The transmission line rebuild is scheduled from January to June 2025. We will continue to provide you with updated schedule information and project updates as the project progresses.

Project background

Built in 1956, AltaLink’s existing 150L transmission line has reached the end of its lifecycle and will be rebuilt to ensure a reliable supply of power is available for years to come. The line runs from the west end of Calgary to the Stoney Nakoda Reserve in Rocky View County.

The rebuild includes:

• rebuilding 27 kilometres of 138 kilovolt transmission line
• replacing the existing wooden H-frame structures with primarily steel monople structures. Wood structures may be used in certain locations.
• removing and salvaging the existing transmission line