News Releases
IJC and board news releases include information about outflows and expected conditions, ice boom installation and removal, new publications, and other up-to-date information about the IJC and its boards.
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Displaying 1 - 50 of 294.
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The seasonal rise of Lake Ontario will depend on future conditions, which are impossible to accurately predict. The Board will continue to monitor conditions and ensure outflows regulated by Plan 2014 are consistent with Orders of Approval.
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained in April at a setting equivalent to approximately one-half gate fully open (Gates #7 through #10 open 20 cm (7.9 in)) and Gate #1 at its typical setting of 20 cm (7.9 in) open. St. Marys Rapids flow...
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained in March at a setting equivalent to approximately one-half gate fully open (Gates #7 through #10 open 20 cm (7.9 in)) and Gate #1 at its typical setting of 20 cm (7.9 in) open. St. Marys Rapids flow...
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained in February at a setting equivalent to approximately one-half gate fully open (Gates #7 through #10 open 20 cm (7.9 in)) and Gate #1 at its typical setting of 20 cm (7.9 in) open. St. Marys Rapids flow...
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained in January at a setting equivalent to approximately one-half gate fully open (Gates #7 through #10 open 20 cm (7.9 in)) and Gate #1 at its typical setting of 20 cm (7.9 in) open. St. Marys Rapids flow...
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The International Lake Ontario-St. Lawrence River Board is providing this notice to summarize the water level conditions as winter approaches. As a reminder, Plan 2014 is a set of rules that govern Lake Ontario outflows through the Moses-Saunders Dam located between Massena, New York and Cornwall...
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be lowered in December to a setting equivalent to approximately one-half gate fully open. After the gate adjustments on Wednesday, December 6, the St. Marys Rapids flow will be approximately 96 m3/s.
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The International Lake Superior Board of Control will host a virtual meeting to give an update on operations on the St. Marys Rapids and Regulation Plan 2012. The meeting will be Tuesday, December 12, from 5:30 pm to 6:30 pm.
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be lowered in November to a setting equivalent to approximately one gate fully open. After the gate adjustments on Monday, November 6 (U.S. gates) and Tuesday, November 7 (Canadian gates), the St. Marys Rapids flow...
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The International Lake Ontario-St. Lawrence River Board is providing this notice to summarize the water level conditions from September 2023 through the remainder of Autumn.
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be lowered in October to approximately four gates fully open. After the gate adjustments on Friday, October 6 (American gates), and Tuesday, October 10 (Canadian gates), the St. Marys Rapids flow will be...
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The International Lake Ontario-St. Lawrence River Board has been using its authority to deviate from Plan 2014 since September 2nd to provide higher and more predictable water levels on Lake St. Lawrence and the upper St. Lawrence River. Dry weather conditions have caused water levels on Lake...
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Anglers and other users of the St. Marys Rapids, please be advised that testing of Gate #5 of the Compensating Works will be conducted on Tuesday, September 19. Gate #5 is located on the Canadian side of the structure, as highlighted in the figure. There will be a temporary increase in St. Marys...
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The International Lake Ontario-St. Lawrence River Board will use its authority to deviate from Plan 2014 from September 2nd through October 9 to provide higher and more predictable water levels on Lake St. Lawrence and the upper St. Lawrence River.
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained at the current setting in September, which is equivalent to approximately five gates fully open. The St. Marys Rapids flow is approximately 773 m3/s. At this flow, some low-lying areas of Whitefish...
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The International Lake Ontario–St. Lawrence River Board and International Niagara Board of Control will host two virtual public meetings, one in English and one in French, to share the most up to date forecast for the Lake Ontario and St. Lawrence River basin and discuss ice boom installation for...
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The gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained at the current setting in August, which is equivalent to approximately five gates fully open. The St. Marys Rapids flow is approximately 784 m3/s. At this flow, some low-lying areas of Whitefish Island...
