Niagara tunnel project reaches milestone

TORONTO, Ontario, Canada 1/25/12 (PennWell) -- Construction of the Niagara Tunnel Project has reached a significant milestone, as half of the tunnel is now fully lined with concrete, Ontario Power Generation announces.

When complete, the tunnel will allow waters from the Niagara River to flow 10.2 km to the 2,000-MW Sir Adam Beck hydroelectric facility, increasing its output by about 1.6 billion kWh. The tunnel is as tall as a four-story building and will propel water at a rate of 500 cubic meters per second.

"The Niagara Tunnel Project is an example of how the province is transforming Ontario's electricity system and investing in the clean energy economy," said Canadian Minister of Energy Chris Bently.

Digging of the tunnel itself was finished in May 2011 and was completed using the world's largest hard rock boring machine, according to an OPG release.

The project is expected to be complete in 2013 at a cost of US$1.42 billion.

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