Persistent precipitation this spring has resulted in rising water levels throughout the Great Lakes-St. Lawrence River basin and flood conditions in many tributaries. Water levels in Lake Ontario have risen a total of 0.76 meters (2.50 feet) in two months.
Engagement / Outreach
The International Rainy-Lake of the Woods Watershed Board (IRLWWB) Water Levels Committee (Committee) will host a virtual information session on Friday, May 8, 2026, at 11:30 a.m. CT.
The gate setting of the Compensating Works at the head of the St. Marys Rapids will remain at the typical winter gate setting of one-half gate open (Gates #1 and #7 through #10 open 20 cm (8 in) each). The St. Marys Rapids flow will remain at approximately 84 cubic meters per second or 3,000 cubic…
Removal of the Lake Erie Niagara River ice boom will begin Monday, April 6, 2026.
The gate setting of the Compensating Works at the head of the St. Marys Rapids will remain at the typical winter gate setting of one-half gate open. The Poe Lock is scheduled to reopen on March 25, 2026.
The Board expects the total St. Marys River flow in February to be 1,870 cubic meters per second (66,000 cubic feet per second) as prescribed by Regulation Plan 2012.
Until Friday, April 3rd, submit your comments to the IJC to share your perspectives on Canadian and US governments’ latest Progress Report under the Great Lakes Water Quality Agreement.