Delivering the energy that keeps Michigan moving since 1953.
Voices of support: Line 5 Straits tunnel

Public support for our Line 5 tunnel plan has come from elected officials, policy experts, media columnists and editorial boards—from Michigan and elsewhere.

The impact of a Line 5 shutdown

Shutting down Line 5, even temporarily, would have immediate and severe consequences on the economies of Michigan, Ohio, Ontario, and elsewhere.

Fact sheet: Line 5 Straits of Mackinac tunnel

A Line 5 Straits of Mackinac tunnel would be state of the art, with enhanced safety features, further demonstrating Enbridge’s commitment to protecting Michigan’s natural resources.


Enbridge support vessels now patrolling Straits of Mackinac 24/7

Thermal imaging technology confirms anchors are stowed on all nighttime shipping traffic

Rock sampling work complete in Michigan's Straits of Mackinac

Construction of Enbridge’s Great Lakes Tunnel advanced with the recent completion of sediment and rock sampling at the Straits of Mackinac.

Additional safety measures will reduce anchor-strike risk in the Straits of Mackinac

Trio of extra safeguards will be in place while Line 5 underground tunnel is built

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.
Safety. First.

Safety is not just a core value at Enbridge. Ensuring the safety of communities and the environment will always be our top priority—and it’s the foundation of everything we do.

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
Line 5: A vital piece of Michigan's energy infrastructure

Line 5 moves products that heat homes and businesses, fuel vehicles, and power industry throughout the state.

Enbridge welcomes State approval to commence geotechnical program

The State of Michigan has affirmed Enbridge's rights to collect geotechnical samples as permitted by the Department of Environment, Great Lakes and Energy, in relation to our Line 5 Straits of Mackinac tunnel project.

Advancing renewable energy

We never stop thinking about the future of energy and sustainability. That’s why we’re investing in renewable energy projects that complement our system, and meet the demand for safe, reliable and affordable energy well into the future.

About Line 5
A vital piece of Michigan energy infrastructure since 1953.
Enbridge's response to COVID-19
COVID-19 has created an extraordinary set of circumstances and challenges. As a company, and a team that is part of thousands of ...
Seven ways to protect Michigan's water
November 2017 agreement between Enbridge and Michigan outlines seven actions to protect State's water.
Safeguarding the Great Lakes

We take special precautions to protect the Great Lakes.

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.

Line 5 inspections

Regular examinations of the pipe, both inside and out.

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.
Contact Enbridge in Michigan

We'd like to hear from you.

Line 5 operations and maintenance

Multi-layered protections have maintained Line 5 safety for more than six decades.