Grading
CSI Division 31, Earthwork
Reshaping a site's ground surface to the elevations shown on the civil drawings, cutting high areas down and filling low areas in, establishing both the pad a building sits on and the slopes that direct stormwater away from it rather than toward it.
Why it matters
Grading mistakes are expensive specifically because they're often invisible until it rains; a slope that's off by a small amount can direct water toward a foundation instead of away from it, a problem that may not show up until well after the project is complete and the original grading contractor is long gone.
On a real project
A site is graded to the elevations and slopes shown on the civil engineer's grading plan, verified against a fresh site survey, so that finished grade slopes stormwater away from the building toward the designed drainage system rather than pooling against the foundation.
Who this matters most to
An Equipment Operator executes cuts and fills to the grading plan's exact elevations, often using GPS-guided equipment for precision. A Surveyor verifies as-graded elevations against the design before the next phase of work builds on top of the graded surface.
Where this goes wrong
A grading crew finishes a site close to the design elevations but slightly off at one corner near the building, not realizing the small discrepancy actually creates a low point right against the foundation. The first significant rain after backfill is complete pools water against the foundation wall instead of draining away, a costly problem to fix once landscaping and paving have already covered the area.
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