May 17, 2011 – The world’s largest rock tunnel boring machine, known as
“Big Becky,” was scheduled to make a breakthrough deep below Niagara
Falls May 13, four years late and $500 million over budget.
May 17, 2011 – The world’s largest rock tunnel boring machine, known as “Big Becky,” was scheduled to make a breakthrough deep below Niagara Falls May 13, four years late and $500 million over budget. | READ MORE
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