Enbridge Pipelines Inc. – Line 3 Replacement Program – OC-063

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On November 29, 2016, Governor in Council directed the National Energy Board (NEB) to issue a Certificate of Public Convenience and Necessity for the Line 3 Replacement Project. This Certificate and the Orders authorizing the construction and operation of the Project are subject to 89 conditions that will be enforced by the NEB.

What’s Next?

While Enbridge has the legal authority to move forward with this project, there are a number of steps that must be completed before construction can begin.

Most of the conditions attached to the Certificate of Public Convenience and Necessity and the associated Orders require Enbridge to file documentation with the Board to demonstrate compliance. In some cases, the Board will need to review and approve the documentation before Enbridge can move forward. You can review these documents and any related NEB correspondence here [Folder 2985609].

Enbridge must also file a Plan, Profile, and Book of Reference (PPBoR) with the NEB.

On December 23, 2016, the company filed its proposed Plan, Profile, and Book of Reference and notices for service and publication with the NEB for approval.

A plan and profile is a drawing of the pipeline as seen from above (aerial view) and from the side (profile view) showing the exact proposed location of the pipeline. The book of reference identifies the lands, provides the names of the landowners and land occupants, and shows the dimensions (length, width and total area) of the right-of-way required for the pipeline.

Enbridge must provide a written notice to all landowners who have an interest in the lands along the proposed detailed route as well as publish its notice in various newspapers.

Land owners will have 30 days from the date they receive the written notice to file a written statement of opposition to the proposed detailed route with the NEB. The NEB will then decide whether to hold a detailed route hearing.

It’s important to note that a Detailed Route hearing is not intended to reexamine whether or not the project should be approved. The Board will only consider the issues related to the exact location and construction of the route. The purpose is to determine whether the company has proposed the best possible detailed route for the pipeline and the most appropriate methods and timing for building it.

You can find more information about detailed route hearings and how the NEB assesses these matters in Chapter 4 and Chapter 5 of the Pipeline Regulation in Canada: A Guide for Landowners and the Public.

Project Information

On November 5, 2014, Enbridge Pipelines Inc. submitted an application [Folder 2546069] for the Line 3 Replacement Program. The proposed project would include:

  • Replacing the existing Line 3 pipeline, 863.6 mm (outside diameter) crude oil pipeline with a new, 914.4 mm (Outside diameter) crude oil pipeline;
  • the addition of 55 new remotely operated sectionalizing valves;
  • the installation of 18 new pump stations and associated infrastructure and equipment;
  • the addition of 3 new storage tanks at the Hardisty Terminal;
  • associated interconnection work at facilities; and
  • the decommissioning of the existing Line 3 pipeline.

Some temporary infrastructure, such as work camps, stockpile sites and contractor staging areas may also be required during construction. 

The majority of the Line 3 replacement pipeline would be situated adjacent to Enbridge’s Mainline System corridor.  The Project footprint for the Line 3 Replacement Pipeline will typically be 45 metres in width, including 12 metres of permanent easement, with an additional 33 metres of temporary workspace.

The targeted in-service date is early 2019. Decommissioning activities are proposed to begin once the Line 3 Replacement Pipeline is in service, and would take 12 to 18 months to complete.

Pipeline Route

Map - Enbridge Pipelines Inc. Line 3 Replacement

Detailed route maps for the proposed Line 3 replacement pipeline are in Parts 1-18 of Appendix 2 (Environmental Alignment Sheet Package), found here: Filing A64179. Revised Re-Route Figures can be found here: Document A4L1G2, Document A4L1G3, Document A4L1G4 and Document A4L1G5.

Note: Environmental Alignment Sheets Index Maps are found here: Document A4E6X5 and Document A4E6X6. Revised Alignment Sheets can be found here: Document A4L1G6 and Document A4L1G7.

Detailed route maps for the existing Line 3 pipeline which Enbridge proposes to decommission are in Parts 1-14 of Appendix 12 (Decommissioning Environmental Technical Report) found here: Filing A64181.

Note: Decommissioning Alignment Sheets Index Maps are found here: Document A4E7E0.

Hearing Documents

During the National Energy Board's review of this project, all evidence, letters of comment, Board decisions and other relevant documents were filed with the National Energy Board and placed on the Board's online document repository [Folder 2545522]. These documents are accessible to the public. Funds awarded through our Participant Funding Program are announced in the Participant Funding Report.

Lifecycle of an NEB regulated pipeline

NEB Lifecycle Regulation

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NEB oversight throughout the lifecycle: Regulations – Conditions – Inpections – Audits – Enforcement.
NEB requires companies to consult throughout the entire lifecycle, with those potentially affected.

  • Planning
  • Application to Construct and Operate
  • NEB Public Hearing Decision/Recommendation
  • Construction
  • NEB Decision on Safe Operation
  • Application for Leave to Open
  • Operation and Maintenance
  • Application to Abandon
  • NEB Public Hearing Decision
  • Abandonment

News Releases

Frequently Asked Questions

Contact Information

If you have questions about the project, including whether or not the pipeline crosses your property, please contact Enbridge Pipelines at 1-888-967-3899 or via email at projects@enbridge.com.

For questions about the Line 3 Replacement Program, please contact:

Telephone (toll free): 1-800-899-1265

For media inquiries, please contact:


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