Vicksburg in Warren County, Mississippi — The American South (East South Central)
Motor Vessel Mississippi IV
Commissioned in 1961, the Mississippi IV plied the Mississippi River for more than 30 years. Though it was the fourth Corps vessel to bear the name "Mississippi," she was the first to employ diesel power, and this shift brought with it the designation "Motor Vessel". Mississippi IV marked the advance of new technologies of the 1950s; steamboat manufacturers were turning to newer, more powerful diesel engines and producing fewer steamboat replacement parts, making it increasingly difficult to maintain steam-driven vessels. Although signaling the end of the steam era on the Mississippi River and the demise of the 19th-century technology that brought prosperity to the Mississippi Valley, Mississippi IV fulfilled the vision of the Corps for a workboat with a larger towing capacity and improved handling in rough waters, and maintained the needs of the MRC.
Mississippi IV served a dual role as both a workboat and an ambassador to citizens of the Lower Mississippi Valley. As a towboat, the vessel was a common sight along the Mississippi River as it delivered equipment and materials to Corps project sites generally administered by the Corps' Memphis District. As a public ambassador, the vessel also hosted the public meetings of the Mississippi River Commission (MRC) during the Commission's biannual inspection tours from Illinois to coastal Louisiana. This dual role as Corps workhorse and MRC flagship required a vessel that combined functionality with public space. Mississippi IV utilized new technology and innovative design to meet the needs of the Corps, the MRC, and the general public.
On April 8, 1993, "Decommissioning-Commissioning Day," the Corps retired Mississippi IV. The vessel was stored for more than a decade while plans developed for the Lower Mississippi River Museum to be built in Vicksburg, Mississippi. Mississippi IV was cosmetically restored in Morgan City, Louisiana, and moved by barge to Vicksburg in 2007. Now gently perched atop a concrete cradle near the waterfront, Mississippi IV continues her role as a public ambassador as a centerpiece of the Lower Mississippi River Museum which opened in 2012.
Erected by U.S. Army Corps of Engineers.
Topics. This historical marker is listed in this topic list: Waterways & Vessels. A significant historical year for this entry is 1961.
Location. 32° 21.224′ N, 90° 52.896′ W. Marker is in Vicksburg, Mississippi, in Warren County. Marker is on Washington Street (Business U.S. 61) north of Jackson Street, on the left when traveling north. Marker is located along the sidewalk just north of the Lower Mississippi River Museum, overlooking the Mississippi IV exhibit. Touch for map. Marker is at or near this postal address: 910 Washington Street, Vicksburg MS 39183, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Mississippi River Commission (a few steps from this marker); Flagships of the MRC (within shouting distance of this marker); C.S. Company A, (within shouting distance of this marker); 61 Highway (about 300 feet away, measured in a direct line); William R. Ferris (about 600 feet away); Railroads and Rivers (about 600 feet away); Jitney Jungle (about 700 feet away); Governor and Mrs. Kirk Fordice (about 700 feet away). Touch for a list and map of all markers in Vicksburg.
Related markers. Click here for a list of markers that are related to this marker. Mississippi River Commission
Additional keywords. Motor Vessel Mississippi IV

Photographed By Cosmos Mariner, May 10, 2016
6. Mississippi IV
Explore the Motor Vessel Mississippi IV
US Army Corps of Engineers Vicksburg District website entry
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US Army Corps of Engineers Vicksburg District website entry
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Credits. This page was last revised on December 9, 2021. It was originally submitted on December 20, 2020, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 339 times since then and 131 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on December 22, 2020, by Cosmos Mariner of Cape Canaveral, Florida.