Engineering
Surveys
Built for
Australia
Northbig Surveyors is a professional engineering survey firm delivering precision across power substations, energy infrastructure, roading, drainage, bridges and major civil projects throughout Australia.
Specialist Survey
Services
From high-voltage substations across Victoria to renewable energy corridors, roading upgrades, and drainage systems — we deliver where Australian infrastructure demands precision.
Power Substation Surveys
Survey control, as-built documentation and precise site layout for high-voltage substation construction and upgrades across Victoria. Specialists in 66kV, 132kV and 220kV installations, fully compliant with Australian electrical safety standards and Energy Safe Victoria requirements.
Energy & Renewable Projects
Engineering surveys for Australia's growing renewable energy sector, including solar farm layout and as-builts, wind farm access tracks, transmission line corridors, and battery storage facility set-out across regional Victoria and New South Wales.
Roading & Highway Surveys
Alignment surveys, cross-sections, pavement as-builts and corridor mapping for VicRoads, local councils and private developers. From residential subdivision roads in Melbourne's growth corridors to rural highway upgrades across regional Victoria.
Drainage & Stormwater Surveys
Detailed drainage surveys, invert levels, catchment mapping and drainage system as-builts for Melbourne Water, councils and developers. Including LIDAR-assisted catchment analysis and flood modelling support across Victoria's urban and peri-urban fringe.
Bridge & Structure Surveys
Deformation monitoring, as-built surveys and structural set-out for bridges, rail overbridges, culverts and retaining walls. Supporting VicTrack, Level Crossing Removal Authority and local government infrastructure programmes across Victoria.
Topographic & GPS Surveys
High-resolution digital terrain models, contour surveys and geodetic control networks for engineering design. Drone-assisted aerial capture for large sites. Compliant with Survey Co-ordination Act Victoria and ICSM standards.
Project Work Gallery
Real survey projects delivered by our team across Victoria and Australia — substations, highways, bridges, rail, energy and civil.
A selection of our recent engineering survey projects across Victoria and Australia.
Precision Total Station Work
Surveyor operating a Leica total station on a major civil infrastructure project. Engineering survey delivered to sub-millimetre tolerances for structural set-out.
Highway Upgrade Survey
Robotic total station and survey vehicle on a regional highway upgrade. Alignment and grade control on newly formed pavement subgrade.
Energy Plant Set-Out
Leica total station at a large industrial energy plant — gas scrubber towers and process equipment in background. Structural and mechanical set-out.
GPS Machine Control Survey
GPS rover and Panasonic Toughpad machine control on a highway pavement project. Real-time grade control data delivered to road construction equipment.
Highway Milling & Set-Out
Total station set-out alongside highway milling machine during pavement rehabilitation on a regional Victorian highway. Precision grade control throughout.
GPS Highway As-Constructed Survey
RTK GPS as-constructed survey on newly resurfaced highway. Northbig surveyors operating on active road corridor with full traffic management in place.
Substation Cable Pit Survey
As-built survey of high-voltage cable pits and conduit installation at a major substation construction site. Orange HV conduits routed to transformer bays.
132kV Transformer Set-Out
Precision survey set-out for a 132kV power transformer installation. Survey control established to millimetre accuracy for transformer base alignment and bushing positioning.
Switchyard Slab Set-Out
As-built and set-out survey of reinforced concrete slab construction within a major switchyard. Rebar placement verified against design coordinates prior to concrete pour.
Leica Total Station — Substation
Leica FlexPoint robotic total station in operation at a large high-voltage substation with dual-instrument control across the yard.
HV Circuit Breaker As-Built
As-built survey of installed circuit breakers and disconnectors within a completed high-voltage yard. Equipment placement verified against issued-for-construction drawings.
Bridge Abutment Survey
Leica total station survey of bridge abutment and waterway crossing. As-built verification of concrete abutment structure with CAT compactor working nearby.
Rail Overbridge Deck Survey
Survey of rail overbridge deck construction — total station monitoring beam placement as crane lowers precast elements. Level Crossing Removal Authority programme.
