This radius resulted from the large distance between the two cranes and to the barge and was based on the structural strength of the loading platform. As a result of the enormous ground pressure, the load capacity of the ground in this area had to be recalculated to find safe areas for the crawler cranes to be positioned. It was a masterful performance by the two heavyweights to achieve this significant radius with an imposing gross load totalling around 950 tonnes on the hook.
The subsequent journey on the barge to the Dutch coast then took five days. When it arrived at the port of Rotterdam, the large drilling machine was unloaded by a floating crane. In November it will then be shipped over the English Channel to cut a tunnel in Great Britain.
The two massive crawler cranes, with their lattice booms projecting around 60 metres into the sky, naturally attracted a whole host of “crane spotters” to the Rhine. For these fans of crane jobs and heavy haulage of all kinds and their cameras, a visually impressive tandem job like the one in he Rhine port of Kehl was a massive, yet rare highlight. “It’s like Christmas and Easter coming together,” said one young man from the crowd. And his friend continued: “A 11350 and a 11000 – I’ve never had so much power in front of my lens before. Never.”