Le barrage de Tillenay

This dam, which dates from 2011, is equipped with a fish pass and a canoe pass.

The first retractable dam was built at the end of the 19th century to control the course of the river. It was installed on the old spillway, creating the Auxonne-Tillenay reservoir.

Although the new automated dam has taken over, the old needle dam has been preserved: it is the last one of its size in France.