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Method Statement: Building Gridline Setting Out and Control Transfer Prior to Excavation, Piling, and Foundation Works inspection and test plan example.

Inspection and Test Plan for Method Statement: Building Gridline Setting Out and Control Transfer Prior to Excavation, Piling, and Foundation Works

AI-assisted inspection and test plan connected to a method statement, with PDF and Excel export.

Published 24 May 2026 Rev. 00 2 views
About this ITP: This ITP governs inspections, tests, and records for survey control, gridline setting out, and offsets. It sets tolerances and defines hold/witness points for release.

More than a static template

Unlike a downloadable Word or PDF template, this ITP is an AI-assisted editable starting point directly connected to its method statement. Every inspection activity, hold point, and acceptance criterion is structured and ready to adapt to your project.

  • AI-assisted customization — Tailor inspection activities and acceptance criteria to your specific project scope.
  • Linked method statement — This ITP is connected to the corresponding method statement describing the work sequence.
  • Multiple export formats — Download as a formatted PDF or editable Excel spreadsheet.
  • Editable starting point, not a final document — Review and verify all content against your project specifications and standards before use.

What you can customize

When you save this ITP to your account, every inspection row becomes editable. You can add, remove, or modify:

  • Inspection activity — Description of what is being inspected.
  • Inspection type — Hold point (H), Witness point (W), Review (R), or Monitor (M).
  • Responsibility — Contractor, subcontractor, engineer, or client.
  • Frequency — How often the inspection occurs.
  • Acceptance criteria — Referenced standard or specification requirement.
  • Records — Forms, test reports, or checklists required as evidence.

Why this ITP is used

To ensure dimensional control accuracy and compliance before excavation, piling, and foundation works commence.

Who uses this inspection and test plan

Contractor survey team, QA/QC, and the Engineer/Consultant responsible for approvals.

When this ITP is prepared and submitted

Applied from pre-survey verification through control establishment, grid set-out, offsets, independent checks, and final release.

Who receives or approves this ITP

Engineer/Consultant for hold/witness approvals and final release.

Inspection scope

CRS/design verification, instrument checks, primary/secondary control, gridline set-out, offsets/pile set-out, transfers, and ISC.

Typical hold, witness, and review points

Hold: Primary control approval; Offset/profile boards; Final release. Witness: TBM loops; Grid set-out; Pile set-out; Transfers.

Typical inspection records

Control Adjustment Report, TBM Level Book, Stakeout/Offset Registers, ISC Report, Photos, IR/ITR approvals, calibration certificates.

Important approval note

This ITP is an AI-assisted editable starting point, not a pre-approved document. Before use on any project, all inspection activities, hold points, and acceptance criteria must be reviewed and approved by the relevant parties (superintendent, principal contractor, or client representative) in accordance with your contract and project quality plan.

Always verify acceptance criteria against your applicable drawings, specifications, and regulatory requirements. Hold points must be confirmed with the relevant authority before work proceeds past that point.

Inspection and test plan

Activity Inspection / Test Acceptance Criteria Responsibility Record
CRS and IFC grid verification Review of CRS, grid coordinates, and benchmarks CRS/Datum confirmed; no discrepancies in grid definitions Survey Manager / Engineer Design Review Record / RFI Response
Instrument field verification ISO 17123 checks: EDM baseline, two-peg test, prism constant Within manufacturer/ISO limits [Verify] Land Surveyor / QA/QC Instrument Check Sheet, Calibration Certs
Primary horizontal control establishment Traverse observation and least-squares adjustment Linear misclosure ≥1:20,000; residuals within limits [Verify] Land Surveyor / Engineer (Witness) Control Adjustment Report, Coordinates Register
Primary vertical control (TBM loop) Closed level loop Closure ≤4 mm × √km; TBM consistency ±3 mm [Verify] Land Surveyor / Engineer (Witness) TBM Level Book, Closure Sheet
Secondary/working control installation Closure to primary control and redundancy checks Positional tolerance ≤±8 mm [Verify] Land Surveyor / QA/QC Working Control Plan & Register
Gridline setting out Stakeout residuals and independent TS measurement Grid intersections within ±5 mm; line straightness ±5 mm/30 m [Verify] Land Surveyor / Engineer (Witness) Stakeout Report, Photos
Offset pegs/profile boards for excavation Check perpendicularity, spacing, and RL markings Horizontal ±20 mm; RL ±10 mm [Verify] Land Surveyor / Engineer (Hold) Offset Register, IR/ITR
Pile set-out (if applicable) Verification of pile centers vs design coordinates Pile center within ±10 mm [Verify] Land Surveyor / QA/QC / Engineer (Witness) Pile Set-out Sheet, IR/ITR
Control transfer to basement/upper floors Redundant resection and closure between levels Inter-level misclosure ≤±6 mm [Verify] Land Surveyor / QA/QC Level Transfer Log, Check Report
Independent survey check (ISC) Re-observation of ≥10% (min 5) points with different setup ΔH ≤±8 mm; ΔV ≤±5 mm or project-specific [Verify] QA/QC Surveyor / Third Party ISC Report and Sign-off
Final documentation and release Completeness check of reports and registers All required records submitted and approved Survey Manager / Engineer Approval/Release Notice, IR

This table is a read-only public reference. Download the PDF or Excel version, or customize this ITP to edit it for your project.

Frequently asked questions

At least 10% of points or a minimum of five per area/level, unless the specification requires a higher frequency.

Yes, where permitted and with suitable sky visibility. Results must be validated against project control and adjusted accordingly.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: Building Gridline Setting Out and Control Transfer Prior to Excavation, Piling, and Foundation Works method statement, which describes the step-by-step construction sequence, resources, materials, equipment, safety controls, and environmental controls for this activity.

View the Method Statement: Building Gridline Setting Out and Control Transfer Prior to Excavation, Piling, and Foundation Works method statement →

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