Free trench bedding and backfill ITP template

What this plan covers

Reusable baseline for ordinary utility trench earthworks from clearance and formation through bedding, pre-cover inspection, surround, backfill, specified earthworks verification and handover. Excludes structural trench support design, deep excavation engineering, pipe-system pressure/leak testing, commissioning, disinfection and utility-owner operational acceptance.

Free editable proposed work-package baseline. Source material is topic guidance, not an adopted project standard or acceptance requirement. Complete against contract, drawings, specifications, geotechnical documents, approved procedures, adopted standards and assigned roles. All actual measurements, tests, dates, dispositions and signatures remain blank until work is performed.

Project-specific ITP drafting for this package

A package ITP can follow each trench section through clearance, formation, bedding, service placement interface, pre-cover evidence, surround, staged backfill, specified testing and surface reinstatement handover. Pipe-system pressure testing and structural trench-support design remain separate unless explicitly commissioned and documented.

Useful files to provide

Utility route drawings, service clearances and trench section details
Bedding / surround materials and approved installation requirements
Project backfill, compaction and reinstatement criteria by service zone
Pre-cover inspection, utility-owner interface and required survey / test records

Example of an input still needed

For example: “The service alignment is supplied, but the trench section and minimum cover source are missing. Please send the approved typical detail and the required pre-cover inspection record.”

A project-specific trench bedding and backfill ITP service prepares the plan and matching blank site records for this package. The listed inputs help scope the work; if an item is unavailable, it can be recorded as an open project decision rather than guessed.

How the plan and blank records fit together

The Excel, Word and PDF downloads each contain the plan and corresponding blank record forms. For this package, entries such as Section / line ID, Service / trench zone, Test method / report / lot refs. provide examples of location, source / product and observation or traceability fields. They are fields in the downloadable package files, not separate online records; the browser editor edits the plan only.

Define the package before tailoring it

Work zones and boundaries: Identify drawing references, start/end locations, interfaces and exclusions.
Design and ground basis: Identify approved drawings, geotechnical documents, controlled specifications and disposition roles.
Material source and intended use: Identify material designation, source, permitted use and required project approval evidence.
Inspection, lotting and testing basis: Copy the actual project method, acceptance source, lot basis, rate, location and reporting requirement.
Roles and external control: Identify performer/reviewer roles and actual contractual notice, H/W and release provisions.
Survey / closeout evidence: Identify datum, drawing criteria, survey responsibility and handover records.

Inspection sequence and project requirements

This starting plan contains 9 inspection steps. Proposed timing and roles need project confirmation; no contractual hold point or engineering acceptance value is assigned by this template. Actual results and signatures remain blank.

UTB-01 · Trench package, service information and approvals

Work stage: Trench package, service information and approvals
Inspection / test: Confirm pipe/service identity, route, trench zones, interfaces, bedding/surround/backfill requirements and project test/handover basis.
Method: Review approved service drawings, specifications, utility owner information, installation instructions and project responsibilities; identify commissioning/testing as an interface only.
Acceptance condition: Current controlled documents define the included trench extent, service system and zone-specific requirements; unknown technical criteria and interfaces are logged for project decision. [Fill: Approved civil / services drawings and revisions] [Fill: Project earthworks specification and adopted standards] [Fill: Service and work-package interfaces] [Fill: Performing, reviewing and contractual release roles]
Timing / coverage: Before excavation and when route, service system or controlled documents change.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Utility trench work-front register
Project document reference: Identify the exact project document, revision and clause/drawing item for: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Performing, reviewing and contractual release roles; Project records and handover requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Performing, reviewing and contractual release roles; Project records and handover requirements
Blank record fields: Service / system / line ID; Route / drawing locator; Spec / drawing revisions; Open interface decision ref.

