Line 5 Tunnel Project in the Straits of Mackinac
Permitted · Michigan · Last reported Jul 2026
Source: WJFW
The Line 5 tunnel project involves constructing a concrete-lined tunnel deep beneath the Straits of Mackinac to replace the existing 4-mile segment of the pipeline that currently runs through open water. The project aims to eliminate the oil spill risk posed by the existing lakebottom pipelines and includes impacts to wetlands, rare species, and Native American burial sites. The project is expecte
- Status
- Prospective
- Sector
- Water Supply and Storage, Cement, Oil and Gas, Tunnel
- Location
- Michigan, United States of America
- Updated
- 22 Jul 2026
- Source
- WJFW
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Project Information
Participants
| Not available for this record. |
Status
Original status | permitted |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The Line 5 tunnel project involves constructing a concrete-lined tunnel deep beneath the Straits of Mackinac to replace the existing 4-mile segment of the pipeline that currently runs through open water. The project aims to eliminate the oil spill risk posed by the existing lakebottom pipelines and includes impacts to wetlands, rare species, and Native American burial sites. The project is expected to cost billions and complete construction by 2030. |
Original sector | Energy Infrastructure |
Location
Country | United States of America (USA) |
State | Michigan |
Source
Source | WJFW |
URL |
More Details
Record type | Project |
Sector | Water Supply and Storage, Cement, Oil and Gas, Tunnel |
Article published date | 2026-07-19 |
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