Share: Title:How underground transit tunnels are built in the GTHA Duration: 3:16 Plays: 119K views Published: 7 months ago Download MP3 Download MP4 Simillar Videos ▶️ 2:33 New Concerns Over Metrolinx Rail Project 119K views • 1 month ago ▶️ 1:09 Demolishing The Progress Ave. Bridge 119K views • 10 days ago ▶️ 3:45 Metrolinx Ceo Still Won't Provide Opening Date For Eglinton Crosstown 119K views • 3 weeks ago ▶️ 1:06 Traffic Signals Vs. Transit Signals 119K views • 4 weeks ago ▶️ 2:25 Toronto Homeowners Stunned By Metrolinx Plan To "acquire" Their Houses For Ontario Line 119K views • 1 month ago