Pont de Groslée, Suspension bridge in Groslée-Saint-Benoît, France

Pont de Groslée is a suspension bridge over the Rhône linking Groslée-Saint-Benoît in Ain with Brangues in Isère. Its main span measures 177.21 metres. On the left bank a pale masonry tower with two legs, a segmental arch and dark caps carries the main cables, which descend toward the opposite side above a deck edged by an X-braced lattice parapet.

Engineer Ferdinand Arnodin designed the bridge, which opened in 1912 as a feat of early 20th century engineering. German forces damaged it during World War II in 1940, but it was reconstructed and continues to serve today.

The bridge is named after Groslée, the village on the Ain bank, and links it to Brangues in Isère. Its designer, Ferdinand Arnodin, was known for suspension bridges, and the 1912 structure keeps his signature form: masonry towers carrying cables over a 177.21-metre main span. Walkers and cyclists still cross it today.

The bridge has weight restrictions for vehicles over 3.5 tons (7,700 lbs) since March 2023, requiring heavier traffic to use alternate routes. Pedestrians and cyclists can cross without restriction and enjoy open views of the Rhône as they walk or ride.

The bridge underwent major renovation in 1977, when engineers installed aluminum alloys and lightweight concrete in the deck to increase load capacity. These modern materials allowed the older structure to serve contemporary traffic safely and reliably.