Line 3 Pipeline Replacement

Project Details

Docket Numbers
Project Name
Line 3 Pipeline Replacement
Applicant
Enbridge, LLP
Location
Description

Enbridge Energy proposes to replace 337 miles of the Line 3 Pipeline in Minnesota. Line 3 originates in Canada, continues through North Dakota, enters Minnesota in Kittson County, and terminates in Superior, Wiscsonsin.

Status
active

Project Contact

Contact
Sam Weaver

Project Summary

Enbridge Energy (Enbridge) proposed to construct a new oil pipeline in Minnesota to replace its existing Line 3 pipeline. Enbridge stated that the purpose of the project is to address pipeline integrity and safety concerns related to the existing Line 3 and to restore the throughput of the line to its original operating capacity of 760,000 barrels per day (bpd).

Enbridge applied for a certificate of need (CN) and a route permit from the Minnesota Public Utilities Commission (Commission) in April 2015. The Minnesota Department of Commerce, in cooperation with the Minnesota Department of Natural Resources and the Minnesota Pollution Control Agency, prepared an environmental impact statement (EIS) for the project. The final EIS was issued in February 2018. Following public hearings and a report from an administrative law judge, the Commission issued a certificate of need and a route permit for the project in the fall of 2018.   

In June 2019, the Minnesota Court of Appeals found the final EIS for the project to be inadequate.  The Deparment of Commerce subsequently revised the final EIS.  On May 1, 2020, the Commission found the final EIS adequate and reissued the certificate of need and route permit for the project.  On December 1, 2020, Enbridge started construction of the project.  Enbridge anticipates that it will take 6 to 9 months to construct the project.

Interactive Map

Latest News

The Department of Commerce has Issued the Second Revised Final EIS for the Line 3 Project. Comments on the Adequacy of the EIS Will be Accepted by the Commission through January 16, 2020.

The Minnesota Court of Appeals Finds the EIS for the Line 3 Project Inadequate and Remands the Matter to the Commission for Further Proceedings.

The Minnesota Supreme Court Declines to Review Challenges to the EIS for the Line 3 Project.

Key Project Documents

Date Title Description
September 8, 2022 Existing Line 3 Landowner Choice Program The Landowner Choice Program allows landowners along the existing Line 3 pipeline to choose either pipeline removal or decommissioning in place. EERA staff serves as an independent liaison to ensure that program requirements are met, and landowners have access to an independent engineer at the company's expense.
May 1, 2020 Commission Order Finding Second, Revised Final EIS Adequate and Reissuing a Certificate of Need and Route Permit for the Line 3 Project The Commission's order finding the second, revised final environmental impact statement (EIS) adequate and reissuing a certificate of need and route permit for the Line 3 project. Includes Commission order and reissued orders from 2018 and 2019.
December 9, 2019 Final Environmental Impact Statement for the Line 3 Pipeline Project - Second Revision The second revised final environmental impact statement (EIS) for the Line 3 pipeline project. This second revision addresses the Commission's order to analyze a potential oil spill from the pipeline into the Lake Superior watershed.
October 8, 2019 Commission Order Requesting Revision of Final EIS Commission order finding the final EIS inadequate and requesting the Department of Commerce to revise the EIS to include analysis of a potential oil spill into the Lake Superior watershed.
January 23, 2019 Commission Order Approving Modifications to Certificate of Need for the Line 3 Project The Commission's order approving modifications to the certificate of need for the Line 3 project. The order addresses five modifications: parental guaranty, landowner choice program for pipeline removal, decommissioning trust fund, neutral footprint program, and liability insurance.
October 26, 2018 Commission Order Granting a Pipeline Routing Permit for the Line 3 Project The Commission's order granting a pipeline routing permit for the Line 3 project. Includes order, routing permit, and maps.
September 5, 2018 Comission Order Granting a Certificate of Need for the LIne 3 Project with Modifications and Requiring Additional Filings The Commission's order granting a certificate of need for the Line 3 project. The order requires additional filings which must be approved by the Commission.
February 12, 2018 Final Environmental Impact Statement for the Line 3 Pipeline Project - Revised The revised final EIS for the Line 3 pipeline project issued by the Department of Commerce.
April 24, 2015 Certificate of Need Application -- Line 3 Pipeline Replacement Project Enbridge Energy is proposing to construct a new 337-mile long oil pipeline to replace an existing pipeline, Line 3, in Minnesota.
April 23, 2015 Route Permit Application -- Line 3 Pipeline Replacement Project Enbridge Energy proposes to replace 337 miles of existing Line 3 Pipeline and associated facilities between the Norht Dakota/Minnesota border and the Minnesota/Wisconsin border.

