Skip to main content

Line 5: documents

Browse all pending and past permit application documents

Enbridge Energy, Line 5, Straits of Mackinac documents

Resource permit documents

Documents associated with NPDES Permit MI0060278 - Issued January 29, 2021

Documents for MI0060278 permit reissuance are currently being drafted.

For more information

Find the latest updates on the Line 5 homepage

Information on the Line 5 tunnel project proposal by Enbridge, including overview, timelines, recent permit documents and decisions, and more.

Go to Line 5 home
Straits of Mackinac - aerial view