Cleared corridors ensure public safety and service reliability, and allow maintenance and repair teams to do their job.
Transmission lines carry power at much higher voltages than distribution lines. That’s why the operating and safety standards of Hydro-Québec and the CSA Group are stringent for transmission lines.
Hydro-Québec’s teams carry out periodic inspections in transmission lines. The inspections serve to check the condition of the equipment and ensure that those who use the rights-of-way comply with Hydro-Québec regulations. Any encroachment or unauthorized activity will be reported and may be subject to a non-compliance notice.
What is prohibited in a transmission line right-of-way
- Building or expanding a structure (house, garage, hangar, shed, tank, etc.).
- Modifying the ground elevation by digging or adding material (no excavating, no filling).
- Storing or stacking (wood, snow, earth, waste, debris, materials, etc.).
- Installing a pool (above-ground or in-ground).
- Installing a trampoline, water-play structure, camping trailer or clothesline.
- Parking trucks or heavy equipment.
- Installing a fence higher than 2.5 m.
What may be allowed in a transmission line right-of-way with Hydro-Québec’s authorization
When Hydro-Québec has a servitude, or easement, on your property, you may still use the land in several ways.
Below is a partial list of activities that are allowed in a transmission right-of-way, but only if you have written approval from Hydro-Québec.
- Parking vehicles on a daily basis and installing concrete curbing for this purpose.
- Landscaping: planting small trees and shrubs (maximum of 2.5 m high at maturity), installing concrete curbing and lighting.
- Modifying the ground elevation.
- Building a retention pond; you must first purchase the land if it is owned by Hydro-Québec.
- Building a logging road.
- Building an ATV trail.
- Building a bike or walking path, including curbing, lighting, etc.
- Building infrastructure (storm or wastewater sewer, waterworks, streets, public services, lighting, etc.).
- Building a turnaround area with or without a loading dock.
- Operating a tree farm (e.g., Christmas trees, cedars).
- Growing berries.
- Erecting a private power line to connect a home to Hydro-Québec’s distribution system.
- Operating a quarry or sandpit.
- Erecting a metal fence no taller than 2.5 m.
The list is for information purposes only. You must always obtain authorization before carrying out work in a transmission line right-of-way.
You may also be interested in these pages
- What is a transmission line and why is it in a cleared corridor?
- How does Hydro-Québec control the height of trees in a transmission line right-of-way
- Answers to frequently asked questions about vegetation near transmission lines
- Installation d’un ouvrage dans l’emprise d’une ligne aérienne de transport [PDF 706 Ko - in French only]