Niagara Tunnel Boring Machine Removal (Big Becky)

Niagara Falls Tunnel Arch Form

The largest hard-rock Tunnel Boring Machine (TBM) in the world, ‘Big Becky,’ completed drilling a 14.4m (47.4ft) diameter tunnel 10.2 kilometers long under the city of Niagara Falls. The Niagara Tunnel will provide the electrical need of 160,000 homes by adding 1600 gigawatt-hours of power per year to the Sir Adam Beck Generating Station. Western… Read more »