VSL, a subsidiary of Bouygues Construction specialising in post-tensioning (adding steel cables to concrete), installed the world’s highest skybridge to link the Nation Towers in Abu Dhabi. This extraordinary structure, one of the marvels of local architecture, is suspended 202.5 metres above the ground. The 385-tonne link bridge was hoisted into place in Spring 2011. It was a remarkable technical feat, particularly as the wind was blowing at around 35 kph.