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Enbridge Line 5 Tunnel

Sector: Tunnel • Location: Michigan, United States

Source: MLive

Project
Planned

The Enbridge Line 5 tunnel is a proposed utility tunnel beneath the Straits of Mackinac in Michigan to house a replacement pipeline. The project involves constructing a tunnel to replace the existing pipeline crossing under the straits, with ownership by a state authority leasing it back to Enbridge. The project has raised concerns about long-term liability and financial risks to the state of Mich

Status
Prospective
Sector
Tunnel, Power Transmission, Power Generation (CCGT), Government
Location
Michigan, United States of America
Updated
22 Jul 2026
Source
MLive

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Project Information

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The project “Enbridge Line 5 Tunnel” is an infrastructure initiative in the Tunnel sector, located in Michigan, United States. Taiyo aggregates data on it from MLive.

Participants

Sponsoring Agency

Company

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The Enbridge Line 5 tunnel is a proposed utility tunnel beneath the Straits of Mackinac in Michigan to house a replacement pipeline. The project involves constructing a tunnel to replace the existing pipeline crossing under the straits, with ownership by a state authority leasing it back to Enbridge. The project has raised concerns about long-term liability and financial risks to the state of Michigan.

Original sector

Energy

Location

Country

United States of America (USA)

State

Michigan

Source

Source

MLive

URL

More Details

Record type

Project

Sector

Tunnel, Power Transmission, Power Generation (CCGT), Government

Article published date

2025-12-05

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