List of former bridges in Blois

This rather rudimentary system consisted of various submersible artificial islands aligned diagonally and alternating with flooded passages, known as dike (duits in French).

In the Middle Ages the river was more heavily developed: on the bridge, there were also houses, towers (including a gate-tower on the fortified right bank), a chapel as well as stairs to a submersible dike, on which there were 5 water mills, fisheries and a small port.

[5] Very early on Counts of Blois understood the geostrategic importance of this bridge, hence the presence of a gate-tower at the entrance to the town, thus introducing a toll tax on all new entrants.

On the night during 6 and 7 February 1716, the bridge collapsed under the pressure of a violent ice jam break-up on the river.

[10] After that year, the area was drained, roads were built to connect the former river island to the villages on the left bank, and the bridges fell into disuse.

Built and used over the same period, and starting from the present rue des Métairies, this elevated road gave access to the lower part of St-Gervais.

Today, all that remains of the St Michel bridges are 6 stone pillars in the middle of a pond, located between the levee and the auberge espagnole (local hotel).