Drainage Installation Risk Assessment & Method Statement

Drainage work involves trenches, confined spaces, and contamination.

Deep trenches and manholes present collapse and confined space risks.

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Key Hazards

⚠️Trench collapse
⚠️Confined spaces
⚠️Contamination
⚠️Water ingress
⚠️Gas build-up

Control Measures

Trench support
Confined space procedures
RPE
Dewatering
Gas monitoring

PPE Requirements

  • 🛡️Waterproof boots
  • 🛡️Hard hat
  • 🛡️High-vis
  • 🛡️Gloves
  • 🛡️RPE

Legal Requirements

  • 📋Confined Spaces Regulations 1997

Step-by-Step Method

Excavate trench
Install support
Lay pipes
Manhole installation
Backfill

Emergency Procedures

Collapse: Call 999
Confined space: Use rescue procedures