UTB-02 · Service locating, excavation permit and work-front clearance

Work stage: Service locating, excavation permit and work-front clearance
Inspection / test: Verify applicable utility searches, locating marks, permits and protection arrangements at the planned trench section.
Method: Review current plans and permit/clearance records; check field marks and service owner instructions are identifiable at the trench location.
Acceptance condition: Clearance and permits required by the project are current for this section; discrepancies or unknown services are referred before affected excavation proceeds. [Fill: Service clearance and permit process] [Fill: Approved civil / services drawings and revisions]
Timing / coverage: Before each trench section is opened and after route/condition changes.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Trench clearance and permit record
Project document reference: Identify the exact project document, revision and clause/drawing item for: Service clearance and permit process; Approved civil / services drawings and revisions; Performing, reviewing and contractual release roles; Project records and handover requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Service clearance and permit process; Approved civil / services drawings and revisions; Performing, reviewing and contractual release roles; Project records and handover requirements
Blank record fields: Section / chainage; Service owner / located service; Permit / clearance ref.; Field mark / photo ref.

UTB-03 · Trench excavation, bottom condition and water

Work stage: Trench excavation, bottom condition and water
Inspection / test: Inspect the excavated section and bedding formation against the documented profile and record encountered ground/water.
Method: Compare location, alignment, depth/profile evidence and bottom condition with approved service drawings and specified geotechnical/installation criteria; refer deviations.
Acceptance condition: Dimensions and bottom condition match the project source; water, instability, obstruction or unsuitable founding receives written disposition before bedding or pipe placement. [Fill: Approved civil / services drawings and revisions] [Fill: Geotechnical design basis and disposition roles] [Fill: Project earthworks specification and adopted standards]
Timing / coverage: Each section before bedding; recheck after disturbance, water ingress or changed ground.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Trench excavation and formation record
Project document reference: Identify the exact project document, revision and clause/drawing item for: Approved civil / services drawings and revisions; Geotechnical design basis and disposition roles; Project earthworks specification and adopted standards; Performing, reviewing and contractual release roles; Project records and handover requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Approved civil / services drawings and revisions; Geotechnical design basis and disposition roles; Project earthworks specification and adopted standards; Performing, reviewing and contractual release roles; Project records and handover requirements
Blank record fields: Section / location; Drawing / profile locator; Bottom / water observation; Instruction / reinspection ref.

UTB-04 · Bedding and foundation material approval

Work stage: Bedding and foundation material approval
Inspection / test: Verify bedding material identity and source against the project-specified pipe-zone material requirements.
Method: Review source/delivery documentation and compare material description or required test evidence with the approved material schedule and pipe-system documents.
Acceptance condition: Material is traceable to the project-approved bedding requirement and intended service/zone; unsuitable or unidentified delivery is held for project disposition. [Fill: Material source, classification and use schedule] [Fill: Project earthworks specification and adopted standards] [Fill: Service and work-package interfaces]
Timing / coverage: Before first use of each source/material and for each delivery group as project criteria require.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Bedding material receipt record
Project document reference: Identify the exact project document, revision and clause/drawing item for: Material source, classification and use schedule; Project earthworks specification and adopted standards; Service and work-package interfaces; Project records and handover requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Material source, classification and use schedule; Project earthworks specification and adopted standards; Service and work-package interfaces; Project records and handover requirements; Performing, reviewing and contractual release roles
Blank record fields: Docket / delivery ID; Material description / source; Service / trench zone; Approval / report ref.

UTB-05 · Bedding placement, grade and bearing interface

Work stage: Bedding placement, grade and bearing interface
Inspection / test: Check bedding placement and prepared support/grade before the service component is installed.
Method: Observe preparation, material placement and grade evidence; compare with the identified drawing, specification and manufacturer/project installation detail.
Acceptance condition: Support, grade and contact arrangement meet the specific project and system documents; dimensions or tolerances are entered only from those documents. [Fill: Approved civil / services drawings and revisions] [Fill: Project earthworks specification and adopted standards] [Fill: Service and work-package interfaces]
Timing / coverage: Each trench section before pipe or service installation; recheck any disturbed section.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Bedding pre-installation inspection
Project document reference: Identify the exact project document, revision and clause/drawing item for: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Survey control, geometry and closeout requirements; Performing, reviewing and contractual release roles. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Survey control, geometry and closeout requirements; Performing, reviewing and contractual release roles
Blank record fields: Section / location; Observed grade / method / unit; Drawing / installation detail locator; Support / contact observation

