The challenge: We first performed a feasibility study, looking at options for replacing the transformer. The radius of the lift dictated just two potential options- a helicopter lift, or a large crane sited on Victoria Street and involving a road closure with tight timelines.
With the mobile crane option preferred, we designed a full diversion route for buses and traffic to Westminster City Council’s specifications. This required extensive liaison with Westminster to agree the best solution.
The job required complete closure of Victoria Street, but with only two possible dates and a very short window of time due to major works ongoing.
The transformer had to be removed from its enclosure at roof level and located to a lift point where part of the roof was removed to enable the transformer to be safely removed and replaced.
As an additional complication, the crane lift was over retail outlets that were still operational, so with corporation from the retailers the shops were temporarily emptied of the public, and the footpath closed for each lift to be undertaken safely.
Equipment used
500te crane on luffer.
Our expertise
• Specialist heavy cranes contract lift manager
• 500te crane operators
• Lift supervisor
• Traffic management design and implementation
• Negotiation with Westminster City Council and local retailers
• Public footpath management
Result
All works went smoothly, and we were highly praised by the landlord of the office block (Land Securities), as well as the retailers, who were happy that we minimised impact on trade by enabling minimal closures.
