Vinci wins Toronto storm sewer contract

30 September 2021

French company Vinci Construction has announced that, via its microtunnelling subsidiary Bessac (Soletanche Bachy), and in consortium with Canada-based EBC, it has won a contract to build the Fairbank-Silverthorn Storm Trunk Sewer System for the city of Toronto, Canada.

The US$145m contract aims to reduce the impact of heavy rainfall and sewer backups for thousands of homes. The work is expected to take 31 months and will principally involve the construction of a 2.4km-long, TBM-bored, gravity storm trunk sewer system of 4.5m diameter. The machine to bore the tunnel will be designed and manufactured by France-based Bessac.

The contract also includes:

  • Construction of 21 access shafts
  • Microtunnelling of local sections of storm sewers
  • Open-trench construction of a section of storm sewer and
  • Construction of a storm-drain outfall.

This project forms part of the City of Toronto Basement Flooding Protection Programme.