Fort de Bicêtre

The Fort de Bicêtre is a military structure built between 1841 and 1845 during the reign of Louis-Philippe during a time of tension between France and England, in the Paris suburb of Kremlin-Bicêtre.

As a result of shortages of money, manpower and materièl, some of the forts' armament and personnel were drawn from the Navy.

With an area of 25 hectares (62 acres), the fort is pentagonal in shape, enclosed by a wall, ditch and counterscarp.

The magazines, located in the bastions flanking the entrance and on the fort's surface amount to 142 square metres (1,530 sq ft) in area, holding fifty tons of black powder.

The interior of the magazines has two levels, with wooden floors, fastened with wood pegs or bronze nails to avoid inadvertent sparks.

The Fort de Bicêtre features thirty casemates in two groups of fifteen, one located between bastions 2 and 3, and the other between 3 and 4.

In 1851 the Fort de Bicêtre was a prison for plotters in a coup d'état against Napoleon III.

As the Prussians began to withdraw in March, the Paris Commune uprising took place, occupying several southern forts including Bicêtre.

After bloody attacks by French government forces, the communards left the fort during the night of 24–25 May.

From 1946, the fort was transformed into a military radio communications facility manned by the 1st Battalion of the 8th Transmissions Regiment.

In 1983 the Centre de Contrôle des Fréquences (CCF/Nord) moved to Bicêtre from Mont Valérien.

In 1994 CSST2 amalgamated with CSST1 in Suresnes and CSST3 in Toulouse to become the Centre National de Soutien Spécialisé des Transmissions (CNSST).