Twinning of the Trans-Canada Highway in Manitoba

Manitoba Transportation and Infrastructure is proposing to construct two new lanes along a 16-kilometre stretch of the Trans-Canada Highway, about five kilometres west of Provincial Road 301 and near the Manitoba/Ontario border in Whiteshell Provincial Park, Manitoba. As proposed, the Twinning of the Trans-Canada Highway Project in Manitoba would involve expanding the existing two-lane highway into four lanes, rebuilding or replacing two interchanges, upgrading access at Hunt Lake and Lyons Lake, and replacing the flyover of Provincial Road 301. Additionally, the project may include moving utilities, installing wildlife fencing and corridors, and building other related structures.

Please note the requestors also asked for consideration to designate the twinning of the Trans-Canada Highway in Ontario. The Impact Assessment Agency of Canada previously received a request to designate the Trans-Canada Highway Twinning Project located in Ontario and the Vice-President's Response was published in September 2024. This designation request will therefore focus on the Trans-Canada Highway Twinning Project located in Manitoba.

Latest update

June 4, 2026 — The President of the Impact Assessment Agency of Canada has determined that the Twinning of the Trans-Canada Highway in Manitoba proposed by Manitoba Transportation and Infrastructure does not warrant designation under the Impact Assessment Act. The reasons for the President’s determination are provided in the President’s response.

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Key documents

Key documents
Document number Document title File Date
2 President's response - June 4, 2026
1 Request for designation of project PDF (2.7 MB) March 12, 2026

Contacts

Impact Assessment Agency of Canada
160 Elgin Street, 22nd Floor
Ottawa, Ontario K1A 0H3
Telephone: 613-957-0700 or 1-866-582-1884
Fax: 613-957-0862
Email: information@iaac-aeic.gc.ca

Media Relations
Impact Assessment Agency of Canada
160 Elgin Street, 22nd Floor
Ottawa, Ontario K1A 0H3
Email: media@iaac-aeic.gc.ca


Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

  • Location

    • Whiteshell Provincial Park (Manitoba)
    • Whiteshell Provincial Park (Manitoba)

  • Nature of Activity

    • Highways and Roads

  • Assessment Status

    Completed

  • Start Date

    2026-04-08

  • Proponent

    Manitoba Transportation and Infrastructure

  • Authorities

    • Impact Assessment Agency of Canada

  • Assessment Type

    Request for designation not applicable

  • Reference Number

    90348

Nearby assessments

...within 200 kilometres
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