2/10/2026

UPPER MICHIGAN - The U.S. Army Corps of Engineers has released the final version of its Environmental Impact Statement for Enbridge’s proposed Line 5 Tunnel Project under the Straits of Mackinac.  The USACE has been examining the scope, construction and need for Enbridge’s Line 5 project for several months. The proposed project would replace the current Line 5 Pipeline and place it in a tunnel buried underground in a one-foot-thick concrete liner.  The USACE just released its final statement on the environmental impact, which assesses the possible risks to the Great Lakes and the surrounding environment. It also assesses possible alternatives to the proposed project. The review will be used to determine if the permit can be issued.  Several groups and tribes have opposed the project, even filing legal challenges with the Michigan Supreme Court. Flow Water Advocates is one of those groups.  A final permitting decision from the Army Corps of Engineers is expected within 30 days.