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Line 5 in Michigan
Line 5 in Michigan
Line 5 Tunnel Project Proposal Enbridge Energy Limited Partnership is currently seeking approval to build a utility tunnel and to replace and relocate the portion of the Line 5 pipeline that runs beneath the Straits of Mackinac. The proposed tunnel would house the replacement segment for the Line 5 petroleum pipeline that sits on the bottom of the Straits.
Review and permitting decisions for the proposed project involve multiple state agencies and the U.S. Army Corps of Engineers. This webpage is intended to provide an overview of the routine regulatory permitting process that the proposed project will require.
Public comment
EGLE has established a dedicated permit application email account related to the proposed tunnel project.
Find past and upcoming opportunities for public comment on the proposed Line 5 pipeline and tunnel.