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Lorient Submarine Base (Keroman)

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description Lorient Submarine Base (Keroman) Overview

The Keroman Submarine Base is a massive reinforced concrete bunker complex located in Lorient, France, constructed by Nazi Germany's Organisation Todt during World War II. Built to shelter the German Kriegsmarine's U-boat fleet, the facility featured enormous, bomb-resistant pens that allowed submarines to be transported out of the water using a complex system of trolleys and lifts. Following the war, the French Navy continued to use the base for its own submarines until its closure in the 1990s. Today, the monumental structure is partially repurposed for maritime businesses and open to public tours for those interested in military history.

help Lorient Submarine Base (Keroman) FAQ

Who built the Keroman Submarine Base in Lorient?

The massive reinforced concrete bunker complex was constructed by Nazi Germany's Organisation Todt during World War II. It was built to shelter the German Kriegsmarine's U-boat fleet operating in the Atlantic.

Can you visit the Keroman submarine base today?

Yes, the Keroman submarine base is open to the public and serves as a major tourist attraction in Lorient, France. Visitors can take guided tours to see the enormous, bomb-resistant submarine pens firsthand.

How thick were the concrete roofs at the Lorient submarine base?

The roofs of the submarine pens were constructed with enormous, bomb-resistant thickness to withstand direct Allied bombing raids. In some sections, the reinforced concrete roofs were several meters thick to protect the U-boats below.

What is the Keroman submarine base used for now?

Since its decommissioning as a military installation, the massive bunker complex has been partially repurposed for civilian use. It currently hosts various maritime businesses, a museum, and occasional cultural events.

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