Heritage Walks - banks of the Garonne | Page 10 | Tourism in Toulouse
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JM Herrador

Heritage Walks - banks of the Garonne

The itinerary suggested offers the most beautiful views of the city and its river. Eighteen remarkable monuments are detailed here so that visitors can discover and arrive at a better understanding of the identity of Toulouse.


The Saint-Michel lock
2 Impasse du Pont Saint-Michel
31400 Toulouse

The Isle of Saint-Michel is home to the only lock on the Garonne in Toulouse, constructed in the mid 19th Century to aid navigation.

Accessible by the stairs of the Pont du Halage-de-Tounis, it sits alongside the lock-keeper’s house bearing a mark that shows the level that the waters reached during the devastating flood of 1875. Construction of this ensemble resulted in a conflict that pitched the City and the mill owners of the Château Narbonnais, situated at the mouth of the Garonnette and no longer standing, against one another. As their business flourished, these mill owners diverted the flow of the river by constructing barrages and a large causeway that can still be seen. Following this, it was necessary to redevelop the site in order to make navigation possible once again. Having fallen into disuse in the 1930’s, the site was restored in 1996 and the lock is now automatic.

Patrice Nin