Line 3 Replacement Program (Canada)

The proposed Line 3 Replacement Program involves replacement of all remaining segments of our Line 3 pipeline between Hardisty, AB and Superior, WI, along with construction of associated facilities. The project involves replacing existing 34-inch-diameter pipe with 36-inch-diameter pipe from Hardisty to Gretna, MB, and Neche, ND, to Superior. Segments of Line 3 from the U.S.-Canada international border to Neche, and near the Minnesota-Wisconsin border to Enbridge’s Superior Terminal, will be replaced with 34-inch-diameter pipeline, and are under separate segment replacement projects.

The $7.5-billion Line 3 Replacement Program (L3RP) is the largest project in Enbridge history, and includes replacing the existing pipe with modern pipe materials utilizing modern construction methodsresulting in restoration of one of Enbridge's primary pipelines along its Mainline crude oil system.

Under the L3RP, the majority of the existing Line 3 will be fully replaced with new pipeline and associated facilities on either side of the Canada-U.S. international border. The total length of the pipeline replacement is 1,031 miles (1,660 km).

On the Canadian side of the border, Enbridge Pipelines Inc. has announced plans to undertake an approximately $4.9-billion replacement program for most of its Line 3 pipeline running between Enbridge’s existing Hardisty Terminal in east-central Alberta and Gretna, Manitoba. Similarly, in the U.S., Enbridge Energy Partners L.P. will undertake an approximately US$2.6-billion replacement program for its Line 3 pipeline running between Neche, North Dakota, and Enbridge's existing Superior Station and Terminal Facility in Superior, Wisconsin.

Collectively, these programs are known as the Line 3 Replacement Programan important undertaking that will address integrity requirements, improve the reliability and safety of Enbridge’s Mainline system, and restore pipeline capability. The Canadian federal government announced on Nov. 29, 2016 its approval of the Line 3 Replacement Program. The anticipated in-service date for this project is 2019, pending U.S. regulatory approvals.

The L3RP will replace the existing 34-inch-diameter pipeline with a 36-inch-diameter pipeline from Hardisty to Gretna on the Canadian side, and from Neche, N.D., to Superior on the U.S. side. Segments of Line 3 outside of Cromer, Man., from the Canadian border to Neche, N.D., and near the Minnesota-Wisconsin border to the Superior terminal, are being replaced under separate segment replacement projects.

Under the L3RP, all segments of the line between Hardisty and Superior will be replaced with new pipe using the latest available high-strength steel and coating technology, while the existing segments will be removed from operation.

Replacing the pipeline is the most efficient way to maintain the reliability of Line 3, and it’s also the most timely and reliable transportation solution for transporting Western Canadian crude oil to refinery markets in Chicago, the U.S. Gulf Coast, and the Eastern U.S. and Canada.

The oral portion of the National Energy Board's (NEB) hearings on Enbridge's proposed Line 3 Replacement Program began on Nov. 30, 2015 in Winnipeg and concluded on Dec. 14, 2015 in Calgary. Filings and transactions pertaining to the project, as well as hearing process updates, can be found on the NEB website. The Project Description can also be viewed, downloaded, and/or printed by clicking on the link at the right side of this page.


As part of the L3RP, the existing Line 3 pipeline will be decommissionedand Enbridge will be responsible for the decommissioned line forever.

Decommissioning refers to the permanent cessation of operation, such that the cessation does not result in the discontinuance of service to end-users.

In general terms, the process of decommissioning a pipeline involves: removing the oil from the pipeline; cleaning the pipeline; physically disconnecting the pipeline; segmenting the pipeline and continuing to monitor it.

For more information on the decommissioning process, visit our L3RP Decommissioning webpage.

Pipeline Safety

Over the past decade, Enbridge has transported more than 15 billion barrels of crude oil with a safe delivery record that’s better than 99.999 per cent. We know that’s not good enough, because our goalsimply, unequivocallywill always be zero incidents.

At Enbridge, we back up our safety priorities by investing heavily in the tools, technologies, and strategies to ensure our energy transportation and distribution systems operate safely, reliably, and in an environmentally responsible manner. Over the past four years, ending in 2015, we spent $4.56 billion on system integrity and leak detection across our crude oil and liquids pipeline operations.

