Dubuque Boat & Boiler Works
Iowa Iron Works, renamed Dubuque Boat and Boiler Works in 1904, was a manufacturing company established in Dubuque, Iowa in 1883.
Sprague built in 1901, was the world's largest steam powered sternwheeler towboat. 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). A model of Sprague is in the National Mississippi River Museum in Dubuque.
United States Coast Guard inland construction tender USCGC Smilax (WLIC-315) built 1943–1944, was designated Queen of the Fleet, the Coast Guard's oldest commissioned cutter, in April 2011.
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