Strait of Canso Transmission Crossing

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Strait of Canso Transmission Crossing

Creating a cleaner, more reliable electricity future

This project began in February and wrapped up in August 2018. Read the news release here:

We’re building a new transmission line crossing across the Strait of Canso at Auld’s Cove and Troy.

This work is creating a cleaner, more reliable electricity future for Nova Scotians by delivering hydroelectricity from the Maritime Link. The new transmission line will provide greater capacity for this renewable energy.

The new crossing will be 45 metres south of the existing crossing and will separate the two existing sets of lines onto two separate circuits. We’re building six transmission towers to separate the lines – three on each side of the strait – with three lines on each set of towers. The existing crossing will remain in use and its navigation lights will be transferred to the new, taller towers.

Work will require cranes and helicopters to erect the towers. Safety is always our first priority on all of our construction projects. There is a robust safety plan in place and all work will be carried out far from residential areas.



  • Large scale excavation of soils and earthworks began in February
  • Concrete mud mats poured in March to ensure even ground for foundations
  • Erosion and sediment controls established
  • Risk assessment forms and tailgate meetings completed daily
  • Suspension steel assembly and erection complete
  • Over 30,000 manhours worked onsite without a lost time incident
  • Starting October 27, the top portion of the 530 foot towers will be flown by helicopter to complete tower assembly (complete)
  • We are now in the final construction phase of this project, which involves the installation of high voltage electrical lines across the towers
  • Project completed in August 2018.


Dozens of local contractors, suppliers and consultants are helping us make this project a reality. They include:

  • Zutphen Contracting – Port Hood
  • Norvon – Port Hastings
  • MacAskill Boat Safety – Aulds Cove
  • First Strike Security – Sydney - Hire all local workers
  • Strait Supplies – Point Tupper
  • Atlantic Marine and Rigging – Port Hawkesbury
  • Raw Steel Fabricators – Point Tupper
  • Mulgrave Machine Works – Mulgrave
  • A.W. Leil Cranes – Point Tupper
  • ScottVac – LongPoint
  • Strum Consulting – Antigonish
  • Steelmac – Antigonish
  • Jack Reynolds Photography – Port Hawkesbury
  • Ideal Concrete - Point Tupper
  • Langilles Wood Contracting – Aulds Cove
  • Central Supplies – Port Hawkesbury
  • Eastern Sanitation – Antigonish
  • Walker’s Electrical – Creignish
  • DeCoste Electrical – Antigonish
  • Sampson Site Technical Services - Linwood
  • LMI Management - Arisag
  • Myette Engineering - Tracadie
  • MacLeod’s Safety Services - Truro - Hire all local workers
  • Celtic Air Services - Port Hawkesbury

Thank you for your understanding as we carry out this important work to improve the reliability of service to our customers and to ensure we are on track to meet our provincial requirement that 40% of electricity comes from renewable sources by 2020.

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