LAURA HERBERG, JUSTIN A. HINKLEY and KELLY HOUSE/Bridge Michigan Energy & Environment Feds issue Line 5 tunnel permit, call it ‘not contrary to the public interest’ LAURA HERBERG, JUSTIN A. HINKLEY and KELLY HOUSE/Bridge Michigan The project would divert a section of the Line 5 petroleum pipeline from the open waters of the Straits into a concrete tunnel beneath the lakebed.