U-boat Base Lorient

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The Lorient U-boat base, built by Nazi Germany in occupied France during World War II, served as a major submarine headquarters. Featuring massive reinforced concrete pens resistant to Allied bombing, it housed numerous U-boats. Operated by the Kriegsmarine, it played a crucial role in the Battle of the Atlantic.

U-boat Bunkers Keroman 4a and Keroman 4b (K4a & K4b) – Lorient, France

In 1943 the new German Type XXI U-boat demanded a larger capacity U-boat bunker for service and repairs. …

Posted December 3, 2024 (updated February 19, 2025) by Pascal

U-boat Bunker Keroman 2 (K2) – Lorient, France

Before the first phase of the construction of U-boat bunker Keroman 1 (K1) was completed, the work on …

Posted November 27, 2024 (updated March 9, 2025) by Pascal

U-boat Bunker Keroman 1 (K1) – Lorient, France

Keroman 1 was designed as a dry-dock facility for maintenance and repairs of German U-boats, which used a …

Posted October 27, 2024 (updated March 9, 2025) by Pascal

Dom bunkers “T5” and “T6” at the Bassin Longue Slipway – Keroman Fishing Wharf, Lorient, France

To protect submarines from Allied aerial bombing once on the repair tracks, the construction of two concrete "Dom" …

Posted September 4, 2024 (updated March 9, 2025) by Pascal

U-Boat Bunker Keroman 3 (K3) – Lorient, France

The Keroman III bunker in Lorient was built between 1941 and 1943 and was designed as a wet …

Posted August 28, 2024 (updated March 9, 2025) by Pascal