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Projects > NW Calgary Transmission Line Project



NORTHWEST Calgary Transmission Line Relocation Project

Project Overview

ENMAX Power Corporation (ENMAX Power) owns and operates transmission line 16.61L (16.61L) which has provided electrical services to residential and commercial properties in Calgary’s Collingwood, Charleswood, Brentwood, Dalhousie and Varsity communities since the early 1960s.

Through its regular inspection program, ENMAX Power has determined that most of the existing wood poles and/or components (including insulators, crossarms and hardware) have reached their anticipated end of life. This work is required to ensure the reliability and integrity of ENMAX’s transmission system and to ensure the safe, reliable supply of electricity to the City of Calgary. 

This project will include upgrading existing electrical infrastructure and installing new structures along the existing alignment through Brentwood, Charleswood and Collingwood approximately 6.3 kilometers in length.​


Project Timeline

  • Project initiation – late 2021
  • Public Consultation – Q1 2022
  • AUC application – May 2022
  • AUC approval – January 2023
  • Design and procurement phase – Spring 2023
  • Construction starts – Summer 2023

Communication efforts are ongoing and will continue through all phases of the project, to ensure timely updates are provided to those impacted. Project timelines are subject to change due to factors such as weather, supply chain and project complexity.

What to expect during construction

Every effort is made to minimize the effect construction work has on daily stakeholder activities. ENMAX Power follows all applicable requirements, including standards and bylaws. 

During construction, you can typically expect to see: 

  • Noise and/or minor vibrations 
  • ENMAX and contractor personnel and vehicles 
  • Bike and walking path closures 
  • Sidewalk and lane closures 
  • Vegetation management and tree trimming 
  • Access to fenced yards that contain electrical infrastructure 

ENMAX and contractors will be regularly maintaining the site to mitigate impacts like dirt and debris.​

Important Documents

Contact Us

If you have any questions or wish to discuss this project, please contact us:

Power Customer Relations



Customers are free to purchase natural gas services or electricity services from a retailer of their choice. For a list of retailers, visit ucahelps.alberta.ca or call 310-4822 (toll free in Alberta).