Navy protective bunker

In late 1942 the German navy decided that they would build protective bunkers at their facilities along the coast. They would be built by naval stations, schools and yards.

The bunkers was called Bautype T750. Where "T" stands for "Truppenmannschaftsbunker der Kriegsmarine" and 750 refers to the number of people who could be in it.

Bunker measured 21 x 21 meters and was 11 feet tall. The ceiling was to start with 275 cm. thick, but this was quickly increased to 375 cm. The bunker was equipped with two input with an airtight space (gassluse) to prevent smoke from entering and oxygen to escape. Entrances were protected from blast and bomb fragments of a sheltered wall.

By the end of 1943 there were built 24 bunkers in the following cities: Hamburg (1), Emden (1), Wilhelmshaven (4), Bremen (1), Bremerhaven (3) Flensburg (3), Gdansk (2) Gotenhafen ( 2) Pillau (1) Kaliningrad (1) Swinoujscie (a) and Kiel (4).

The need for protection was that with the growing Allied air attacks has increased and we chose to build multiple variants could provide protection to more people.

Initially, they constructed an additional floor on the T750 which was given four floors and room for 1,100 people. This type was called the T1100 and was built in Bremerhaven (1), Wilhelmshaven (1) and Kiel (1).

In Wilhelmshaven was originally planned to build two T-750 bunkers more, but these were combined into one with

  accommodate 1,500 persons, this variation was the type designation T1500.

Towards the end of the war chose several places to create local variants of the T750, often to increase space and thus the number of persons who could seek protection from air attack. These bunkers were built in Emden (1), Bremerhaven (1), Bremen (1) Hamburg (2), Rostock (1) and Flensburg (1).

Here is the entrance on one side of a T750 today. During the war there was no door installed and the pressure from the bombs could thus pass through the corridor and not hit the doors into the bunker.