Mass grading on a large site moves millions of cubic yards of material across dozens of zones, with compaction testing requirements, lift thickness limits, and geotechnical oversight all running simultaneously. The documentation challenge is not what to capture — it is capturing it in a way that is traceable, zone-specific, and ready for geotechnical engineer review when vertical construction cannot begin until the as-built package is delivered.
What documentation is required for mass grading operations?
Mass grading documentation requires: a pre-grading topographic survey before any earth is moved (50-foot grid maximum); a cut/fill balance log tracking quantities moved by zone; lift-by-lift compaction test records by zone with test method, results, and pass/fail against specification; interim grade surveys at subgrade and finish grade; a geotechnical certification signed by the project geotechnical engineer; and a final as-built grade survey at no greater than a 50-foot grid. The geotechnical as-built package is typically required before vertical construction can begin.
The pre-grading topographic survey is the most important documentation on a mass grading project — and the most often skipped. Once earth is moved, the original ground surface is gone. Without a pre-grading survey, quantity calculations rely on design assumptions that may not match field conditions, and disputes about earthwork volume — a primary driver of cost overruns on large site work — have no baseline to resolve against.
Pre-grading survey requirements:
On large sites, UAV photogrammetry or aerial lidar is increasingly used for the pre-grading survey. Both methods produce denser point clouds than traditional ground survey and reduce field time significantly — but the survey must still be tied to project control and benchmarks.
Mass grading compaction documentation is only useful if it is traceable to a specific location and lift. A summary report that shows 47 passing tests somewhere on the site at some point during grading does not satisfy the geotechnical engineer — the tests need to be located on a plan.
| Required Field | Purpose |
|---|---|
| Zone identifier | Links test to location on grading plan — "Zone A, Pad 3, NW corner" |
| Lift number | Identifies which compacted layer was tested — required for lift-by-lift traceability |
| Test date and time | Establishes when the test was performed relative to weather and material placement |
| Test method | ASTM D1556 (sand cone), D6938 (nuclear gauge), or other — must match specification |
| Moisture content and dry density | Raw test data required, not just percent compaction |
| Maximum dry density reference | Proctor test report number used for comparison |
| Percent compaction result | Pass or fail against specification requirement |
| Technician name and signature | Credentials may need to be on file with geotechnical engineer |
A cut/fill balance log is the production tracking tool for mass grading. It records earthwork moved by zone and day, tracks whether the site is ahead or behind the estimated balance, and identifies when import or export is becoming necessary before the grading contractor is caught by surprise.
Daily cut/fill tracking fields:
This log is not a substitute for a final quantity survey — it is a daily management tool. The final quantity reconciliation requires a post-grading topographic survey compared to the pre-grading baseline.
The geotechnical as-built package is the deliverable that unlocks vertical construction. On large sites, it typically includes:
Sitemark tracks compaction test results by zone and lift throughout the grading operation, links tests to their locations on the site plan, and exports the full compaction log in the format the geotechnical engineer needs — without requiring a separate data assembly step at project close.
Sitemark captures compaction tests, zone records, and grade shots across large sites and assembles the geotechnical as-built package automatically — so vertical construction is not delayed waiting for documentation.
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