Annual ice-breaking operations start on Red River to reduce potential for ice jams, Manitoba government says

Manitoba’s annual program that cuts and breaks up river ice to reduce the potential impacts of flooding from ice jams is starting on the Red River on Tuesday, the province said in a news release.

The program was launched in 2006 to reduce the risk of flooding from ice jams, which happen when floating ice “jams” between the riverbanks and blocks the movement of water, causing it to back up and potentially overflow the banks.

The province uses remote-controlled ice-cutting units and three Amphibex icebreakers each year to cut and break roughly 28 kilometres of ice on the Red River, from Netley Marsh to Selkirk, over a width of about 100 metres.

While ice-cutting and ice-breaking operations are often done on the Icelandic River at Riverton and at the outlet of the Portage Diversion, current operations are only planned for Riverton, the release said.

The province will continue to monitor the Portage Diversion area, where the ice-cutting operations are not expected to be needed right now.

The province said notices will be posted in areas where the machines are operating, and river users are advised to stay off the ice where those notes are put up or where there’s evidence of recent ice-cutting.

It also reminded ice fishers to remove huts or other materials in the areas where the program is happening.

The work is expected to be done by March 15, the province said.