Iroquois Control Dam

Iroquois Control Dam

This information has been provided by Ontario Power Generation.

Notice of work for river users

Cornwall – Ontario Power Generation (OPG) is advising users of the St. Lawrence River that the navigational gates at the Iroquois control dam will be closed temporarily as OPG performs regularly scheduled inspection and maintenance activities at the facility. This work activity will not impact water levels and flows.

This temporary gate closure will begin Thursday, December 5 at 7:00 a.m. and will remain in effect until Friday, December 6 at 6:00 p.m. A reminder to the public that the gates allocated for recreational use, when open, must be navigated with extreme caution at all times.

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.

This notification is in accordance with the Directive of the International Lake Ontario - St. Lawrence River Board.

About OPG

As one of North America’s largest, most diverse electricity generators, OPG invests in local economies and employs thousands of people across Ontario and the US. OPG and its family of companies are advancing the development of new low-carbon technologies, refurbishment projects, and electrification initiatives to power the growing demand of a clean economy. Learn more about how the company is delivering these initiatives while prioritizing people, partnerships, and strong communities by reading OPG’s Integrated ESG Annual Report.