Construction firms working on the HS2 Old Oak Common station have published a £20m tender for lifting work at the London interchange site.
Balfour Beatty Vinci Systra (BBVS JV), the strategic alliance behind the £1.67bn project, is looking for a supplier to provide a minimum of four heavy lifting tower cranes.
The scope of work outlined includes the supply of all associated labour, equipment, plant, and materials, with the supplier also asked to carry out every stage of delivery, from the design to demobilisation of the cranes.
Lifting work on site will begin in January 2025 and the cranes will be hired for a period of two or three years.
Cranes will be required to carry out lifting activities with maximum reach of 65-70m from the tower crane position. It is estimated that the heaviest lifts, consisting of spliced steel beams will range from 15 tonnes to 24 tonnes (not including lift and tackle weights) at distances of 50m to 65m.
They must also “oversail” the station’s structure, which will be approximately 25m above the cranes’ foundation level.
Due to the rail interfaces, the cranes will be operating with a capacity de-rated by 25 per cent and, therefore, luffing jib cranes are expected to be used. The site delivered is expected to be about half a mile long.
Access into the site for the cranes will also be limited due to them having to cross a 79 tonne weight limit bridge on route to the site’s location.
In March, HS2 minister Andrew Stephenson warned that delays to the construction of Old Oak Common station could hold up the entire megaproject.