Creation of a motorway engineering structure crossing the Saône river on the future A 406 motorway (southern by-pass of Mâcon, as part of the RCEA).
Double beam mixed material structure with 7 spans, a total length of 450 metres, and 4 spans with the maximum length of 72.20 metres. Deck supporting 2 a dual carriageway for a total width of 21.74 metres.
River piers required to withstand impact of ships.
Designs drawn up in accordance with EUROCODES regulations.