Underground Drainage Pipework Method Statement

DOCUMENT NUMBER: CV-LIB-MS-CIV-030  
REVISION: 0  
DOCUMENT TYPE: Editable Microsoft Word Template  
LENGTH: 36 Pages  
CONTROLLED APPENDICES: 11

The CONSTRAVIO Underground Drainage Pipework Method Statement, document number CV-LIB-MS-CIV-030, provides a comprehensive controlled methodology for constructing, inspecting, testing and handing over gravity underground drainage systems.

This editable 36-page Method Statement covers the complete construction sequence—from drainage design and material release through pipe receipt, trench formation, dewatering, bedding, pipe laying, jointing, chambers, surround, testing, CCTV inspection, backfilling, as-built surveying and final handover.

It is intended for project managers, construction managers, civil engineers, drainage supervisors, utility coordinators, pipe layers, surveyors, QA/QC teams, HSE personnel, testing specialists and drainage subcontractors.

WHAT’S INCLUDED

• Document control, revision history, approvals and distribution records  
• Project-adaptation protocol and required project inputs  
• Purpose, scope, controlled boundaries and exclusions  
• Drainage-system particulars and reach-testing schedule  
• Roles, responsibilities, competence and release authority  
• Materials, pipes, fittings, seals, structures and controlled products  
• Plant, lifting equipment, dewatering and testing resources  
• Pre-construction submissions, permits and readiness checks  
• Ten mandatory work-release gates  
• Route, profile, invert, gradient and reach-plan verification  
• Pipe receipt, traceability, storage and controlled handling  
• Trench formation, groundwater control, dewatering and bedding  
• Pipe lowering, barrel support, laying, line and level control  
• Socket, spigot, seal, joint and fitting installation  
• Field cuts, chamfers, adaptors and approved repair controls  
• Chambers, manholes, gullies, fittings and penetrations  
• Haunch, surround and initial-backfill requirements  
• Leakage, air or water testing as specified  
• Cleaning, CCTV inspection and deflection verification  
• Defect identification, repair, reconstruction and retesting  
• Final backfill, reinstatement and as-built surveying  
• Connections, live-system interfaces and handover  
• HSE, environmental, quality and change-control requirements

CONTROLLED APPENDICES

• Appendix A – Drainage work-front release checklist  
• Appendix B – Drainage installation and test release card  
• Appendix C – Daily drainage installation inspection  
• Appendix D – Pipe, fittings, structures and joint checklist  
• Appendix E – Pipe laying, jointing and survey log  
• Appendix F – Drainage leakage, air or water test report  
• Appendix G – Cleaning, CCTV and deflection inspection record  
• Appendix H – Chamber, fitting, connection and asset register  
• Appendix I – Defect, repair, retest and change record  
• Appendix J – Drainage Inspection and Test Plan summary  
• Appendix K – Workforce briefing and acknowledgement

IMPORTANT

CV-LIB-MS-CIV-030 is a reusable controlled parent document. It must be tailored to the approved drainage route, profiles, inverts, gradients, pipe system, structures, groundwater conditions, trench-support design, reach-testing requirements and asset-owner criteria.

The document does not authorise live-sewer entry, confined-space work, unapproved live-system connections, pressure-main construction or concealment before the required inspection and test releases.

All project fields, technical criteria, release gates, inspection points, testing requirements and approval responsibilities must be completed and reviewed by competent personnel before construction.

LICENCE

Licensed for use by the purchasing organisation on its own projects. The document may be edited and reproduced internally but may not be resold, redistributed, sublicensed or published as a competing document product.