THE TOP 225 INTERNATIONAL CONTRACTORS The Top 225 International Contractors #08 STRABAG SE broke through on its tunnel boring on May 13, 2011, on the 6.3-mile water tunnel under Niagara Falls, Ontario, for Ontario Power Generation. With Traditionally Strong Markets in Decline, Firms Look to ...
with piling work commenced in April of last year. According to the company, it has also started one of the biggest excavation projects in the world, with around one million m3 of earth being moved every week.