Pont de Sully-sur-Loire, Steel and concrete bridge in Sully-sur-Loire, France

The Pont de Sully-sur-Loire is a steel and concrete bridge spanning approximately 378 meters across the Loire River with six sections. It carries the D948 departmental road and connects the two municipalities on either bank.

A crossing at Sully-sur-Loire is first documented in 1189, when Archambaud de Sully donated tolls on the bridge to an abbey. The 1363 flood ruined that stone bridge; in 1364 the lord allowed residents to take stones from its fallen arches. A three-span suspension bridge opened in 1836, was rebuilt in 1859 and 1947, and collapsed entirely on 16 January 1985. The present bridge, built by Baudin Chateauneuf, opened on 23 September 1986.

The bridge carries the D948 road between Sully-sur-Loire and Saint-Père-sur-Loire. Its predecessor, a suspension bridge with three spans, opened in 1836 and was rebuilt in 1859 after the 1856 flood destroyed the right-bank abutment and adjacent arch. A Bailey bridge on the railway viaduct piers kept traffic crossing from 15 March 1985.

The bridge is open year-round to both vehicles and pedestrians and undergoes regular maintenance. Visitors should be aware this is an active road with traffic, so walking across requires caution.

In January 1985, severe cold caused the entire deck to collapse into the river. This disaster led to the construction of the current bridge, which was designed to withstand extreme weather conditions.