

We handled control networks, lane set-out, ramp and drainage surveys, topographic mapping, and as-built verification.

We implemented phased set-outs aligned with lane closures and traffic management, ensuring safety and compliance with Main Roads WA protocols.

Yes. Our work was overseen by licensed surveyors and carried out by our in-house field and technical staff, with no outsourcing.

Absolutely. Our fixed-price agreements meant no unexpected costs for the client.

We mobilised within 7 days of confirmation, consistent with our turnaround commitments.

We deployed robotic total stations, GPS equipment, and 3D modelling software for detailed set-out and deliverables.

Through accurate control setups and scheduled deliverables, we enabled civil, drainage, and utility works simultaneously without errors.

We provided high-resolution digital survey models and CAD files for lane widths, drainage depths, barrier locations, and bridge structures.

No. Our meticulous planning, fast mobilisation, and live traffic coordination ensured smooth execution with zero stoppages.

Simply visit our Contact Us page and submit your project details. Our team will provide a free fixed-price quote within 48 hours and schedule mobilisation within 7 days.

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