What comes before fine grading — Precision Grading
Define the finished purpose, reference levels, underlying material condition and the evidence required by the receiving operation. Geometry alone does not establish structural or agronomic performance.
This reference assembles relevant extracts from the guide library. It is general project planning, not a local project report, verified specification or translated technical publication.
From Rough Grade to Fine Grade
Rough grading establishes the broad shape; fine grading corrects the remaining smaller deviations. Trying to finish while bulk quantities are still wrong can waste passes and disturb completed areas. The changeover should occur when levels are close enough, materials are suitable and the receiving surface is ready for controlled trimming.
Before moving material
Complete major excavation and isolate unsuitable ground.
Receiving operation and checks
Protect the finished area from uncontrolled traffic and schedule the next layer. Check local levels and continuity through joins, not only the average elevation.
Fine grading cannot rescue a weak formation hidden beneath a neat finish.
Read the complete From Rough Grade to Fine Grade guideMachine 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.
Read the complete Machine Before - Dugong - Machine After guidePrecision 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.
Read the complete Precision Grade Control guideRecord 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.
Checklist ticks apply only while this page is open. Include the completed brief in your project records.
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