On site the first of these are currently being lifted into position by a 100t barge-mounted links of london charms LTR1100 which will remain on site for the rest of the project. The five Kobelcos were themselves lifted into position onto the bridge track level by a 135t Kobelco operating with a Links of London Bunny Pink Charm boom on the track viaduct to the south of the site. The same crane also lifted in two smaller 25t Hitachi mobiles with 21m booms which are used for general site duties, lifting up toLinks of London Butterfly Charm at 4.5m. All these cranes are on hire from Balfour Beatty Crane Hire, the obvious choice. Critical for most of the crane operations is continuous interaction with the Port of London Links of London C Charm, which only allows lifts from the water if bridge spans are closed to river traffic. During the summer tourist boat season especially this can mean a need for close liaison to obtain permissions. The cranes also have to be aware of the live railway alongside, which limits their daytime slews. At night however, when services are stopped between 10pm and 5am, they are able to traverse a full 360 degrees. Weekend possessions also allow this. For the building work at either end of the project, there are luffing jib tower cranes, two on the north side and another south.
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