Precise measurement and recording of underground utility positions to survey-grade accuracy. Captured to MGA and AHD — ready for direct integration with your engineering design models, GIS, and CAD systems.
Utility surveying takes utility locating one step further. Where locating detects and marks underground services, surveying accurately measures and records their position in a georeferenced coordinate system — MGA (Map Grid of Australia) for horizontal position and AHD (Australian Height Datum) for elevation. For subsurface detection, see our subsurface utility mapping services.
This precision matters. When utility data is captured in MGA/AHD, it integrates directly with engineering design models without coordinate transformation — eliminating a common source of positioning errors and redesign costs.
Through our sister company HR Surveyors — a team of 70+ professional surveyors — we have direct access to survey-grade GPS, total stations, and laser scanners. Our utility surveying is informed by professional survey methodology, not just locating equipment.
| Locating | Surveying | |
|---|---|---|
| Output | Paint marks + report | Georeferenced data (MGA/AHD) |
| Accuracy | Approximate position | Survey-grade (±10–20mm) |
| Integration | Manual marking transfer | Direct CAD/GIS import |
| Deliverable | Written report | DWG, shapefile, 3D strings |
Utility surveying demands equipment that's accurate enough for engineering design — not just locating equipment. HR Utilities combines subsurface detection technology with professional survey instrumentation.
All equipment is BYDA approved, maintained to manufacturer calibration standards, and operated by trained technicians who understand both detection methodology and survey principles.
Through HR Surveyors, we have access to the latest survey technology — ensuring your utility data meets the same accuracy standards as your feature survey, civil design, and set-out work.
From detection to survey-grade deliverables — a four-stage process backed by professional survey methodology.
NULCA-certified technicians locate underground services using EMI, GPR, and passive detection methods.
Detected utility positions are recorded using GPS, total station, and laser scanners — referenced to MGA and AHD.
Field data is processed, quality-checked, and assigned AS5488 quality levels. Attribute data — utility type, material, diameter — is added.
Survey plans are delivered in CAD and GIS formats — ready for direct integration with your design models.
Survey-grade utility data in the formats your design team uses.
HR Utilities is the utility-locating arm of HR Surveyors — a team of 70+ experienced surveyors. This unique position means your utility survey data is captured and processed with the same rigour as a professional engineering survey.
You get a single point of contact for detecting, surveying, and delivering utility data — no need to coordinate between separate locating and surveying companies. From detection to detailed survey plans, we handle the complete workflow.
70+ professional surveyors backing every utility survey
Survey-grade GPS and total station positioning
MGA and AHD datums for direct design integration
Single point of contact for locating + surveying
NULCA certified technicians with survey methodology training
Utility surveying is the process of precisely measuring and recording the position of underground utilities in a georeferenced coordinate system — typically MGA (Map Grid of Australia) and AHD (Australian Height Datum). Unlike basic utility locating which identifies where a pipe is, utility surveying captures the position with survey-grade accuracy so the data can be used directly in engineering design software.
Utility locating detects and marks underground services — it answers 'where is the pipe?' Utility surveying adds precision measurement — it answers 'exactly where is the pipe, to survey-grade accuracy, in a coordinate system your design team uses?' HR Utilities provides both: detection by NULCA-certified locators, and survey-grade positioning backed by 70+ professional surveyors through HR Surveyors.
MGA (Map Grid of Australia) provides a standardised horizontal coordinate system, while AHD (Australian Height Datum) provides a standardised vertical reference. When utility data is captured in these datums, it can be directly integrated with engineering design models, survey plans, and GIS systems without coordinate transformation — eliminating a common source of positioning errors.
We use survey-grade GPS (GNSS) receivers, total stations, and laser scanners for precision measurement, combined with GPR and EMI for subsurface detection. All equipment is BYDA approved and maintained to manufacturer calibration standards. Our survey capability is backed by HR Surveyors, a team of 70+ professional surveyors with access to the latest survey technology.
Need utility survey data for a specific project? Contact our team to discuss your requirements.
Expert utility locating services with BYDA certified precision.
Serving projects across Australia with advanced subsurface mapping solutions.