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Method Statement: Installation of Precast Concrete Sewerage Manholes inspection and test plan example.

Inspection and Test Plan for Method Statement: Installation of Precast Concrete Sewerage Manholes

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

Published 05 Jul 2026 Rev. 00 2 views
About this ITP: This ITP defines hold/witness inspections and tests for precast sewer manhole installation, from base slab to watertightness testing and final survey.

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 verify that each construction step meets contract requirements and relevant standards, ensuring watertight, durable manholes.

Who uses this inspection and test plan

Contractor’s QA/QC team, Site Engineers, the Engineer/Client, and third-party inspectors.

When this ITP is prepared and submitted

From initial setting out through completion, with hold points at critical stages like reinforcement, joint closure, and watertightness testing.

Who receives or approves this ITP

Engineer/Client Representative

Inspection scope

Setting out, subgrade/blinding, base reinforcement and concrete, precast delivery, joints, lifting, pipe connectors, waterproofing, watertightness, backfill, as-builts.

Typical hold, witness, and review points

Hold: base rebar, joint waterstop pre-closure, watertightness test. Witness: concrete pour, ring placement, waterproofing application, frame level.

Typical inspection records

ITRs, delivery dockets, test results, survey reports, photos, permits, calibration certs, NCRs/CARs.

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
Setout verification Check coordinates and levels vs IFC Within specified tolerances (H ±10 mm, V ±5 mm) [Verify] Surveyor / QA/QC ITR-01 Setout check
Subgrade preparation and blinding FDT/NDG; visual for level/cleanliness Compaction ≥95% MDD (ASTM D698) [Verify]; blinding 50–75 mm, level ±10 mm Site Engineer / QA/QC ITR-02 Subgrade/Blinding
Base reinforcement inspection Bar size/spacing/cover; cleanliness Per approved drawings; cover 50–75 mm [Verify] QA/QC / Engineer ITR-03 Rebar (Hold)
Concrete placement and curing Slump, temperature, cubes/cylinders Meets class and strength; workmanship acceptable; finish to tolerance QA/QC ITR-04 Concrete
Precast units delivery inspection Visual/dimensional; certs Conform to EN 1917/ASTM C478; no damage at joints QA/QC ITR-05 Precast Receipt
Lifting setup and trial lift Rigging check vs lift plan Certs in date; WLL adequate; exclusion zone in place Lifting Supervisor ITR-06 Lift Setup
Joint preparation and hydrophilic strip placement Continuity, overlap, location Continuous; overlap ≥100 mm; correct primer/adhesive QA/QC / Site Engineer ITR-07 Joint Prep (Hold)
Ring placement and alignment Plumbness, joint closure Verticality ≤1:400; joint gap within manufacturer limits QA/QC / Lifting Supervisor ITR-08 Ring Install
Core drilling of pipe openings Hole diameter, invert level Per connector schedule; level ±5 mm; clean edges Site Engineer / QA/QC ITR-09 Core Drill
Pipe connector/boot installation Torque check; visual continuity Clamp torque per MDS; leak-free on local check QA/QC ITR-10 Boot Install
Internal benching/channel Profile and finish Smooth finish; slope ≥1:12 to channel Site Engineer / QA/QC ITR-11 Benching
Waterproofing application WFT/coverage log; adhesion (if specified) Total DFT 1.5–2.0 mm; pinhole-free; curing per MDS QA/QC / Manufacturer Rep (if required) ITR-12 Coating
Cover slab/cone and frame level Level survey Level ±5 mm; full bearing with 10–20 mm mortar bed QA/QC / Surveyor ITR-13 Frame Level
Watertightness test Vacuum (ASTM C1244) or water test (EN 1610) Meets specified criteria; no visible leaks [Verify] QA/QC / Engineer ITR-14 Water/Vac Test (Hold)
Backfill around manhole (if in scope) Layer thickness; density tests Compaction ≥95–98% MDD as specified; lift ≤200–300 mm; no damage Site Engineer / QA/QC ITR-15 Backfill
As-built survey and handover Coordinates/inverts/cover levels Within tolerance; documents complete Surveyor / QA/QC ITR-16 As-built

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

Follow the project specification. Options include vacuum testing per ASTM C1244 or water/air tests per EN 1610. Acceptance criteria must be confirmed with the Engineer.

Test each lift around the manhole at specified intervals (e.g., one test per 10–20 m length or per 50 m³). Frequency and methods are set by the project ITP.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: Installation of Precast Concrete Sewerage Manholes 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: Installation of Precast Concrete Sewerage Manholes method statement →

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