‘Total absence’ of control measures in trench collapse case
- Date: Monday 15th May 2017
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A worker had to be dug out of a trench that collapsed onto him, suffering a broken shoulder and collarbone as well as punctures to both lungs and fractures to all but two of his ribs.
Fife-based construction company Wallace Roofing and Building Limited has been fined following the incident, which happened in September 2011.
Emergency services helped the rescue operation at a house renovation in Falkland.
A trench was being dug with an excavator to help connect the drainage system of the old property with a new extension. When the workers came across a boulder preventing them from further digging, the excavator was used to try and move the rock. The injured man, who was in the trench laying the new piping, was trying to help guide the excavator. During this operation one of the trench walls, nine feet deep, subsided, burying the worker under the dislodged earth.
Workers immediately started digging the soil away from the man’s head to allow him to breathe. He remained partially buried in the trench until the emergency services arrived and dug him free. He remained in hospital for almost three weeks.
The HSE found that the trench had not been supported or ‘stepped back’, to control the risk of the trench collapsing. Inspectors also found that nobody had formal health and safety training for managing a construction site and that work involving the excavated trench had not been risk assessed. As a result, workers were given instructions through verbal briefings rather than detailed, mapped out planning.
Wallace Roofing and Building Limited pleaded guilty to breaching Sections 2(1) and 33(1)(a) of the Health and Safety at Work etc. Act 1974 and was fined £14,000.
Commenting, HSE Inspector Ritchie McCrae said: “The risks associated with collapsing excavation walls are well known, as are the necessary control measures which could easily have been employed. On this occasion, the company failed to identify the risk and consequently there was a total absence of any control measure which would have prevented this incident from occurring. The injured worker sustained serious, permanent injury and is extremely lucky to still be alive.”