Louis Joubert Lock

The Louis Joubert Lock is a maritime lock in Saint-Nazaire that allows large vessels to access the port and serves as a dry dock for maintenance work. The structure combines the functions of a passage lock with a dry dock, where ships can be emptied for underwater repairs.

The lock was built between 1929 and 1933 and became the target of Operation Chariot in 1942, when British forces launched a raid to prevent German warships from using it. This attack marked a turning point in the Second World War for the port.

The lock represents the industrial past of Saint-Nazaire and shows how important this port became for French shipbuilding and maritime commerce. Visitors can observe how this facility shaped the economic life of the entire region.

The best time to visit is during high tide or when port activities are happening, so you can watch the lock in operation. It is wise to observe from designated viewing areas and follow the movements of large vessels.

The lock received a new massive gate in 2010 that is one of the most impressive examples of modern lock technology in Europe. This replacement allows the structure to handle contemporary vessel traffic with improved efficiency.

GPS coordinates: 47.27800,-2.19780

Latest update: December 8, 2025 19:53