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Highways 15 & 640 Interchange| Phase 4

EBC, in partnership with Demix, was entrusted with the last phase of the 15-640 interchange reconstruction project. Managing the exceptionally complex high traffic hub and coordinating the various parties to Phase 4 and earlier phases of the project was a challenge. The project included:

  • Widening Highway 640 from two lanes to three lanes over a distance of 1.7 km
  • Redevelopment of new ramps of Highways 640 East and West connecting Highway 15 South
  • Reconstruction of overpass bridges over Sanche boulevard and Turgeon Street
  • Reconstruction of Road 344 and Highway 15 overpass bridges
  • Refurbishment of Desjardins and Faubourg boulevards and construction of a bicycle path
  • Paving and refurbishment of Gédéon-Ouimet bridge slab


  • Client Ministère des Transports du Québec (MTQ)
  • Year 2012-2014
  • Value $84,000,000
  • Realisation Mode General Contractor