Irrigation Grade Design
Irrigation grade design starts with the method of applying water and the field's soil and supply conditions. Minimising unnecessary soil movement is one consideration alongside water distribution.
Plan the surface handover
What to verify
Record levels and water observations together.
Keep the design reference and survey evidence traceable. State units, coordinate system, vertical datum and revision, then compare independent checks with the issued target. Surface measurements establish geometry; they do not establish the material quality of a buried layer.
A single published slope cannot replace site-specific irrigation design.
Primary reference
References explain the relevant topic. They do not endorse Dugong or verify the pictured configurations.
Continue the job brief
Include the location, existing condition, intended surface, material, available tractor and proposed dates.