Manitoba–Minnesota Transmission Project

The Manitoba–Minnesota Transmission Project will strengthen the overall reliability of Manitoba’s electricity supply, allow Manitoba Hydro to fulfill current export sales agreements, and increase access to markets in the United States, supporting the export sales that keep rates lower for Manitobans.

With regulatory approvals in place, we are now actively constructing the 500-kV transmission line from the Winnipeg area to the U.S. border in southeastern Manitoba where it will connect to the Great Northern Transmission Line. This includes upgrades to the Dorsey, Riel, and Glenboro converter stations.

Construction updates

In mid-November, the first towers were erected near the US border.

In mid-November, the first towers were erected near the US border.
Enlarge image.

Clearing continues in the existing Riel to Vivian corridor, south of Highway 1, near Ste. Genevieve, north and south of La Broquerie, north and south of Zhoda and near the US border. As of mid-November, the first towers went up near Piney and Dorsey. Tower assembly and foundation installation continue in the South Loop, north and south of La Broquerie and in the Piney area. Tower assembly for private lands south of Anola, northwest of Ste. Genevieve and north of La Broquerie continue in the staging areas. Tower assembly for Crown lands northeast and southeast of Sundown and private land northeast of Zhoda have continued at a staging area.

At Dorsey Converter Station, the piling for the structures, transformers and other equipment is complete and foundation work is ongoing. Cables and panel work are continuing in the building and steel, transformers and other equipment are arriving on site.

At Glenboro Station, the transmission line relocation work is complete. The station expansion is continuing with piles being installed, the foundation being poured, and transformer, other equipment, cable and panel work ongoing.

At Riel Converter Station, piling for the structures, transformers, other equipment is complete, foundation work is ongoing, steel is being erected and stringing has started. Cable and panel work are continuing in the building. Part of the work at Riel Station involves fusing electrical connections together. To do that, we use an implosion sleeve. It’s a safe and effective way to create a permanent, high-quality connection between two separate pieces of electrical equipment. An implosion sleeve makes a loud noise and flash similar to a firework. If you hear or see one, don’t panic — it’s probably just us. We continue to use implosive sleeves at Riel Station, usually between 8 a.m. to 5 p.m., Monday to Saturday. To learn more, watch our video, Using Implosion Sleeves to Splice Conductor, on YouTube.

Sign up for email notifications about upcoming milestone events.

Learn how we are protecting the environment and keeping people safe during construction (PDF, 222 KB).

Watch videos that explain the need for new transmission and the value of electricity exports.

Maps and documents related to the project are available in the MMTP document library.

Contact us

For more information about the Manitoba–Minnesota Transmission Project: