Iroquios Dam closed until further notice

OPG Handout
Iroquios Dam closed until further notice

CORNWALL, Ontario – Ontario Power Generation (OPG) is advising users of the St. Lawrence River that the gates at Iroquois Dam will be closed today and will remain closed until further notice.

Boaters are advised that they will need to use the Iroquois Lock for passage.

The gates at Iroquois Dam are being lowered to control increasing water levels on Lake St. Lawrence upstream of Cornwall. This notification is in accordance with the operating regulations of the International St. Lawrence River Board of Control.

OPG would like to remind all users of the river to take every precaution around dams and generating stations. For more information please visit

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