Construction has begun on a new Hydro One tunnel 85 feet below ground in downtown Toronto which will house new cables to replace old ones that have been around since the 1950s. In addition to Hydro One, the project team includes Burns & McDonnell; RV Anderson; Dillon Consulting; GHD; McNally Construction; and Taihan Cable & Solution. Pictured is the Celtic Tiger Tunnel Boring Machine being lowered into the ground.

$120M Hydro One tunnel construction years in the making

After years of designing and planning, Hydro One’s Celtic Tiger Tunnel Boring Machine (TBM) was recently lowered into the ground, launching construction on a new underground tunnel that is expected to provide reliable electricity supply in downtown Toronto. While construction activity on the $120 million infrastructure renewal project began in 2022, early engineering work began … Continue reading $120M Hydro One tunnel construction years in the making

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