LXRP Rail Trench Survey
Leica total station within a level crossing removal rail trench. Track slab set-out and clearance verification with crane operations overhead.
Construction Set-Out & Pour
Leica total station on-site during a concrete pour for civil foundations. Real-time set-out and level control to the construction crew.
Gas Turbine Facility Survey
Leica robotic total station inside a gas turbine power generation facility. Mechanical plant set-out and as-built documentation to sub-millimetre tolerances.
Rail Corridor Alignment Survey
Track geometry and alignment survey on an electrified metropolitan rail corridor. Total station set-out with works crews and CAT plant operating ahead.
Major Urban Excavation Survey
Deep excavation and piling survey at a major Melbourne infrastructure project. Rebar starter bars surveyed for piling set-out with multiple excavators on site.
Professional Survey Equipment
Northbig survey equipment suite: Leica GS16 high-precision GNSS antenna, Leica total station, Panasonic Toughpad field controller and precision prism targets — ready for deployment.
Zone Substation — Dusk
Zone substation and transformer installation nearing completion at dusk on a regional Victorian greenfield site. Survey control delivered across all stages.
Freeway Overbridge As-Constructed Survey
Leica total station as-constructed survey of a completed freeway overbridge and newly paved carriageway. Pavement levels, drainage pits, and bridge clearance verified against design prior to opening.
Survey-Grade Equipment
We operate industry-leading survey instrumentation, ensuring our data meets Australian standards and is fit for engineering design, construction and legal purposes.
Leica Total Station
Robotic total stations with 1" angular accuracy and 1mm + 1.5ppm EDM. Ideal for precise set-out on substation and civil projects across Victoria.
Trimble GNSS RTK
Network RTK GPS receivers using Victorian CORSnet-N for sub-centimetre positioning on large infrastructure corridors, energy projects and mining applications.
DJI Phantom / Matrice Drone
Survey-grade UAV with photogrammetry and LiDAR payloads for large-scale topographic data capture. CASA-certified operators for Australian airspace compliance.
Leica ScanStation LiDAR
3D terrestrial laser scanner for complex structure surveys, heritage documentation, and detailed as-built capture on Victorian infrastructure and substation upgrades.
Australian Infrastructure Survey Specialists
Northbig Surveyors is a Melbourne-based professional engineering survey firm with deep knowledge of Australian regulations, infrastructure networks, and construction standards. We partner with energy companies, civil contractors, state government authorities, and local councils to deliver survey data that is accurate, timely, and fit for engineering purpose.
Extensive knowledge of Australian electrical safety standards, major network service provider requirements, and electrical exclusion zone protocols for live and under-construction substation access across all states.
Operating from Melbourne with established project experience across Victoria, New South Wales, South Australia and beyond. We mobilise rapidly and understand Australian site conditions at first hand.
Professional indemnity and public liability insurance maintained to Australian standard. All survey outputs are signed and certified, court-admissible, and compliant with Victorian survey legislation.
Construction sites don't wait. We understand Australian project schedules, EBA obligations and contractor programme pressures — our team mobilises at short notice and delivers on time.
From Brief to Certified Output
We review scope, plans, and site access to define survey requirements and deliverables clearly upfront.
Our team mobilises with GPS, total stations, and drone equipment matched to site conditions.
Precise observations captured and verified against control networks and project benchmarks.
Data processed and drafted into CAD, GIS or model formats ready for your design team.
Signed plans, digital files and reports delivered to spec, on schedule — every time.
Surveyor, Sales &
Support — Live
Got a question? Our AI assistant acts as a senior surveyor, sales advisor, and admin support — all in one. Ask about survey types, project requirements, timelines, costs, or how to engage us. Available any time, across all of Australia.
Ready to Start
Your Project?
Melbourne-based and ready to mobilise. Speak to our team for a detailed scope and quote within 24 hours.
Let's Talk About
Your Project
Whether you're in early planning or need a survey team on site in Melbourne this week — call or email and we'll scope your requirements fast. No obligation.