Raymond Barre bridge

Structure with three metallic decks, including a central 150 m bow-string span above the Rhône.

Highly asymmetrical section due to lateral cantilevering between 5 and 9 m in width for soft circulation (pedestrians and bicycles), so that load descents on the support points will be very off-centre.
 
P1 pier: The most complex pier with foundations on 16 tubed piles at 1,600 at the bottom of the Rhône (depth approximately 12 m) - Footing 3.00 m thick - 2 drums 14.00 m x 2.00 m x 9.35 m in height surmounted by a solid portal cap beam (800 m3) into which the deck is embedded by means of 75 mm pre-stress bars (2 x 52 bars).