ansar.tajudeen
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Makes you wonder just HOW COLD and HOW LONG it was that cold!!
Loq, I was thinking the same.. :?
hmm!?
Unlike the Horseshoe Falls (which has never frozen over), the American Falls are susceptible to freezing because of the small amount of water flow. Normally the American Falls has a peak mean flow of 10,000 cubic feet of water per second. The winter mean water flow is reduced to less than 8,000 cubic feet of water per second. This minimal flow is barely sufficient to cover the rock face of the Falls. During harsh winters, ice frequently built up at eastern end of Goat Island causing an ice dam to reduce the water flow to the northern channel which feeds water to the American Falls. As a result water flow is restricted sufficiently that any remaining waters quickly freeze over.
The installation of the ice boom at the mouth of Lake Erie, the building of the International water control dam (which regulates water flow) and milder winters have all but eliminated the possibility of the American Falls ever completely freezing over in modern times.
The American Falls water flow was reduced to such an extent in 1909, 1936, 1938 and 1949 that it froze over.
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