Tunnels &
Microtunnels

Achievements

Région Parisienne - SIAAP - Collecteur d'eaux usées VL9 - Lot n° 1
Paris area – SIAAP – Waste water tunnel VL9 – Pkg n° 1
 Région parisienne - CPCU - Galerie technique pour conduite de chaleur
Paris area – CPCU – Gallery for urban heating network
HADERA – Desalination plant outfall
 Sables d'Olonne - Emissaire de rejet marin des eaux d'épuration
Sables d’Olonne – Sea outfall
 Bogota - Tunnel d'assainissement de l'IFT (Interceptor Fucha Tunjuelo)
Bogota – IFT waste water tunnel (Interceptor Fucha Tunjuelo)
Vancouver – Annacis WWTP river outfall
 Rouen - RTE - Galerie technique de liaison électrique 910kV Bois-Guillaume
Rouen – RTE – Electrical cables tunnel
San Francisco – Sewage tunnel – SVCW project
 Bata - Galerie d'approvisionnement en eau potable et collecteur d'assainissement
Bata – Waste water microtunnel
 Grand Lyon - Collecteur d'assainissement du Carré de Soie
Grand Lyon – Waste water tunnel

About Us

Bessac is a company specialized in the construction of tunnels and microtunnels, and has carried out more than 40 years of underground works, in various applications.

Bessac offers:

 

equipes reactives
A group of highly mobile and reactive teams that are uniquely specialized
plus 40 tunneliers
A fleet of more than 40 TBMs and MicroTBMs
innovation
A high capacity for innovation
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Expertise/Activities

Tunnel contracting

BESSAC has been building tunnels and microtunnels for more than 40 years. With a wealth of experience, we have realized projects on every continent. Our international activity represents a majority of our business.

 

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Industrial division

  • Strengthened by more than 40 years of experience, the Industrial Division of Bessac has fully mastered the entire production chain, as well as usage of TBMs and their associated equipment.
  • With a full design team, the Industry Division of Bessac boasts highly qualified teams, internationally recognized in the field of underground works.
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