Environmental Review and Permitting Process

Enbridge's proposed Line 3 replacement project requires two approvals from the Minnesota Public Utilities Commission (Commission) - a certificate of need (CN) and a route permit. Enbridge applied to the Commission for these approvals in April 2015.

The Minnesota Environmental Policy Act (MEPA) requires that an environmental impact statement (EIS) be prepared for major governmental actions that have the potential for creating significant environmental impacts. To fulfill its MEPA responsibilities, the Commission has authorized the preparation of an EIS that addresses Enbridge's CN and route permit applications. The Commission has authorized Commerce's Energy Environmental Review and Analysis (EERA) staff to prepare the EIS, in cooperation with the Minnesota Department of Natural Resources and the Minnesota Pollution Control Agency.

The EIS will be issued in draft form, a draft EIS, so that it can be improved through public comment. A final EIS will be developed based on comments received on the draft EIS. Upon completion of the final EIS, public hearings will be held in the project area. The hearings will be presided over by an administrative law judge (ALJ) from the Office of Administrative Hearings. The hearings will address Enbridge's CN and route permit applications. At the public hearings, citizens will have an opportunity to submit comments, present evidence, and ask questions. After completion of the hearings, the ALJ will submit a report to the Commission with findings of facts, conclusions of law, and recommendations regarding a CN and route permit for the project. Decisions by the Commission on Enbridge's CN and route permit applications are anticipated in the spring of 2018. Click here for an environmental review and permitting flowchart.

Questions Asked and Answered

During the environmental review and hearing processes for the Line 3 project, the Department of Commerce and other agencies may receive questions from citizens, local governments, and tribes about the project. Twice a month we'll summarize here the questions that we've received and the answers that we've provided. Hopefully, these questions and answers will be helpful to all persons participating in the state's environmental review and hearing processes for the Line 3 project.

If you have a question about the Line 3 project or the state's environmental review and hearing processes for the Line 3 project, please contact us. Scroll down to the "Participate" section on this webpage and you'll find phone and email contacts for Department of Commerce and Commission staff.

  • January 9, 2017. Topics: maps; schedule; viewing testimony
  • January 23, 2017. Topics: SA-04; changes in oil blends; the social cost of carbon
  • February 6, 2017. Topics: decommissioning in-place of existing Line 3; Canadian National Energy Board report
  • February 20, 2017. Topics: U.S. State Department draft supplemental EIS for Line 67
  • April 10, 2017. Topics: Draft EIS issuance date; participating in public hearings
  • May 30, 2017. Topics: Draft EIS at libraries; public meeting format; Draft EIS comments
  • June 26, 2017. Topics: Availability of Draft EIS comments
  • September 12, 2017. Topics: Final EIS and Public Hearing Comment Periods

Participate

Sign up for the project mailing list to receive notices about project milestones and opportunities to participate (meetings, comment periods, etc.).  Contact docketing.puc@state.mn.us, 651-201-2204Call: 651-201-2204, or 1-800-657-3782 Call: 1-800-657-3782 with the project's docket number(s), your name, mailing address, and email address.  The Line 3 project has two docket numbers.  The docket number for Enbridge's certificate of need application is 14-916.  The docket number for Enbridge's route permit application is 15-137.

To review all documents filed with the Commission regarding the Line 3 project, go to: http://www.mn.gov/puc/, click on "Search Documents, eDockets," and enter the docket number.  The Line 3 project has two docket numbers.  The docket number for Enbridge's certificate of need application is 14-916.  The docket number for Enbridge's route permit application is 15-137.

To receive an email every time a document is filed with the Commission regarding the Line 3 project, create a subscription with the Commission's electronic docketing system (eDockets).  Go to: https://www.edockets.state.mn.us/EFiling/subscription/createSubscription.do?method=subscribeNew and follow the instructions.

If you have questions or need more information please contact:

Minnesota Department of Commerce (Environmental Review)

Minnesota Public Utilities Commission (Permitting and Commission Process)

Enbridge Energy (Line 3 Project)

Docket Documents

View All Project Documents 

Date Title On Behalf Of Description
June 19, 2025 20256-220039-01 Enbridge Energy, Limited Partnership COMPLIANCE FILING--SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 216
June 16, 2025 20256-219906-01 Enbridge Energy, Limited Partnership SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 55
May 22, 2025 20255-219185-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 215
May 15, 2025 20255-218978-01 Enbridge Energy, Limited Partnership SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 54
May 15, 2025 20255-218985-01 Enbridge Energy, Limited Partnership SEC 6.11 TRIBAL ECONOMIC OPPORTUNITY AND LABOR EDUCATION PLAN Q1 2025
April 17, 2025 20254-217820-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 214
April 16, 2025 20254-217754-02 Enbridge Energy, Limited Partnership Section 8.5 Updated Field Emergency Response Plan
April 16, 2025 20254-217754-01 Enbridge Energy, Limited Partnership Section 8.5 Updated Pipeline Integrity and Emergency Response Plan_Cover
April 16, 2025 20254-217754-03 Enbridge Energy, Limited Partnership Section 8.5 Updated Integrated Contingency Plan
April 11, 2025 20254-217499-01 Enbridge Energy, Limited Partnership COMPLIANCE FILING--SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 53
March 20, 2025 20253-216632-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 213
March 17, 2025 20253-216457-01 Enbridge Energy, Limited Partnership COMPLIANCE FILING--SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 52
February 20, 2025 20252-215566-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORT NO. 212
February 14, 2025 20252-215407-01 Enbridge Energy, Limited Partnership SEC 6.11 TRIBAL ECONOMIC OPPORTUNITY AND LABOR EDUCATION PLAN Q4 2024
February 14, 2025 20252-215431-01 Enbridge Energy, Limited Partnership SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 51
January 29, 2025 20251-214608-02 Enbridge Energy, Limited Partnership SECTION 6.4 EXPOSED PIPE ANNUAL REPORT
January 29, 2025 20251-214643-01 Enbridge Energy, Limited Partnership SECTION 6.10 CYBER SECURITY - 2025 FILING
January 16, 2025 20251-214041-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 211
January 15, 2025 20251-213986-01 Enbridge Energy, Limited Partnership December 2024 Complaint Report
December 19, 2024 202412-213195-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 210
December 16, 2024 202412-213013-01 Enbridge Energy, Limited Partnership SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 49
November 21, 2024 202411-212275-01 Enbridge Energy, Limited Partnership SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 209
November 15, 2024 202411-211998-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 5.3 COMPLAINT PROCEDURES_REPORT NO 48
November 14, 2024 202411-211955-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 208
November 14, 2024 202411-211957-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SEC 6.11 TRIBAL ECONOMIC OPPORTUNITY AND LABOR EDUCATION PLAN Q3 2024
November 8, 2024 202411-211729-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 6.13 COUNTY PROPERTY TAX 2023
November 7, 2024 202411-211686-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 207
October 31, 2024 202410-211491-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP COMPLIANCE FILING--SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 206
October 24, 2024 202410-211272-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 205
October 17, 2024 202410-211113-01 ENBRIDGE ENERGY, LIMITED PARTNERSHIP SECTION 4.9 PUBLIC STATUS REPORTS_REPORT NO. 204