The Year The Army Stopped Niagara Falls
source: http://io9.com/5485161/the-year-the-army-stopped-niagara-falls/gallery/
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In 1969, the Army Corps of Engineers accomplished an awesome feat: They turned off Niagara Falls. They did it to clean up the area, and check for structural integrity. Here are pictures of this bizarre episode in structural engineering history.
Read more http://io9.com/5485161/the-year-the-army-stopped-niagara-falls/gallery/
Read more http://io9.com/5485161/the-year-the-army-stopped-niagara-falls/gallery/
