What is the latest status of the project “Line 5 Tunnel Under Straits of Mackinac”?

The status recorded for “Line 5 Tunnel Under Straits of Mackinac” is Under Construction.

Who are the main government, EPC, and private stakeholders for “Line 5 Tunnel Under Straits of Mackinac”?

Taiyo maps the stakeholders of “Line 5 Tunnel Under Straits of Mackinac”: EPCs/contractors (Enbridge).

Where can I verify the source and access all details for “Line 5 Tunnel Under Straits of Mackinac”?

This Taiyo project page references Blue Water Healthy Living along with the original URL (https://bluewaterhealthyliving.com/news/local-news/court-of-appeals-sides-with-enbridge-on-line-5-tunnel-under-straits-of-mackinac/). Taiyo standardizes official data into a consistent, searchable project profile.

Line 5 Tunnel Under Straits of Mackinac

Sector: Water Supply and Storage • Location: Michigan, United States

Source: Blue Water Healthy Living

Project

Under Construction

The project involves the construction of a tunnel under the Straits of Mackinac to house Enbridge's Line 5 pipeline, which has faced legal challenges from various parties including environmental groups and tribes. The Michigan Public Service Commission approved the permit for this project in December 2023, and a recent court ruling has upheld this decision.

Status: Under Construction
Sector: Water Supply and Storage, Tunnel
Location: Michigan, United States of America
Updated: 22 Jul 2026
Source: Blue Water Healthy Living

ConstructChat

Ask ConstructChat about Line 5 Tunnel Under Straits of Mackinac

Pick a question to edit it, or write your own.

First answer free · no account

I am a

Project Information

4 Q

The project “Line 5 Tunnel Under Straits of Mackinac” is an infrastructure initiative in the Water Supply and Storage sector, located in Michigan, United States. Taiyo aggregates data on it from Blue Water Healthy Living.

Participants

Company

Status

Original status	Under Construction
Taiyo status	Under Construction
Taiyo last update	2026-07-22

Contact

Not available for this record.

Description

Location

Country	United States of America (USA)
State	Michigan

Source

Source	Blue Water Healthy Living
URL

More Details

Record type	Project
Sector	Water Supply and Storage, Tunnel
Article published date	2025-03-09

Research

Free account

View all details

You are reading the public part. A free account opens the rest:

Every detail on this project
News and media coverage
Technical research

View all details

Free account · no card · lands you back on this project

Line 5 Tunnel Under Straits of Mackinac

Ask ConstructChat about Line 5 Tunnel Under Straits of Mackinac

Project Information FAQ

Project Information

Research

View all details

More Water Supply and Storage projects in United States