UTB-06 · Installed service position and pre-cover inspection

Work stage: Installed service position and pre-cover inspection
Inspection / test: Record visible service identity, alignment, joints/supports and required pre-cover evidence at the open trench interface.
Method: Inspect against approved service drawings and installation documents; capture required photographs, survey or specialist inspection references before surround conceals the installation.
Acceptance condition: Installed work and required evidence match the cited project/system requirements; defects or missing inspection evidence remain open before concealment. System commissioning and pressure/leak testing are outside this package. [Fill: Approved civil / services drawings and revisions] [Fill: Project earthworks specification and adopted standards] [Fill: Service and work-package interfaces] [Fill: Project records and handover requirements]
Timing / coverage: Each defined section before surround or other concealment.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Open-trench pre-cover record
Project document reference: Identify the exact project document, revision and clause/drawing item for: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Project records and handover requirements; Performing, reviewing and contractual release roles. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Approved civil / services drawings and revisions; Project earthworks specification and adopted standards; Service and work-package interfaces; Project records and handover requirements; Performing, reviewing and contractual release roles
Blank record fields: Line / component ID; Section / location; Inspection / survey / photo ref.; Defect / disposition ref.

UTB-07 · Haunch and surround placement

Work stage: Haunch and surround placement
Inspection / test: Inspect selected surround material, placement and support around the service before general backfill.
Method: Compare zone material/dimensions and placement sequence with the project detail and installation requirements; observe for displacement or damage.
Acceptance condition: Surround material, extent and placement follow the project-defined pipe-zone detail; service remains in required position and any disturbance is corrected and re-inspected. [Fill: Approved civil / services drawings and revisions] [Fill: Material source, classification and use schedule] [Fill: Project earthworks specification and adopted standards] [Fill: Service and work-package interfaces]
Timing / coverage: Each section before advancing above the specified surround zone.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Service surround inspection
Project document reference: Identify the exact project document, revision and clause/drawing item for: Approved civil / services drawings and revisions; Material source, classification and use schedule; Project earthworks specification and adopted standards; Service and work-package interfaces; Survey control, geometry and closeout requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Approved civil / services drawings and revisions; Material source, classification and use schedule; Project earthworks specification and adopted standards; Service and work-package interfaces; Survey control, geometry and closeout requirements; Performing, reviewing and contractual release roles
Blank record fields: Section / line ID; Zone limits / drawing locator; Surround material / delivery ref.; Observed position / survey ref.

UTB-08 · Backfill above pipe zone and reinstatement build-up

Work stage: Backfill above pipe zone and reinstatement build-up
Inspection / test: Check accepted backfill material, staged placement and protection of the installed service through the remaining trench depth.
Method: Trace delivered material to project use requirements; observe the documented placement method and specified verification stages; coordinate interfaces for surface reinstatement.
Acceptance condition: Backfill material and sequence match project drawings/specification; specified verification is completed at the stated project trigger; any damage, settlement or open test is recorded and referred. [Fill: Material source, classification and use schedule] [Fill: Project earthworks specification and adopted standards] [Fill: Project testing, lotting and reporting plan] [Fill: Service and work-package interfaces]
Timing / coverage: Each defined backfill stage before it is covered by the next stage; use project lot/test basis.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Trench backfill stage log
Project document reference: Identify the exact project document, revision and clause/drawing item for: Material source, classification and use schedule; Project earthworks specification and adopted standards; Project testing, lotting and reporting plan; Service and work-package interfaces; Project records and handover requirements. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Material source, classification and use schedule; Project earthworks specification and adopted standards; Project testing, lotting and reporting plan; Service and work-package interfaces; Project records and handover requirements; Performing, reviewing and contractual release roles
Blank record fields: Section / lift or stage; Material / source ID; Specified test / report ref.; Surface reinstatement interface

