Lake Manitoba and Lake St. Martin Outlet Channels Project

Rank 2022


Image Credit: Province of Manitoba

Industry Sector: Water

Project Type: Water Wastewater

Project Value: $540 million

Funding Source: Public

Federal Funding: $247.5 million

Provincial Funding: $292.5 million

Province: Manitoba

City / Region: Interlake

Estimated End Date of Substantial Completion: 2025

The $540 million flood protection project consists of a 24.1 km long channel from Lake Manitoba and a 23.8 km long channel from Lake St. Martin. The Lake Manitoba outlet channel includes an inlet at Lake Manitoba and outlet at Lake St. Martin, a new water control structure with a bridge and three new bridge crossings over the outlet channel. The Lake St. Martin outlet channel includes an inlet at Lake St. Martin and outlet at Lake Winnipeg, a new water control structure with a bridge, as well as the necessary Manitoba Hydro infrastructure to power the control structure. Construction is expected to commence in early 2022. During 2021, Manitoba Infrastructure continued to advance the Outlet Channels Project through the provincial and federal environmental assessment processes. Meetings are ongoing with federal regulatory agencies, Indigenous groups and stakeholders such as the Rural Municipality of Grahamdale. As the Outlet Channels Project continues to move through the environmental and consultation processes, engineering design work is happening concurrently. Preliminary engineering design is complete for all channel components and detailed design work is well underway. Construction tender packages are under development but cannot be released until a provincial licence and federal environmental approvals are received.

Project Owner: Government of Manitoba

Engineer: Hatch; KGS Group; Tetra Tech

Contractor: TBD

Environmental Services: Stantec; North/South Consultants Inc.; WSP Global Inc.; and Magellanicum Ecological Services

2022 Rank: 88

2021 Rank: 83

2020 Rank: 83

2019 Rank: 84


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