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Niagara Tunnel Project Nears Completion

Archived News Release

Niagara Tunnel Project Nears Completion

Ontario Building Clean, Renewable Power, Creating 400 Jobs

The Niagara Tunnel Project has achieved a significant milestone with the completion of the concrete lining for the 10.2 kilometre tunnel. 

When completed in 2013, the tunnel will allow additional water from the Niagara River to flow to the Sir Adam Beck Generating Station at a rate of 500 cubic metres per second. This will supply Ontario with enough clean, renewable electricity to power 160,000 homes.

The Niagara Tunnel Project is the largest renewable energy project of its type under construction anywhere in the world and has brought approximately $1 billion in economic benefits to the region.

Building a clean energy system is part of the McGuinty government's plan to create and support jobs for Ontario families while ensuring we have the electricity we need to power our homes, schools, hospitals and the economy.

Quick Facts

  • The Niagara Tunnel is as high as a four-storey building, and will propel water at a rate of 500 cubic metres per second, fast enough to fill an Olympic-sized swimming pool in a matter of seconds.
  • About 500,000 cubic metres of concrete was used to line the tunnel – enough to build a sidewalk from Windsor to Quebec City.
  • The tunnel liner wall is 60 centimetres thick and made of cast-in-place concrete.
  • Grade two students from Port Weller School in Niagara Fall have presented a time capsule that will be opened in 50 years when the Niagara Tunnel will still be a key part of Ontario’s energy system.
  • Since 2003, more than 100 megawatts of new and refurbished waterpower projects have come online in Ontario – enough power for about 50,000 homes.
  • The McGuinty government’s plan for clean reliable energy means that more hydroelectric power will be added to Ontario’s electricity system in the next eight years than over the previous 40 years.

Background Information

Additional Resources


“Ontario has harnessed Niagara Falls as a source of clean energy for more than 100 years and will continue to do so for 100 more when the tunnel is completed next year.”

Chris Bentley

Minister of Energy

“The completion of the tunnel lining is a major milestone, which was executed safely, on schedule and on budget. The tunnel is a significant made-in-Ontario engineering accomplishment that will serve Ontarians with clean electricity for more than 100 years.”

Chris Young

Vice-President Thermal Hydro Project Execution, Ontario Power Generation

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