In 1969, the US Army Corps of Engineers dumped 27,000 tons of rock to dam the Niagara River and stop the American Falls. They were assessing a growing pile of boulders at the bottom out of concern the ...
Correspondence, bridge construction and condition reports, financial records, and other materials created by or concerning the Niagara Falls International Bridge Company and the Niagara Falls ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results