There are plenty of urban myths abound surrounding a so called fact that Niagara Falls has frozen over at some point or another. The urban legends say that Niagara Falls froze over completely in the winters of 1911, 1912 or 1932. But Niagara falls have never frozen completely over in recorded history. What can occur is an ice bridge. An ice bridge is where the ice will form completely across the surface of the river, but beneath the ice the water will continue to flow. Niagara Falls did come close to freezing completely over on March 29 1848. That winter saw an ice jam in the upper river that stopped the flow for several hours. While the falls didn’t freeze over the flow of water was stopped to a point where people could walk out onto the ice bridge to collect artefacts from the river bed. On February 4, 1912, the ice bridge broke up leading to the deaths of 3 tourists.