Volumetric Surveys

Drone and GPS-based volumetric surveys measuring stockpile quantities, excavation volumes, and earthworks progress for construction and contract management.
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Volumetric surveys measure the quantity of material in a stockpile, the volume of an excavation, or the difference between two ground surfaces  such as the cut and fill on an earthworks site. Results are used for invoicing, progress tracking, compliance with cleanfill volume limits, and contract verification.

In construction and earthmoving, volume measurements directly affect cost. Disputes over quantities are common when measurements are approximate or come from only one party. Independent, survey-accurate volumetric data gives both client and contractor the same factual basis and removes the most common source of payment disputes from the table.

We capture the 3D shape of stockpiles, excavations, or ground surfaces using drone photogrammetry for larger areas or GPS for smaller areas. We survey before and after work, then calculate the volume difference using specialist software  typically accurate to within a few cubic metres even on large volumes. Results are presented as volume reports, cross-section plots, or colourcoded maps showing cut and fill depths. Because all our data is georeferenced, calculations are repeatable and you can commission us at multiple stages and track volumes over time with confidence in the consistency of the method.

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Client feedback
"Orogen rate a particular mention; their responsiveness, attention to detail and collaboration is reflected in the quality of work put forward."
Kevin Beaver, General Manager - Woodridge Homes.
Volumetric Surveys

FAQ

Every site is different and there can be a lot of moving parts, but the questions are often the same. Here's what clients ask us most.
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What is a volumetric survey?

A volumetric survey calculates the volume of material that has been cut, filled, or stockpiled on a site by comparing survey data taken at different points in time. The result is used for payment purposes on earthworks contracts, for checking that earthworks comply with consent conditions, or for managing the movement of fill material on and off site.

When would I need a volumetric survey?

Volumetric surveys are used on earthworks construction contracts where payment is based on measured quantities, for tracking fill placement against a consent-approved earthworks plan, for managing cleanfill or disposal operations, and for stockpile management on quarry or aggregate sites.

How does Orogen calculate earthworks volumes?

We survey the site (or stockpile) before and after earthworks using a combination of ground-based and drone survey methods, then use specialist software to calculate the volume of material moved between the two surveys. Results are presented in a clear report showing cut volume, fill volume, and net balance.

Can a volumetric survey be used for contractual payment purposes?

Yes. Orogen's volumetric surveys can be prepared as formal measurement documents for use in progress payment claims and final account settlements under construction contracts. We follow recognised measurement standards and can provide sworn statements if required for dispute resolution.

How accurate are Orogen's volumetric calculations?

Accuracy depends on the method used and the terrain complexity. Drone surveys on open earthworks sites typically achieve accuracy within 1-2% of actual volumes. We document the methodology and accuracy in our reports so you can rely on the figures for commercial purposes.

How long does a volumetric survey take?

Most earthworks volumetric surveys are completed within three to five working days from site visit to final report. Time-critical or large-scale measurements can sometimes be turned around faster with advance notice.

Earthworks quantities that both sides can agree on without the argument. Talk to us for independent, survey-grade volumes.
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