Typical excavation work risk assessment

INITIAL RISK ASSESSMENT Work in and with excavations  

Provision and Use of Work Equipment Reguiations (PUWER) Controi of Substances Hazardous to Heaith Regulations (COSHH) Confined Spaces Regulations 

HSE Avoidance of dangers from underground sen/ices HSE HSG150 Health and Safety in Construction 

Compliance with British Standards for Earthworks. Sufficient numbers of trained operatives and competent supervision must be available before work starts. Sufficient and suitable plant and materials must be available for trench support before work starts. Suitable monitoring equipment and personnel trained in its use will be required where known exposure to toxic substances or lack of oxygen may occur. Location of existing services must be complete before work starts, also information obtained on ground conditions. A method statement should be prepared before work starts. COSHH assessments to be made as required. 

Excavations will be supported as appropriate. Where flooding risk exists, cofferdams/caissons will be installed with pumps of suitable capacity. Substantial barriers will be erected around excavations. Where poor ventilation is identified the atmosphere will be continually monitored. A permit to work will be used. Stop barriers will be used to prevent vehicle entry. Spoil and materials will be stacked at least 1.5 m from the edge of excavations. Ladders will be provided for safe access/egress. Cable location devices and local authority drawings will be used to trace buried services prior to commencement of work. Suitable signs and barriers will be provided to warn of the work. 

---

Appendix 9.3 - Typical excavation work risk assessment... 

---