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On Wednesday, the flow through the St. Marys Rapids will decrease from approximately 1,200 m3/s (42,380 cfs) to 780 m3/s (27,500 cfs). The gate setting will be equivalent to approximately five gates fully open. At this flow, some low-lying areas of Whitefish Island including recreational trails may...
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The St. Marys Rapids flow will remain at approximately 1,200 m3/s for the month of July. Low-lying areas of Whitefish Island including recreational trails are currently flooded and portions of the Island have been closed by Batchewana First Nation. Users are encouraged to use extreme caution.
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Anglers and other users of the St. Marys Rapids, please be advised that the gate setting of the Compensating Works at the head of the St. Marys Rapids will be maintained at the current setting equivalent to approximately eight gates fully open. Low-lying areas of Whitefish Island including...
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The United States Army Corps of Engineers will be performing an inspection on the gates of the Compensating Works at the head of the St. Marys Rapids on Tuesday, May 23, 2023.
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Lake Ontario water levels are approaching the seasonal peak. Outflow into the St. Lawrence River is gradually increasing, as Ottawa River flows gradually decrease.
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A wet weather system has remained over the Lake Ontario-St. Lawrence River basin for several days. The persistent rain and runoff from the system continues to cause water levels in Lake Ontario and the St. Lawrence River to rise.
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Anglers and other users of the St. Marys Rapids, please be advised that the gate setting of the Compensating Works at the head of the St. Marys Rapids will be increased on Monday May 8, 2023, from the current setting equivalent to approximately five gates fully open to a setting equivalent to...
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Heavy rain in recent days across the Lake Ontario-St. Lawrence River basin has led to rapid increases in Ottawa River flows and rising Lake Ontario water levels. Continued wet weather and runoff from the recent rains may result in flooding of vulnerable areas along the Lake Ontario shoreline as well...
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Anglers and other users of the St. Marys Rapids, please be advised that the gates of the Compensating Works at the head of the St. Marys Rapids will be adjusted on Monday April 24, 2023. Gates #6 through #16 will each be raised to a setting of 94 cm (37 in.), which is equivalent to approximately...
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Anglers and other users of the St. Marys Rapids, please be advised that a higher than customary gate setting continues to be maintained to minimize the impacts of ongoing maintenance at Evolugen’s Clergue hydropower facility in Canada.
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Anglers and other users of the St. Marys Rapids, please be advised that a higher than customary gate setting continues to be maintained to minimize the impacts of ongoing maintenance at Evolugen’s Clergue hydropower facility in Canada. The International Lake Superior Board of Control (Board) expects...
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The International Lake Ontario – St. Lawrence River Board (Board) is seeking your input. The Board would like to collect information specifically related to the reduced outflows from Lake Ontario October 7 through October 10, 2022 to support boat haul out and learn more about where people access the...
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Anglers and other users of the St. Marys Rapids, please be advised that a higher than customary gate setting will be maintained this winter to minimize the impacts of ongoing maintenance at Evolugen’s Clergue hydropower facility in Canada. The gates of the Compensating Works at the head of the St...
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Higher than customary gate setting will be maintained this winter to minimize the impacts of ongoing maintenance at the Canadian hydropower facility. The gates of the Compensating Works at the head of the St. Marys Rapids will be maintained at an equivalent of two gates fully open (Gates #6 through...
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Anglers and other users of the St. Marys Rapids, please be advised that a higher than customary gate setting will be maintained this winter to minimize the impacts of ongoing maintenance at the Canadian hydropower facility. The gates of the Compensating Works at the head of the St. Marys Rapids have...
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Note: Due to unforeseen scheduling conflicts, the gate adjustments will occur on November 23 and 28. It was previously reported that the initial gate movements would occur today, on November 21, but these adjustments have been postponed to November 23.
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Anglers and other users of the St. Marys Rapids are advised that the gate setting of the Compensating Works structure at the head of the Rapids will be adjusted on November 21 and again on November 28, 2022.
