The Assiniboine River is clear of ice below the Shellmouth Dam, according to a provincial flood report released yesterday.
There is an 80 per cent ice cover on the river at Millwood, ice is breaking up at St. Lazare and open water has been reported from the Sioux Valley Dakota Nation to Brandon.
The potential exists for ice jams to occur from Holland to the Portage Reservoir, and a high water advisory remains in effect for this area. Ice jams can cause rapid rises in water level with little or no warning.
Water levels at Grand Valley are above the riverbank and flooding low-lying agricultural land. Water levels are expected to continue to rise moderately downstream as the crest moves through.
The Portage Diversion is being operated for management of ice on the lower Assiniboine River “as per established protocols.”
The Portage Diversion was operated briefly to divert more water because of persistent ice cover in Winnipeg.
As ice is still in place on the Assiniboine River from Portage to Headingley, the diversion will continue to limit flows on the river to help reduce the risk of ice jams on the Assiniboine River.
» Brandon Sun
Republished from the Brandon Sun print edition April 22, 2014