Spans : 55,35 - 5 x 61,5 - 49,2 - 36,9 = 448,95 m
Total tonnage : 2 890 t
Supporting structure : three-chord truss system below each carriageway with one bottom chord and steel tube diagonals being combined with the carriageway slab into a composite section. The Carriageway slab : thickness of 1,06 m near the top chords and the diagonals, of 32 cm at the centre of the slab and of 23 cm at the sides.
Visible bottom chords and diagonals : hot-finished seamless tubes (material S355 J2H Ø 610 mm or Ø 298,5 mm). Top steel chords encased in concrete (material S355 J2G3).
Bottom chord truss joints are cast joints (material GS°20Mn5v). Truss geometry required production of 210 cast joints, eight basic types of joints The Carriageway slab : concrete quality C45/55) pre-stressed longitudinally.

ECCS Awards for steel bridges 2008 Jury's comments: The graceful integration of a composite deck with a tubular truss structure combined with slender vertical supports is achieved through well executed connections which gives a light visual appearance to the viaduct.

Photos: DR