Montreal Metro Blue Line East Extension

Province: Quebec

City/Region: Montreal

Image Credit: Société de transport de Montréal (STM)

10

Project Rank

Back to Top100 Infrastructure Projects

Project End: 2031

Project Type: Subway

Industry Sector: Transit

Project Amount: $7.6 billion

Date of Completion: 2031

Funding Source: Public

LEED Status: Certified

Road or Transit Length (KM): 6

Previous Rankings

202510
202411
202311
202219
202119
202017
201915
202610

About The Project

The Blue Line Extension project will add approximately six kilometres of track and five new stations to the current 12-station Blue Line, one of four Metro lines that runs through the Greater Montreal Area. The extension will run along Jean-Talon Street, ending east of Highway 25. The tunnel boring machine (TBM) arrived in October 2025. Custom-built in Germany for the Montreal Metro, the drilling machine, with a diameter of 9.7 meters, will be used to excavate and concrete 4.6 kilometers of tunnel to Anjou. The TBM’s assembly will take place over several months, with commissioning scheduled for spring 2026. .

Project Owner: Société de transport de Montréal (STM)

Project/Construction Manager: Blue Line Project Office (Société de transport de Montréal) Project Partners: Autorité régionale de transport métropolitain (ARTM), ministère des Transports de la Mobilité durable du Québec (MTMD), Société québécoise des infrastructures (SQI) and City of Montréal

P3 Team Members/Project Team: TBM Contract: Mobilité bleu Horizon S.E.N.C. (Pomerleau, EBC and Spie batignolles)

Engineer: AECOM; EXP; Tetra Tech; Stantec; AtkinsRéalis

Other Key Players: WSP (blasting and vibration consulting); EY (business case advisor); Englobe; Brodeur Frenette (risk management expert advisor); CIMA+; Wood (WSP) (geotechnical studies); Egis; Groupe ABS (quality control/geotechnical studies/environmental assessment); Ombrages (lighting consultant); AGAT Labs (quality assessment); Marsh Canada (risk advisor)

Architects: ACDF architecture inc., Bisson Fortin, COEX, Jodoin, Lamarre, Pratte, Lemay Co inc., Les architectes FABG inc., St-Gelais Montminy et associés

Legal: Lavery

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