Method statement for excavation and trench work

An excavation method statement should record dimensions, soil and groundwater information, nearby structures and services, support or battering design, access and inspection arrangements. Collapse, buried utilities, falls, flooding, hazardous atmospheres and people being struck by plant are principal hazards. The Construction (Design and Management) Regulations 2015 require excavations to be supported or sloped so far as reasonably practicable and inspected by a competent person at required times. Service plans alone are not proof of location: scan, mark and use safe digging practices before breaking ground. Keep spoil, materials and plant back from the edge by a distance justified for the ground, and stop immediately if conditions, services or support differ from the plan.

In short

A method statement sets out how a task will be carried out safely, step by step: preparation, set-up, the work itself and completion, with the plant, permits, competence and supervision needed. It puts the controls identified in the risk assessment into a safe system of work.

What it must include

  • ✓Task description, location and duration
  • ✓Step-by-step sequence of works
  • ✓Plant, equipment and materials
  • ✓Permits and isolations required
  • ✓Competence, training and supervision
  • ✓PPE and emergency arrangements
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1

The job

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Tasks on this job

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2

Your details

3

The work

4

Emergency arrangements

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Questions

When does an excavation need support?

There is no universal safe depth; a competent assessment of soil, loading, water and geometry determines support, battering or other protection.

Who inspects an excavation?

A competent person must inspect at the legally required stages and after events such as collapse, damage or severe weather that could affect safety.

Are utility drawings sufficient before digging?

No. Use current plans alongside locating equipment, surface clues, marking and safe excavation techniques.

Sources

Page updated 2026-10-04.

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