Lower Mattagami River Project

Province: Ontario

City/Region: Northeast of Kapuskasing

NR

Project Rank

Back to Top100 Infrastructure Projects

Project End: 2015

Project Type: Hydroelectric

Industry Sector: Energy

Project Amount: $2.6 billion

Funding Source: Public

Provincial Funding: $2.6 billion

Previous Rankings

201515
201415

About The Project

This project is the largest investment in hydroelectric power in Northern Ontario in nearly 40 years. It has four components, which include the rebuilding of the Smoky Falls Generating Station as well as the addition of new generating units at the Harmon, Kipling, and Little Long generating stations. By the time work is completed, the capacity of the Lower Mattagami plants will have increased to 924 from 486 MW.

Smoky Falls was originally constructed in 1931, while the others were built in the 1960s. In order to accommodate the additional energy that will be supplied because of this project, Hydro One is adding an additional 230-kV circuit to the transmission line that runs from the Harmon Junction to the Kipling Generating Station, running approximately 4 km. The Moose Cree Nation will have up to a 25-per cent equity share in the project. Construction is ongoing with the entire project slated for completion in 2015.

Project Owner: Ontario Power Generation and Moose Cree First Nation

Engineer: AECOM (civil, mechanical, electrical); Aecon (design); Hatch (owner’s rep); SNC-Lavalin; Levelton Consultants Ltd. (materials engineering on behalf of contractor)

Contractor: The Kiewit Alarie Partnership—Kiewit, Leo Alarie and Sons Construction, a subsidiary of Aecon (construction); SNC-Lavalin (design build)

Other Key Players: Sodexo; Allied Fabricators; Groupe Canmec; MMM Group (LEED, energy, and commissioning, generating station at Smoky Falls)

Architects: AECOM

Turbine Supplier: Alston (hydro turbine generators); Andritz Hydro

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