Pont de Groslée

Pont de Groslée is a suspension bridge spanning the Rhône River, linking Groslée-Saint-Benoît in the Ain department with Brangues across the river in the Isère. The structure stretches approximately 177 meters (580 feet) over the water, creating a direct crossing where geography would otherwise force detours.

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 represents a significant achievement of French civil engineering from the early 20th century, demonstrating the period's technical capabilities in bridge construction.

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.

Location: Brangues

Location: Groslée-Saint-Benoît

Architects: Ferdinand Arnodin

Length: 177.2 m

GPS coordinates: 45.71220,5.54840

Latest update: December 14, 2025 18:09