Columbus, IN. Online Offers. Columbus ( /kÉlÊmbÉs/) is a city in and the county seat of Bartholomew County, Indiana, United States. The population was 44,061 at the 2010 census, and the current mayor is Fred Armstrong.
In 1951, the U.S. Army Corps of Engineers began construction of the New Orleans Mississippi River Floodwall under the Dumaine Street Wharf. Between 1973 and 1992, 15 major sections were built at a cost of $30 million.
The flood in 1735 lasted six months and apparently destroyed most Louisiana levees. In 1743 an ordinance was passed threatening landowners with loss of their property if their levees were not rebuilt. In 1810 the City of New Orleans was setting proportions for levees by city ordinance.