Niagara Falls Frozen Over
April 7th 2008 12:25
The flow of water over Niagara Falls was stopped completely over both falls on March 29th 1848 due to an ice jam in the upper river for 30 - 40 hours. The Falls did not actually freeze over, but the flow was stopped to the point where people where able to walk the dry riverbed and find muskets, arrowheads and tomahawks from the War of 1812. This extraordinary event will most likely never happen again.
There have been other times when the flow over Niagara Falls has slowed. Unlike the Horseshoe Falls, the American Falls are more susceptible to freezing because of the small amount of water flow. One time this occurred was in 1911. Pictures from this event are shown here.
In 1969, the Niagara River was entirely diverted from the American Falls for several months through construction of a temporary rock and earth dam. This allowed remedial work to be done to the edge of the Falls which allowed a more even water flow and to slow the rate of erosion.
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