Fisher Street Shaft Completed Ahead Od Schedule

Published on : Thursday, December 12, 2013

108987_bfk-c300-410-fisher-street-october-2013ber-2013-300x199Crossrail has completed construction of an emergency access shaft in Holborn almost nine months ahead of schedule.

Crossrail’s western tunnels contractor BAM, Ferrovial, Kier (BFK) and their subcontractor Barhale, has been excavating and lining a 15m diameter emergency access shaft in Holborn; known as the Fisher Street shaft.

The shaft will be used to support tunnelling works to build a large crossover tunnel below Red Lion Square at Holborn, which will allow trains to transfer from one running tunnel to another.

It was completed nine months ahead of the August 2014 scheduled end date due to re-sequencing the works that allowed for the early completion of permanent waterproofing and concrete lining of the shaft.

In total 7,000m3 of material was excavated as the shaft was dug and lined.

Crossrail worked with UK Power Networks to relocate electricity substation equipment, a requirement before tunnel boring machines Phyllis and Ada could pass under Holborn on their journey between Royal Oak and Farringdon. The partnership saw UK Power Networks perform a difficult project in a tight and congested corner of London as they relocated their switchgear equipment.

Roger Mears, Crossrail Construction Manager, said: “These works are key to Crossrail’s success in the Holborn area, and the completion of the excavation and structural lining of the Fisher Street shaft is another milestone in our western tunnels project.”

Doug Neilson, Project Manager, UK Power Networks, said: “We understand the importance of the work being undertaken by Crossrail and are pleased that our teams were able to complete this work on time.”

Last month Camden Council approved Crossrail plans to develop 30,000 square feet of residential space above the shaft after the completion of Crossrail’s works. The HOK-designed, eight-storey development comprises 22 one, two and three bedroom apartments. The shaft itself will remain in place providing emergency access and ventilation to the Crossrail tunnels.

Source:- Cross Rail

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