"Excavation of second tunnel under Highways 401 and 409 in Ontario complete"

"The twin tunnels are part of the multi-project GO Expansion and they will help deliver all-day, two-way rail service along the..." (Wanek-Libman, 2021)

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References:

Wanek-Libman, Mischa. (2021, February 12). Excavation of second tunnel under Highways 401 and 409 in Ontario complete. Retrieved from Mass Transit: https://www.masstransitmag.com/rail/infrastructure/article/21210046/excavation-of-second-tunnel-under-highways-401-and-409-in-ontario-complete