It controls ice flow into the river, protecting shoreline
Preparations are underway to install the Lake Erie-Niagara River ice boom.
This has happened every winter since 1964, in a joint Canadian-American effort to reduce the amount of ice entering the Niagara River.
It's to protect shorelines and control water flow for electric hydro stations.
The American government tells us it's put in December 16th, or when Lake Erie water temperature at Buffalo reaches 4 Celsius, whichever comes first. Current temperature is 6.
The boom is put in at the entrance of the Niagara River at Lake Erie by New York State, which operates and removes it.
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