As-built reports get rejected not because the construction was bad, but because the documentation was incomplete. Inspectors have specific expectations about what must be in the report, how deviations must be presented, and what certifications are required. Meeting those expectations on the first submission saves weeks of revision cycles.
What do inspectors require in a construction as-built report?
Construction as-built reports must contain: actual measured values (not design values), deviation calculations comparing measured to design, benchmark and instrument identification traceable to the project datum, and signed certification by a licensed surveyor or qualified QC technician. Common reasons for rejection include missing benchmark identification, design values used instead of measured values, non-conformances listed without corrective action records, and missing surveyor certification.
Regardless of project type or jurisdiction, a complete as-built report contains the following elements. Missing any one of them will result in a return for revision.
| Element | What Inspectors Check | Common Failure |
|---|---|---|
| Survey control information | Benchmark ID, datum, and coordinate system used | Benchmark not identified or not tied to project datum |
| Instrument description | Equipment type, model, and calibration date | Calibration certificate not included |
| Measured values | Actual field-measured elevations and dimensions at each required point | Design values copied in instead of measured values |
| Design values | Contract design elevation or dimension at each point | Missing — inspector cannot calculate deviation without it |
| Deviation calculations | Measured minus design at each point | Not calculated — inspector required to compute manually |
| Tolerance comparison | Pass/fail at each point per specification tolerance | No tolerance stated, or tolerance not from contract documents |
| Non-conformance records | Out-of-tolerance points with corrective action or waiver | Failures listed but no corrective action documented |
| Surveyor/technician certification | Signed statement that data is accurate and methods followed spec | Signature missing or uncertified technician signed |
| Date and project identification | Survey date, project name, contract number | Missing dates make the report unverifiable |
The core elements are constant, but specific requirements vary by project type. The table below summarizes the most common differences.
| Project Type | Key Additional Requirements | Who Accepts |
|---|---|---|
| Municipal sewer | Invert elevations at every manhole and every connection, CCTV reference numbers, pipe slope calculations | City/county public works inspector |
| DOT road | Cross-sections at 25-50 ft intervals, subgrade and surface elevations, material test results | State DOT project engineer |
| Land development grading | Pad elevations, top-of-curb, drainage swale profiles, storm inlet inverts | City grading inspector / civil engineer of record |
| Solar farm | Pile elevation at every pile, grading certification for panel zones, drainage compliance | EPC engineer / owner's representative |
| Airport | FAA AC 150/5370-10 compliance, pavement cross-section data, CBR test results at defined intervals | FAA inspector / airport authority |
| Pipeline | Centerline position and depth at regular intervals, bend locations, cathodic protection locations | Owner's inspector / state pipeline authority |
Experienced construction inspectors describe consistent patterns in the reports that get returned for revision. The top reasons:
The fastest path to sign-off is to treat the report as a communication document, not a data dump. Inspectors review many reports and appreciate clear organization. Best practices:
Sitemark generates as-built reports in this format automatically — summary first, data second, non-conformances flagged with corrective action, benchmark and instrument information embedded in the header. Reports typically pass inspector review on first submission.
Sitemark captures field data, calculates deviations, flags non-conformances, and generates inspector-ready as-built reports automatically. Start free.
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