News Releases

Media Bulletin - Manitoba

January 21, 2022

Province Advises Outflow From Shellmouth Reservoir Will Increase



Manitoba Transportation and Infrastructure’s Hydrologic Forecast Centre advises it will increase flows from the Shellmouth Reservoir as part of the normal operation to drawdown the level of the reservoir in preparation for spring run-off from the upper Assiniboine River.

Outflow from Shellmouth Dam will be increased to 500 cubic feet per second (cfs) from the current 250 cfs on Friday, Jan. 21 and to 800 cfs from 500 cfs on Saturday, Jan. 22.

The final release of 800 cfs will raise Assiniboine River water levels by three to four feet between the Shellmouth Dam and Brandon. The rise in levels will decrease in the east reaches of the river and will be near one foot in Winnipeg.

The province will continue to monitor conditions in the upper Assiniboine River as well as downstream river levels.

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