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Anglers and other users of the St. Marys Rapids, please be advised that the St. Marys Rapids flows and water levels will remain above average in November. The gate setting of the Compensating Works will remain at the current setting equivalent to approximately six gates fully open.
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Anglers and other users of the St. Marys Rapids, please be advised that the St. Marys Rapids flows and water levels will remain above average in October. Some recreational trails and features in these areas will likely be flooded, and users are encouraged to use extreme caution.
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The International Lake Ontario-St. Lawrence River Board will temporarily reduce outflows from Lake Ontario at the Moses Saunders Dam from noon on Friday, October 7th through noon on Monday, October 10th to reach a target water level of about 73.10 meters (239.83 ft.) on Lake St. Lawrence at Long...
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Due to Lake Ontario water levels decreasing and falling below the Criterion H14 threshold this week, the International Lake Ontario – St. Lawrence River Board now has the authority to implement deviations from plan-prescribed flows beginning September 24.
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The International Lake Ontario-St. Lawrence River Board plans to temporarily reduce outflows from Lake Ontario to increase water levels on Lake St. Lawrence the second weekend of October. These efforts will provide marinas and shoreline dock owners an opportunity at the end of the season to remove...
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As of Wednesday, September 7, the St. Marys Rapids flow is expected to be approximately 931 cubic metres per second (m3/s) (32.9 thousand cubic feet per second (tcfs)). As a result, some recreational trails and features in these areas will likely be flooded, and users are encouraged to use extreme...
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The three Great Lakes Boards will host joint webinars in English and French on August 30 and 31, respectively from 5:30 to 6:30 pm EDT. Information shared will include current and forecast conditions within the Great Lakes basin.
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The three Great Lakes Boards will host joint webinars in English and French on August 30 and 31, respectively from 5:30 to 6:30 pm EDT. Information shared will include current and forecast conditions within the Great Lakes basin.
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As of Friday, August 5, the St. Marys Rapids flow is expected to be approximately 923 cubic meters per second (m3/s) (32.6 thousand cubic feet per second (tcfs)). At these flows, some flooding of low-lying areas including recreation trails on Whitefish Island is expected, and everyone is encouraged...
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Anglers and other users of the St. Marys Rapids, please be advised that the St. Marys Rapids flows and water levels will increase in July. As of Wednesday July 6, the St. Marys Rapids flow is expected to be approximately 786 cubic meters per second (m 3 /s) (27.8 thousand cubic feet per second (tcfs...
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Anglers and other users of the St. Marys Rapids, please be advised of the increased flows and water levels that will be experienced in the Rapids in June. After the Compensating Works gate movements scheduled for Monday June 6, the St. Marys Rapids flow is expected to be approximately 720 cubic...
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Anglers and other users of the St. Marys Rapids are advised that on Wednesday morning, May 11, 2022, Gates #9 through #12 will be raised from their current position to a setting of 33 cm (13 in) open for the remainder of the month. Gates #7 and #8 will remain at their current setting of 20 cm (8 in)...
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Outflows from Lake Superior and into Lake Michigan-Huron continue to be set in consideration of water levels upstream and downstream. The Board expects the total outflow to be 1,910 m3/s (67 tcfs) in May, which is as prescribed by Lake Superior Regulation Plan 2012. The gate setting at the...
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The International Lake Ontario – St. Lawrence River Board will host two virtual public meetings, one in English and one in French, to review winter and early spring conditions, and share the most up to date forecast for the Lake Ontario and St. Lawrence River basin. These meetings are essential to...
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Lake Superior water levels remain below the seasonal long-term average while Lake Michigan-Huron water levels remain above the seasonal long-term average. Lake Superior outflows continue to be set in consideration of water levels upstream and downstream.
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Lake Superior and Lake Michigan-Huron water levels are near their seasonal low point and depending on weather and water supply conditions could begin their seasonal spring rise over the coming weeks. The gate setting at the Compensating Works will be maintained at the setting equivalent to one-half...
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