Rogny Locks

Rogny locks, a project of King Henry IV and Sully as early as 1597, were intended to allow the waters of the Briare canal to drop 24m/78ft from the Trézée Valley to the Loing Valley. The locks were part of an even greater project designed to link the Mediterranean to the Atlantic and the Channel. 12,000 men worked on this feat of engineering under architect Hugues Cosnier. Opened in 1642, it was abandoned in 1887.

Useful information


D 90, 89220 Rogny-les-Sept-Écluses

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