Survey, Design & Verification

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.

9 guides shown

• Surveying for Land Grading

  Surveying for grading establishes the relationship between the site and the intended surface.

• Existing-Surface Survey

  An existing-surface survey records what is present before soil moves.

• Finished-Surface Survey

  A finished-surface survey records the result after grading.

• Digital Terrain Models

  A digital terrain model represents a surface from measured or designed data.

• Cut-and-Fill Mapping

  Cut-and-fill mapping shows differences between existing and target surfaces.

• Drainage Grade Design

  Drainage grade design must connect the contributing area to a suitable outlet.

• Irrigation Grade Design

  Irrigation grade design starts with the method of applying water and the field's soil and supply conditions.

• Design - Measure - Move - Verify

  Design, measure, move and verify is a closed loop.

• What Verification Evidence Proves

  Verification evidence should answer the acceptance question asked.