Coast Guard Cutter Mackinaw.
During World War II the first USCG Mackinaw was constructed for the purpose of keeping the shipping lanes open on the Great Lakes during the winter months to ensure that the ore carriers could keep moving to ensure steel production would not be hampered. That boat served proudly on the Great Lakes until she was decommissioned in 2006.
The new USCG Mackinaw, WLBB-30, replaced her as a multi purpose ice breaker, buoy tender and her home port remained in Cheboygan Michigan as she is pictured here.
Her mission now ice breaking, buoy tending, search and rescue, homeland security operations, pollution response, law enforcement, and public affairs.
She is 240 ft. long and a 58 ft. beam, and a 16 ft. draft and a maximum speed of 15 kts.
The Great Lakes shipping season is considered to be 42 weeks. Ice breaking is required for 12 of those weeks. At one time they did try to maintain shipping channels year round but this proved to be too difficult.
As a side note th...