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Channels in Straits of Mackinac, Michigan

Detroit District
Published Jan. 9, 2024

Located between Michigan's Upper and Lower Peninsulas. Deep draft commercial project that provides for a 1,250 feet wide channel between Mackinac Island and Round Island; and for removal of the Poe Reef shoal. Project depth is 30 feet.

Project Map - Straits of Mackinac
Project Map - Lansing Shoal

2023 PDF  eHydro Website
Round Island Passage  
Poe Reef Shoal  
   
2021 PDF 2021 DGN
Round Island Passage Round Island Passage
Poe Reef Shoal Poe Reef Shoal
Lansing Shoal Lansing Shoal
   
2019 PDF 2019 DGN
Round Island Passage  Round Island Passage
Poe Reef Shoal  Poe Reef Shoal
Lansing Shoal Lansing Shoal

Chick Lock

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