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Call Before You Dig

Whether you're building on a jobsite or in your backyard, before you dig, know what's below.  Call your One Call Centre free of charge to have your underground utilities located and marked.

In Canada

 British Columbia  1-800-474-6886  http://www.bconecall.bc.ca/
 Alberta  1-800-242-3447  http://www.alberta1call.com/
 Saskatchewan  1-866-828-4888  http://www.sask1stcall.com/
 Manitoba  1-800-827-5094  www.callb4udig.mb.ca/
 Ontario  1-800-400-2255  http://www.on1call.com/
 Québec  1-800-663-9228  http://www.info-ex.com/

To request a Canadian locate online

Visit the Click Before You Dig Portal


In the United States

 All states  811


To report an emergency:


Portland Natural Gas Transmission System (PNGTS): 1-800-830-9865



The Right-of-Way

TransCanada approvals are required for heavy equipment crossing, construction, and excavation activities on or near our right-of-way (RoW) in accordance with your province or state. The RoW is a strip of land usually between 15 metres (50 feet) to 60 metres (200 feet) wide, and containing one or more pipelines. The RoW enables TransCanada to gain access to its facilities for inspection, maintenance, and testing purposes.

Before You Dig

Whatever the project, keep everyone safe by calling your local One Call Centre at least three days in advance to learn the exact location of pipelines and other underground utility installations on your property.  You will avoid costly repairs and interruption of vital services that can occur as a result of a line strike.

Before You Cross

TransCanada approvals are required for crossing over our RoW, to reduce the risk of pipeline damage and protect the public and the environment.
Companies, utilities, and landowners require approval from TransCanada to cross our facilities or conduct work within our pipeline RoW.  If there is any planned work on your property, contact a TransCanada representative for a Crossing Agreement at least two weeks before crossing. 
In Canada, please call your local One Call Centre for all crossing enquiries; alternatively, you may send your request via e-mail to crossings@transcanada.com.
In the US, please contact 811 for all crossing enquiries or contact TransCanada via e-mail at us_crossings@transcanada.com.

Before You Build

In Canada, for all development enquires within 200 metres of the pipeline or 750 metres of compressor stations, please contact TransCanada's agent Lehman & Associates at 1-866-602-0663.  This includes, but is not limited to, permanent buildings and accessory structures such as pools, sheds, parking lots, decks, greenhouses, garages, and fences.
In the US, call 811 three business days prior to any ground disturbances or excavation.  A TransCanada Representative will meet with you to discuss your plans and attend any ground disturbance activities near or within our pipeline right-of-way.

Location of our pipelines

We use a variety of markers and signs along the RoW to clearly mark the general location of our pipelines.  Markers are typically placed at any intersection or in heavily congested areas. However, pipeline markers should not be relied on for the exact location, path, or depth.
Our pipelines are buried underground at varying depths and the exact depth of cover can only be accurately determined by a TransCanada representative.  For this reason, certain activities such as erecting structures and planting trees within the RoW are restricted until authorized by TransCanada. 
Please call your local One Call Centre and, TransCanada will send a representative to your proposed excavation site to mark buried utilities at no cost to you.

Supporting Safety Initiatives

Call Before You Dig



United States


  • 01.800.111.3333

Emergency Response


Portland Natural Gas Transmission System (PNGTS): 1.800.830.9865




Common Ground Alliance

TransCanada is a sponsor of this leading organization.

Pipelines & Information Planning Alliance

A collaborative effort by a spectrum of pipeline safety stakeholders, including TransCanada, PIPA has developed recommended practices for protecting communities, protecting transmission pipelines, and communicating among stakeholders.