Earthworks Contractor — Identify Machine Before for Precision Grading

Machine Before - Dugong - Machine After

The machine before Dugong determines what material arrives; the machine after Dugong determines what surface must leave. An excavator can expose formation, a loader can deliver a stockpile, and a roller can compact the placed layer. The scraper's role is bounded by those interfaces.

Before moving material

Identify the upstream operation and its remaining defects.

Receiving operation and checks

Hand over the measured surface to compaction, cultivation, paving or turf preparation. Record which operation owns levels, materials and final acceptance.

The workflow can include Dugong where suitable; it does not assume Dugong replaces adjacent equipment.

Earthworks Design

Earthworks design compares existing terrain with the intended surface and accounts for material movement. It must also consider where the resulting water and traffic will go.

Before moving material

Obtain a suitable survey and identify constraints.

Receiving operation and checks

Issue the approved revision and construction checks. Review critical connections and quantity assumptions.

Geometric balance does not establish usable material balance or structural design.

Precision Grade Control

Precision grade control is the stage where a reference system is commissioned for the intended surface. It needs design transfer and equipment checks before productive grading.

Before moving material

Confirm design revision, datum and the working-edge reference.

Receiving operation and checks

Verify surface results independently during and after the work. Record calibration and any reference interruptions.

Machine guidance is not acceptance certification.

Record the job inputs

Use this checklist to turn the scenario into a specific brief. Retain the design revision and agree who accepts each completed layer.

• Existing condition, extent and the reason for intervention
• Required finished purpose, receiving operation and acceptance criteria
• Material type, layer role, source, receiving area and volume state
• Reference levels, datum, survey method and issued design revision
• Available tractor, implement configuration, travel route and turning space
• Checks before work, stopping points and evidence retained at handover

Checklist ticks apply only while this page is open. Include the completed brief in your project records.

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