This sewer main construction checklist supports field inspections across civil works. Verify site safety and management, traffic control, permits, and PPE. Assess confined space requirements and gas detection. Check machinery safety features and service locating. For excavations and trenches over 1.5 m, confirm protections, edge guardrails, ladder access, spoil placement, and dewatering. Inspect pipe laying for alignment to plans, correct pipe class, approved bedding, clean joints, and full insertion to witness marks. Review property branches and excavation extents. Validate backfilling against specifications with NATA-compaction testing. Examine maintenance structures and manholes: location, base layout, connectors, formwork, step irons/ladders, vibration, drops, frames, surrounds, clearances, and concrete infill. Confirm trench and surface restoration, property acceptance, protection from heavy machinery, and full reinstatement. Capture comments, photos, and superintendent sign-off.
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