Sprague (towboat)
Vicksburg, United States
Sprague, built at Dubuque, Iowa's Iowa Iron Works in 1901 by Captain Peter Sprague for the Monongahela River Consolidated Coal and Coke Company, was the world's largest steam powered sternwheeler towboat. She was nicknamed Big Mama, and was capable of pushing 56 coal barges at once. In 1907, Sprague set a world's all-time record for towing: 60 barges of coal, weighing 67,307 tons, covering an area of 6+1⁄2 acres, and measuring 925 feet (282 m) by 312 feet (95 m). She was decommissioned as a towboat in 1948.
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