Delivering the energy that keeps Michigan moving since 1953.
State of Michigan and Enbridge agree on measures to further protect the Straits of Mackinac
On Oct. 3, 2018, Enbridge entered into a second agreement with the State of Michigan on the future of Line 5.
Details: Enbridge's October 2018 agreement with the State of Michigan
This agreement on the future of Line 5 protects the waters of the Straits and the Great Lakes in several ways, and makes a safe pipeline even safer.
New agreement with State of Michigan bolsters Great Lakes protective measures
Enbridge, State will explore Line 5 tunnel option beneath Straits of Mackinac
Interactive webpage: Protecting what matters
Find out how we safeguard the Great Lakes at the Straits of Mackinac crossing, through a series of overlapping safety precautions.
Enbridge's economic impact on Michigan
Learn more about the ongoing tax revenue, local and regional economic stimulation, community investments, and workforce salary provided by Enbridge in your area.
Saturation diving operation on Line 5 Straits of Mackinac crossing is a Great Lakes first
Coating inspections, dent repairs, cathodic protection testing, anchor support work will strengthen Line 5 safety measures
St. Clair River HDD Installation
Replacing the existing Line 5 St. Clair River crossing segment is one of our commitments as part of Enbridge's agreement with the State of Michigan.
Upper Peninsula propane retailer: ‘Losing Line 5, you just can’t talk like that’
Enbridge’s Line 5 delivers 65% of the propane used in the U.P., and 55% of Michigan’s statewide propane needs
Enbridge presents Line 5 Straits of Mackinac replacement alternatives to State of Michigan
Study IDs tunnel and open-cut secondary containment installations as feasible options
Seven ways to protect Michigan's water
November 2017 agreement between Enbridge and Michigan outlines seven actions to protect State's water.
About Line 5
A vital piece of Michigan energy infrastructure since 1953.
Infographic: Rock-solid protection in the Straits
A protective layer of engineered gravel and rock is one option we're evaluating to prevent an anchor strike on Line 5 in Michigan's Straits of Mackinac.
Enbridge's Line 5 Straits replacement alternatives report
This detailed report, delivered on June 15, 2018 to the State of Michigan, explores feasible alternatives to Enbridge's Line 5 Straits of Mackinac crossing.
Safeguarding the Great Lakes

We take special precautions to protect the Great Lakes.

Enbridge presents Line 5 Straits of Mackinac replacement alternatives to State of Michigan
Study IDs tunnel and open-cut secondary containment installations as feasible options
Enbridge's Line 5 water crossings safety study
This comprehensive report, delivered on June 29, 2018 to the State of Michigan, examines potential safety enhancements at Line 5 water crossings other than the Straits of Mackinac.
Enbridge's Line 5 Straits anchor strike mitigation study
This comprehensive report, presented to the State of Michigan on June 29, 2018, explores options for protecting Enbridge's Line 5 from anchor strikes in the Straits of Mackinac.
Infographic: An early-warning alert system in the Straits
Enbridge has identified Vesper Marine's Guardian:protect communications system as a powerful tool to bolster shipping traffic safety in the Straits of Mackinac.
Line 5 fact sheets and brochures

Read more about Line 5, the multiple safety precautions we take in the Straits of Mackinac, and the line's benefits to the Michigan economy.

Media statement: Enbridge delivers three assessments for enhancing protection
Enbridge has delivered to the State of Michigan three assessments evaluating technologies and actions aimed at safeguarding the environment and energy infrastructure.
Contact Enbridge in Michigan

We'd like to hear from you.

Line 5 inspections

Regular examinations of the pipe, both inside and out.