Click here for a more thorough description of Enbridge's dedication to pipeline safety, including the areas of monitoring, prevention, and emergency response.

Answering Your Questions

Replacing Line 3 is in the public interest because it reduces both the frequency and the magnitude of ongoing maintenance activities that would otherwise occur in order to maintain the safe operation of Line 3. This means significant benefits to landowners, local communities, and the environment.

Replacing Line 3 is also in the public interest because it would better serve the current and future petroleum requirements of the general public, who are dependent on refineries to meet their refined petroleum product needs.

Listening to you, understanding your views, and working to address your concerns are important to Enbridge. Our team is dedicated to ensuring you have informative materials and are given the opportunity to share your feedback with us. We want to hear from you.

We have hosted a variety of consultation activities. We're committed to continuing to give you the opportunity to meet and talk with team members, keep you informed with program updates, and engage our Mainline communities. Please see our Community Outreach section for information on how to contact us.

Line 3 Products

Line 3 is a “mixed-service” line, meaning it carries a variety of crude oils, including sweets, light and high sours, and light synthetics.

Shippers are permitted to ship crude oil blends or types on Enbridge’s liquids pipelines system that meet stringent quality specifications set by Enbridge, and filed with the National Energy Board. This includes heavy crudes such as diluted bitumenwhich has been studied by numerous scientific bodies, including the highly respected and influential National Academy of Sciences, and found to be non-corrosive and safe for pipelines.

At Enbridge, we’ve been transporting crude oil produced from Canada’s oil sands region since 1968. There is nothing new about transporting this form of crude oiland after nearly half a century, there is no evidence that internal corrosion is caused by transporting oil from the Canadian oil sands. In fact, Enbridge has never experienced an internal corrosion failure on its mainline pipeline system.


If you have any questions or concerns, or if you require further information regarding this program or Enbridge’s public involvement process, please call our program toll-free line:

1-888-967-3899 (leave your contact information)

Or send an e-mail to

We will respond to calls and e-mails promptly.

Media: Please call the Enbridge toll-free media line at 1-888-992-0997

There are no assets that meet your criteria.
Please modify the filters.

Project overview:

  • Type: Crude oil and liquids pipeline
  • Status: Planned
  • Length: 1,031 miles (1,659 km)
  • Expected in-service date: 2019
  • Expected initial capacity: 760,000 barrels per day
  • Estimated to transport: Light, medium and heavy crude
  • Estimated capital cost: $7.5 billion
Charting a path from enthusiasm to employment
L3R Training-to-Employment Program mobilizes again in Saskatchewan

Line 3 Replacement Program

The $7.5-billion Line 3 Replacement Program (L3RP), running from Hardisty, AB to Superior, WI, is the largest project in Enbridge history.

Learn More

Project Information:

Line 3 Replacement Program: Directly Affected Landowner Notice and Raffle

In early December 2016, the National Energy Board issued a certificate of Public Convenience and Necessity (OC-063) to Enbridge for the Line 3 Replacement (L3R) Program. Once a certificate is issued, Enbridge is required to contact landowners in person to serve a Section 34(1)(a) Notice, which outlines the detailed route of the pipeline.

This activity is in accordance with Sections 33 and 34 of the National Energy Board Act.

Enbridge understands that this can be a busy time of year for landowners, so we will be holding landowner meetings along the L3R right-of-way. These meetings are intended to minimize inconvenience to the landowners and efficiently complete the Section 34(1)(a) process.

The meetings will take place between Monday, March 20 and Saturday, March 25, 2017, from 8 a.m. to 8 p.m. As a directly affected landowner, if you attend one of these meetings, to acknowledge the receipt of your notice, your name will be entered in a raffle.

Raffle prizes include:

  • 1 overall Grand Prize: A pickup truck to a value of $75,000, or in lieu of a truck, $75,000 in cash

Also, at each of the 13 landowner meeting locations, a draw will be made for the prizes listed below:

  • $3,000 cash
  • $1,500 cash
  • $500 cash
  • Patio set

Please click on this link to read the rules and regulations of the Enbridge Pipelines Inc. 2017 Line 3 Replacement Directly Affected Landowner Raffle.

If you have questions about the L3R landowner notice process or raffle, please contact Marnie Yohemas at 780-969-7679 or via email at