The construction company, Costain Limited and one of its subcontractors have been fined after two workers were badly injured when a mobile elevating work platform was struck by a collapsing reinforcement cage during the construction of a bypass.
Manchester Minshull Street Crown Court heard that in the summer of 2015, to support the construction of the A556 bypass in Cheshire, work had started to build a pier designed to eventually support a bridge. This involved erecting a steel cage.
On 3 August, two employees were working on a mobile elevated working platform (MEWP) when it collapsed. The cage crashed into the MEWP, causing it to fall on its side.
The first employee sustained life-changing head injuries and the second a leg fracture. A third worker nearby escaped injury by moving away just in time.
An investigation by HSE found there was no temporary support for the reinforcement cage during the construction of the central pier.
Costain Limited was the principal contractor and Brenbuild Limited – which was also fined at the same hearing – was appointed by Costain to construct seven bridges and an underpass.
Costain Limited and Brenbuild Limited were both aware the cage was visibly leaning and that workers on-site had raised concerns, the court heard.
Neither company recognised the inherent instability of the reinforcement cage or took measures to ensure the work could be carried out safely. Brenbuild Limited failed to stop work to prevent injuries from the risk of collapse and to implement control measures to prevent instability. Costain Limited failed to plan, manage and monitor construction of the central pier.
Brenbuild Limited of Parkway Business Park, Scunthorpe pleaded guilty to breaching sections 2(1) and 3(1) of the Health and Safety at Work Act 1974. The company was fined £80,000 and ordered to pay costs of £21,730.11.
Costain Limited of Vanwall Business Park, Maidenhead, pleaded guilty to breaching sections 2(1) and 3(1) of the Health and Safety at Work Act 1974. The company provides construction and engineering services and is part of Costain Group, which posted a turnover of £1,155.6m in 2019. The firm was fined £1.2million and ordered to pay costs of £21,644.51.
Speaking after the hearing, investigating HSE inspector Deborah Walker said: “This incident could have been easily prevented and the risk of collapse should have been identified by both companies.
“If a suitable safe system of work had been in place, this incident would not have occurred, and the two workers would not have suffered these injuries.”