The Beatus-Rhenanus bridge, the first French cross-border structure dedicated to eco-friendly transport, crosses the natural border formed by the Rhine and extends the Strasbourg mobility network to the city of Kehl, in Germany. At 290 metres long and 16 metres wide, this double bow-string arch bridge with double arches accommodates two tramway tracks as well as pedestrian and cycle routes. It crosses a 240-metre river gap with a clearance of 7.5 metres and rests on a single pier in the middle of the river with two supports on each bank. The complex framework of the bridge, made entirely of steel, was transported by barge in several sections from the manufacturing plant and then stored on the river bank, thus reducing the impact of the construction site on the environment. The installation of the two main decks required a great deal of technical expertise: levelling the deck on the river bank; loading the barges from the river bank by launching them onto the barges, placing them on the piers and abutments by moving the barges, and finally, adjusting them to their final position.