Safety Statement for a Groundworks and Drainage Contractor: Key Hazards and Controls

Groundworks and drainage contractors face a distinct set of hazards including excavation collapse, buried services, flooding, and plant and vehicle...

The Legal Requirement

The Safety, Health and Welfare at Work Act 2005 requires every employer with three or more employees to prepare a written Safety Statement based on a risk assessment of the hazards in the workplace. For a groundworks and drainage contractor, the Safety Statement must address the specific hazards of excavation work, drainage installation, and the operation of plant and machinery on construction sites.

A generic construction safety statement that does not address these specific hazards is not suitable and sufficient under Irish law. The Safety Statement must reflect the actual work carried out by the company and must be reviewed whenever there is a significant change in the work activities.

Key Hazards for Groundworks and Drainage Contractors

Excavation Collapse

Excavation collapse is the most serious hazard in groundworks. The collapse of an unsupported excavation can bury workers in seconds, causing fatal crush injuries or asphyxiation. The risk of collapse depends on the depth of the excavation, the type of soil, the groundwater conditions, and the proximity of surcharge loads such as plant, vehicles, and spoil heaps.

The Safety Statement must address the risk of excavation collapse and the controls in place. For excavations deeper than 1.25 metres, the Construction Regulations 2013 require that the excavation is either battered back to a safe angle or supported by shoring, trench boxes, or other means. The Safety Statement must specify the criteria for deciding which method is appropriate and who is responsible for making that decision.

Buried Services

Striking buried services during excavation is a common cause of serious injury and death on Irish construction sites. Buried services include electricity cables, gas pipes, water mains, telecommunications cables, and sewers. Striking a live electricity cable can cause electrocution. Striking a gas pipe can cause an explosion or fire.

The Safety Statement must address the risk of striking buried services and the controls in place. These should include obtaining service drawings from utility companies before excavation begins, using cable and pipe locating equipment to identify the position of services, hand digging in the vicinity of identified services, and maintaining a safe working distance from live services.

Flooding and Groundwater

Excavations can flood rapidly in heavy rain or where groundwater levels are high. Workers in a flooded excavation face the risk of drowning. The Safety Statement must address the risk of flooding and the controls in place, including the monitoring of weather forecasts, the provision of pumping equipment, and the arrangements for evacuating workers from excavations in the event of flooding.

Plant and Vehicle Interactions

Groundworks sites involve the operation of large plant and vehicles, including excavators, dumpers, and articulated trucks. The interaction between plant, vehicles, and workers on foot is a major cause of serious injury and death on construction sites. The Safety Statement must address the risk of plant and vehicle interactions and the controls in place, including the segregation of plant and pedestrian routes, the use of banksmen, and the speed limits on site.

Manual Handling

Groundworks and drainage work involves significant manual handling, including the handling of pipes, manholes, and other drainage components. The Safety Statement must address the risk of manual handling injuries and the controls in place, including the use of mechanical handling aids and the provision of manual handling training.

What the Safety Statement Must Include

A Safety Statement for a groundworks and drainage contractor should include company details and scope, management structure and responsibilities, written risk assessments for each significant hazard, safe systems of work for high-risk activities including excavation work and the management of buried services, competency requirements for plant operators and other key roles, inspection and maintenance arrangements for plant and equipment, emergency procedures including the arrangements for rescuing a worker from a collapsed excavation, and review arrangements.

Conclusion

A Safety Statement for a groundworks and drainage contractor must be specific to the hazards of the trade. Excavation collapse, buried services, flooding, and plant and vehicle interactions are the key risk areas, and the Safety Statement must address each of them in a way that reflects the actual work carried out by the company.