St. Lawrence River – Iroquois Control Dam Navigational Gates Temporarily Closed

Cornwall – Ontario Power Generation (OPG) is advising users of the St. Lawrence River that the navigational gates at the Iroquois control dam have been closed temporarily to reduce downstream flow. As a result, they will not be available for recreational boat passage.

OPG is temporarily closing the gates at the Iroquois control dam to mitigate high water levels downstream. The gates will remain closed until the high flows, due to spring conditions throughout the Ottawa River watershed, which drains into the St. Lawrence, subside. A reminder to the public that the gates allocated for recreational use, when open, must always be navigated with extreme caution.

This notification is in accordance with the operating regulations of the International Lake Ontario – St. Lawrence River Board.

OPG would like to remind all users of the river to take every precaution and obey all signage around dams and generating stations. To learn more about water safety, please visit opg.com/watersafety.