Slow Drainage — Before-And-After Documentation
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.
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.
Read the complete Machine Before - Dugong - Machine After guideWhy Water Returns After Grading
Water that returns to a repaired depression may indicate an unchanged outlet control, continuing inflow or settlement. Treat the recurrence as new evidence rather than simply repeat the same pass.
Before moving material
Compare the repaired levels with the drainage route and water observations.
Receiving operation and checks
Observe another suitable rainfall or irrigation event. Record where and when water reappears.
Subsurface and hydraulic causes may need specialist assessment.
Read the complete Why Water Returns After Grading guidePoor Surface Drainage
Poor surface drainage can result from a blocked outlet, a reversed fall, a damaged crossing or local depressions. Grading should follow the identified cause.
Before moving material
Trace water from its entry point to the receiving outlet.
Receiving operation and checks
Inspect the drainage route during a suitable water event. Check that the complete route remains connected through boundaries and crossings.
Surface grading cannot remedy every subsurface drainage problem.
Read the complete Poor Surface Drainage 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.
Prepare a project enquiryContinue through the network
Surface and verification · Applications and rental · Equipment and technology
Return to this reference group