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USCGC Mackinaw (WLBB-30) is a 240-foot (73 m) multi-purpose vessel with a primary mission as a heavy icebreaker specifically built for operations on the North American Great Lakes for the United States Coast Guard. [3] IMO number: 9271054. Her larger precursor, the USCGC Mackinaw (WAGB-83), IMO number 6119534, had a 62-year career on the same ...
The USCGC Mackinaw (WAGB-83) as seen from her permanent berth at the SS Chief Wawatam dock at Mackinaw City, Michigan, 2019. USCGC Mackinaw (WAGB-83) is a decommissioned United States Coast Guard icebreaker which operated on the Great Lakes for 62 years. A state-of-the-art icebreaker when she was launched in 1944, Mackinaw was built to extend ...
The Chicago River is a system of rivers and canals with a combined length of 156 miles (251 km) [1] that runs through the city of Chicago, including its center (the Chicago Loop). [2] Though not especially long, the river is notable because it is one of the reasons for Chicago's geographic importance: the related Chicago Portage is a link ...
River icebreaker. A river icebreaker is an icebreaker specially designed to operate in shallow waters such as rivers and estuaries, and often able to pass through canals and under bridges. [1] As published by the American Society of Civil Engineers in 1916, "On some rivers, particularly where melting first takes place on the upper river, as on ...
Polar class. Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness ...
USCGC Healy (WAGB-20) is the United States' largest and most technologically advanced icebreaker as well as the US Coast Guard 's largest vessel. [1] She is classified as a medium icebreaker by the Coast Guard. [1] She is homeported in Seattle, Washington, and was commissioned in 1999. On 6 September 2001 Healy visited the North Pole for the ...
Marina City. Marina City is a mixed-use residential-commercial building complex in Chicago, Illinois, United States, North America, designed by architect Bertrand Goldberg. The multi-building complex on State Street on the north bank of the Chicago River on the Near North Side, directly across from the Loop, opened between 1963 and 1967. [ 1 ]
Icebreaker. USCGC Healy (WAGB-20) at right breaks ice around the Russian-flagged tanker Renda, 250 miles (400 km) south of Nome, Alaska. An icebreaker is a special-purpose ship or boat designed to move and navigate through ice -covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ...