AltaLink 54L Transmission Rebuild

AltaLink Management Ltd. has proposed a complete replacement of the existing 54L transmission line, within the existing right of way. The 54L transmission line runs from the Banff National Park east boundary to the AltaLink Banff 123s substation within the Town of Banff. The transmission line rebuild will improve electric reliability to Banff and lake Louise, increase durability with new structures, and improve fire resilience with weathered steel structures. Main proposed activities include: vegetation removal, excavation, installation of bypass structures, replacement of transmission line, transportation of construction materials and equipment on site, and creating temporary staging area for construction material delivery. The project is planned to start in 2024 and will be completed within 2 years.

Latest update

December 23, 2022 – The public comment period on the project is closed. Parks Canada is considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
1 AltaLink 54L Transmission Rebuild - Public comments invited from November 23 to December 23, 2022 - November 23, 2022


Banff National Park
Box 900
Banff, Alberta T1L 1K2
Telephone: 403-762-1419

  • Location

    • Banff National Park (Alberta)
  • Nature of Activity

    • Hydroelectric Energy
  • Assessment Status

    In progress
  • Start Date

  • Proponent

  • Authorities

    • Parks Canada Agency
  • Assessment Type

    Project on federal lands
  • Reference Number


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.


Nearby assessments

...within 200 kilometres
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