TBM begins excavation on Montreal Metro Blue Line extension, Canada May 25, 2026 | News, North America News The tunnel boring machine (TBM) for the Montréal Metro Blue Line extension has commenced horizontal excavation along its 4.6-km route toward Anjou. The machine, named Lisette in honour of the first fe... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password