An atypical structure in the history of fortification, this covered passage had a triple function: to ensure communication between the Trois Têtes fort and the Randouillet fort, to block the Fontchristiane valley and to protect the drinking water tank.
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Built between 1724 and 1734, this atypical work in the history of fortification allows, as its name indicates, the link between two forts: the Trois Têtes fort and the Randouillet fort.
Its name "Y" comes from the military atlas which classified the works with letters of the alphabet. So don't look for any resemblance with the letter Y!
The structure takes the form of a long gallery 200 m long and 4.50 m wide. It is built of masonry and is barrel vaulted, so that soldiers could cross it...
Its name "Y" comes from the military atlas which classified the works with letters of the alphabet. So don't look for any resemblance with the letter Y!
The structure takes the form of a long gallery 200 m long and 4.50 m wide. It is built of masonry and is barrel vaulted, so that soldiers could cross it...
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Services
Guided individual tours
Guided group tours
Location
Location
Contact Communication Y
- www.ville-briancon.fr