UTB-09 · Trench testing, defects, survey and handover

Work stage: Trench testing, defects, survey and handover
Inspection / test: Close the trench section by reconciling specified earthworks tests, final location/level evidence, reinstatement and records.
Method: Review test reports and lot coverage against the project plan; verify survey/as-built files, defect/disposition register and handover index for the same section.
Acceptance condition: Specified earthworks/backfill evidence and location records are complete to project requirements; outstanding failures or interfaces have written disposition before closeout. Pipe-system commissioning or operational acceptance is by the separately assigned package. [Fill: Project testing, lotting and reporting plan] [Fill: Survey control, geometry and closeout requirements] [Fill: Project records and handover requirements] [Fill: Performing, reviewing and contractual release roles]
Timing / coverage: At section completion before package handover and before records are closed.
Responsible role: Proposed: assigned earthworks supervisor / quality role performs and records; project-assigned reviewer acts only within documented authority. Confirm project roles: [Fill: Performing, reviewing and contractual release roles].
Control / release arrangement: Proposed internal readiness check. Confirm any contractual Hold/Witness point, notice, evidence and release authority from project documents; none is assigned by this baseline.
Record: Trench section closeout register
Project document reference: Identify the exact project document, revision and clause/drawing item for: Project testing, lotting and reporting plan; Survey control, geometry and closeout requirements; Project records and handover requirements; Performing, reviewing and contractual release roles; Service and work-package interfaces. Include applicable annexures and written dispositions; record a precise missing-input prompt if the project source is unavailable. Topic sources do not establish project adoption.
Project inputs to resolve: Project testing, lotting and reporting plan; Survey control, geometry and closeout requirements; Project records and handover requirements; Performing, reviewing and contractual release roles; Service and work-package interfaces
Blank record fields: Section / line ID; Test method / report / lot refs.; As-built location / level ref.; Defect / disposition / interface ref.; Handover index / recipient ref.

Source notes

Queensland Department of Transport and Main Roads, MRTS04 General Earthworks (March 2025)
Inspected topic example for Queensland road and bridge earthworks only. Supports identification of process topics, documentary controls, materials, geometry, excavation, fill, compaction, backfill and the fact that lot/test rules are specified. Its technical values, tests, frequencies, lot sizes, control points and roles are not defaults; use only if the project contract adopts this edition and applicable annexures.
Inspected official PDF and local searchable extract industry-library/text/tmr-mrts04.txt. Topic locators: 1.1-1.2 scope (printed specification pp. 1-2); 5.2-5.6 procedures, testing/lotting (printed pp. 15-19); 6 geometry (printed pp. 19-20); 8 topsoil (printed pp. 22-24); 9 unsuitable material (printed pp. 25-26); 13 excavation (printed pp. 34-38); 14 Earth Fill (printed pp. 38-47); 15 Compaction (printed pp. 48-53); 19 Backfill (printed pp. 67-74).
Hutchinson Builders, Safety & Quality Planning: 010 Groundworks ITP and Report (EXAMPLE)
Builder example marked EXAMPLE; used only to check broad staging and useful lot/report fields. Many acceptance/frequency/role cells are blank. It does not set universal criteria, regulatory steps or release authority. Original DOCX files are not redistributed.
Official downloads page lists 010 Groundworks ITP and 010 Groundworks Report; both DOCX files downloaded and text-extracted 2026-10-07 from the linked Toolbox files. ITP table rows 3-11 cover bulk set-out, fill source, excavation, fill operations, bottom/surface preparation, compaction/soil-strength records and final inspection; rows 12-25 cover detailed earthworks, trench/pit bottoms, bedding/blinding, backfill, regulatory records and closeout. Matching report table rows 2-4 capture lot/location/open-close/comments/signature; rows 8-32 carry process, specification, acceptance, pass/fail, CAR, initials and date.
Construction Quality Australia, How to create an Inspection and Test Plan
Method structure only: sequence checkable activities and specify method, acceptance source, trigger/frequency, responsibility, control and records. Does not substantiate earthworks technical limits or project requirements.
Official industry guide, sections 1-4, previously inspected and summarized in skills/au-construction-itp/references/template-writing-guide.md.

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Utility Trench Bedding, Surround and Backfill Inspection and Test Plan Template