WILLIAM M. BLACK (Dredge) - View this location on map Constructed in 1934, this steam-propelled, sternwheel dustpan dredge is one of a handful of such vessels preserved in this in this country. Black played a major role in the improvement of the Missouri River system, where dredges deepened and redirected the Western rivers, fought levee failures to prevent floods, and allowed the spread of navigation to regions previously inaccessible. She was decommissioned in 1973. 350 East Third Street, Dubuque, Iowa Historical, Kids

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